ParserTest.php in Lockr 7.3

Namespace

Symfony\Component\Yaml\Tests

File

vendor/symfony/yaml/Tests/ParserTest.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[e-mail]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\Yaml\Tests;

use PHPUnit\Framework\TestCase;
use Symfony\Component\Yaml\Exception\ParseException;
use Symfony\Component\Yaml\Parser;
use Symfony\Component\Yaml\Tag\TaggedValue;
use Symfony\Component\Yaml\Yaml;
class ParserTest extends TestCase {

  /** @var Parser */
  protected $parser;
  protected function setUp() {
    $this->parser = new Parser();
  }
  protected function tearDown() {
    $this->parser = null;
    chmod(__DIR__ . '/Fixtures/not_readable.yml', 0644);
  }

  /**
   * @dataProvider getDataFormSpecifications
   */
  public function testSpecifications($expected, $yaml, $comment, $deprecated) {
    $deprecations = [];
    if ($deprecated) {
      set_error_handler(function ($type, $msg) use (&$deprecations) {
        if (E_USER_DEPRECATED !== $type) {
          restore_error_handler();
          if (class_exists('PHPUnit_Util_ErrorHandler')) {
            return \call_user_func_array('PHPUnit_Util_ErrorHandler::handleError', \func_get_args());
          }
          return \call_user_func_array('PHPUnit\\Util\\ErrorHandler::handleError', \func_get_args());
        }
        $deprecations[] = $msg;
      });
    }
    $this
      ->assertEquals($expected, var_export($this->parser
      ->parse($yaml), true), $comment);
    if ($deprecated) {
      restore_error_handler();
      $this
        ->assertCount(1, $deprecations);
      $this
        ->assertContains(true !== $deprecated ? $deprecated : 'Using the comma as a group separator for floats is deprecated since Symfony 3.2 and will be removed in 4.0 on line 1.', $deprecations[0]);
    }
  }
  public function getDataFormSpecifications() {
    return $this
      ->loadTestsFromFixtureFiles('index.yml');
  }

  /**
   * @group legacy
   * @expectedDeprecationMessage Using the Yaml::PARSE_KEYS_AS_STRINGS flag is deprecated since Symfony 3.4 as it will be removed in 4.0. Quote your keys when they are evaluable
   * @dataProvider getNonStringMappingKeysData
   */
  public function testNonStringMappingKeys($expected, $yaml, $comment) {
    $this
      ->assertSame($expected, var_export($this->parser
      ->parse($yaml, Yaml::PARSE_KEYS_AS_STRINGS), true), $comment);
  }
  public function getNonStringMappingKeysData() {
    return $this
      ->loadTestsFromFixtureFiles('nonStringKeys.yml');
  }

  /**
   * @group legacy
   * @dataProvider getLegacyNonStringMappingKeysData
   */
  public function testLegacyNonStringMappingKeys($expected, $yaml, $comment) {
    $this
      ->assertSame($expected, var_export($this->parser
      ->parse($yaml), true), $comment);
  }
  public function getLegacyNonStringMappingKeysData() {
    return $this
      ->loadTestsFromFixtureFiles('legacyNonStringKeys.yml');
  }
  public function testTabsInYaml() {

    // test tabs in YAML
    $yamls = [
      "foo:\n\tbar",
      "foo:\n \tbar",
      "foo:\n\t bar",
      "foo:\n \t bar",
    ];
    foreach ($yamls as $yaml) {
      try {
        $content = $this->parser
          ->parse($yaml);
        $this
          ->fail('YAML files must not contain tabs');
      } catch (\Exception $e) {
        $this
          ->assertInstanceOf('\\Exception', $e, 'YAML files must not contain tabs');
        $this
          ->assertEquals('A YAML file cannot contain tabs as indentation at line 2 (near "' . strpbrk($yaml, "\t") . '").', $e
          ->getMessage(), 'YAML files must not contain tabs');
      }
    }
  }
  public function testEndOfTheDocumentMarker() {
    $yaml = <<<'EOF'
--- %YAML:1.0
foo
...
EOF;
    $this
      ->assertEquals('foo', $this->parser
      ->parse($yaml));
  }
  public function getBlockChompingTests() {
    $tests = [];
    $yaml = <<<'EOF'
foo: |-
    one
    two
bar: |-
    one
    two

EOF;
    $expected = [
      'foo' => "one\ntwo",
      'bar' => "one\ntwo",
    ];
    $tests['Literal block chomping strip with single trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: |-
    one
    two

bar: |-
    one
    two


EOF;
    $expected = [
      'foo' => "one\ntwo",
      'bar' => "one\ntwo",
    ];
    $tests['Literal block chomping strip with multiple trailing newlines'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
{}


EOF;
    $expected = [];
    $tests['Literal block chomping strip with multiple trailing newlines after a 1-liner'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: |-
    one
    two
bar: |-
    one
    two
EOF;
    $expected = [
      'foo' => "one\ntwo",
      'bar' => "one\ntwo",
    ];
    $tests['Literal block chomping strip without trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: |
    one
    two
bar: |
    one
    two

EOF;
    $expected = [
      'foo' => "one\ntwo\n",
      'bar' => "one\ntwo\n",
    ];
    $tests['Literal block chomping clip with single trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: |
    one
    two

bar: |
    one
    two


EOF;
    $expected = [
      'foo' => "one\ntwo\n",
      'bar' => "one\ntwo\n",
    ];
    $tests['Literal block chomping clip with multiple trailing newlines'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo:
- bar: |
    one

    two
EOF;
    $expected = [
      'foo' => [
        [
          'bar' => "one\n\ntwo",
        ],
      ],
    ];
    $tests['Literal block chomping clip with embedded blank line inside unindented collection'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: |
    one
    two
bar: |
    one
    two
EOF;
    $expected = [
      'foo' => "one\ntwo\n",
      'bar' => "one\ntwo",
    ];
    $tests['Literal block chomping clip without trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: |+
    one
    two
bar: |+
    one
    two

EOF;
    $expected = [
      'foo' => "one\ntwo\n",
      'bar' => "one\ntwo\n",
    ];
    $tests['Literal block chomping keep with single trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: |+
    one
    two

bar: |+
    one
    two


EOF;
    $expected = [
      'foo' => "one\ntwo\n\n",
      'bar' => "one\ntwo\n\n",
    ];
    $tests['Literal block chomping keep with multiple trailing newlines'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: |+
    one
    two
bar: |+
    one
    two
EOF;
    $expected = [
      'foo' => "one\ntwo\n",
      'bar' => "one\ntwo",
    ];
    $tests['Literal block chomping keep without trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: >-
    one
    two
bar: >-
    one
    two

