1<?php
2
3/*
4 * This file is part of the Symfony package.
5 *
6 * (c) Fabien Potencier <fabien@symfony.com>
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12namespace Symfony\Component\Yaml\Tests;
13
14use PHPUnit\Framework\TestCase;
15use Symfony\Component\Yaml\Exception\ParseException;
16use Symfony\Component\Yaml\Parser;
17use Symfony\Component\Yaml\Tag\TaggedValue;
18use Symfony\Component\Yaml\Yaml;
19
20class ParserTest extends TestCase
21{
22    /** @var Parser */
23    protected $parser;
24
25    protected function setUp()
26    {
27        $this->parser = new Parser();
28    }
29
30    protected function tearDown()
31    {
32        $this->parser = null;
33
34        chmod(__DIR__.'/Fixtures/not_readable.yml', 0644);
35    }
36
37    /**
38     * @dataProvider getDataFormSpecifications
39     */
40    public function testSpecifications($expected, $yaml, $comment)
41    {
42        $this->assertEquals($expected, var_export($this->parser->parse($yaml), true), $comment);
43    }
44
45    public function getDataFormSpecifications()
46    {
47        return $this->loadTestsFromFixtureFiles('index.yml');
48    }
49
50    public function getNonStringMappingKeysData()
51    {
52        return $this->loadTestsFromFixtureFiles('nonStringKeys.yml');
53    }
54
55    public function testTabsInYaml()
56    {
57        // test tabs in YAML
58        $yamls = [
59            "foo:\n	bar",
60            "foo:\n 	bar",
61            "foo:\n	 bar",
62            "foo:\n 	 bar",
63        ];
64
65        foreach ($yamls as $yaml) {
66            try {
67                $content = $this->parser->parse($yaml);
68
69                $this->fail('YAML files must not contain tabs');
70            } catch (\Exception $e) {
71                $this->assertInstanceOf('\Exception', $e, 'YAML files must not contain tabs');
72                $this->assertEquals('A YAML file cannot contain tabs as indentation at line 2 (near "'.strpbrk($yaml, "\t").'").', $e->getMessage(), 'YAML files must not contain tabs');
73            }
74        }
75    }
76
77    public function testEndOfTheDocumentMarker()
78    {
79        $yaml = <<<'EOF'
80--- %YAML:1.0
81foo
82...
83EOF;
84
85        $this->assertEquals('foo', $this->parser->parse($yaml));
86    }
87
88    public function getBlockChompingTests()
89    {
90        $tests = [];
91
92        $yaml = <<<'EOF'
93foo: |-
94    one
95    two
96bar: |-
97    one
98    two
99
100EOF;
101        $expected = [
102            'foo' => "one\ntwo",
103            'bar' => "one\ntwo",
104        ];
105        $tests['Literal block chomping strip with single trailing newline'] = [$expected, $yaml];
106
107        $yaml = <<<'EOF'
108foo: |-
109    one
110    two
111
112bar: |-
113    one
114    two
115
116
117EOF;
118        $expected = [
119            'foo' => "one\ntwo",
120            'bar' => "one\ntwo",
121        ];
122        $tests['Literal block chomping strip with multiple trailing newlines'] = [$expected, $yaml];
123
124        $yaml = <<<'EOF'
125{}
126
127
128EOF;
129        $expected = [];
130        $tests['Literal block chomping strip with multiple trailing newlines after a 1-liner'] = [$expected, $yaml];
131
132        $yaml = <<<'EOF'
133foo: |-
134    one
135    two
136bar: |-
137    one
138    two
139EOF;
140        $expected = [
141            'foo' => "one\ntwo",
142            'bar' => "one\ntwo",
143        ];
144        $tests['Literal block chomping strip without trailing newline'] = [$expected, $yaml];
145
146        $yaml = <<<'EOF'
147foo: |
148    one
149    two
150bar: |
151    one
152    two
153
154EOF;
155        $expected = [
156            'foo' => "one\ntwo\n",
157            'bar' => "one\ntwo\n",
158        ];
159        $tests['Literal block chomping clip with single trailing newline'] = [$expected, $yaml];
160
161        $yaml = <<<'EOF'
162foo: |
163    one
164    two
165
166bar: |
167    one
168    two
169
170
171EOF;
172        $expected = [
173            'foo' => "one\ntwo\n",
174            'bar' => "one\ntwo\n",
175        ];
176        $tests['Literal block chomping clip with multiple trailing newlines'] = [$expected, $yaml];
177
178        $yaml = <<<'EOF'
179foo:
180- bar: |
181    one
182
183    two
184EOF;
185        $expected = [
186            'foo' => [
187                [
188                    'bar' => "one\n\ntwo",
189                ],
190            ],
191        ];
192        $tests['Literal block chomping clip with embedded blank line inside unindented collection'] = [$expected, $yaml];
193
194        $yaml = <<<'EOF'
195foo: |
196    one
197    two
198bar: |
199    one
200    two
201EOF;
202        $expected = [
203            'foo' => "one\ntwo\n",
204            'bar' => "one\ntwo",
205        ];
206        $tests['Literal block chomping clip without trailing newline'] = [$expected, $yaml];
207
208        $yaml = <<<'EOF'
209foo: |+
210    one
211    two
212bar: |+
213    one
214    two
215
216EOF;
217        $expected = [
218            'foo' => "one\ntwo\n",
219            'bar' => "one\ntwo\n",
220        ];
221        $tests['Literal block chomping keep with single trailing newline'] = [$expected, $yaml];
222
223        $yaml = <<<'EOF'
224foo: |+
225    one
226    two
227
228bar: |+
229    one
230    two
231
232
233EOF;
234        $expected = [
235            'foo' => "one\ntwo\n\n",
236            'bar' => "one\ntwo\n\n",
237        ];
238        $tests['Literal block chomping keep with multiple trailing newlines'] = [$expected, $yaml];
239
240        $yaml = <<<'EOF'
241foo: |+
242    one
243    two
244bar: |+
245    one
246    two
247EOF;
248        $expected = [
249            'foo' => "one\ntwo\n",
250            'bar' => "one\ntwo",
251        ];
252        $tests['Literal block chomping keep without trailing newline'] = [$expected, $yaml];
253
254        $yaml = <<<'EOF'
255foo: >-
256    one
257    two
258bar: >-
259    one
260    two
261
262EOF;
263        $expected = [
264            'foo' => 'one two',
265            'bar' => 'one two',
266        ];
267        $tests['Folded block chomping strip with single trailing newline'] = [$expected, $yaml];
268
269        $yaml = <<<'EOF'
270foo: >-
271    one
272    two
273
274bar: >-
275    one
276    two
277
278
279EOF;
280        $expected = [
281            'foo' => 'one two',
282            'bar' => 'one two',
