# YAML Test Matrix

--- &test-CXX2
  Title: Mapping with anchor on document start line
  Tags: [ anchor, error, header, mapping ]

YAML

--- &anchor a: b

Expected Events

+STR
+DOC ---

Expected JSON



perl-pp-event

 invalid_incorrect
+STR
+DOC ---
+MAP
=VAL &anchor :a
=VAL :b
-MAP
-DOC
-STR

perl-pp-json

 invalid_incorrect
{
   "a" : "b"
}

perl-pp-perl

 invalid_incorrect
{
  'a' => 'b'
}

perl-syck-json

 invalid_incorrect
{
   "a" : "b"
}

perl-syck-perl

 invalid_incorrect
{
  'a' => 'b'
}

perl-yaml-json

 invalid_incorrect
"a: b"

perl-yaml-perl

 invalid_incorrect
'a: b'

c-libfyaml-event

 invalid_correct
stdin:1:14: error: invalid mapping in plain multiline
--- &anchor a: b
             ^
+STR
+DOC ---
=VAL &anchor :a
-DOC

c-libfyaml-json

 invalid_correct
stdin:1:14: error: invalid mapping in plain multiline
--- &anchor a: b
             ^
"a"

c-libyaml-event

 invalid_correct
Parse error: mapping values are not allowed in this context
+STR
+DOC ---
=VAL &anchor :a

cpp-yamlcpp-event

 invalid_correct
Exception:
yaml-cpp: error at line 1, column 14: illegal map value
+STR
+DOC
=VAL &1 :a
-DOC

dotnet-yamldotnet-event

 invalid_correct
Unhandled exception. YamlDotNet.Core.SemanticErrorException: (Line: 1, Col: 14, Idx: 13) - (Line: 1, Col: 14, Idx: 13): While scanning a plain scalar value, found invalid mapping.
   at YamlDotNet.Core.Parser.ParseNode(Boolean isBlock, Boolean isIndentlessSequence)
   at YamlDotNet.Core.Parser.ParseDocumentContent()
   at YamlDotNet.Core.Parser.StateMachine()
   at YamlDotNet.Core.Parser.MoveNext()
   at YamlDotNet.RepresentationModel.LibYamlEventStream.WriteTo(TextWriter textWriter)
   at Program.Main(String[] commandLineArguments)
Aborted (core dumped)
+STR
+DOC ---

dotnet-yamldotnet-json

 invalid_correct
Unhandled exception. YamlDotNet.Core.SemanticErrorException: (Line: 1, Col: 14, Idx: 13) - (Line: 1, Col: 14, Idx: 13): While scanning a plain scalar value, found invalid mapping.
   at YamlDotNet.Core.Parser.ParseNode(Boolean isBlock, Boolean isIndentlessSequence)
   at YamlDotNet.Core.Parser.ParseDocumentContent()
   at YamlDotNet.Core.Parser.StateMachine()
   at YamlDotNet.Core.Parser.MoveNext()
   at YamlDotNet.Core.ParserExtensions.TryConsume[T](IParser parser, T& event)
   at YamlDotNet.Serialization.Deserializer.Deserialize(IParser parser, Type type)
   at YamlDotNet.Serialization.Deserializer.Deserialize(TextReader input, Type type)
   at YamlDotNet.Serialization.Deserializer.Deserialize(TextReader input)
   at Program.Main(String[] commandLineArguments)
Aborted (core dumped)

hs-hsyaml-event

 invalid_correct
Parsing error near byte offset Pos {posByteOffset = 3, posCharOffset = 3, posLine = 1, posColumn = 3} (Lexical error near " &anchor a: b")
+STR
+DOC ---
=VAL :

hs-hsyaml-json

 invalid_correct
hsyaml-parser: user error (Lexical error near " &anchor a: b")

java-snakeyaml-event

 invalid_correct
Exception in thread "main" mapping values are not allowed here
 in 'reader', line 1, column 14:
    --- &anchor a: b
                 ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:890)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:379)
	at org.yaml.snakeyaml.scanner.ScannerImpl.peekToken(ScannerImpl.java:271)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseDocumentEnd.produce(ParserImpl.java:286)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:165)
	at org.yaml.snakeyaml.Yaml$3.hasNext(Yaml.java:677)
	at org.yaml.editor.Snake2Events.yamlToEvents(Snake2Events.java:111)
	at org.yaml.editor.Snake2Events.main(Snake2Events.java:119)