EOF;
    $expected = [
      'foo' => 'one two',
      'bar' => 'one two',
    ];
    $tests['Folded block chomping strip with single trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: >-
    one
    two

bar: >-
    one
    two


EOF;
    $expected = [
      'foo' => 'one two',
      'bar' => 'one two',
    ];
    $tests['Folded block chomping strip with multiple trailing newlines'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: >-
    one
    two
bar: >-
    one
    two
EOF;
    $expected = [
      'foo' => 'one two',
      'bar' => 'one two',
    ];
    $tests['Folded block chomping strip without trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: >
    one
    two
bar: >
    one
    two

EOF;
    $expected = [
      'foo' => "one two\n",
      'bar' => "one two\n",
    ];
    $tests['Folded block chomping clip with single trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: >
    one
    two

bar: >
    one
    two


EOF;
    $expected = [
      'foo' => "one two\n",
      'bar' => "one two\n",
    ];
    $tests['Folded block chomping clip with multiple trailing newlines'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: >
    one
    two
bar: >
    one
    two
EOF;
    $expected = [
      'foo' => "one two\n",
      'bar' => 'one two',
    ];
    $tests['Folded block chomping clip without trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: >+
    one
    two
bar: >+
    one
    two

EOF;
    $expected = [
      'foo' => "one two\n",
      'bar' => "one two\n",
    ];
    $tests['Folded block chomping keep with single trailing newline'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: >+
    one
    two

bar: >+
    one
    two


EOF;
    $expected = [
      'foo' => "one two\n\n",
      'bar' => "one two\n\n",
    ];
    $tests['Folded block chomping keep with multiple trailing newlines'] = [
      $expected,
      $yaml,
    ];
    $yaml = <<<'EOF'
foo: >+
    one
    two
bar: >+
    one
    two
EOF;
    $expected = [
      'foo' => "one two\n",
      'bar' => 'one two',
    ];
    $tests['Folded block chomping keep without trailing newline'] = [
      $expected,
      $yaml,
    ];
    return $tests;
  }

  /**
   * @dataProvider getBlockChompingTests
   */
  public function testBlockChomping($expected, $yaml) {
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }

  /**
   * Regression test for issue #7989.
   *
   * @see https://github.com/symfony/symfony/issues/7989
   */
  public function testBlockLiteralWithLeadingNewlines() {
    $yaml = <<<'EOF'
foo: |-


    bar

EOF;
    $expected = [
      'foo' => "\n\nbar",
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }
  public function testObjectSupportEnabled() {
    $input = <<<'EOF'
foo: !php/object O:30:"Symfony\Component\Yaml\Tests\B":1:{s:1:"b";s:3:"foo";}
bar: 1
EOF;
    $this
      ->assertEquals([
      'foo' => new B(),
      'bar' => 1,
    ], $this->parser
      ->parse($input, Yaml::PARSE_OBJECT), '->parse() is able to parse objects');
  }

  /**
   * @group legacy
   */
  public function testObjectSupportEnabledPassingTrue() {
    $input = <<<'EOF'
foo: !php/object:O:30:"Symfony\Component\Yaml\Tests\B":1:{s:1:"b";s:3:"foo";}
bar: 1
EOF;
    $this
      ->assertEquals([
      'foo' => new B(),
      'bar' => 1,
    ], $this->parser
      ->parse($input, false, true), '->parse() is able to parse objects');
  }

  /**
   * @group legacy
   * @dataProvider deprecatedObjectValueProvider
   */
  public function testObjectSupportEnabledWithDeprecatedTag($yaml) {
    $this
      ->assertEquals([
      'foo' => new B(),
      'bar' => 1,
    ], $this->parser
      ->parse($yaml, Yaml::PARSE_OBJECT), '->parse() is able to parse objects');
  }
  public function deprecatedObjectValueProvider() {
    return [
      [
        <<<YAML
foo: !!php/object:O:30:"Symfony\\Component\\Yaml\\Tests\\B":1:{s:1:"b";s:3:"foo";}
bar: 1
YAML
,
      ],
      [
        <<<YAML
foo: !php/object:O:30:"Symfony\\Component\\Yaml\\Tests\\B":1:{s:1:"b";s:3:"foo";}
bar: 1
YAML
,
      ],
    ];
  }

  /**
   * @dataProvider invalidDumpedObjectProvider
   */
  public function testObjectSupportDisabledButNoExceptions($input) {
    $this
      ->assertEquals([
      'foo' => null,
      'bar' => 1,
    ], $this->parser
      ->parse($input), '->parse() does not parse objects');
  }

  /**
   * @dataProvider getObjectForMapTests
   */
  public function testObjectForMap($yaml, $expected) {
    $flags = Yaml::PARSE_OBJECT_FOR_MAP;
    $this
      ->assertEquals($expected, $this->parser
      ->parse($yaml, $flags));
  }

  /**
   * @group legacy
   * @dataProvider getObjectForMapTests
   */
  public function testObjectForMapEnabledWithMappingUsingBooleanToggles($yaml, $expected) {
    $this
      ->assertEquals($expected, $this->parser
      ->parse($yaml, false, false, true));
  }
  public function getObjectForMapTests() {
    $tests = [];
    $yaml = <<<'EOF'
foo:
    fiz: [cat]
EOF;
    $expected = new \stdClass();
    $expected->foo = new \stdClass();
    $expected->foo->fiz = [
      'cat',
    ];
    $tests['mapping'] = [
      $yaml,
      $expected,
    ];
    $yaml = '{ "foo": "bar", "fiz": "cat" }';
    $expected = new \stdClass();
    $expected->foo = 'bar';
    $expected->fiz = 'cat';
    $tests['inline-mapping'] = [
      $yaml,
      $expected,
    ];
    $yaml = "foo: bar\nbaz: foobar";
    $expected = new \stdClass();
    $expected->foo = 'bar';
    $expected->baz = 'foobar';
    $tests['object-for-map-is-applied-after-parsing'] = [
      $yaml,
      $expected,
    ];
    $yaml = <<<'EOT'
array:
  - key: one
  - key: two
EOT;
    $expected = new \stdClass();
    $expected->array = [];
    $expected->array[0] = new \stdClass();
    $expected->array[0]->key = 'one';
    $expected->array[1] = new \stdClass();
    $expected->array[1]->key = 'two';
    $tests['nest-map-and-sequence'] = [
      $yaml,
      $expected,
    ];
    $yaml = <<<'YAML'
map:
  1: one
  2: two
YAML;
    $expected = new \stdClass();
    $expected->map = new \stdClass();
    $expected->map->{1} = 'one';
    $expected->map->{2} = 'two';
    $tests['numeric-keys'] = [
      $yaml,
      $expected,
    ];
    $yaml = <<<'YAML'
map:
  '0': one
  '1': two
YAML;
    $expected = new \stdClass();
    $expected->map = new \stdClass();
    $expected->map->{0} = 'one';
    $expected->map->{1} = 'two';
    $tests['zero-indexed-numeric-keys'] = [
      $yaml,
      $expected,
    ];
    return $tests;
  }