283        ];
284        $tests['Folded block chomping strip with multiple trailing newlines'] = [$expected, $yaml];
285
286        $yaml = <<<'EOF'
287foo: >-
288    one
289    two
290bar: >-
291    one
292    two
293EOF;
294        $expected = [
295            'foo' => 'one two',
296            'bar' => 'one two',
297        ];
298        $tests['Folded block chomping strip without trailing newline'] = [$expected, $yaml];
299
300        $yaml = <<<'EOF'
301foo: >
302    one
303    two
304bar: >
305    one
306    two
307
308EOF;
309        $expected = [
310            'foo' => "one two\n",
311            'bar' => "one two\n",
312        ];
313        $tests['Folded block chomping clip with single trailing newline'] = [$expected, $yaml];
314
315        $yaml = <<<'EOF'
316foo: >
317    one
318    two
319
320bar: >
321    one
322    two
323
324
325EOF;
326        $expected = [
327            'foo' => "one two\n",
328            'bar' => "one two\n",
329        ];
330        $tests['Folded block chomping clip with multiple trailing newlines'] = [$expected, $yaml];
331
332        $yaml = <<<'EOF'
333foo: >
334    one
335    two
336bar: >
337    one
338    two
339EOF;
340        $expected = [
341            'foo' => "one two\n",
342            'bar' => 'one two',
343        ];
344        $tests['Folded block chomping clip without trailing newline'] = [$expected, $yaml];
345
346        $yaml = <<<'EOF'
347foo: >+
348    one
349    two
350bar: >+
351    one
352    two
353
354EOF;
355        $expected = [
356            'foo' => "one two\n",
357            'bar' => "one two\n",
358        ];
359        $tests['Folded block chomping keep with single trailing newline'] = [$expected, $yaml];
360
361        $yaml = <<<'EOF'
362foo: >+
363    one
364    two
365
366bar: >+
367    one
368    two
369
370
371EOF;
372        $expected = [
373            'foo' => "one two\n\n",
374            'bar' => "one two\n\n",
375        ];
376        $tests['Folded block chomping keep with multiple trailing newlines'] = [$expected, $yaml];
377
378        $yaml = <<<'EOF'
379foo: >+
380    one
381    two
382bar: >+
383    one
384    two
385EOF;
386        $expected = [
387            'foo' => "one two\n",
388            'bar' => 'one two',
389        ];
390        $tests['Folded block chomping keep without trailing newline'] = [$expected, $yaml];
391
392        return $tests;
393    }
394
395    /**
396     * @dataProvider getBlockChompingTests
397     */
398    public function testBlockChomping($expected, $yaml)
399    {
400        $this->assertSame($expected, $this->parser->parse($yaml));
401    }
402
403    /**
404     * Regression test for issue #7989.
405     *
406     * @see https://github.com/symfony/symfony/issues/7989
407     */
408    public function testBlockLiteralWithLeadingNewlines()
409    {
410        $yaml = <<<'EOF'
411foo: |-
412
413
414    bar
415
416EOF;
417        $expected = [
418            'foo' => "\n\nbar",
419        ];
420
421        $this->assertSame($expected, $this->parser->parse($yaml));
422    }
423
424    public function testObjectSupportEnabled()
425    {
426        $input = <<<'EOF'
427foo: !php/object O:30:"Symfony\Component\Yaml\Tests\B":1:{s:1:"b";s:3:"foo";}
428bar: 1
429EOF;
430        $this->assertEquals(['foo' => new B(), 'bar' => 1], $this->parser->parse($input, Yaml::PARSE_OBJECT), '->parse() is able to parse objects');
431    }
432
433    public function testObjectSupportDisabledButNoExceptions()
434    {
435        $input = <<<'EOF'
436foo: !php/object O:30:"Symfony\Tests\Component\Yaml\B":1:{s:1:"b";s:3:"foo";}
437bar: 1
438EOF;
439        $this->assertEquals(['foo' => null, 'bar' => 1], $this->parser->parse($input), '->parse() does not parse objects');
440    }
441
442    /**
443     * @dataProvider getObjectForMapTests
444     */
445    public function testObjectForMap($yaml, $expected)
446    {
447        $flags = Yaml::PARSE_OBJECT_FOR_MAP;
448
449        $this->assertEquals($expected, $this->parser->parse($yaml, $flags));
450    }
451
452    public function getObjectForMapTests()
453    {
454        $tests = [];
455
456        $yaml = <<<'EOF'
457foo:
458    fiz: [cat]
459EOF;
460        $expected = new \stdClass();
461        $expected->foo = new \stdClass();
462        $expected->foo->fiz = ['cat'];
463        $tests['mapping'] = [$yaml, $expected];
464
465        $yaml = '{ "foo": "bar", "fiz": "cat" }';
466        $expected = new \stdClass();
467        $expected->foo = 'bar';
468        $expected->fiz = 'cat';
469        $tests['inline-mapping'] = [$yaml, $expected];
470
471        $yaml = "foo: bar\nbaz: foobar";
472        $expected = new \stdClass();
473        $expected->foo = 'bar';
474        $expected->baz = 'foobar';
475        $tests['object-for-map-is-applied-after-parsing'] = [$yaml, $expected];
476
477        $yaml = <<<'EOT'
478array:
479  - key: one
480  - key: two
481EOT;
482        $expected = new \stdClass();
483        $expected->array = [];
484        $expected->array[0] = new \stdClass();
485        $expected->array[0]->key = 'one';
486        $expected->array[1] = new \stdClass();
487        $expected->array[1]->key = 'two';
488        $tests['nest-map-and-sequence'] = [$yaml, $expected];
489
490        $yaml = <<<'YAML'
491map:
492  1: one
493  2: two
494YAML;
495        $expected = new \stdClass();
496        $expected->map = new \stdClass();
497        $expected->map->{1} = 'one';
498        $expected->map->{2} = 'two';
499        $tests['numeric-keys'] = [$yaml, $expected];
500
501        $yaml = <<<'YAML'
502map:
503  '0': one
504  '1': two
505YAML;
506        $expected = new \stdClass();
507        $expected->map = new \stdClass();
508        $expected->map->{0} = 'one';
509        $expected->map->{1} = 'two';
510        $tests['zero-indexed-numeric-keys'] = [$yaml, $expected];
511
512        return $tests;
513    }
514
515    /**
516     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
517     */
518    public function testObjectsSupportDisabledWithExceptions()
519    {
520        $yaml = <<<'EOF'
521foo: !php/object:O:30:"Symfony\Tests\Component\Yaml\B":1:{s:1:"b";s:3:"foo";}
522bar: 1
523EOF;
524
525        $this->parser->parse($yaml, Yaml::PARSE_EXCEPTION_ON_INVALID_TYPE);
526    }
527
528    public function testCanParseContentWithTrailingSpaces()
529    {
