Merge pull request #110 from j0k3r/fix/psr-monolog

[1.x] Allow new psr/log & monolog

.editorconfig

@@ -4,9 +4,10 @@ root = true
 ; Unix-style newlines
 [*]
 end_of_line = LF
-
-[*.php]
 indent_style = space
 indent_size = 4
 trim_trailing_whitespace = true
 insert_final_newline = true
+
+[.github/**.yml]
+indent_size = 2

.gitattributes

@@ -4,6 +4,7 @@
 /.scrutinizer.yml export-ignore
 /.travis.yml export-ignore
 /.php_cs export-ignore
-/README.md export-ignore
 /phpunit.xml.dist export-ignore
+/phpstan.neon export-ignore
+/.github export-ignore
 /tests export-ignore

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: j0k3r

.github/workflows/coding-standards.yml

@@ -0,0 +1,55 @@
+name: "CS"
+
+on:
+  pull_request:
+    branches:
+      - master
+      - 1.x
+  push:
+    branches:
+      - master
+      - 1.x
+
+env:
+  SYMFONY_PHPUNIT_VERSION: 7.5
+
+jobs:
+  coding-standards:
+    name: "CS Fixer & PHPStan"
+    runs-on: "ubuntu-latest"
+
+    strategy:
+      matrix:
+        php:
+          - "7.4"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v4"
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          php-version: "${{ matrix.php }}"
+          tools: cs2pr, composer:v2
+          ini-values: "date.timezone=Europe/Paris"
+        env:
+          COMPOSER_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: "Add PHPStan"
+        run: "composer require phpstan/phpstan phpstan/phpstan-phpunit --dev --no-progress --no-suggest"
+
+      - name: "Install dependencies with Composer"
+        uses: "ramsey/composer-install@v3"
+        with:
+          composer-options: "--optimize-autoloader --prefer-dist"
+
+      - name: "Run PHP CS Fixer"
+        run: "php vendor/bin/php-cs-fixer fix --verbose --dry-run --format=checkstyle | cs2pr"
+
+      - name: "Install PHPUnit for PHPStan"
+        run: "php vendor/bin/simple-phpunit install"
+
+      - name: "Run PHPStan"
+        run: "php vendor/bin/phpstan analyse --error-format=checkstyle | cs2pr"

.github/workflows/continuous-integration.yml

@@ -0,0 +1,154 @@
+name: "CI"
+
+on:
+  pull_request:
+    branches:
+      - "master"
+      - "1.x"
+  push:
+    branches:
+      - "master"
+      - "1.x"
+
+env:
+  fail-fast: true
+
+jobs:
+  phpunit:
+    name: "PHPUnit (PHP ${{ matrix.php }})"
+    runs-on: "ubuntu-latest"
+
+    strategy:
+      matrix:
+        php:
+          - "7.2"
+          - "7.3"
+          - "7.4"
+          - "8.0"
+          - "8.1"
+          - "8.2"
+          - "8.3"
+          - "8.4"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v4"
+        with:
+          fetch-depth: 2
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          php-version: "${{ matrix.php }}"
+          coverage: "none"
+          tools: composer:v2
+          extensions: tidy
+          ini-values: "date.timezone=Europe/Paris"
+        env:
+          COMPOSER_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: "Remove useless deps"
+        run: "composer remove friendsofphp/php-cs-fixer --dev --no-progress --no-update"
+
+      - name: "Install dependencies with Composer"
+        uses: "ramsey/composer-install@v3"
+        with:
+          composer-options: "--optimize-autoloader --prefer-dist"
+
+      - name: "Setup logs"
+        run: "mkdir -p build/logs"
+
+      - name: "Run PHPUnit"
+        run: "php vendor/bin/simple-phpunit -v"
+
+  phpunit-coverage:
+    name: "PHPUnit coverage (PHP ${{ matrix.php }})"
+    runs-on: "ubuntu-latest"
+
+    strategy:
+      matrix:
+        php:
+          - "7.4"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v4"
+        with:
+          fetch-depth: 2
+
+      - name: "Install PHP with Xdebug"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          php-version: "${{ matrix.php }}"
+          coverage: "xdebug"
+          tools: composer:v2
+          extensions: tidy
+          ini-values: "date.timezone=Europe/Paris"
+        env:
+          COMPOSER_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: "Remove useless deps"
+        run: "composer remove friendsofphp/php-cs-fixer --dev --no-progress --no-update"
+
+      - name: "Install dependencies with Composer"
+        uses: "ramsey/composer-install@v3"
+        with:
+          composer-options: "--optimize-autoloader --prefer-dist"
+
+      - name: "Setup logs"
+        run: "mkdir -p build/logs"
+
+      - name: "Run PHPUnit (with coverage)"
+        run: "php vendor/bin/simple-phpunit -v --coverage-clover build/logs/clover.xml"
+
+      - name: "Retrieve Coveralls phar"
+        run: "wget https://github.com/php-coveralls/php-coveralls/releases/download/v2.4.2/php-coveralls.phar"
+
+      - name: "Enable Coveralls phar"
+        run: "chmod +x php-coveralls.phar"
+
+      - name: "Upload to Coveralls"
+        run: "php php-coveralls.phar -v -x build/logs/clover.xml"
+        env:
+          COVERALLS_REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  phpunit-lowest:
+    name: "PHPUnit lowest deps (PHP ${{ matrix.php }})"
+    runs-on: "ubuntu-latest"
+
+    strategy:
+      matrix:
+        php:
+          - "7.4"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v4"
+        with:
+          fetch-depth: 2
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          php-version: "${{ matrix.php }}"
+          coverage: "none"
+          tools: composer:v2
+          extensions: tidy
+          ini-values: "date.timezone=Europe/Paris"
+        env:
+          COMPOSER_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: "Remove useless deps"
+        run: "composer remove friendsofphp/php-cs-fixer --dev --no-progress --no-update"
+
+      - name: "Install dependencies with Composer"
+        uses: "ramsey/composer-install@v3"
+        with:
+          composer-options: "--optimize-autoloader --prefer-dist"
+          dependency-versions: "lowest"
+
+      - name: "Setup logs"
+        run: "mkdir -p build/logs"
+
+      - name: "Run PHPUnit"
+        run: "php vendor/bin/simple-phpunit -v"