  /**
   * @dataProvider invalidDumpedObjectProvider
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   */
  public function testObjectsSupportDisabledWithExceptions($yaml) {
    $this->parser
      ->parse($yaml, Yaml::PARSE_EXCEPTION_ON_INVALID_TYPE);
  }
  public function testCanParseContentWithTrailingSpaces() {
    $yaml = "items:  \n  foo: bar";
    $expected = [
      'items' => [
        'foo' => 'bar',
      ],
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }

  /**
   * @group legacy
   * @dataProvider invalidDumpedObjectProvider
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   */
  public function testObjectsSupportDisabledWithExceptionsUsingBooleanToggles($yaml) {
    $this->parser
      ->parse($yaml, true);
  }
  public function invalidDumpedObjectProvider() {
    $yamlTag = <<<'EOF'
foo: !!php/object:O:30:"Symfony\Tests\Component\Yaml\B":1:{s:1:"b";s:3:"foo";}
bar: 1
EOF;
    $localTag = <<<'EOF'
foo: !php/object:O:30:"Symfony\Tests\Component\Yaml\B":1:{s:1:"b";s:3:"foo";}
bar: 1
EOF;
    return [
      'yaml-tag' => [
        $yamlTag,
      ],
      'local-tag' => [
        $localTag,
      ],
    ];
  }

  /**
   * @requires extension iconv
   */
  public function testNonUtf8Exception() {
    $yamls = [
      iconv('UTF-8', 'ISO-8859-1', "foo: 'äöüß'"),
      iconv('UTF-8', 'ISO-8859-15', "euro: '€'"),
      iconv('UTF-8', 'CP1252', "cp1252: '©ÉÇáñ'"),
    ];
    foreach ($yamls as $yaml) {
      try {
        $this->parser
          ->parse($yaml);
        $this
          ->fail('charsets other than UTF-8 are rejected.');
      } catch (\Exception $e) {
        $this
          ->assertInstanceOf('Symfony\\Component\\Yaml\\Exception\\ParseException', $e, 'charsets other than UTF-8 are rejected.');
      }
    }
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   */
  public function testUnindentedCollectionException() {
    $yaml = <<<'EOF'

collection:
-item1
-item2
-item3

EOF;
    $this->parser
      ->parse($yaml);
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   */
  public function testShortcutKeyUnindentedCollectionException() {
    $yaml = <<<'EOF'

collection:
-  key: foo
  foo: bar

EOF;
    $this->parser
      ->parse($yaml);
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessageRegExp /^Multiple documents are not supported.+/
   */
  public function testMultipleDocumentsNotSupportedException() {
    Yaml::parse(<<<'EOL'
# Ranking of 1998 home runs
---
- Mark McGwire
- Sammy Sosa
- Ken Griffey

# Team ranking
---
- Chicago Cubs
- St Louis Cardinals
EOL
);
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   */
  public function testSequenceInAMapping() {
    Yaml::parse(<<<'EOF'
yaml:
  hash: me
  - array stuff
EOF
);
  }
  public function testSequenceInMappingStartedBySingleDashLine() {
    $yaml = <<<'EOT'
a:
-
  b:
  -
    bar: baz
- foo
d: e
EOT;
    $expected = [
      'a' => [
        [
          'b' => [
            [
              'bar' => 'baz',
            ],
          ],
        ],
        'foo',
      ],
      'd' => 'e',
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }
  public function testSequenceFollowedByCommentEmbeddedInMapping() {
    $yaml = <<<'EOT'
a:
    b:
        - c
# comment
    d: e
EOT;
    $expected = [
      'a' => [
        'b' => [
          'c',
        ],
        'd' => 'e',
      ],
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }
  public function testNonStringFollowedByCommentEmbeddedInMapping() {
    $yaml = <<<'EOT'
a:
    b:
        {}
# comment
    d:
        1.1
# another comment
EOT;
    $expected = [
      'a' => [
        'b' => [],
        'd' => 1.1,
      ],
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }
  public function getParseExceptionNotAffectedMultiLineStringLastResortParsing() {
    $tests = [];
    $yaml = <<<'EOT'
a
    b:
EOT;
    $tests['parse error on first line'] = [
      $yaml,
    ];
    $yaml = <<<'EOT'
a

b
    c:
EOT;
    $tests['parse error due to inconsistent indentation'] = [
      $yaml,
    ];
    $yaml = <<<'EOT'
 &  *  !  |  >  '  "  %  @  ` #, { asd a;sdasd }-@^qw3
EOT;
    $tests['symfony/symfony/issues/22967#issuecomment-322067742'] = [
      $yaml,
    ];
    return $tests;
  }

  /**
   * @dataProvider getParseExceptionNotAffectedMultiLineStringLastResortParsing
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   */
  public function testParseExceptionNotAffectedByMultiLineStringLastResortParsing($yaml) {
    $this->parser
      ->parse($yaml);
  }
  public function testMultiLineStringLastResortParsing() {
    $yaml = <<<'EOT'
test:
  You can have things that don't look like strings here
  true
  yes you can
EOT;
    $expected = [
      'test' => 'You can have things that don\'t look like strings here true yes you can',
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
    $yaml = <<<'EOT'
a:
    b
       c
EOT;
    $expected = [
      'a' => 'b c',
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   */
  public function testMappingInASequence() {
    Yaml::parse(<<<'EOF'
yaml:
  - array stuff
  hash: me
EOF
);
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessage missing colon
   */
  public function testScalarInSequence() {
    Yaml::parse(<<<'EOF'
foo:
    - bar
"missing colon"
    foo: bar
EOF
);
  }

  /**
   * > It is an error for two equal keys to appear in the same mapping node.
   * > In such a case the YAML processor may continue, ignoring the second
   * > `key: value` pair and issuing an appropriate warning. This strategy
   * > preserves a consistent information model for one-pass and random access
   * > applications.
   *
   * @see http://yaml.org/spec/1.2/spec.html#id2759572
   * @see http://yaml.org/spec/1.1/#id932806
   * @group legacy
   */
  public function testMappingDuplicateKeyBlock() {
    $input = <<<'EOD'
parent:
    child: first
    child: duplicate
parent:
    child: duplicate
    child: duplicate
EOD;
    $expected = [
      'parent' => [
        'child' => 'first',
      ],
    ];
    $this
      ->assertSame($expected, Yaml::parse($input));
  }

  /**
   * @group legacy
   */
  public function testMappingDuplicateKeyFlow() {
    $input = <<<'EOD'
parent: { child: first, child: duplicate }
parent: { child: duplicate, child: duplicate }
EOD;
    $expected = [
      'parent' => [
        'child' => 'first',
      ],
    ];
    $this
      ->assertSame($expected, Yaml::parse($input));
  }