530        $yaml = "items:  \n  foo: bar";
531
532        $expected = [
533            'items' => ['foo' => 'bar'],
534        ];
535
536        $this->assertSame($expected, $this->parser->parse($yaml));
537    }
538
539    /**
540     * @requires extension iconv
541     */
542    public function testNonUtf8Exception()
543    {
544        $yamls = [
545            iconv('UTF-8', 'ISO-8859-1', "foo: 'äöüß'"),
546            iconv('UTF-8', 'ISO-8859-15', "euro: '€'"),
547            iconv('UTF-8', 'CP1252', "cp1252: '©ÉÇáñ'"),
548        ];
549
550        foreach ($yamls as $yaml) {
551            try {
552                $this->parser->parse($yaml);
553
554                $this->fail('charsets other than UTF-8 are rejected.');
555            } catch (\Exception $e) {
556                $this->assertInstanceOf('Symfony\Component\Yaml\Exception\ParseException', $e, 'charsets other than UTF-8 are rejected.');
557            }
558        }
559    }
560
561    /**
562     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
563     */
564    public function testUnindentedCollectionException()
565    {
566        $yaml = <<<'EOF'
567
568collection:
569-item1
570-item2
571-item3
572
573EOF;
574
575        $this->parser->parse($yaml);
576    }
577
578    /**
579     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
580     */
581    public function testShortcutKeyUnindentedCollectionException()
582    {
583        $yaml = <<<'EOF'
584
585collection:
586-  key: foo
587  foo: bar
588
589EOF;
590
591        $this->parser->parse($yaml);
592    }
593
594    /**
595     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
596     * @expectedExceptionMessageRegExp /^Multiple documents are not supported.+/
597     */
598    public function testMultipleDocumentsNotSupportedException()
599    {
600        Yaml::parse(<<<'EOL'
601# Ranking of 1998 home runs
602---
603- Mark McGwire
604- Sammy Sosa
605- Ken Griffey
606
607# Team ranking
608---
609- Chicago Cubs
610- St Louis Cardinals
611EOL
612        );
613    }
614
615    /**
616     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
617     */
618    public function testSequenceInAMapping()
619    {
620        Yaml::parse(<<<'EOF'
621yaml:
622  hash: me
623  - array stuff
624EOF
625        );
626    }
627
628    public function testSequenceInMappingStartedBySingleDashLine()
629    {
630        $yaml = <<<'EOT'
631a:
632-
633  b:
634  -
635    bar: baz
636- foo
637d: e
638EOT;
639        $expected = [
640            'a' => [
641                [
642                    'b' => [
643                        [
644                            'bar' => 'baz',
645                        ],
646                    ],
647                ],
648                'foo',
649            ],
650            'd' => 'e',
651        ];
652
653        $this->assertSame($expected, $this->parser->parse($yaml));
654    }
655
656    public function testSequenceFollowedByCommentEmbeddedInMapping()
657    {
658        $yaml = <<<'EOT'
659a:
660    b:
661        - c
662# comment
663    d: e
664EOT;
665        $expected = [
666            'a' => [
667                'b' => ['c'],
668                'd' => 'e',
669            ],
670        ];
671
672        $this->assertSame($expected, $this->parser->parse($yaml));
673    }
674
675    public function testNonStringFollowedByCommentEmbeddedInMapping()
676    {
677        $yaml = <<<'EOT'
678a:
679    b:
680        {}
681# comment
682    d:
683        1.1
684# another comment
685EOT;
686        $expected = [
687            'a' => [
688                'b' => [],
689                'd' => 1.1,
690            ],
691        ];
692
693        $this->assertSame($expected, $this->parser->parse($yaml));
694    }
695
696    public function getParseExceptionNotAffectedMultiLineStringLastResortParsing()
697    {
698        $tests = [];
699
700        $yaml = <<<'EOT'
701a
702    b:
703EOT;
704        $tests['parse error on first line'] = [$yaml];
705
706        $yaml = <<<'EOT'
707a
708
709b
710    c:
711EOT;
712        $tests['parse error due to inconsistent indentation'] = [$yaml];
713
714        $yaml = <<<'EOT'
715 &  *  !  |  >  '  "  %  @  ` #, { asd a;sdasd }-@^qw3
716EOT;
717        $tests['symfony/symfony/issues/22967#issuecomment-322067742'] = [$yaml];
718
719        return $tests;
720    }
721
722    /**
723     * @dataProvider getParseExceptionNotAffectedMultiLineStringLastResortParsing
724     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
725     */
726    public function testParseExceptionNotAffectedByMultiLineStringLastResortParsing($yaml)
727    {
728        $this->parser->parse($yaml);
729    }
730
731    public function testMultiLineStringLastResortParsing()
732    {
733        $yaml = <<<'EOT'
734test:
735  You can have things that don't look like strings here
736  true
737  yes you can
738EOT;
739        $expected = [
740            'test' => 'You can have things that don\'t look like strings here true yes you can',
741        ];
742
743        $this->assertSame($expected, $this->parser->parse($yaml));
744
745        $yaml = <<<'EOT'
746a:
747    b
748       c
749EOT;
750        $expected = [
751            'a' => 'b c',
752        ];
753
754        $this->assertSame($expected, $this->parser->parse($yaml));
755    }
756
757    /**
758     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
759     */
760    public function testMappingInASequence()
761    {
762        Yaml::parse(<<<'EOF'
763yaml:
764  - array stuff
765  hash: me
766EOF
767        );
768    }
769
770    /**
771     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
772     * @expectedExceptionMessage missing colon
773     */
774    public function testScalarInSequence()
775    {
776        Yaml::parse(<<<'EOF'
777foo:
778    - bar
779"missing colon"
780    foo: bar
781EOF
782        );
783    }
784
785    /**
786     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
787     * @expectedExceptionMessage Duplicate key "child" detected
788     *
789     * > It is an error for two equal keys to appear in the same mapping node.
790     * > In such a case the YAML processor may continue, ignoring the second
791     * > "key: value" pair and issuing an appropriate warning. This strategy
792     * > preserves a consistent information model for one-pass and random access
793     * > applications.