.gitignore

@@ -2,3 +2,5 @@ vendor/
 coverage/
 composer.lock
 .php_cs.cache
+.phpunit.result.cache
+phpstan.neon

.php-cs-fixer.php

@@ -0,0 +1,35 @@
+<?php
+
+$finder = (new PhpCsFixer\Finder())
+    ->in(__DIR__)
+    ->exclude(['vendor', 'var', 'web'])
+;
+
+return (new PhpCsFixer\Config())
+    ->setUsingCache(true)
+    ->setRiskyAllowed(true)
+    ->setRules([
+        '@Symfony' => true,
+        '@Symfony:risky' => true,
+        'array_syntax' => ['syntax' => 'short'],
+        'combine_consecutive_unsets' => true,
+        'heredoc_to_nowdoc' => true,
+        'no_extra_blank_lines' => ['tokens' => ['break', 'continue', 'extra', 'return', 'throw', 'use', 'parenthesis_brace_block', 'square_brace_block', 'curly_brace_block']],
+        'no_unreachable_default_argument_value' => true,
+        'no_useless_else' => true,
+        'no_useless_return' => true,
+        'ordered_class_elements' => true,
+        'ordered_imports' => true,
+        'php_unit_strict' => false,
+        'phpdoc_order' => true,
+        // 'psr4' => true,
+        'strict_comparison' => true,
+        'strict_param' => true,
+        'concat_space' => ['spacing' => 'one'],
+        // Pulled in by @Symfony, we cannot add property types until we bump PHP to ≥ 7.4
+        'no_null_property_initialization' => false,
+        // Pulled in by @Symfony with `const` but const visibility requires PHP ≥ 7.1
+        'visibility_required' => ['elements' => ['method', 'property']],
+    ])
+    ->setFinder($finder)
+;

.php_cs

@@ -1,20 +0,0 @@
-<?php
-
-return Symfony\CS\Config\Config::create()
-    ->setUsingCache(true)
-    ->level(Symfony\CS\FixerInterface::SYMFONY_LEVEL)
-    // use default SYMFONY_LEVEL and extra fixers:
-    ->fixers(array(
-        'concat_with_spaces',
-        'ordered_use',
-        'phpdoc_order',
-        'strict',
-        'strict_param',
-        'long_array_syntax',
-    ))
-    ->finder(
-        Symfony\CS\Finder\DefaultFinder::create()
-            ->in(__DIR__)
-            ->exclude(array('vendor'))
-    )
-;

.scrutinizer.yml

@@ -1,2 +1,12 @@
 tools:
     external_code_coverage: false
+
+build:
+    nodes:
+        analysis:
+            tests:
+                override:
+                    - php-scrutinizer-run
+            environment:
+                php:
+                    version: 7.2

.travis.yml

@@ -1,53 +0,0 @@
-language: php
-
-php:
-    - 5.3.3
-    - 5.3
-    - 5.4
-    - 5.5
-    - 5.6
-    - 7.0
-    - 7.1
-    - nightly
-    - hhvm
-
-matrix:
-    include:
-        - php: 7.0
-          env: CS_FIXER=run
-    fast_finish: true
-    allow_failures:
-        - php: hhvm
-        - php: nightly
-
-# faster builds on new travis setup not using sudo
-sudo: false
-
-# cache vendor dirs
-cache:
-    directories:
-        - vendor
-        - $HOME/.composer/cache
-
-before_install:
-    - if [ -n "$GH_TOKEN" ]; then composer config github-oauth.github.com ${GH_TOKEN}; fi;
-    # disable TLS for composer because openssl is disabled for PHP 5.3.3 on travis
-    # see: https://blog.travis-ci.com/upcoming_ubuntu_11_10_migration/
-    - if [[ $TRAVIS_PHP_VERSION = 5.3.3 ]]; then composer config -g -- disable-tls true; fi;
-    - if [[ $TRAVIS_PHP_VERSION = 5.3.3 ]]; then composer config -g -- secure-http false; fi;
-    # no version compatible with PHP > 7.1
-    - if [[ $TRAVIS_PHP_VERSION = 7.2.* ]]; then composer remove friendsofphp/php-cs-fixer; fi;
-
-install:
-    - composer self-update
-
-before_script:
-    - composer install --prefer-dist --no-interaction
-
-script:
-    - mkdir -p build/logs
-    - phpunit -v --coverage-clover build/logs/clover.xml
-    - if [ "$CS_FIXER" = "run" ]; then php vendor/bin/php-cs-fixer fix --verbose --dry-run ; fi;
-
-after_script:
-    - php vendor/bin/coveralls -v

README.md

@@ -1,7 +1,9 @@
 # Readability
 
-[![Build Status](https://travis-ci.org/j0k3r/php-readability.svg?branch=master)](https://travis-ci.org/j0k3r/php-readability)
+![CI](https://github.com/j0k3r/php-readability/workflows/CI/badge.svg)
 [![Coverage Status](https://coveralls.io/repos/j0k3r/php-readability/badge.svg?branch=master&service=github)](https://coveralls.io/github/j0k3r/php-readability/?branch=master)
+[![Total Downloads](https://poser.pugx.org/j0k3r/php-readability/downloads)](https://packagist.org/packages/j0k3r/php-readability)
+[![License](https://poser.pugx.org/j0k3r/php-readability/license)](https://packagist.org/packages/j0k3r/php-readability)
 
 This is an extract of the Readability class from this [full-text-rss](https://github.com/Dither/full-text-rss) fork. It can be defined as a better version of the original [php-readability](https://bitbucket.org/fivefilters/php-readability/overview).
 
@@ -17,9 +19,9 @@ The default php-readability lib is really old and needs to be improved. I found
 
 ## Requirements
 
-By default, this lib will use the [Tidy extension](https://github.com/htacg/tidy-html5) if it's available. Tidy is only used to cleanup the given HTML and avoid problems with bad HTML structure, etc ..
+By default, this lib will use the [Tidy extension](https://github.com/htacg/tidy-html5) if it's available. Tidy is only used to cleanup the given HTML and avoid problems with bad HTML structure, etc .. It'll be suggested by Composer.
 
-Since Composer doesn't support suggestion on PHP extension, I write this suggestion here.
+Also, if you got problem from parsing a content without Tidy installed, please install it and try again.
 