  /**
   * @group legacy
   * @dataProvider getParseExceptionOnDuplicateData
   * @expectedDeprecation Duplicate key "%s" detected whilst parsing YAML. Silent handling of duplicate mapping keys in YAML is deprecated %s and will throw \Symfony\Component\Yaml\Exception\ParseException in 4.0 on line %d.
   * throws \Symfony\Component\Yaml\Exception\ParseException in 4.0
   */
  public function testParseExceptionOnDuplicate($input, $duplicateKey, $lineNumber) {
    Yaml::parse($input);
  }
  public function getParseExceptionOnDuplicateData() {
    $tests = [];
    $yaml = <<<EOD
parent: { child: first, child: duplicate }
EOD;
    $tests[] = [
      $yaml,
      'child',
      1,
    ];
    $yaml = <<<EOD
parent:
  child: first,
  child: duplicate
EOD;
    $tests[] = [
      $yaml,
      'child',
      3,
    ];
    $yaml = <<<EOD
parent: { child: foo }
parent: { child: bar }
EOD;
    $tests[] = [
      $yaml,
      'parent',
      2,
    ];
    $yaml = <<<EOD
parent: { child_mapping: { value: bar},  child_mapping: { value: bar} }
EOD;
    $tests[] = [
      $yaml,
      'child_mapping',
      1,
    ];
    $yaml = <<<EOD
parent:
  child_mapping:
    value: bar
  child_mapping:
    value: bar
EOD;
    $tests[] = [
      $yaml,
      'child_mapping',
      4,
    ];
    $yaml = <<<EOD
parent: { child_sequence: ['key1', 'key2', 'key3'],  child_sequence: ['key1', 'key2', 'key3'] }
EOD;
    $tests[] = [
      $yaml,
      'child_sequence',
      1,
    ];
    $yaml = <<<EOD
parent:
  child_sequence:
    - key1
    - key2
    - key3
  child_sequence:
    - key1
    - key2
    - key3
EOD;
    $tests[] = [
      $yaml,
      'child_sequence',
      6,
    ];
    return $tests;
  }
  public function testEmptyValue() {
    $input = <<<'EOF'
hash:
EOF;
    $this
      ->assertEquals([
      'hash' => null,
    ], Yaml::parse($input));
  }
  public function testCommentAtTheRootIndent() {
    $this
      ->assertEquals([
      'services' => [
        'app.foo_service' => [
          'class' => 'Foo',
        ],
        'app/bar_service' => [
          'class' => 'Bar',
        ],
      ],
    ], Yaml::parse(<<<'EOF'
# comment 1
services:
# comment 2
    # comment 3
    app.foo_service:
        class: Foo
# comment 4
    # comment 5
    app/bar_service:
        class: Bar
EOF
));
  }
  public function testStringBlockWithComments() {
    $this
      ->assertEquals([
      'content' => <<<'EOT'
# comment 1
header

    # comment 2
    <body>
        <h1>title</h1>
    </body>

footer # comment3
EOT
,
    ], Yaml::parse(<<<'EOF'
content: |
    # comment 1
    header

        # comment 2
        <body>
            <h1>title</h1>
        </body>

    footer # comment3
EOF
));
  }
  public function testFoldedStringBlockWithComments() {
    $this
      ->assertEquals([
      [
        'content' => <<<'EOT'
# comment 1
header

    # comment 2
    <body>
        <h1>title</h1>
    </body>

footer # comment3
EOT
,
      ],
    ], Yaml::parse(<<<'EOF'
-
    content: |
        # comment 1
        header

            # comment 2
            <body>
                <h1>title</h1>
            </body>

        footer # comment3
EOF
));
  }
  public function testNestedFoldedStringBlockWithComments() {
    $this
      ->assertEquals([
      [
        'title' => 'some title',
        'content' => <<<'EOT'
# comment 1
header

    # comment 2
    <body>
        <h1>title</h1>
    </body>

footer # comment3
EOT
,
      ],
    ], Yaml::parse(<<<'EOF'
-
    title: some title
    content: |
        # comment 1
        header

            # comment 2
            <body>
                <h1>title</h1>
            </body>

        footer # comment3
EOF
));
  }
  public function testReferenceResolvingInInlineStrings() {
    $this
      ->assertEquals([
      'var' => 'var-value',
      'scalar' => 'var-value',
      'list' => [
        'var-value',
      ],
      'list_in_list' => [
        [
          'var-value',
        ],
      ],
      'map_in_list' => [
        [
          'key' => 'var-value',
        ],
      ],
      'embedded_mapping' => [
        [
          'key' => 'var-value',
        ],
      ],
      'map' => [
        'key' => 'var-value',
      ],
      'list_in_map' => [
        'key' => [
          'var-value',
        ],
      ],
      'map_in_map' => [
        'foo' => [
          'bar' => 'var-value',
        ],
      ],
    ], Yaml::parse(<<<'EOF'
var:  &var var-value
scalar: *var
list: [ *var ]
list_in_list: [[ *var ]]
map_in_list: [ { key: *var } ]
embedded_mapping: [ key: *var ]
map: { key: *var }
list_in_map: { key: [*var] }
map_in_map: { foo: { bar: *var } }
EOF
));
  }
  public function testYamlDirective() {
    $yaml = <<<'EOF'
%YAML 1.2
---
foo: 1
bar: 2
EOF;
    $this
      ->assertEquals([
      'foo' => 1,
      'bar' => 2,
    ], $this->parser
      ->parse($yaml));
  }

  /**
   * @group legacy
   * @expectedDeprecation Implicit casting of numeric key to string is deprecated since Symfony 3.3 and will throw \Symfony\Component\Yaml\Exception\ParseException in 4.0. Quote your evaluable mapping keys instead on line 2.
   */
  public function testFloatKeys() {
    $yaml = <<<'EOF'
foo:
    1.2: "bar"
    1.3: "baz"
EOF;
    $expected = [
      'foo' => [
        '1.2' => 'bar',
        '1.3' => 'baz',
      ],
    ];
    $this
      ->assertEquals($expected, $this->parser
      ->parse($yaml));
  }

  /**
   * @group legacy
   * @expectedDeprecation Implicit casting of non-string key to string is deprecated since Symfony 3.3 and will throw \Symfony\Component\Yaml\Exception\ParseException in 4.0. Quote your evaluable mapping keys instead on line 1.
   */
  public function testBooleanKeys() {
    $yaml = <<<'EOF'
true: foo
false: bar
EOF;
    $expected = [
      1 => 'foo',
      0 => 'bar',
    ];
    $this
      ->assertEquals($expected, $this->parser
      ->parse($yaml));
  }
  public function testExplicitStringCasting() {
    $yaml = <<<'EOF'
'1.2': "bar"
!!str 1.3: "baz"