794     *
795     * @see http://yaml.org/spec/1.2/spec.html#id2759572
796     * @see http://yaml.org/spec/1.1/#id932806
797     */
798    public function testMappingDuplicateKeyBlock()
799    {
800        $input = <<<'EOD'
801parent:
802    child: first
803    child: duplicate
804parent:
805    child: duplicate
806    child: duplicate
807EOD;
808        $expected = [
809            'parent' => [
810                'child' => 'first',
811            ],
812        ];
813        $this->assertSame($expected, Yaml::parse($input));
814    }
815
816    /**
817     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
818     * @expectedExceptionMessage Duplicate key "child" detected
819     */
820    public function testMappingDuplicateKeyFlow()
821    {
822        $input = <<<'EOD'
823parent: { child: first, child: duplicate }
824parent: { child: duplicate, child: duplicate }
825EOD;
826        $expected = [
827            'parent' => [
828                'child' => 'first',
829            ],
830        ];
831        $this->assertSame($expected, Yaml::parse($input));
832    }
833
834    /**
835     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
836     * @dataProvider getParseExceptionOnDuplicateData
837     */
838    public function testParseExceptionOnDuplicate($input, $duplicateKey, $lineNumber)
839    {
840        $this->expectExceptionMessage(sprintf('Duplicate key "%s" detected at line %d', $duplicateKey, $lineNumber));
841
842        Yaml::parse($input);
843    }
844
845    public function getParseExceptionOnDuplicateData()
846    {
847        $tests = [];
848
849        $yaml = <<<EOD
850parent: { child: first, child: duplicate }
851EOD;
852        $tests[] = [$yaml, 'child', 1];
853
854        $yaml = <<<EOD
855parent:
856  child: first,
857  child: duplicate
858EOD;
859        $tests[] = [$yaml, 'child', 3];
860
861        $yaml = <<<EOD
862parent: { child: foo }
863parent: { child: bar }
864EOD;
865        $tests[] = [$yaml, 'parent', 2];
866
867        $yaml = <<<EOD
868parent: { child_mapping: { value: bar},  child_mapping: { value: bar} }
869EOD;
870        $tests[] = [$yaml, 'child_mapping', 1];
871
872        $yaml = <<<EOD
873parent:
874  child_mapping:
875    value: bar
876  child_mapping:
877    value: bar
878EOD;
879        $tests[] = [$yaml, 'child_mapping', 4];
880
881        $yaml = <<<EOD
882parent: { child_sequence: ['key1', 'key2', 'key3'],  child_sequence: ['key1', 'key2', 'key3'] }
883EOD;
884        $tests[] = [$yaml, 'child_sequence', 1];
885
886        $yaml = <<<EOD
887parent:
888  child_sequence:
889    - key1
890    - key2
891    - key3
892  child_sequence:
893    - key1
894    - key2
895    - key3
896EOD;
897        $tests[] = [$yaml, 'child_sequence', 6];
898
899        return $tests;
900    }
901
902    public function testEmptyValue()
903    {
904        $input = <<<'EOF'
905hash:
906EOF;
907
908        $this->assertEquals(['hash' => null], Yaml::parse($input));
909    }
910
911    public function testCommentAtTheRootIndent()
912    {
913        $this->assertEquals([
914            'services' => [
915                'app.foo_service' => [
916                    'class' => 'Foo',
917                ],
918                'app/bar_service' => [
919                    'class' => 'Bar',
920                ],
921            ],
922        ], Yaml::parse(<<<'EOF'
923# comment 1
924services:
925# comment 2
926    # comment 3
927    app.foo_service:
928        class: Foo
929# comment 4
930    # comment 5
931    app/bar_service:
932        class: Bar
933EOF
934        ));
935    }
936
937    public function testStringBlockWithComments()
938    {
939        $this->assertEquals(['content' => <<<'EOT'
940# comment 1
941header
942
943    # comment 2
944    <body>
945        <h1>title</h1>
946    </body>
947
948footer # comment3
949EOT
950        ], Yaml::parse(<<<'EOF'
951content: |
952    # comment 1
953    header
954
955        # comment 2
956        <body>
957            <h1>title</h1>
958        </body>
959
960    footer # comment3
961EOF
962        ));
963    }
964
965    public function testFoldedStringBlockWithComments()
966    {
967        $this->assertEquals([['content' => <<<'EOT'
968# comment 1
969header
970
971    # comment 2
972    <body>
973        <h1>title</h1>
974    </body>
975
976footer # comment3
977EOT
978        ]], Yaml::parse(<<<'EOF'
979-
980    content: |
981        # comment 1
982        header
983
984            # comment 2
985            <body>
986                <h1>title</h1>
987            </body>
988
989        footer # comment3
990EOF
991        ));
992    }
993
994    public function testNestedFoldedStringBlockWithComments()
995    {
996        $this->assertEquals([[
997            'title' => 'some title',
998            'content' => <<<'EOT'
999# comment 1
1000header
1001
1002    # comment 2
1003    <body>
1004        <h1>title</h1>
1005    </body>
1006
1007footer # comment3
1008EOT
1009        ]], Yaml::parse(<<<'EOF'
1010-
1011    title: some title
1012    content: |
1013        # comment 1
1014        header
1015
1016            # comment 2
1017            <body>
1018                <h1>title</h1>
1019            </body>
1020
1021        footer # comment3
1022EOF
1023        ));
1024    }
1025
1026    public function testReferenceResolvingInInlineStrings()
1027    {
1028        $this->assertEquals([
1029            'var' => 'var-value',
1030            'scalar' => 'var-value',
1031            'list' => ['var-value'],
1032            'list_in_list' => [['var-value']],
1033            'map_in_list' => [['key' => 'var-value']],
1034            'embedded_mapping' => [['key' => 'var-value']],
1035            'map' => ['key' => 'var-value'],
1036            'list_in_map' => ['key' => ['var-value']],
1037            'map_in_map' => ['foo' => ['bar' => 'var-value']],
1038        ], Yaml::parse(<<<'EOF'
1039var:  &var var-value
1040scalar: *var
1041list: [ *var ]
1042list_in_list: [[ *var ]]
1043map_in_list: [ { key: *var } ]
1044embedded_mapping: [ key: *var ]
1045map: { key: *var }
1046list_in_map: { key: [*var] }
1047map_in_map: { foo: { bar: *var } }
1048EOF
1049        ));
1050    }
1051
1052    public function testYamlDirective()
1053    {
1054        $yaml = <<<'EOF'
1055%YAML 1.2
1056---
1057foo: 1
1058bar: 2
1059EOF;
1060        $this->assertEquals(['foo' => 1, 'bar' => 2], $this->parser->parse($yaml));
1061    }
1062
1063    /**
1064     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1065     * @expectedExceptionMessage Numeric keys are not supported. Quote your evaluable mapping keys instead
1066     */
1067    public function testFloatKeys()
1068    {
1069        $yaml = <<<'EOF'
1070foo:
1071    1.2: "bar"
1072    1.3: "baz"
1073EOF;
1074
1075        $this->parser->parse($yaml);
1076    }
1077
1078    /**
1079     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1080     * @expectedExceptionMessage Non-string keys are not supported. Quote your evaluable mapping keys instead
1081     */
1082    public function testBooleanKeys()
1083    {
1084        $yaml = <<<'EOF'
1085true: foo
1086false: bar
1087EOF;
1088
1089        $this->parser->parse($yaml);
1090    }
1091
1092    public function testExplicitStringCasting()
1093    {
1094        $yaml = <<<'EOF'
1095'1.2': "bar"
1096!!str 1.3: "baz"
1097
1098'true': foo
1099!!str false: bar
1100
1101!!str null: 'null'
1102'~': 'null'
1103EOF;
1104
1105        $expected = [
1106            '1.2' => 'bar',
1107            '1.3' => 'baz',
1108            'true' => 'foo',
1109            'false' => 'bar',
1110            'null' => 'null',
1111            '~' => 'null',
1112        ];
1113
1114        $this->assertEquals($expected, $this->parser->parse($yaml));
1115    }
1116
1117    /**