java-snakeyaml-json

 invalid_correct
Exception in thread "main" mapping values are not allowed here
 in 'reader', line 1, column 14:
    --- &anchor a: b
                 ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:890)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:379)
	at org.yaml.snakeyaml.scanner.ScannerImpl.peekToken(ScannerImpl.java:271)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseDocumentEnd.produce(ParserImpl.java:286)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:165)
	at org.yaml.snakeyaml.comments.CommentEventsCollector$1.peek(CommentEventsCollector.java:59)
	at org.yaml.snakeyaml.comments.CommentEventsCollector$1.peek(CommentEventsCollector.java:45)
	at org.yaml.snakeyaml.comments.CommentEventsCollector.collectEvents(CommentEventsCollector.java:140)
	at org.yaml.snakeyaml.comments.CommentEventsCollector.collectEvents(CommentEventsCollector.java:119)
	at org.yaml.snakeyaml.composer.Composer.composeScalarNode(Composer.java:214)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:184)
	at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:115)
	at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:135)
	at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:514)
	at org.yaml.editor.Snake2Json.yamlToJson(Snake2Json.java:18)
	at org.yaml.editor.Snake2Json.main(Snake2Json.java:25)

js-jsyaml-json

 invalid_correct
/node/node_modules/js-yaml/lib/loader.js:187
  throw generateError(state, message);
  ^
YAMLException: end of the stream or a document separator is expected (1:14)

 1 | --- &anchor a: b
------------------^
    at generateError (/node/node_modules/js-yaml/lib/loader.js:183:10)
    at throwError (/node/node_modules/js-yaml/lib/loader.js:187:9)
    at readDocument (/node/node_modules/js-yaml/lib/loader.js:1645:5)
    at loadDocuments (/node/node_modules/js-yaml/lib/loader.js:1688:5)
    at Object.loadAll (/node/node_modules/js-yaml/lib/loader.js:1701:19)
    at Object.<anonymous> (/yaml/bin/js-jsyaml-json:7:13)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)

js-yaml-event

 invalid_correct
Block collection cannot start on same line with directives-end marker at line 1, column 5:

--- &anchor a: b
    ^
+STR
+DOC ---

js-yaml-json

 invalid_correct
/yaml/bin/js-yaml-json:8
  if (doc.errors.length !== 0) throw doc.errors[0]
                               ^

YAMLParseError: Block collection cannot start on same line with directives-end marker at line 1, column 5:

--- &anchor a: b
    ^

    at Composer.onError (/node/node_modules/yaml/dist/compose/composer.js:71:34)
    at Object.composeDoc (/node/node_modules/yaml/dist/compose/compose-doc.js:28:13)
    at Composer.next (/node/node_modules/yaml/dist/compose/composer.js:152:40)
    at next (<anonymous>)
    at Composer.compose (/node/node_modules/yaml/dist/compose/composer.js:134:25)
    at compose.next (<anonymous>)
    at Function.from (<anonymous>)
    at Object.parseAllDocuments (/node/node_modules/yaml/dist/public-api.js:30:24)
    at Object.<anonymous> (/yaml/bin/js-yaml-json:7:19)
    at Module._compile (internal/modules/cjs/loader.js:778:30)

lua-lyaml-json

 invalid_correct
luajit: 1:5: mapping values are not allowed in this context
stack traceback:
	[C]: in function 'error'
	/usr/local/share/lua/5.1/lyaml/init.lua:306: in function 'error'
	/usr/local/share/lua/5.1/lyaml/init.lua:325: in function 'parse'
	/usr/local/share/lua/5.1/lyaml/init.lua:502: in function 'load'
	/yaml/bin/lua-lyaml-json:6: in main chunk
	[C]: at 0x55e95638ff97

nim-nimyaml-event

 invalid_correct
/tmp/NimYAML-0.16.0/yaml/stream.nim(134) nimyaml_event
/tmp/NimYAML-0.16.0/yaml/stream.nim(106) next
Error: unhandled exception: Unexpected token (expected document end): MapValueInd [YamlStreamError]
+STR
+DOC ---
=VAL &anchor :a

perl-pplibyaml-event

 invalid_correct
YAML::PP::LibYAML Error: The problem:

    mapping values are not allowed in this context

was found at , line: 1, column: 14

perl-pplibyaml-json

 invalid_correct
YAML::PP::LibYAML Error: The problem:

    mapping values are not allowed in this context

was found at , line: 1, column: 14

perl-pplibyaml-perl

 invalid_correct
YAML::PP::LibYAML Error: The problem:

    mapping values are not allowed in this context

was found at , line: 1, column: 14

perl-refparser-event

 invalid_correct
Parser finished before end of input at /perl5/lib/perl5/YAML/Parser.pm line 4047, <> line 1.