 ## Usage
 

composer.json

@@ -24,15 +24,28 @@
         "role": "Developer (original JS version)"
     }],
     "require": {
-        "php": ">=5.3.3",
+        "php": ">=7.2",
-        "psr/log": "^1.0"
+        "ext-mbstring": "*",
+        "psr/log": "^1.0.1 || ^2.0 || ^3.0",
+        "masterminds/html5": "^2.7"
     },
     "require-dev": {
-        "satooshi/php-coveralls": "~0.6",
+        "friendsofphp/php-cs-fixer": "^2.14",
-        "friendsofphp/php-cs-fixer": "<2",
+        "monolog/monolog": "^1.24|^2.1|^3.0",
-        "monolog/monolog": "^1.13"
+        "symfony/phpunit-bridge": "^4.4|^5.3|^6.0|^7.0"
+    },
+    "suggest": {
+        "ext-tidy": "Used to clean up given HTML and to avoid problems with bad HTML structure."
     },
     "autoload": {
         "psr-4": { "Readability\\": "src/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "Tests\\Readability\\": "tests/" }
+    },
+    "scripts": {
+        "fix": "php-cs-fixer fix --verbose --diff",
+        "phpstan": "phpstan analyze --memory-limit 512M",
+        "test": "simple-phpunit -v"
     }
 }

phpstan.dist.neon

@@ -0,0 +1,13 @@
+parameters:
+    level: 1
+    paths:
+        - src
+        - tests
+
+    # https://github.com/phpstan/phpstan/issues/694#issuecomment-350724288
+    bootstrapFiles:
+        - vendor/bin/.phpunit/phpunit/vendor/autoload.php
+
+includes:
+    - vendor/phpstan/phpstan-phpunit/extension.neon
+    - vendor/phpstan/phpstan-phpunit/rules.neon

phpunit.xml.dist

@@ -7,7 +7,6 @@
     convertWarningsToExceptions="true"
     processIsolation="false"
     stopOnFailure="false"
-    syntaxCheck="false"
     bootstrap="vendor/autoload.php"
     >
 
@@ -27,6 +26,6 @@
     </filter>
 
     <!-- <logging>
-        <log type="coverage-html" target="coverage" title="Readability" charset="UTF-8" yui="true" highlight="true" lowUpperBound="35" highLowerBound="70"/>
+        <log type="coverage-html" target="coverage" lowUpperBound="35" highLowerBound="70"/>
     </logging> -->
 </phpunit>

src/JSLikeHTMLElement.php

@@ -39,25 +39,39 @@ class JSLikeHTMLElement extends \DOMElement
     /**
      * Used for setting innerHTML like it's done in JavaScript:.
      *
-     * @code
+     * ```php
      * $div->innerHTML = '<h2>Chapter 2</h2><p>The story begins...</p>';
-     * @endcode
+     * ```
      */
     public function __set($name, $value)
     {
-        if ($name === 'innerHTML') {
+        if ('innerHTML' !== $name) {
+            $trace = debug_backtrace();
+            trigger_error('Undefined property via __set(): ' . $name . ' in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'], \E_USER_NOTICE);
+
+            return;
+        }
+
         // first, empty the element
+        if (isset($this->childNodes)) {
             for ($x = $this->childNodes->length - 1; $x >= 0; --$x) {
                 $this->removeChild($this->childNodes->item($x));
             }
+        }
 
         // $value holds our new inner HTML
-            if ($value !== '') {
+        $value = trim($value);
+        if (empty($value)) {
+            return;
+        }
+
+        // ensure bad entity won't generate warning
+        $previousError = libxml_use_internal_errors(true);
+
         $f = $this->ownerDocument->createDocumentFragment();
 
         // appendXML() expects well-formed markup (XHTML)
-                // @ to suppress PHP warnings
+        $result = $f->appendXML($value);
-                $result = @$f->appendXML($value);
         if ($result) {
             if ($f->hasChildNodes()) {
                 $this->appendChild($f);
@@ -65,14 +79,13 @@ class JSLikeHTMLElement extends \DOMElement
         } else {
             // $value is probably ill-formed
             $f = new \DOMDocument();
-                    $value = mb_convert_encoding($value, 'HTML-ENTITIES', 'UTF-8');
 
             // Using <htmlfragment> will generate a warning, but so will bad HTML
             // (and by this point, bad HTML is what we've got).
             // We use it (and suppress the warning) because an HTML fragment will
             // be wrapped around <html><body> tags which we don't really want to keep.
             // Note: despite the warning, if loadHTML succeeds it will return true.
-                    $result = @$f->loadHTML('<htmlfragment>' . $value . '</htmlfragment>');
+            $result = $f->loadHTML('<meta charset="utf-8"><htmlfragment>' . $value . '</htmlfragment>');
 
             if ($result) {
                 $import = $f->getElementsByTagName('htmlfragment')->item(0);
@@ -81,45 +94,50 @@ class JSLikeHTMLElement extends \DOMElement
                     $importedNode = $this->ownerDocument->importNode($child, true);
                     $this->appendChild($importedNode);
                 }
-                    } else {
-                        // oh well, we tried, we really did. :(
-                        // this element is now empty
             }
         }
-            }
+
-        } else {
+        libxml_clear_errors();
-            $trace = debug_backtrace();
+        libxml_use_internal_errors($previousError);
-            trigger_error('Undefined property via __set(): ' . $name . ' in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'], E_USER_NOTICE);
-        }
     }
 
     /**
      * Used for getting innerHTML like it's done in JavaScript:.
      *
-     * @code
+     * ```php
      * $string = $div->innerHTML;
-     * @endcode
+     * ```
      */
     public function __get($name)
     {
-        if ($name === 'innerHTML') {
+        if ('innerHTML' === $name) {
             $inner = '';
 
+            if (isset($this->childNodes)) {
                 foreach ($this->childNodes as $child) {
                     $inner .= $this->ownerDocument->saveXML($child);
                 }
+            }
 
             return $inner;
         }
 
         $trace = debug_backtrace();
-        trigger_error('Undefined property via __get(): ' . $name . ' in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'], E_USER_NOTICE);
+        trigger_error('Undefined property via __get(): ' . $name . ' in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'], \E_USER_NOTICE);
-
-        return;
     }
 
     public function __toString()
     {
         return '[' . $this->tagName . ']';
     }
+
+    public function getInnerHtml()
+    {
+        return $this->__get('innerHTML');
+    }
+
+    public function setInnerHtml($value)
+    {
+        return $this->__set('innerHTML', $value);
+    }
 }

tests/ReadabilityTest.php

@@ -6,22 +6,11 @@ use Monolog\Handler\TestHandler;
 use Monolog\Logger;
 use Readability\Readability;
 