'true': foo
!!str false: bar

!!str null: 'null'
'~': 'null'
EOF;
    $expected = [
      '1.2' => 'bar',
      '1.3' => 'baz',
      'true' => 'foo',
      'false' => 'bar',
      'null' => 'null',
      '~' => 'null',
    ];
    $this
      ->assertEquals($expected, $this->parser
      ->parse($yaml));
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessage A colon cannot be used in an unquoted mapping value
   */
  public function testColonInMappingValueException() {
    $yaml = <<<'EOF'
foo: bar: baz
EOF;
    $this->parser
      ->parse($yaml);
  }
  public function testColonInMappingValueExceptionNotTriggeredByColonInComment() {
    $yaml = <<<'EOT'
foo:
    bar: foobar # Note: a comment after a colon
EOT;
    $this
      ->assertSame([
      'foo' => [
        'bar' => 'foobar',
      ],
    ], $this->parser
      ->parse($yaml));
  }

  /**
   * @dataProvider getCommentLikeStringInScalarBlockData
   */
  public function testCommentLikeStringsAreNotStrippedInBlockScalars($yaml, $expectedParserResult) {
    $this
      ->assertSame($expectedParserResult, $this->parser
      ->parse($yaml));
  }
  public function getCommentLikeStringInScalarBlockData() {
    $tests = [];
    $yaml = <<<'EOT'
pages:
    -
        title: some title
        content: |
            # comment 1
            header

                # comment 2
                <body>
                    <h1>title</h1>
                </body>

            footer # comment3
EOT;
    $expected = [
      'pages' => [
        [
          'title' => 'some title',
          'content' => <<<'EOT'
# comment 1
header

    # comment 2
    <body>
        <h1>title</h1>
    </body>

footer # comment3
EOT
,
        ],
      ],
    ];
    $tests[] = [
      $yaml,
      $expected,
    ];
    $yaml = <<<'EOT'
test: |
    foo
    # bar
    baz
collection:
    - one: |
        foo
        # bar
        baz
    - two: |
        foo
        # bar
        baz
EOT;
    $expected = [
      'test' => <<<'EOT'
foo
# bar
baz

EOT
,
      'collection' => [
        [
          'one' => <<<'EOT'
foo
# bar
baz

EOT
,
        ],
        [
          'two' => <<<'EOT'
foo
# bar
baz
EOT
,
        ],
      ],
    ];
    $tests[] = [
      $yaml,
      $expected,
    ];
    $yaml = <<<'EOT'
foo:
  bar:
    scalar-block: >
      line1
      line2>
  baz:
# comment
    foobar: ~
EOT;
    $expected = [
      'foo' => [
        'bar' => [
          'scalar-block' => "line1 line2>\n",
        ],
        'baz' => [
          'foobar' => null,
        ],
      ],
    ];
    $tests[] = [
      $yaml,
      $expected,
    ];
    $yaml = <<<'EOT'
a:
    b: hello
#    c: |
#        first row
#        second row
    d: hello
EOT;
    $expected = [
      'a' => [
        'b' => 'hello',
        'd' => 'hello',
      ],
    ];
    $tests[] = [
      $yaml,
      $expected,
    ];
    return $tests;
  }
  public function testBlankLinesAreParsedAsNewLinesInFoldedBlocks() {
    $yaml = <<<'EOT'
test: >
    <h2>A heading</h2>

    <ul>
    <li>a list</li>
    <li>may be a good example</li>
    </ul>
EOT;
    $this
      ->assertSame([
      'test' => <<<'EOT'
<h2>A heading</h2>
<ul> <li>a list</li> <li>may be a good example</li> </ul>
EOT
,
    ], $this->parser
      ->parse($yaml));
  }
  public function testAdditionallyIndentedLinesAreParsedAsNewLinesInFoldedBlocks() {
    $yaml = <<<'EOT'
test: >
    <h2>A heading</h2>

    <ul>
      <li>a list</li>
      <li>may be a good example</li>
    </ul>
EOT;
    $this
      ->assertSame([
      'test' => <<<'EOT'
<h2>A heading</h2>
<ul>
  <li>a list</li>
  <li>may be a good example</li>
</ul>
EOT
,
    ], $this->parser
      ->parse($yaml));
  }

  /**
   * @dataProvider getBinaryData
   */
  public function testParseBinaryData($data) {
    $this
      ->assertSame([
      'data' => 'Hello world',
    ], $this->parser
      ->parse($data));
  }
  public function getBinaryData() {
    return [
      'enclosed with double quotes' => [
        'data: !!binary "SGVsbG8gd29ybGQ="',
      ],
      'enclosed with single quotes' => [
        "data: !!binary 'SGVsbG8gd29ybGQ='",
      ],
      'containing spaces' => [
        'data: !!binary  "SGVs bG8gd 29ybGQ="',
      ],
      'in block scalar' => [
        <<<'EOT'
data: !!binary |
    SGVsbG8gd29ybGQ=
EOT
,
      ],
      'containing spaces in block scalar' => [
        <<<'EOT'
data: !!binary |
    SGVs bG8gd 29ybGQ=
EOT
,
      ],
    ];
  }

  /**
   * @dataProvider getInvalidBinaryData
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   */
  public function testParseInvalidBinaryData($data, $expectedMessage) {
    if (method_exists($this, 'expectException')) {
      $this
        ->expectExceptionMessageRegExp($expectedMessage);
    }
    else {
      $this
        ->setExpectedExceptionRegExp(ParseException::class, $expectedMessage);
    }
    $this->parser
      ->parse($data);
  }
  public function getInvalidBinaryData() {
    return [
      'length not a multiple of four' => [
        'data: !!binary "SGVsbG8d29ybGQ="',
        '/The normalized base64 encoded data \\(data without whitespace characters\\) length must be a multiple of four \\(\\d+ bytes given\\)/',
      ],
      'invalid characters' => [
        '!!binary "SGVsbG8#d29ybGQ="',
        '/The base64 encoded data \\(.*\\) contains invalid characters/',
      ],
      'too many equals characters' => [
        'data: !!binary "SGVsbG8gd29yb==="',
        '/The base64 encoded data \\(.*\\) contains invalid characters/',
      ],
      'misplaced equals character' => [
        'data: !!binary "SGVsbG8gd29ybG=Q"',
        '/The base64 encoded data \\(.*\\) contains invalid characters/',
      ],
      'length not a multiple of four in block scalar' => [
        <<<'EOT'
data: !!binary |
    SGVsbG8d29ybGQ=
EOT
,
        '/The normalized base64 encoded data \\(data without whitespace characters\\) length must be a multiple of four \\(\\d+ bytes given\\)/',
      ],
      'invalid characters in block scalar' => [
        <<<'EOT'
data: !!binary |
    SGVsbG8#d29ybGQ=
EOT
,
        '/The base64 encoded data \\(.*\\) contains invalid characters/',
      ],
      'too many equals characters in block scalar' => [
        <<<'EOT'
data: !!binary |
    SGVsbG8gd29yb===
EOT
,
        '/The base64 encoded data \\(.*\\) contains invalid characters/',
      ],
      'misplaced equals character in block scalar' => [
        <<<'EOT'
data: !!binary |
    SGVsbG8gd29ybG=Q
EOT
,
        '/The base64 encoded data \\(.*\\) contains invalid characters/',
      ],
    ];
  }
  public function testParseDateAsMappingValue() {
    $yaml = <<<'EOT'
date: 2002-12-14
EOT;
    $expectedDate = new \DateTime();
    $expectedDate
      ->setTimeZone(new \DateTimeZone('UTC'));
    $expectedDate
      ->setDate(2002, 12, 14);
    $expectedDate
      ->setTime(0, 0, 0);
    $this
      ->assertEquals([
      'date' => $expectedDate,
    ], $this->parser
      ->parse($yaml, Yaml::PARSE_DATETIME));
  }