1118     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1119     * @expectedExceptionMessage A colon cannot be used in an unquoted mapping value
1120     */
1121    public function testColonInMappingValueException()
1122    {
1123        $yaml = <<<'EOF'
1124foo: bar: baz
1125EOF;
1126
1127        $this->parser->parse($yaml);
1128    }
1129
1130    public function testColonInMappingValueExceptionNotTriggeredByColonInComment()
1131    {
1132        $yaml = <<<'EOT'
1133foo:
1134    bar: foobar # Note: a comment after a colon
1135EOT;
1136
1137        $this->assertSame(['foo' => ['bar' => 'foobar']], $this->parser->parse($yaml));
1138    }
1139
1140    /**
1141     * @dataProvider getCommentLikeStringInScalarBlockData
1142     */
1143    public function testCommentLikeStringsAreNotStrippedInBlockScalars($yaml, $expectedParserResult)
1144    {
1145        $this->assertSame($expectedParserResult, $this->parser->parse($yaml));
1146    }
1147
1148    public function getCommentLikeStringInScalarBlockData()
1149    {
1150        $tests = [];
1151
1152        $yaml = <<<'EOT'
1153pages:
1154    -
1155        title: some title
1156        content: |
1157            # comment 1
1158            header
1159
1160                # comment 2
1161                <body>
1162                    <h1>title</h1>
1163                </body>
1164
1165            footer # comment3
1166EOT;
1167        $expected = [
1168            'pages' => [
1169                [
1170                    'title' => 'some title',
1171                    'content' => <<<'EOT'
1172# comment 1
1173header
1174
1175    # comment 2
1176    <body>
1177        <h1>title</h1>
1178    </body>
1179
1180footer # comment3
1181EOT
1182                    ,
1183                ],
1184            ],
1185        ];
1186        $tests[] = [$yaml, $expected];
1187
1188        $yaml = <<<'EOT'
1189test: |
1190    foo
1191    # bar
1192    baz
1193collection:
1194    - one: |
1195        foo
1196        # bar
1197        baz
1198    - two: |
1199        foo
1200        # bar
1201        baz
1202EOT;
1203        $expected = [
1204            'test' => <<<'EOT'
1205foo
1206# bar
1207baz
1208
1209EOT
1210            ,
1211            'collection' => [
1212                [
1213                    'one' => <<<'EOT'
1214foo
1215# bar
1216baz
1217
1218EOT
1219                    ,
1220                ],
1221                [
1222                    'two' => <<<'EOT'
1223foo
1224# bar
1225baz
1226EOT
1227                    ,
1228                ],
1229            ],
1230        ];
1231        $tests[] = [$yaml, $expected];
1232
1233        $yaml = <<<'EOT'
1234foo:
1235  bar:
1236    scalar-block: >
1237      line1
1238      line2>
1239  baz:
1240# comment
1241    foobar: ~
1242EOT;
1243        $expected = [
1244            'foo' => [
1245                'bar' => [
1246                    'scalar-block' => "line1 line2>\n",
1247                ],
1248                'baz' => [
1249                    'foobar' => null,
1250                ],
1251            ],
1252        ];
1253        $tests[] = [$yaml, $expected];
1254
1255        $yaml = <<<'EOT'
1256a:
1257    b: hello
1258#    c: |
1259#        first row
1260#        second row
1261    d: hello
1262EOT;
1263        $expected = [
1264            'a' => [
1265                'b' => 'hello',
1266                'd' => 'hello',
1267            ],
1268        ];
1269        $tests[] = [$yaml, $expected];
1270
1271        return $tests;
1272    }
1273
1274    public function testBlankLinesAreParsedAsNewLinesInFoldedBlocks()
1275    {
1276        $yaml = <<<'EOT'
1277test: >
1278    <h2>A heading</h2>
1279
1280    <ul>
1281    <li>a list</li>
1282    <li>may be a good example</li>
1283    </ul>
1284EOT;
1285
1286        $this->assertSame(
1287            [
1288                'test' => <<<'EOT'
1289<h2>A heading</h2>
1290<ul> <li>a list</li> <li>may be a good example</li> </ul>
1291EOT
1292                ,
1293            ],
1294            $this->parser->parse($yaml)
1295        );
1296    }
1297
1298    public function testAdditionallyIndentedLinesAreParsedAsNewLinesInFoldedBlocks()
1299    {
1300        $yaml = <<<'EOT'
1301test: >
1302    <h2>A heading</h2>
1303
1304    <ul>
1305      <li>a list</li>
1306      <li>may be a good example</li>
1307    </ul>
1308EOT;
1309
1310        $this->assertSame(
1311            [
1312                'test' => <<<'EOT'
1313<h2>A heading</h2>
1314<ul>
1315  <li>a list</li>
1316  <li>may be a good example</li>
1317</ul>
1318EOT
1319                ,
1320            ],
1321            $this->parser->parse($yaml)
1322        );
1323    }
1324
1325    /**
1326     * @dataProvider getBinaryData
1327     */
1328    public function testParseBinaryData($data)
1329    {
1330        $this->assertSame(['data' => 'Hello world'], $this->parser->parse($data));
1331    }
1332
1333    public function getBinaryData()
1334    {
1335        return [
1336            'enclosed with double quotes' => ['data: !!binary "SGVsbG8gd29ybGQ="'],
1337            'enclosed with single quotes' => ["data: !!binary 'SGVsbG8gd29ybGQ='"],
1338            'containing spaces' => ['data: !!binary  "SGVs bG8gd 29ybGQ="'],
1339            'in block scalar' => [
1340                <<<'EOT'
1341data: !!binary |
1342    SGVsbG8gd29ybGQ=
1343EOT
1344    ],
1345            'containing spaces in block scalar' => [
1346                <<<'EOT'
1347data: !!binary |
1348    SGVs bG8gd 29ybGQ=
1349EOT
1350    ],
1351        ];
1352    }
1353
1354    /**
1355     * @dataProvider getInvalidBinaryData
1356     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1357     */
1358    public function testParseInvalidBinaryData($data, $expectedMessage)
1359    {
1360        if (method_exists($this, 'expectException')) {
1361            $this->expectExceptionMessageRegExp($expectedMessage);
1362        } else {
1363            $this->setExpectedExceptionRegExp(ParseException::class, $expectedMessage);
1364        }
1365
1366        $this->parser->parse($data);
1367    }
1368
1369    public function getInvalidBinaryData()
1370    {
1371        return [
1372            '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 \(\d+ bytes given\)/'],
1373            'invalid characters' => ['!!binary "SGVsbG8#d29ybGQ="', '/The base64 encoded data \(.*\) contains invalid characters/'],
1374            'too many equals characters' => ['data: !!binary "SGVsbG8gd29yb==="', '/The base64 encoded data \(.*\) contains invalid characters/'],
1375            'misplaced equals character' => ['data: !!binary "SGVsbG8gd29ybG=Q"', '/The base64 encoded data \(.*\) contains invalid characters/'],
1376            'length not a multiple of four in block scalar' => [
1377                <<<'EOT'
1378data: !!binary |
1379    SGVsbG8d29ybGQ=
1380EOT
1381                ,
1382                '/The normalized base64 encoded data \(data without whitespace characters\) length must be a multiple of four \(\d+ bytes given\)/',
1383            ],
1384            'invalid characters in block scalar' => [
1385                <<<'EOT'
1386data: !!binary |
1387    SGVsbG8#d29ybGQ=
1388EOT
1389                ,
1390                '/The base64 encoded data \(.*\) contains invalid characters/',
1391            ],
1392            'too many equals characters in block scalar' => [
1393                <<<'EOT'
1394data: !!binary |
1395    SGVsbG8gd29yb===
1396EOT
1397                ,
1398                '/The base64 encoded data \(.*\) contains invalid characters/',
1399            ],
1400            'misplaced equals character in block scalar' => [
1401                <<<'EOT'
1402data: !!binary |
1403    SGVsbG8gd29ybG=Q
1404EOT
1405                ,