-class ReadabilityTest extends \PHPUnit_Framework_TestCase
+class ReadabilityTest extends \PHPUnit\Framework\TestCase
 {
     public $logHandler;
     public $logger;
 
-    private function getReadability($html, $url = null, $parser = 'libxml', $useTidy = true)
-    {
-        $readability = new Readability($html, $url, $parser, $useTidy);
-
-        $this->logHandler = new TestHandler();
-        $this->logger = new Logger('test', array($this->logHandler));
-        $readability->setLogger($this->logger);
-
-        return $readability;
-    }
-
     /**
      * @requires extension tidy
      */
@@ -30,7 +19,16 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
         $readability = $this->getReadability('');
 
         $this->assertNull($readability->url);
-        $this->assertInstanceOf('DomDocument', $readability->dom);
+        $this->assertInstanceOf(\DOMDocument::class, $readability->dom);
+    }
+
+    public function testConstructHtml5Parser()
+    {
+        $readability = $this->getReadability('<html/>', 'http://0.0.0.0', 'html5lib');
+
+        $this->assertSame('http://0.0.0.0', $readability->url);
+        $this->assertInstanceOf(\DOMDocument::class, $readability->dom);
+        $this->assertSame('<html/>', $readability->original_html);
     }
 
     /**
@@ -40,9 +38,9 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
     {
         $readability = $this->getReadability('<html/>', 'http://0.0.0.0');
 
-        $this->assertEquals('http://0.0.0.0', $readability->url);
+        $this->assertSame('http://0.0.0.0', $readability->url);
-        $this->assertInstanceOf('DomDocument', $readability->dom);
+        $this->assertInstanceOf(\DOMDocument::class, $readability->dom);
-        $this->assertEquals('<html/>', $readability->original_html);
+        $this->assertSame('<html/>', $readability->original_html);
         $this->assertTrue($readability->tidied);
     }
 
@@ -51,19 +49,19 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
         $readability = $this->getReadability('', null, 'libxml', false);
 
         $this->assertNull($readability->url);
-        $this->assertEquals('', $readability->original_html);
+        $this->assertSame('', $readability->original_html);
         $this->assertFalse($readability->tidied);
 
-        $this->assertInstanceOf('DomDocument', $readability->dom);
+        $this->assertInstanceOf(\DOMDocument::class, $readability->dom);
     }
 
     public function testConstructSimpleWithoutTidy()
     {
         $readability = $this->getReadability('<html/>', 'http://0.0.0.0', 'libxml', false);
 
-        $this->assertEquals('http://0.0.0.0', $readability->url);
+        $this->assertSame('http://0.0.0.0', $readability->url);
-        $this->assertInstanceOf('DomDocument', $readability->dom);
+        $this->assertInstanceOf(\DOMDocument::class, $readability->dom);
-        $this->assertEquals('<html/>', $readability->original_html);
+        $this->assertSame('<html/>', $readability->original_html);
         $this->assertFalse($readability->tidied);
     }
 
@@ -75,8 +73,8 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
         $this->assertFalse($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('Sorry, Readability was unable to parse this page for content.', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('Sorry, Readability was unable to parse this page for content.', $readability->getContent()->getInnerHtml());
     }
 
     public function testInitP()
@@ -87,9 +85,9 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertContains('<div readability=', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('<div readability=', $readability->getContent()->getInnerHtml());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is the awesome content :)', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is the awesome content :)', $readability->getContent()->getInnerHtml());
     }
 
     public function testInitDivP()
@@ -100,251 +98,230 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertContains('<div readability=', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('<div readability=', $readability->getContent()->getInnerHtml());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is the awesome content :)', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is the awesome content :)', $readability->getContent()->getInnerHtml());
     }
 
     public function testInitDiv()
     {
         $readability = $this->getReadability('<div>' . str_repeat('This is the awesome content :)', 7) . '</div>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertContains('<div readability=', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('<div readability=', $readability->getContent()->getInnerHtml());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is the awesome content :)', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is the awesome content :)', $readability->getContent()->getInnerHtml());
     }
 
     public function testWithFootnotes()
     {
         $readability = $this->getReadability('<div>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '</div>', 'http://0.0.0.0');
-        $readability->debug = true;
         $readability->convertLinksToFootnotes = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertContains('<div readability=', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('<div readability=', $readability->getContent()->getInnerHtml());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertContains('readabilityFootnoteLink', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('readabilityFootnoteLink', $readability->getContent()->getInnerHtml());
-        $this->assertContains('readabilityLink-3', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('readabilityLink-3', $readability->getContent()->getInnerHtml());
     }
 
     public function testStandardClean()
     {
         $readability = $this->getReadability('<div><h2>Title</h2>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '<a href="#nofollow" rel="nofollow">will NOT be removed</a></div>', 'http://0.0.0.0');
-        $readability->debug = true;
         $readability->lightClean = false;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertContains('<div readability=', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('<div readability=', $readability->getContent()->getInnerHtml());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertContains('will NOT be removed', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('will NOT be removed', $readability->getContent()->getInnerHtml());
-        $this->assertNotContains('<h2>', $readability->getContent()->innerHTML);
+        $this->assertStringNotContainsString('<h2>', $readability->getContent()->getInnerHtml());
     }
 
     public function testWithIframe()
     {
         $readability = $this->getReadability('<div><h2>Title</h2>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '<p>This is an awesome text with some links, here there are <iframe src="http://youtube.com/test" href="#nofollow" rel="nofollow"></iframe><iframe>http://soundcloud.com/test</iframe></p></div>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertContains('<div readability=', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('<div readability=', $readability->getContent()->getInnerHtml());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertContains('nofollow', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('nofollow', $readability->getContent()->getInnerHtml());
     }
 