  /**
   * @param $lineNumber
   * @param $yaml
   * @dataProvider parserThrowsExceptionWithCorrectLineNumberProvider
   */
  public function testParserThrowsExceptionWithCorrectLineNumber($lineNumber, $yaml) {
    if (method_exists($this, 'expectException')) {
      $this
        ->expectException('\\Symfony\\Component\\Yaml\\Exception\\ParseException');
      $this
        ->expectExceptionMessage(sprintf('Unexpected characters near "," at line %d (near "bar: "123",").', $lineNumber));
    }
    else {
      $this
        ->setExpectedException('\\Symfony\\Component\\Yaml\\Exception\\ParseException', sprintf('Unexpected characters near "," at line %d (near "bar: "123",").', $lineNumber));
    }
    $this->parser
      ->parse($yaml);
  }
  public function parserThrowsExceptionWithCorrectLineNumberProvider() {
    return [
      [
        4,
        <<<'YAML'
foo:
    -
        # bar
        bar: "123",
YAML
,
      ],
      [
        5,
        <<<'YAML'
foo:
    -
        # bar
        # bar
        bar: "123",
YAML
,
      ],
      [
        8,
        <<<'YAML'
foo:
    -
        # foobar
        baz: 123
bar:
    -
        # bar
        bar: "123",
YAML
,
      ],
      [
        10,
        <<<'YAML'
foo:
    -
        # foobar
        # foobar
        baz: 123
bar:
    -
        # bar
        # bar
        bar: "123",
YAML
,
      ],
    ];
  }
  public function testParseMultiLineQuotedString() {
    $yaml = <<<EOT
foo: "bar
  baz
   foobar
foo"
bar: baz
EOT;
    $this
      ->assertSame([
      'foo' => 'bar baz foobar foo',
      'bar' => 'baz',
    ], $this->parser
      ->parse($yaml));
  }
  public function testMultiLineQuotedStringWithTrailingBackslash() {
    $yaml = <<<YAML
foobar:
    "foo\\
    bar"
YAML;
    $this
      ->assertSame([
      'foobar' => 'foobar',
    ], $this->parser
      ->parse($yaml));
  }
  public function testCommentCharactersInMultiLineQuotedStrings() {
    $yaml = <<<YAML
foo:
    foobar: 'foo
      #bar'
    bar: baz
YAML;
    $expected = [
      'foo' => [
        'foobar' => 'foo #bar',
        'bar' => 'baz',
      ],
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }
  public function testBlankLinesInQuotedMultiLineString() {
    $yaml = <<<YAML
foobar: 'foo

    bar'
YAML;
    $expected = [
      'foobar' => "foo\nbar",
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }
  public function testParseMultiLineUnquotedString() {
    $yaml = <<<EOT
foo: bar
  baz
   foobar
  foo
bar: baz
EOT;
    $this
      ->assertSame([
      'foo' => 'bar baz foobar foo',
      'bar' => 'baz',
    ], $this->parser
      ->parse($yaml));
  }
  public function testParseMultiLineString() {
    $this
      ->assertEquals("foo bar\nbaz", $this->parser
      ->parse("foo\nbar\n\nbaz"));
  }

  /**
   * @dataProvider multiLineDataProvider
   */
  public function testParseMultiLineMappingValue($yaml, $expected, $parseError) {
    $this
      ->assertEquals($expected, $this->parser
      ->parse($yaml));
  }
  public function multiLineDataProvider() {
    $tests = [];
    $yaml = <<<'EOF'
foo:
- bar:
    one

    two
    three
EOF;
    $expected = [
      'foo' => [
        [
          'bar' => "one\ntwo three",
        ],
      ],
    ];
    $tests[] = [
      $yaml,
      $expected,
      false,
    ];
    $yaml = <<<'EOF'
bar
"foo"
EOF;
    $expected = 'bar "foo"';
    $tests[] = [
      $yaml,
      $expected,
      false,
    ];
    $yaml = <<<'EOF'
bar
"foo
EOF;
    $expected = 'bar "foo';
    $tests[] = [
      $yaml,
      $expected,
      false,
    ];
    $yaml = <<<'EOF'
bar

'foo'
EOF;
    $expected = "bar\n'foo'";
    $tests[] = [
      $yaml,
      $expected,
      false,
    ];
    $yaml = <<<'EOF'
bar

foo'
EOF;
    $expected = "bar\nfoo'";
    $tests[] = [
      $yaml,
      $expected,
      false,
    ];
    return $tests;
  }
  public function testTaggedInlineMapping() {
    $this
      ->assertEquals(new TaggedValue('foo', [
      'foo' => 'bar',
    ]), $this->parser
      ->parse('!foo {foo: bar}', Yaml::PARSE_CUSTOM_TAGS));
  }

  /**
   * @dataProvider taggedValuesProvider
   */
  public function testCustomTagSupport($expected, $yaml) {
    $this
      ->assertEquals($expected, $this->parser
      ->parse($yaml, Yaml::PARSE_CUSTOM_TAGS));
  }
  public function taggedValuesProvider() {
    return [
      'sequences' => [
        [
          new TaggedValue('foo', [
            'yaml',
          ]),
          new TaggedValue('quz', [
            'bar',
          ]),
        ],
        <<<YAML
- !foo
    - yaml
- !quz [bar]
YAML
,
      ],
      'mappings' => [
        new TaggedValue('foo', [
          'foo' => new TaggedValue('quz', [
            'bar',
          ]),
          'quz' => new TaggedValue('foo', [
            'quz' => 'bar',
          ]),
        ]),
        <<<YAML
!foo
foo: !quz [bar]
quz: !foo
   quz: bar
YAML
,
      ],
      'inline' => [
        [
          new TaggedValue('foo', [
            'foo',
            'bar',
          ]),
          new TaggedValue('quz', [
            'foo' => 'bar',
            'quz' => new TaggedValue('bar', [
              'one' => 'bar',
            ]),
          ]),
        ],
        <<<YAML
- !foo [foo, bar]
- !quz {foo: bar, quz: !bar {one: bar}}
YAML
,
      ],
    ];
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessage Tags support is not enabled. Enable the `Yaml::PARSE_CUSTOM_TAGS` flag to use "!iterator" at line 1 (near "!iterator [foo]").
   */
  public function testCustomTagsDisabled() {
    $this->parser
      ->parse('!iterator [foo]');
  }