1406                '/The base64 encoded data \(.*\) contains invalid characters/',
1407            ],
1408        ];
1409    }
1410
1411    public function testParseDateAsMappingValue()
1412    {
1413        $yaml = <<<'EOT'
1414date: 2002-12-14
1415EOT;
1416        $expectedDate = new \DateTime();
1417        $expectedDate->setTimeZone(new \DateTimeZone('UTC'));
1418        $expectedDate->setDate(2002, 12, 14);
1419        $expectedDate->setTime(0, 0, 0);
1420
1421        $this->assertEquals(['date' => $expectedDate], $this->parser->parse($yaml, Yaml::PARSE_DATETIME));
1422    }
1423
1424    /**
1425     * @param $lineNumber
1426     * @param $yaml
1427     * @dataProvider parserThrowsExceptionWithCorrectLineNumberProvider
1428     */
1429    public function testParserThrowsExceptionWithCorrectLineNumber($lineNumber, $yaml)
1430    {
1431        if (method_exists($this, 'expectException')) {
1432            $this->expectException('\Symfony\Component\Yaml\Exception\ParseException');
1433            $this->expectExceptionMessage(sprintf('Unexpected characters near "," at line %d (near "bar: "123",").', $lineNumber));
1434        } else {
1435            $this->setExpectedException('\Symfony\Component\Yaml\Exception\ParseException', sprintf('Unexpected characters near "," at line %d (near "bar: "123",").', $lineNumber));
1436        }
1437
1438        $this->parser->parse($yaml);
1439    }
1440
1441    public function parserThrowsExceptionWithCorrectLineNumberProvider()
1442    {
1443        return [
1444            [
1445                4,
1446                <<<'YAML'
1447foo:
1448    -
1449        # bar
1450        bar: "123",
1451YAML
1452            ],
1453            [
1454                5,
1455                <<<'YAML'
1456foo:
1457    -
1458        # bar
1459        # bar
1460        bar: "123",
1461YAML
1462            ],
1463            [
1464                8,
1465                <<<'YAML'
1466foo:
1467    -
1468        # foobar
1469        baz: 123
1470bar:
1471    -
1472        # bar
1473        bar: "123",
1474YAML
1475            ],
1476            [
1477                10,
1478                <<<'YAML'
1479foo:
1480    -
1481        # foobar
1482        # foobar
1483        baz: 123
1484bar:
1485    -
1486        # bar
1487        # bar
1488        bar: "123",
1489YAML
1490            ],
1491        ];
1492    }
1493
1494    public function testParseMultiLineQuotedString()
1495    {
1496        $yaml = <<<EOT
1497foo: "bar
1498  baz
1499   foobar
1500foo"
1501bar: baz
1502EOT;
1503
1504        $this->assertSame(['foo' => 'bar baz foobar foo', 'bar' => 'baz'], $this->parser->parse($yaml));
1505    }
1506
1507    public function testMultiLineQuotedStringWithTrailingBackslash()
1508    {
1509        $yaml = <<<YAML
1510foobar:
1511    "foo\
1512    bar"
1513YAML;
1514
1515        $this->assertSame(['foobar' => 'foobar'], $this->parser->parse($yaml));
1516    }
1517
1518    public function testCommentCharactersInMultiLineQuotedStrings()
1519    {
1520        $yaml = <<<YAML
1521foo:
1522    foobar: 'foo
1523      #bar'
1524    bar: baz
1525YAML;
1526        $expected = [
1527            'foo' => [
1528                'foobar' => 'foo #bar',
1529                'bar' => 'baz',
1530            ],
1531        ];
1532
1533        $this->assertSame($expected, $this->parser->parse($yaml));
1534    }
1535
1536    public function testBlankLinesInQuotedMultiLineString()
1537    {
1538        $yaml = <<<YAML
1539foobar: 'foo
1540
1541    bar'
1542YAML;
1543        $expected = [
1544            'foobar' => "foo\nbar",
1545        ];
1546
1547        $this->assertSame($expected, $this->parser->parse($yaml));
1548    }
1549
1550    public function testParseMultiLineUnquotedString()
1551    {
1552        $yaml = <<<EOT
1553foo: bar
1554  baz
1555   foobar
1556  foo
1557bar: baz
1558EOT;
1559
1560        $this->assertSame(['foo' => 'bar baz foobar foo', 'bar' => 'baz'], $this->parser->parse($yaml));
1561    }
1562
1563    public function testParseMultiLineString()
1564    {
1565        $this->assertEquals("foo bar\nbaz", $this->parser->parse("foo\nbar\n\nbaz"));
1566    }
1567
1568    /**
1569     * @dataProvider multiLineDataProvider
1570     */
1571    public function testParseMultiLineMappingValue($yaml, $expected, $parseError)
1572    {
1573        $this->assertEquals($expected, $this->parser->parse($yaml));
1574    }
1575
1576    public function multiLineDataProvider()
1577    {
1578        $tests = [];
1579
1580        $yaml = <<<'EOF'
1581foo:
1582- bar:
1583    one
1584
1585    two
1586    three
1587EOF;
1588        $expected = [
1589            'foo' => [
1590                [
1591                    'bar' => "one\ntwo three",
1592                ],
1593            ],
1594        ];
1595
1596        $tests[] = [$yaml, $expected, false];
1597
1598        $yaml = <<<'EOF'
1599bar
1600"foo"
1601EOF;
1602        $expected = 'bar "foo"';
1603
1604        $tests[] = [$yaml, $expected, false];
1605
1606        $yaml = <<<'EOF'
1607bar
1608"foo
1609EOF;
1610        $expected = 'bar "foo';
1611
1612        $tests[] = [$yaml, $expected, false];
1613
1614        $yaml = <<<'EOF'
1615bar
1616
1617'foo'
1618EOF;
1619        $expected = "bar\n'foo'";
1620
1621        $tests[] = [$yaml, $expected, false];
1622
1623        $yaml = <<<'EOF'
1624bar
1625
1626foo'
1627EOF;
1628        $expected = "bar\nfoo'";
1629
1630        $tests[] = [$yaml, $expected, false];
1631
1632        return $tests;
1633    }
1634
1635    public function testTaggedInlineMapping()
1636    {
1637        $this->assertEquals(new TaggedValue('foo', ['foo' => 'bar']), $this->parser->parse('!foo {foo: bar}', Yaml::PARSE_CUSTOM_TAGS));
1638    }
1639
1640    /**
1641     * @dataProvider taggedValuesProvider
1642     */
1643    public function testCustomTagSupport($expected, $yaml)
1644    {
1645        $this->assertEquals($expected, $this->parser->parse($yaml, Yaml::PARSE_CUSTOM_TAGS));
1646    }
1647
1648    public function taggedValuesProvider()
1649    {
1650        return [
1651            'scalars' => [
1652                [
1653                    'foo' => new TaggedValue('inline', 'bar'),
1654                    'quz' => new TaggedValue('long', 'this is a long text'),
1655                ],
1656                <<<YAML
1657foo: !inline bar
1658quz: !long >
1659  this is a long
1660  text
1661YAML
1662            ],
1663            'sequences' => [
1664                [new TaggedValue('foo', ['yaml']), new TaggedValue('quz', ['bar'])],
1665                <<<YAML
1666- !foo
1667    - yaml
1668- !quz [bar]
1669YAML
1670            ],
1671            'mappings' => [
1672                new TaggedValue('foo', ['foo' => new TaggedValue('quz', ['bar']), 'quz' => new TaggedValue('foo', ['quz' => 'bar'])]),
1673                <<<YAML
1674!foo
1675foo: !quz [bar]
1676quz: !foo
1677   quz: bar
1678YAML
1679            ],
1680            'inline' => [
1681                [new TaggedValue('foo', ['foo', 'bar']), new TaggedValue('quz', ['foo' => 'bar', 'quz' => new TaggedValue('bar', ['one' => 'bar'])])],
1682                <<<YAML
1683- !foo [foo, bar]
1684- !quz {foo: bar, quz: !bar {one: bar}}
1685YAML
1686            ],
1687            'spaces-around-tag-value-in-sequence' => [
1688                [new TaggedValue('foo', 'bar')],
1689                '[ !foo bar ]',
1690            ],
1691        ];
1692    }
1693
1694    public function testNonSpecificTagSupport()
1695    {
1696        $this->assertSame('12', $this->parser->parse('! 12'));
1697    }
1698
1699    /**
1700     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1701     * @expectedExceptionMessage Tags support is not enabled. Enable the "Yaml::PARSE_CUSTOM_TAGS" flag to use "!iterator" at line 1 (near "!iterator [foo]").