     public function testWithArticle()
     {
         $readability = $this->getReadability('<article><p>' . str_repeat('This is an awesome text with some links, here there are: the awesome', 20) . '</p><p>This is an awesome text with some links, here there are <iframe src="http://youtube.com/test" href="#nofollow" rel="nofollow"></iframe></p></article>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertContains('alt="article"', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('alt="article"', $readability->getContent()->getInnerHtml());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertContains('nofollow', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('nofollow', $readability->getContent()->getInnerHtml());
     }
 
     public function testWithAside()
     {
         $readability = $this->getReadability('<article>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '<footer><aside>' . str_repeat('<p>This is an awesome text with some links, here there are</p>', 8) . '</aside></footer></article>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertNotContains('<aside>', $readability->getContent()->innerHTML);
+        $this->assertStringNotContainsString('<aside>', $readability->getContent()->getInnerHtml());
-        $this->assertContains('<footer readability="4"/>', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('<footer readability="5"/>', $readability->getContent()->getInnerHtml());
     }
 
     public function testWithClasses()
     {
         $readability = $this->getReadability('<article>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '<div style="display:none">' . str_repeat('<p class="clock">This text should be removed</p>', 10) . '</div></article>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertContains('alt="article"', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('alt="article"', $readability->getContent()->getInnerHtml());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertNotContains('This text should be removed', $readability->getContent()->innerHTML);
+        $this->assertStringNotContainsString('This text should be removed', $readability->getContent()->getInnerHtml());
     }
 
     public function testWithClassesWithoutLightClean()
     {
         $readability = $this->getReadability('<article>' . str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7) . '<div style="display:none">' . str_repeat('<p class="clock">This text should be removed</p>', 10) . '</div></article>', 'http://0.0.0.0');
-        $readability->debug = true;
         $readability->lightClean = false;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertContains('alt="article"', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('alt="article"', $readability->getContent()->getInnerHtml());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertNotContains('This text should be removed', $readability->getContent()->innerHTML);
+        $this->assertStringNotContainsString('This text should be removed', $readability->getContent()->getInnerHtml());
     }
 
     public function testWithTd()
     {
         $readability = $this->getReadability('<table><tr>' . str_repeat('<td><p>This is an awesome text with some links, here there are the awesome</td>', 7) . '</tr></table>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
     }
 
     public function testWithSameClasses()
     {
         $readability = $this->getReadability('<article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<div class="awesomecontent">This text is also an awesome text and you should know that !</div></article>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertContains('This text is also an awesome text and you should know that', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This text is also an awesome text and you should know that', $readability->getContent()->getInnerHtml());
     }
 
     public function testWithScript()
     {
         $readability = $this->getReadability('<article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<p><script>This text is also an awesome text and you should know that !</script></p></article>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertEmpty($readability->getTitle()->innerHTML);
+        $this->assertEmpty($readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertNotContains('This text is also an awesome text and you should know that', $readability->getContent()->innerHTML);
+        $this->assertStringNotContainsString('This text is also an awesome text and you should know that', $readability->getContent()->getInnerHtml());
     }
 
     public function testTitle()
     {
         $readability = $this->getReadability('<title>this is my title</title><article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<p></p></article>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertEquals('this is my title', $readability->getTitle()->innerHTML);
+        $this->assertSame('this is my title', $readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertNotContains('This text is also an awesome text and you should know that', $readability->getContent()->innerHTML);
+        $this->assertStringNotContainsString('This text is also an awesome text and you should know that', $readability->getContent()->getInnerHtml());
     }
 
     public function testTitleWithDash()
     {
         $readability = $this->getReadability('<title> title2 - title3 </title><article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<p></p></article>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertEquals('title2 - title3', $readability->getTitle()->innerHTML);
+        $this->assertSame('title2 - title3', $readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertNotContains('This text is also an awesome text and you should know that', $readability->getContent()->innerHTML);
+        $this->assertStringNotContainsString('This text is also an awesome text and you should know that', $readability->getContent()->getInnerHtml());
     }
 
     public function testTitleWithDoubleDot()
     {
         $readability = $this->getReadability('<title> title2 : title3 </title><article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<p></p></article>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertEquals('title2 : title3', $readability->getTitle()->innerHTML);
+        $this->assertSame('title2 : title3', $readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertNotContains('This text is also an awesome text and you should know that', $readability->getContent()->innerHTML);
+        $this->assertStringNotContainsString('This text is also an awesome text and you should know that', $readability->getContent()->getInnerHtml());
     }
 
     public function testTitleTooShortUseH1()
     {
         $readability = $this->getReadability('<title>too short</title><h1>this is my h1 title !</h1><article class="awesomecontent">' . str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7) . '<p></p></article>', 'http://0.0.0.0');
-        $readability->debug = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
         $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertEquals('this is my h1 title !', $readability->getTitle()->innerHTML);
+        $this->assertSame('this is my h1 title !', $readability->getTitle()->getInnerHtml());
-        $this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This is an awesome text with some links, here there are', $readability->getContent()->getInnerHtml());
-        $this->assertNotContains('This text is also an awesome text and you should know that', $readability->getContent()->innerHTML);
+        $this->assertStringNotContainsString('This text is also an awesome text and you should know that', $readability->getContent()->getInnerHtml());
     }
 
-    // public function testConstructParser()
-    // {
-    //     $readability = $this->getReadability('<html/>', 'http://0.0.0.0', 'html5lib');
-
-    //     $this->assertEquals('http://0.0.0.0', $readability->url);
-    // }
-
     // dummy function to be used to the next test
-    public function error2Exception($code, $string, $file, $line, $context)
+    public function error2Exception($code, $string, $file, $line)
     {
         throw new \Exception($string, $code);
     }
 
     public function testAutoClosingIframeNotThrowingException()
     {
-        error_reporting(E_ALL | E_STRICT);
+        $oldErrorReporting = error_reporting(\E_ALL);
-        ini_set('display_errors', true);
+        $oldDisplayErrors = ini_set('display_errors', true);
-        set_error_handler(array($this, 'error2Exception'), E_ALL | E_STRICT);
+        set_error_handler([$this, 'error2Exception']);
 
+        try {
             $data = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
                 <html xmlns="http://www.w3.org/1999/xhtml" lang="ru-RU" prefix="og: http://ogp.me/ns#">
 
@@ -367,19 +344,27 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
                       </div>
                     </div>
                   </div>
+                </div>
+              </div>
             </body>
             </html>';
 