  /**
   * @group legacy
   * @expectedDeprecation Using the unquoted scalar value "!iterator foo" is deprecated since Symfony 3.3 and will be considered as a tagged value in 4.0. You must quote it on line 1.
   */
  public function testUnsupportedTagWithScalar() {
    $this
      ->assertEquals('!iterator foo', $this->parser
      ->parse('!iterator foo'));
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessage The built-in tag "!!foo" is not implemented at line 1 (near "!!foo").
   */
  public function testExceptionWhenUsingUnsuportedBuiltInTags() {
    $this->parser
      ->parse('!!foo');
  }

  /**
   * @group legacy
   * @expectedDeprecation Starting an unquoted string with a question mark followed by a space is deprecated since Symfony 3.3 and will throw \Symfony\Component\Yaml\Exception\ParseException in 4.0 on line 1.
   */
  public function testComplexMappingThrowsParseException() {
    $yaml = <<<YAML
? "1"
:
  name: végétalien
YAML;
    $this->parser
      ->parse($yaml);
  }

  /**
   * @group legacy
   * @expectedDeprecation Starting an unquoted string with a question mark followed by a space is deprecated since Symfony 3.3 and will throw \Symfony\Component\Yaml\Exception\ParseException in 4.0 on line 2.
   */
  public function testComplexMappingNestedInMappingThrowsParseException() {
    $yaml = <<<YAML
diet:
  ? "1"
  :
    name: végétalien
YAML;
    $this->parser
      ->parse($yaml);
  }

  /**
   * @group legacy
   * @expectedDeprecation Starting an unquoted string with a question mark followed by a space is deprecated since Symfony 3.3 and will throw \Symfony\Component\Yaml\Exception\ParseException in 4.0 on line 1.
   */
  public function testComplexMappingNestedInSequenceThrowsParseException() {
    $yaml = <<<YAML
- ? "1"
  :
    name: végétalien
YAML;
    $this->parser
      ->parse($yaml);
  }

  /**
   * @expectedException        \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessage Unable to parse at line 1 (near "[parameters]").
   */
  public function testParsingIniThrowsException() {
    $ini = <<<INI
[parameters]
  foo = bar
  bar = %foo%
INI;
    $this->parser
      ->parse($ini);
  }
  private function loadTestsFromFixtureFiles($testsFile) {
    $parser = new Parser();
    $tests = [];
    $files = $parser
      ->parseFile(__DIR__ . '/Fixtures/' . $testsFile);
    foreach ($files as $file) {
      $yamls = file_get_contents(__DIR__ . '/Fixtures/' . $file . '.yml');

      // split YAMLs documents
      foreach (preg_split('/^---( %YAML\\:1\\.0)?/m', $yamls) as $yaml) {
        if (!$yaml) {
          continue;
        }
        $test = $parser
          ->parse($yaml);
        if (isset($test['todo']) && $test['todo']) {

          // TODO
        }
        else {
          eval('$expected = ' . trim($test['php']) . ';');
          $tests[] = [
            var_export($expected, true),
            $test['yaml'],
            $test['test'],
            isset($test['deprecated']) ? $test['deprecated'] : false,
          ];
        }
      }
    }
    return $tests;
  }
  public function testCanParseVeryLongValue() {
    $longStringWithSpaces = str_repeat('xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ', 20000);
    $trickyVal = [
      'x' => $longStringWithSpaces,
    ];
    $yamlString = Yaml::dump($trickyVal);
    $arrayFromYaml = $this->parser
      ->parse($yamlString);
    $this
      ->assertEquals($trickyVal, $arrayFromYaml);
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessage Reference "foo" does not exist at line 2
   */
  public function testParserCleansUpReferencesBetweenRuns() {
    $yaml = <<<YAML
foo: &foo
    baz: foobar
bar:
    <<: *foo
YAML;
    $this->parser
      ->parse($yaml);
    $yaml = <<<YAML
bar:
    <<: *foo
YAML;
    $this->parser
      ->parse($yaml);
  }
  public function testPhpConstantTagMappingKey() {
    $yaml = <<<YAML
transitions:
    !php/const 'Symfony\\Component\\Yaml\\Tests\\B::FOO':
        from:
            - !php/const 'Symfony\\Component\\Yaml\\Tests\\B::BAR'
        to: !php/const 'Symfony\\Component\\Yaml\\Tests\\B::BAZ'
YAML;
    $expected = [
      'transitions' => [
        'foo' => [
          'from' => [
            'bar',
          ],
          'to' => 'baz',
        ],
      ],
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml, Yaml::PARSE_CONSTANT));
  }

  /**
   * @group legacy
   * @expectedDeprecation The !php/const: tag to indicate dumped PHP constants is deprecated since Symfony 3.4 and will be removed in 4.0. Use the !php/const (without the colon) tag instead on line 2.
   * @expectedDeprecation The !php/const: tag to indicate dumped PHP constants is deprecated since Symfony 3.4 and will be removed in 4.0. Use the !php/const (without the colon) tag instead on line 4.
   * @expectedDeprecation The !php/const: tag to indicate dumped PHP constants is deprecated since Symfony 3.4 and will be removed in 4.0. Use the !php/const (without the colon) tag instead on line 5.
   */
  public function testDeprecatedPhpConstantTagMappingKey() {
    $yaml = <<<YAML
transitions:
    !php/const:Symfony\\Component\\Yaml\\Tests\\B::FOO:
        from:
            - !php/const:Symfony\\Component\\Yaml\\Tests\\B::BAR
        to: !php/const:Symfony\\Component\\Yaml\\Tests\\B::BAZ
YAML;
    $expected = [
      'transitions' => [
        'foo' => [
          'from' => [
            'bar',
          ],
          'to' => 'baz',
        ],
      ],
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml, Yaml::PARSE_CONSTANT));
  }