1702     */
1703    public function testCustomTagsDisabled()
1704    {
1705        $this->parser->parse('!iterator [foo]');
1706    }
1707
1708    /**
1709     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1710     * @expectedExceptionMessage Tags support is not enabled. Enable the "Yaml::PARSE_CUSTOM_TAGS" flag to use "!iterator" at line 1 (near "!iterator foo").
1711     */
1712    public function testUnsupportedTagWithScalar()
1713    {
1714        $this->parser->parse('!iterator foo');
1715    }
1716
1717    /**
1718     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1719     * @expectedExceptionMessage The string "!!iterator foo" could not be parsed as it uses an unsupported built-in tag at line 1 (near "!!iterator foo").
1720     */
1721    public function testUnsupportedBuiltInTagWithScalar()
1722    {
1723        $this->parser->parse('!!iterator foo');
1724    }
1725
1726    /**
1727     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1728     * @expectedExceptionMessage The built-in tag "!!foo" is not implemented at line 1 (near "!!foo").
1729     */
1730    public function testExceptionWhenUsingUnsuportedBuiltInTags()
1731    {
1732        $this->parser->parse('!!foo');
1733    }
1734
1735    /**
1736     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1737     * @expectedExceptionMessage Complex mappings are not supported at line 1 (near "? "1"").
1738     */
1739    public function testComplexMappingThrowsParseException()
1740    {
1741        $yaml = <<<YAML
1742? "1"
1743:
1744  name: végétalien
1745YAML;
1746
1747        $this->parser->parse($yaml);
1748    }
1749
1750    /**
1751     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1752     * @expectedExceptionMessage Complex mappings are not supported at line 2 (near "? "1"").
1753     */
1754    public function testComplexMappingNestedInMappingThrowsParseException()
1755    {
1756        $yaml = <<<YAML
1757diet:
1758  ? "1"
1759  :
1760    name: végétalien
1761YAML;
1762
1763        $this->parser->parse($yaml);
1764    }
1765
1766    /**
1767     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1768     * @expectedExceptionMessage Complex mappings are not supported at line 1 (near "- ? "1"").
1769     */
1770    public function testComplexMappingNestedInSequenceThrowsParseException()
1771    {
1772        $yaml = <<<YAML
1773- ? "1"
1774  :
1775    name: végétalien
1776YAML;
1777
1778        $this->parser->parse($yaml);
1779    }
1780
1781    /**
1782     * @expectedException        \Symfony\Component\Yaml\Exception\ParseException
1783     * @expectedExceptionMessage Unable to parse at line 1 (near "[parameters]").
1784     */
1785    public function testParsingIniThrowsException()
1786    {
1787        $ini = <<<INI
1788[parameters]
1789  foo = bar
1790  bar = %foo%
1791INI;
1792
1793        $this->parser->parse($ini);
1794    }
1795
1796    private function loadTestsFromFixtureFiles($testsFile)
1797    {
1798        $parser = new Parser();
1799
1800        $tests = [];
1801        $files = $parser->parseFile(__DIR__.'/Fixtures/'.$testsFile);
1802        foreach ($files as $file) {
1803            $yamls = file_get_contents(__DIR__.'/Fixtures/'.$file.'.yml');
1804
1805            // split YAMLs documents
1806            foreach (preg_split('/^---( %YAML\:1\.0)?/m', $yamls) as $yaml) {
1807                if (!$yaml) {
1808                    continue;
1809                }
1810
1811                $test = $parser->parse($yaml);
1812                if (isset($test['todo']) && $test['todo']) {
1813                    // TODO
1814                } else {
1815                    eval('$expected = '.trim($test['php']).';');
1816
1817                    $tests[] = [var_export($expected, true), $test['yaml'], $test['test']];
1818                }
1819            }
1820        }
1821
1822        return $tests;
1823    }
1824
1825    public function testCanParseVeryLongValue()
1826    {
1827        $longStringWithSpaces = str_repeat('xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ', 20000);
1828        $trickyVal = ['x' => $longStringWithSpaces];
1829
1830        $yamlString = Yaml::dump($trickyVal);
1831        $arrayFromYaml = $this->parser->parse($yamlString);
1832
1833        $this->assertEquals($trickyVal, $arrayFromYaml);
1834    }
1835
1836    /**
1837     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1838     * @expectedExceptionMessage Reference "foo" does not exist at line 2
1839     */
1840    public function testParserCleansUpReferencesBetweenRuns()
1841    {
1842        $yaml = <<<YAML
1843foo: &foo
1844    baz: foobar
1845bar:
1846    <<: *foo
1847YAML;
1848        $this->parser->parse($yaml);
1849
1850        $yaml = <<<YAML
1851bar:
1852    <<: *foo
1853YAML;
1854        $this->parser->parse($yaml);
1855    }
1856
1857    public function testPhpConstantTagMappingKey()
1858    {
1859        $yaml = <<<YAML
1860transitions:
1861    !php/const 'Symfony\Component\Yaml\Tests\B::FOO':
1862        from:
1863            - !php/const 'Symfony\Component\Yaml\Tests\B::BAR'
1864        to: !php/const 'Symfony\Component\Yaml\Tests\B::BAZ'
1865YAML;
1866        $expected = [
1867            'transitions' => [
1868                'foo' => [
1869                    'from' => [
1870                        'bar',
1871                    ],
1872                    'to' => 'baz',
1873                ],
1874            ],
1875        ];
1876
1877        $this->assertSame($expected, $this->parser->parse($yaml, Yaml::PARSE_CONSTANT));
1878    }
1879
1880    public function testMergeKeysWhenMappingsAreParsedAsObjects()
1881    {
1882        $yaml = <<<YAML
1883foo: &FOO
1884    bar: 1
1885bar: &BAR
1886    baz: 2
1887    <<: *FOO
1888baz:
1889    baz_foo: 3
1890    <<:
1891        baz_bar: 4
1892foobar:
1893    bar: ~
1894    <<: [*FOO, *BAR]
1895YAML;
1896        $expected = (object) [
1897            'foo' => (object) [
1898                'bar' => 1,
1899            ],
1900            'bar' => (object) [
1901                'baz' => 2,
1902                'bar' => 1,
1903            ],
1904            'baz' => (object) [
1905                'baz_foo' => 3,
1906                'baz_bar' => 4,
1907            ],
1908            'foobar' => (object) [
1909                'bar' => null,
1910                'baz' => 2,
1911            ],
1912        ];
1913
1914        $this->assertEquals($expected, $this->parser->parse($yaml, Yaml::PARSE_OBJECT_FOR_MAP));