             $readability = $this->getReadability($data, 'http://iosgames.ru/?p=22030');
-        $readability->debug = true;
 
             $res = $readability->init();
 
             $this->assertTrue($res);
             $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
             $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
-        $this->assertContains('<iframe src="https://www.youtube.com/embed/PUep6xNeKjA" width="560" height="315" frameborder="0" allowfullscreen="allowfullscreen"> </iframe>', $readability->getContent()->innerHTML);
+            $this->assertStringContainsString('<iframe src="https://www.youtube.com/embed/PUep6xNeKjA" width="560" height="315" frameborder="0" allowfullscreen="allowfullscreen"> </iframe>', $readability->getContent()->getInnerHtml());
-        $this->assertContains('3D Touch', $readability->getTitle()->innerHTML);
+            $this->assertStringContainsString('3D Touch', $readability->getTitle()->getInnerHtml());
+        } finally {
+            restore_error_handler();
+            if (false !== $oldDisplayErrors) {
+                ini_set('display_errors', $oldDisplayErrors);
+            }
+            error_reporting($oldErrorReporting);
+        }
     }
 
     /**
@@ -432,7 +417,6 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
             </html>';
 
         $readability = $this->getReadability($data, 'http://0.0.0.0');
-        $readability->debug = true;
 
         $res = $readability->init();
 
@@ -443,13 +427,13 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
 
     public function testPostFilters()
     {
-        $readability = $this->getReadability('<div>' . str_repeat('<p>This <b>is</b> the awesome content :)</p>', 7) . '</div>', 'http://0.0.0.0');
+        $readability = $this->getReadability('<div>' . str_repeat('<p>This <strong>is</strong> the awesome content :)</p>', 10) . '</div>', 'http://0.0.0.0');
         $readability->addPostFilter('!<strong[^>]*>(.*?)</strong>!is', '');
 
         $res = $readability->init();
 
         $this->assertTrue($res);
-        $this->assertContains('This  the awesome content :)', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This  the awesome content :)', $readability->getContent()->getInnerHtml());
     }
 
     public function testPreFilters()
@@ -462,7 +446,7 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
         $res = $readability->init();
 
         $this->assertTrue($res);
-        $this->assertContains('This the awesome and WONDERFUL content :)', $readability->getContent()->innerHTML);
+        $this->assertStringContainsString('This the awesome and WONDERFUL content :)', $readability->getContent()->getInnerHtml());
     }
 
     public function testChildNodeGoneNull()
@@ -471,10 +455,103 @@ class ReadabilityTest extends \PHPUnit_Framework_TestCase
         $html = file_get_contents('tests/fixtures/childNodeGoesNull.html');
 
         $readability = $this->getReadability($html, 'http://0.0.0.0');
-        $readability->debug = true;
         $readability->convertLinksToFootnotes = true;
         $res = $readability->init();
 
         $this->assertTrue($res);
     }
+
+    public function testKeepFootnotes()
+    {
+        // from https://www.schreibdichte.de/blog/feed-aggregator-und-spaeter-lesen-dienst-im-team
+        $html = file_get_contents('tests/fixtures/keepFootnotes.html');
+
+        $readability = $this->getReadability($html, 'http://0.0.0.0');
+        $res = $readability->init();
+
+        $this->assertTrue($res);
+        $this->assertStringContainsString('<sup id="fnref1:fnfeed_2"><a href="#fn:fnfeed_2" class="footnote-ref">2</a></sup>', $readability->getContent()->getInnerHtml());
+        $this->assertStringContainsString('<a href="#fnref1:fnfeed_2" rev="footnote"', $readability->getContent()->getInnerHtml());
+    }
+
+    public function testWithWipedBody()
+    {
+        // from https://www.cs.cmu.edu/~rgs/alice-table.html
+        $html = file_get_contents('tests/fixtures/wipedBody.html');
+
+        $readability = $this->getReadability($html, 'http://0.0.0.0', 'libxml', false);
+        $res = $readability->init();
+
+        $this->assertTrue($res);
+        $this->assertStringContainsString('<a href="alice-I.html">Down the Rabbit-Hole</a>', $readability->getContent()->getInnerHtml());
+    }
+
+    // https://github.com/wallabag/wallabag/issues/8158
+    public function testCharsetAfterTitle()
+    {
+        $readability = $this->getReadability('<!DOCTYPE html><html lang="et"><head><title>Tõde ja õigus I</title> <meta charset="utf-8"></head><body><p>See oli läinud aastasaja kolmanda veerandi lõpul. Päike lähenes silmapiirile, seistes sedavõrd madalas, et enam ei ulatunud valgustama ei mäkke ronivat hobust, kes puutelgedega vankrit vedas, ei vankril istuvat noort naist ega ka ligi kolmekümnelist meest, kes kõndis vankri kõrval.</p></body></html>', 'https://et.wikisource.org/wiki/T%C3%B5de_ja_%C3%B5igus_I/I');
+        $readability->convertLinksToFootnotes = true;
+        $res = $readability->init();
+
+        $this->assertTrue($res);
+        $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
+        $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getTitle());
+        $this->assertSame('Tõde ja õigus I', $readability->getTitle()->getInnerHtml());
+        $this->assertStringContainsString('Päike lähenes', $readability->getContent()->getInnerHtml());
+    }
+
+    /**
+     * @return array<string, array{0: string, 1: string, 2?: bool}>
+     */
+    public function dataForHtmlLang()
+    {
+        return [
+            'meta' => [
+                '<html lang="fr"><head><meta charset="utf-8"></head><body><article>' . str_repeat('<p>Tous les êtres humains naissent libres et égaux en dignité et en droits. Ils sont doués de raison et de conscience et doivent agir les uns envers les autres dans un esprit de fraternité.</p>', 7) . '</article></body></html>',
+                'fr',
+            ],
+            'head' => [
+                '<html lang="fr"><head><title>Foo</title></head><body><article>' . str_repeat('<p>Tous les êtres humains naissent libres et égaux en dignité et en droits. Ils sont doués de raison et de conscience et doivent agir les uns envers les autres dans un esprit de fraternité.</p>', 7) . '</article></body></html>',
+                'fr',
+            ],
+            'headless' => [
+                '<html lang="fr"><body><article>' . str_repeat('<p>Tous les êtres humains naissent libres et égaux en dignité et en droits. Ils sont doués de raison et de conscience et doivent agir les uns envers les autres dans un esprit de fraternité.</p>', 7) . '</article></body></html>',
+                'fr',
+                // tidy would add <head> tag.
+                false,
+            ],
+            'fragment' => [
+                '<article>' . str_repeat('<p>Tous les êtres humains naissent libres et égaux en dignité et en droits. Ils sont doués de raison et de conscience et doivent agir les uns envers les autres dans un esprit de fraternité.</p>', 7) . '</article>',
+                '',
+                // tidy would add <html>.
+                false,
+            ],
+        ];
+    }
+
+    /**
+     * @dataProvider dataForHtmlLang
+     */
+    public function testHtmlLang($html, $lang, $useTidy = true)
+    {
+        $readability = $this->getReadability($html, 'http://0.0.0.0', 'libxml', $useTidy);
+        $res = $readability->init();
+
+        $this->assertTrue($res);
+        $this->assertInstanceOf(\DOMDocument::class, $readability->dom);
+        $this->assertSame($lang, $readability->dom->documentElement->getAttribute('lang'));
+        $this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
+        $this->assertStringContainsString('êtres', $readability->getContent()->getInnerHtml());
+    }
+
+    private function getReadability($html, $url = null, $parser = 'libxml', $useTidy = true)
+    {
+        $readability = new Readability($html, $url, $parser, $useTidy);
+
+        $this->logHandler = new TestHandler();
+        $this->logger = new Logger('test', [$this->logHandler]);
+        $readability->setLogger($this->logger);
+
+        return $readability;
+    }
 }