  /**
   * @group legacy
   * @expectedDeprecation Using the Yaml::PARSE_KEYS_AS_STRINGS flag is deprecated since Symfony 3.4 as it will be removed in 4.0. Quote your keys when they are evaluable instead.
   */
  public function testPhpConstantTagMappingKeyWithKeysCastToStrings() {
    $yaml = <<<YAML
transitions:
    !php/const 'Symfony\\Component\\Yaml\\Tests\\B::FOO':
        from:
            - !php/const 'Symfony\\Component\\Yaml\\Tests\\B::BAR'
        to: !php/const 'Symfony\\Component\\Yaml\\Tests\\B::BAZ'
YAML;
    $expected = [
      'transitions' => [
        'foo' => [
          'from' => [
            'bar',
          ],
          'to' => 'baz',
        ],
      ],
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml, Yaml::PARSE_CONSTANT | Yaml::PARSE_KEYS_AS_STRINGS));
  }
  public function testMergeKeysWhenMappingsAreParsedAsObjects() {
    $yaml = <<<YAML
foo: &FOO
    bar: 1
bar: &BAR
    baz: 2
    <<: *FOO
baz:
    baz_foo: 3
    <<:
        baz_bar: 4
foobar:
    bar: ~
    <<: [*FOO, *BAR]
YAML;
    $expected = (object) [
      'foo' => (object) [
        'bar' => 1,
      ],
      'bar' => (object) [
        'baz' => 2,
        'bar' => 1,
      ],
      'baz' => (object) [
        'baz_foo' => 3,
        'baz_bar' => 4,
      ],
      'foobar' => (object) [
        'bar' => null,
        'baz' => 2,
      ],
    ];
    $this
      ->assertEquals($expected, $this->parser
      ->parse($yaml, Yaml::PARSE_OBJECT_FOR_MAP));
  }
  public function testFilenamesAreParsedAsStringsWithoutFlag() {
    $file = __DIR__ . '/Fixtures/index.yml';
    $this
      ->assertSame($file, $this->parser
      ->parse($file));
  }
  public function testParseFile() {
    $this
      ->assertInternalType('array', $this->parser
      ->parseFile(__DIR__ . '/Fixtures/index.yml'));
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessageRegExp #^File ".+/Fixtures/nonexistent.yml" does not exist\.$#
   */
  public function testParsingNonExistentFilesThrowsException() {
    $this->parser
      ->parseFile(__DIR__ . '/Fixtures/nonexistent.yml');
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessageRegExp #^File ".+/Fixtures/not_readable.yml" cannot be read\.$#
   */
  public function testParsingNotReadableFilesThrowsException() {
    if ('\\' === \DIRECTORY_SEPARATOR) {
      $this
        ->markTestSkipped('chmod is not supported on Windows');
    }
    if (!getenv('USER') || 'root' === getenv('USER')) {
      $this
        ->markTestSkipped('This test will fail if run under superuser');
    }
    $file = __DIR__ . '/Fixtures/not_readable.yml';
    chmod($file, 0200);
    $this->parser
      ->parseFile($file);
  }
  public function testParseReferencesOnMergeKeys() {
    $yaml = <<<YAML
mergekeyrefdef:
    a: foo
    <<: &quux
        b: bar
        c: baz
mergekeyderef:
    d: quux
    <<: *quux
YAML;
    $expected = [
      'mergekeyrefdef' => [
        'a' => 'foo',
        'b' => 'bar',
        'c' => 'baz',
      ],
      'mergekeyderef' => [
        'd' => 'quux',
        'b' => 'bar',
        'c' => 'baz',
      ],
    ];
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }
  public function testParseReferencesOnMergeKeysWithMappingsParsedAsObjects() {
    $yaml = <<<YAML
mergekeyrefdef:
    a: foo
    <<: &quux
        b: bar
        c: baz
mergekeyderef:
    d: quux
    <<: *quux
YAML;
    $expected = (object) [
      'mergekeyrefdef' => (object) [
        'a' => 'foo',
        'b' => 'bar',
        'c' => 'baz',
      ],
      'mergekeyderef' => (object) [
        'd' => 'quux',
        'b' => 'bar',
        'c' => 'baz',
      ],
    ];
    $this
      ->assertEquals($expected, $this->parser
      ->parse($yaml, Yaml::PARSE_OBJECT_FOR_MAP));
  }

  /**
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessage Reference "foo" does not exist
   */
  public function testEvalRefException() {
    $yaml = <<<EOE
foo: { &foo { a: Steve, <<: *foo} }
EOE;
    $this->parser
      ->parse($yaml);
  }

  /**
   * @dataProvider circularReferenceProvider
   * @expectedException \Symfony\Component\Yaml\Exception\ParseException
   * @expectedExceptionMessage Circular reference [foo, bar, foo] detected
   */
  public function testDetectCircularReferences($yaml) {
    $this->parser
      ->parse($yaml, Yaml::PARSE_CUSTOM_TAGS);
  }
  public function circularReferenceProvider() {
    $tests = [];
    $yaml = <<<YAML
foo:
    - &foo
      - &bar
        bar: foobar
        baz: *foo
YAML;
    $tests['sequence'] = [
      $yaml,
    ];
    $yaml = <<<YAML
foo: &foo
    bar: &bar
        foobar: baz
        baz: *foo
YAML;
    $tests['mapping'] = [
      $yaml,
    ];
    $yaml = <<<YAML
foo: &foo
    bar: &bar
        foobar: baz
        <<: *foo
YAML;
    $tests['mapping with merge key'] = [
      $yaml,
    ];
    return $tests;
  }

  /**
   * @dataProvider indentedMappingData
   */
  public function testParseIndentedMappings($yaml, $expected) {
    $this
      ->assertSame($expected, $this->parser
      ->parse($yaml));
  }
  public function indentedMappingData() {
    $tests = [];
    $yaml = <<<YAML
foo:
  - bar: "foobar"
    # A comment
    baz: "foobaz"
YAML;
    $expected = [
      'foo' => [
        [
          'bar' => 'foobar',
          'baz' => 'foobaz',
        ],
      ],
    ];
    $tests['comment line is first line in indented block'] = [
      $yaml,
      $expected,
    ];
    $yaml = <<<YAML
foo:
    - bar:
        # comment
        baz: [1, 2, 3]
YAML;
    $expected = [
      'foo' => [
        [
          'bar' => [
            'baz' => [
              1,
              2,
              3,
            ],
          ],
        ],
      ],
    ];
    $tests['mapping value on new line starting with a comment line'] = [
      $yaml,
      $expected,
    ];
    $yaml = <<<YAML
foo:
  -
    bar: foobar
YAML;
    $expected = [
      'foo' => [
        [
          'bar' => 'foobar',
        ],
      ],
    ];
    $tests['mapping in sequence starting on a new line'] = [
      $yaml,
      $expected,
    ];
    $yaml = <<<YAML
foo:

    bar: baz
YAML;
    $expected = [
      'foo' => [
        'bar' => 'baz',
      ],
    ];
    $tests['blank line at the beginning of an indented mapping value'] = [
      $yaml,
      $expected,
    ];
    return $tests;
  }

}
class B {
  public $b = 'foo';
  const FOO = 'foo';
  const BAR = 'bar';
  const BAZ = 'baz';

}

Classes

Name	Description
B
ParserTest