1915    }
1916
1917    public function testFilenamesAreParsedAsStringsWithoutFlag()
1918    {
1919        $file = __DIR__.'/Fixtures/index.yml';
1920
1921        $this->assertSame($file, $this->parser->parse($file));
1922    }
1923
1924    public function testParseFile()
1925    {
1926        $this->assertInternalType('array', $this->parser->parseFile(__DIR__.'/Fixtures/index.yml'));
1927    }
1928
1929    /**
1930     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1931     * @expectedExceptionMessageRegExp #^File ".+/Fixtures/nonexistent.yml" does not exist\.$#
1932     */
1933    public function testParsingNonExistentFilesThrowsException()
1934    {
1935        $this->parser->parseFile(__DIR__.'/Fixtures/nonexistent.yml');
1936    }
1937
1938    /**
1939     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
1940     * @expectedExceptionMessageRegExp #^File ".+/Fixtures/not_readable.yml" cannot be read\.$#
1941     */
1942    public function testParsingNotReadableFilesThrowsException()
1943    {
1944        if ('\\' === \DIRECTORY_SEPARATOR) {
1945            $this->markTestSkipped('chmod is not supported on Windows');
1946        }
1947
1948        if (!getenv('USER') || 'root' === getenv('USER')) {
1949            $this->markTestSkipped('This test will fail if run under superuser');
1950        }
1951
1952        $file = __DIR__.'/Fixtures/not_readable.yml';
1953        chmod($file, 0200);
1954
1955        $this->parser->parseFile($file);
1956    }
1957
1958    public function testParseReferencesOnMergeKeys()
1959    {
1960        $yaml = <<<YAML
1961mergekeyrefdef:
1962    a: foo
1963    <<: &quux
1964        b: bar
1965        c: baz
1966mergekeyderef:
1967    d: quux
1968    <<: *quux
1969YAML;
1970        $expected = [
1971            'mergekeyrefdef' => [
1972                'a' => 'foo',
1973                'b' => 'bar',
1974                'c' => 'baz',
1975            ],
1976            'mergekeyderef' => [
1977                'd' => 'quux',
1978                'b' => 'bar',
1979                'c' => 'baz',
1980            ],
1981        ];
1982
1983        $this->assertSame($expected, $this->parser->parse($yaml));
1984    }
1985
1986    public function testParseReferencesOnMergeKeysWithMappingsParsedAsObjects()
1987    {
1988        $yaml = <<<YAML
1989mergekeyrefdef:
1990    a: foo
1991    <<: &quux
1992        b: bar
1993        c: baz
1994mergekeyderef:
1995    d: quux
1996    <<: *quux
1997YAML;
1998        $expected = (object) [
1999            'mergekeyrefdef' => (object) [
2000                'a' => 'foo',
2001                'b' => 'bar',
2002                'c' => 'baz',
2003            ],
2004            'mergekeyderef' => (object) [
2005                'd' => 'quux',
2006                'b' => 'bar',
2007                'c' => 'baz',
2008            ],
2009        ];
2010
2011        $this->assertEquals($expected, $this->parser->parse($yaml, Yaml::PARSE_OBJECT_FOR_MAP));
2012    }
2013
2014    /**
2015     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
2016     * @expectedExceptionMessage Reference "foo" does not exist
2017     */
2018    public function testEvalRefException()
2019    {
2020        $yaml = <<<EOE
2021foo: { &foo { a: Steve, <<: *foo} }
2022EOE;
2023        $this->parser->parse($yaml);
2024    }
2025
2026    /**
2027     * @dataProvider circularReferenceProvider
2028     * @expectedException \Symfony\Component\Yaml\Exception\ParseException
2029     * @expectedExceptionMessage Circular reference [foo, bar, foo] detected
2030     */
2031    public function testDetectCircularReferences($yaml)
2032    {
2033        $this->parser->parse($yaml, Yaml::PARSE_CUSTOM_TAGS);
2034    }
2035
2036    public function circularReferenceProvider()
2037    {
2038        $tests = [];
2039
2040        $yaml = <<<YAML
2041foo:
2042    - &foo
2043      - &bar
2044        bar: foobar
2045        baz: *foo
2046YAML;
2047        $tests['sequence'] = [$yaml];
2048
2049        $yaml = <<<YAML
2050foo: &foo
2051    bar: &bar
2052        foobar: baz
2053        baz: *foo
2054YAML;
2055        $tests['mapping'] = [$yaml];
2056
2057        $yaml = <<<YAML
2058foo: &foo
2059    bar: &bar
2060        foobar: baz
2061        <<: *foo
2062YAML;
2063        $tests['mapping with merge key'] = [$yaml];
2064
2065        return $tests;
2066    }
2067
2068    /**
2069     * @dataProvider indentedMappingData
2070     */
2071    public function testParseIndentedMappings($yaml, $expected)
2072    {
2073        $this->assertSame($expected, $this->parser->parse($yaml));
2074    }
2075
2076    public function indentedMappingData()
2077    {
2078        $tests = [];
2079
2080        $yaml = <<<YAML
2081foo:
2082  - bar: "foobar"
2083    # A comment
2084    baz: "foobaz"
2085YAML;
2086        $expected = [
2087            'foo' => [
2088                [
2089                    'bar' => 'foobar',
2090                    'baz' => 'foobaz',
2091                ],
2092            ],
2093        ];
2094        $tests['comment line is first line in indented block'] = [$yaml, $expected];
2095
2096        $yaml = <<<YAML
2097foo:
2098    - bar:
2099        # comment
2100        baz: [1, 2, 3]
2101YAML;
2102        $expected = [
2103            'foo' => [
2104                [
2105                    'bar' => [
2106                        'baz' => [1, 2, 3],
2107                    ],
2108                ],
2109            ],
2110        ];
2111        $tests['mapping value on new line starting with a comment line'] = [$yaml, $expected];
2112
2113        $yaml = <<<YAML
2114foo:
2115  -
2116    bar: foobar
2117YAML;
2118        $expected = [
2119            'foo' => [
2120                [
2121                    'bar' => 'foobar',
2122                ],
2123            ],
2124        ];
2125        $tests['mapping in sequence starting on a new line'] = [$yaml, $expected];
2126
2127        $yaml = <<<YAML
2128foo:
2129
2130    bar: baz
2131YAML;
2132        $expected = [
2133            'foo' => [
2134                'bar' => 'baz',
2135            ],
2136        ];
2137        $tests['blank line at the beginning of an indented mapping value'] = [$yaml, $expected];
2138
2139        return $tests;
2140    }
2141}
2142
2143class B
2144{
2145    public $b = 'foo';
2146
2147    const FOO = 'foo';
2148    const BAR = 'bar';
2149    const BAZ = 'baz';
2150}
2151