tests/fixtures/keepFootnotes.html

@@ -0,0 +1,54 @@
+<article>
+    
+    <h1>Feed-Aggregator und Sp&auml;ter-Lesen-Dienst im Team</h1>
+    
+        <figure>
+            <img src="https://www.schreibdichte.de/content/1-blog/20170505-feed-aggregator-und-spaeter-lesen-dienst-im-team/workflow.png" alt="Feed-Aggregator und Sp&auml;ter-Lesen-Dienst im Team" >
+        </figure>
+    
+    <time datetime="2017-05-05T18:40:00+00:00" >05.05.2017</time>
+    
+    <p> <span class="tag">Tags:</span>
+    <ul class="tag_list">
+                <li><a href="https://www.schreibdichte.de/blog/tag:Software">Software</a></li>
+                <li><a href="https://www.schreibdichte.de/blog/tag:Web">Web</a></li>
+                <li><a href="https://www.schreibdichte.de/blog/tag:Tools">Tools</a></li>
+        </ul>
+    <p>
+    
+    <div class="content">
+    <p>Dank einer Mitteilung <sup id="fnref1:fnfeed_1"><a href="#fn:fnfeed_1" class="footnote-ref">1</a></sup> im OSBN <sup id="fnref1:fnfeed_2"><a href="#fn:fnfeed_2" class="footnote-ref">2</a></sup>, bin ich auf den Feed-Aggregator Miniflux <sup id="fnref1:fnfeed_3"><a href="#fn:fnfeed_3" class="footnote-ref">3</a></sup> aufmerksam geworden. Ich hatte schon lange nach einer Alternative zu Fever <sup id="fnref1:fnfeed_4"><a href="#fn:fnfeed_4" class="footnote-ref">4</a></sup> gesucht, da der Anschein vorlag, dass die Entwicklung nicht mehr weiter ging. Was sich bestätigte.</p>
+    <p>Miniflux ist prima, einfach gehalten und erledigt genau dass, was es machen soll. Zudem wird die Fever-API unterstützt, was bedeutet, dass ich weiterhin meine Feed-Reader nutzen kann, was den Dialog mit Miniflux auf dem Server betrifft. Das ist deshalb interessant, um den Lesestatus oder das Favorisieren von Feeds zentral auf dem Server zu berücksichtigen und nicht lokal. So habe ich sowohl auf dem lokalen Rechner, als auch auf allen mobilen Geräten den gleichen Stand und Status meiner abonnierten Feeds.</p>
+    <p>Für das spätere Lesen von Webseiten, nutze ich seit längerem wallabag <sup id="fnref1:fnfeed_5"><a href="#fn:fnfeed_5" class="footnote-ref">5</a></sup>. Wallabag wird mit Inhalten über den Browser gefüttert. Die Webseiten werden bei der Konservierung von Werbung befreit, damit der reine Text vorliegt. Bilder dagegen nicht und gehen evtl. verloren, wenn es die Quelle mal nicht mehr geben sollte. Ich habe also zwei Orte, an denen Informationen gehalten werden. Miniflux zur Verwaltung von Feed-Nachrichten und Wallabag für Webseiten.</p>
+    <p>Bei einem Update von Miniflux ist mit aufgefallen, dass es nun eine API für Wallabag gibt. Dabei werden alle gespeicherten Feeds von Miniflux an Wallabag übergeben. Eine prima Angelegenheit, da ich jetzt nur noch einen Topf habe, woraus ich meine gesammelten Informationen aus dem Netz entnehme.</p>
+    <p>Miniflux als auch wallabag sind selbst gehostete Web-Applikationen, die auch über den Browser erreichbar sind. Native wallabag-Apps für iOS bzw. Android werden ebenfalls angeboten. Wallabag bietet zusätzlich einen Feed an, um die gesammelten Informationen per Feed-Reader zu lesen. Hierbei drängt sich evtl. die Idee auf, diesen Feed wieder in Miniflux zu abonnieren, da dann zentral alles aus verschiedenen Quellen vorliegt. Hier hätten wir allerdings eine gewisse Redundanz.</p>
+    <p>Ich nutze seit ein paar Monaten Devonthink <sup id="fnref1:fnfeed_6"><a href="#fn:fnfeed_6" class="footnote-ref">6</a></sup> auf dem Mac. Das ist eine lokale Dokumentenverwaltung (DMS), die heute u.a. meine Bücher, Notizen und mein Mail-Archiv verwaltet und ihre Stärke u.a. in der Suche von Informationen hat. Devonthink versteht es auch Feeds zu abonnieren. Für mich war dies der Moment, nun den Feed von wallabag mit all meinen gespeicherten Informationen aus dem Web mit zu integrieren. Ich muss sagen, eine runde Lösung, denn jetzt habe ich für die lokale Suche und das Lesen eine zentrale Stelle.</p>
+    <p>Die Grafik veranschaulicht das Teamplay zwischen Feed-Aggregator Miniflux und wallabag als Später-Lesen-Dienst, zusammengeführt in Devonthink. Ich kenne leider keine Dokumentenverwaltung für Linux oder Windows, die auch Feeds versteht. Wer etwas kennt, bitte melden. Wer zudem etwas zum Thema hören möchte, für dem ist ggf. die Podcast-Folge &quot;Der eigene Workflow&quot; <sup id="fnref1:fnfeed_7"><a href="#fn:fnfeed_7" class="footnote-ref">7</a></sup> interessant.</p>
+    <div class="footnotes">
+    <hr />
+    <ol>
+    <li id="fn:fnfeed_1">
+    <p>Artikel zu Miniflux: <a href="Link"><a href="https://www.robbinaer.info/index.php?post/78">https://www.robbinaer.info/index.php?post/78</a></a>&#160;<a href="#fnref1:fnfeed_1" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_2">
+    <p>OSBN: <a href="Link"><a href="https://osbn.de">https://osbn.de</a></a>&#160;<a href="#fnref1:fnfeed_2" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_3">
+    <p>Miniflux: <a href="Link"><a href="https://miniflux.net">https://miniflux.net</a></a>&#160;<a href="#fnref1:fnfeed_3" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_4">
+    <p>Fever: <a href="Link"><a href="https://feedafever.com">https://feedafever.com</a></a>&#160;<a href="#fnref1:fnfeed_4" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_5">
+    <p>wallabag: <a href="Link"><a href="https://wallabag.org/de">https://wallabag.org/de</a></a>&#160;<a href="#fnref1:fnfeed_5" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_6">
+    <p>Devonthink: <a href="Link"><a href="http://www.devontechnologies.com/de/produkte/devonthink/ueberblick.html">http://www.devontechnologies.com/de/produkte/devonthink/ueberblick.html</a></a>&#160;<a href="#fnref1:fnfeed_6" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    <li id="fn:fnfeed_7">
+    <p>Podcast MacMittwoch: <a href="Link"><a href="https://itunes.apple.com/de/podcast/macmittwoch/id1212750085?mt=2ueberblick.html">https://itunes.apple.com/de/podcast/macmittwoch/id1212750085?mt=2ueberblick.html</a></a>&#160;<a href="#fnref1:fnfeed_7" rev="footnote" class="footnote-backref">&#8617;</a></p>
+    </li>
+    </ol>
+    </div></div>
+    
+    </article>

tests/fixtures/wipedBody.html

@@ -0,0 +1,67 @@
+
+<HTML>
+<HEAD>
+<TITLE>Alice's Adventures in Wonderland (Project Gutenberg)</TITLE>
+</HEAD>
+
+<frameset Rows="50, *">
+<frame src="alice-finfo.html">
+<frame src="alice-ftitle.html" name="alice-main">
+</frameset>
+
+<noframes>
+<BODY>
+<H1>Alice's Adventures in Wonderland</H1>
+                          <H1>Lewis Carroll</H1>
+               <H1>The Millennium Fulcrum Edition 3.0</H1>
+
+NOTE:  This is a hypertext formatted version of the Project Gutenberg edition.
+For more information, check the
+<A HREF="alice-small.txt">small print</A>
+or check out the
+<A HREF="ftp://uiarchive.cso.uiuc.edu/pub/etext/gutenberg/etext91/alice30.txt">
+full ascii text</A>.  The original Tenniel illustrations are also available
+due to the efforts of Project Gutenberg.  You can if you like, grab them as a
+<A HREF="ftp://uiarchive.cso.uiuc.edu/pub/etext/gutenberg/etext94/algif10.zip">
+"zip file"</A> or read the <A HREF="algif-small.txt">small print</A>
+that comes with them.
+This document is part of a small, but growing collection of html formatted
+etexts.  (Others may be found in either my <A
+HREF="http://www.cs.cmu.edu/Web/People/rgs/rgs-home.html">home page</A> or
+John Ockerbloom's indexes by <A
+HREF="http://www.cs.cmu.edu/Web/bookauthors.html">author</A> and <A
+HREF="http://www.cs.cmu.edu/Web/booktitles.html">title</A>.)
+I am still trying to figure out whether anyone else is interested in these
+on-line readable documents.  If you appreciate this document or would like to
+see more such, send me mail at "rgs@cs.cmu.edu".
+<P>
+<A HREF="alice01a.gif"><IMG SRC="alice01th.gif"></A>
+<P>
+<H2>CONTENTS</H2>
+<PRE>
+    CHAPTER I:    <A HREF="alice-I.html">Down the Rabbit-Hole</A>
+    CHAPTER II:   <A HREF="alice-II.html">The Pool of Tears</A>
+    CHAPTER III:  <A HREF="alice-III.html">A Caucus-Race and a Long Tale</A>
+    CHAPTER IV:   <A HREF="alice-IV.html">The Rabbit Sends in a Little Bill</A>
+    CHAPTER V:    <A HREF="alice-V.html">Advice from a Caterpillar</A>
+    CHAPTER VI:   <A HREF="alice-VI.html">Pig and Pepper</A>
+    CHAPTER VII:  <A HREF="alice-VII.html">A Mad Tea-Party</A>
+    CHAPTER VIII: <A HREF="alice-VIII.html">The Queen's Croquet-Ground</A>
+    CHAPTER IX:   <A HREF="alice-IX.html">The Mock Turtle's Story</A>
+    CHAPTER X:    <A HREF="alice-X.html">The Lobster Quadrille</A>
+    CHAPTER XI:   <A HREF="alice-XI.html">Who Stole the Tarts?</A>
+    CHAPTER XII:  <A HREF="alice-XII.html">Alice's Evidence</A>
+</PRE>
+
+<ADDRESS><A HREF="mailto:rgs@cs.cmu.edu">Robert Stockton</A></ADDRESS>
+<P>
+<!- Access counter added 5/25 1:49am ->
+<A href="http://www.dbasics.com/cgi-bin/pages.cgi?143205747"><IMG SRC="http://www.dbasics.com/cgi-bin/counter.cgi?143205747.2&(none)"></A> Access statistics from htmlZine
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+</BODY>
+</noframes>
+</HTML>