perl-tiny-json

 invalid_correct
YAML::Tiny does not support a feature in line '&anchor a: b' at /yaml/bin/perl-tiny-json line 12.

perl-tiny-perl

 invalid_correct
YAML::Tiny does not support a feature in line '&anchor a: b' at /yaml/bin/perl-tiny-perl line 15.

perl-xs-json

 invalid_correct
YAML::XS::Load Error: The problem:

    mapping values are not allowed in this context

was found at document: 1, line: 1, column: 14

perl-xs-perl

 invalid_correct
YAML::XS::Load Error: The problem:

    mapping values are not allowed in this context

was found at document: 1, line: 1, column: 14

py-pyyaml-event

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-pyyaml-event", line 7, in <module>
    for event in yaml.parse(sys.stdin.read()):
  File "/python/lib/python3.7/site-packages/yaml/__init__.py", line 75, in parse
    while loader.check_event():
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 193, in parse_document_end
    token = self.peek_token()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 129, in peek_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 223, in fetch_more_tokens
    return self.fetch_value()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 579, in fetch_value
    self.get_mark())
yaml.scanner.ScannerError: mapping values are not allowed here
  in "<unicode string>", line 1, column 14:
    --- &anchor a: b
                 ^
+STR
+DOC ---
=VAL &anchor :a

py-pyyaml-json

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-pyyaml-json", line 19, in <module>
    for doc in yaml.load_all(sys.stdin.read(), Loader=yaml.FullLoader):
  File "/python/lib/python3.7/site-packages/yaml/__init__.py", line 130, in load_all
    yield loader.get_data()
  File "/python/lib/python3.7/site-packages/yaml/constructor.py", line 45, in get_data
    return self.construct_document(self.get_node())
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 58, in compose_document
    self.get_event()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 118, in get_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 193, in parse_document_end
    token = self.peek_token()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 129, in peek_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 223, in fetch_more_tokens
    return self.fetch_value()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 579, in fetch_value
    self.get_mark())
yaml.scanner.ScannerError: mapping values are not allowed here
  in "<unicode string>", line 1, column 14:
    --- &anchor a: b
                 ^

py-pyyaml-py

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-pyyaml-py", line 36, in <module>
    for doc in yaml.load_all(sys.stdin.read(), Loader=yaml.FullLoader):
  File "/python/lib/python3.7/site-packages/yaml/__init__.py", line 130, in load_all
    yield loader.get_data()
  File "/python/lib/python3.7/site-packages/yaml/constructor.py", line 45, in get_data
    return self.construct_document(self.get_node())
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 58, in compose_document
    self.get_event()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 118, in get_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/yaml/parser.py", line 193, in parse_document_end
    token = self.peek_token()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 129, in peek_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 223, in fetch_more_tokens
    return self.fetch_value()
  File "/python/lib/python3.7/site-packages/yaml/scanner.py", line 579, in fetch_value
    self.get_mark())
yaml.scanner.ScannerError: mapping values are not allowed here
  in "<unicode string>", line 1, column 14:
    --- &anchor a: b
                 ^

py-ruamel-event

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-event", line 7, in <module>
    for event in ruamel.yaml.parse(sys.stdin.read()):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/main.py", line 907, in parse
    while loader._parser.check_event():
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 140, in check_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 241, in parse_document_end
    token = self.scanner.peek_token()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 183, in peek_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 283, in fetch_more_tokens
    return self.fetch_value()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 656, in fetch_value
    self.reader.get_mark(),
ruamel.yaml.scanner.ScannerError: mapping values are not allowed here
  in "<unicode string>", line 1, column 14:
    --- &anchor a: b
                 ^ (line: 1)
+STR
+DOC ---
=VAL &anchor :a

py-ruamel-json

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-json", line 19, in <module>
    for doc in ruamel.yaml.load_all(sys.stdin.read(), Loader=ruamel.yaml.Loader):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/main.py", line 976, in load_all
    yield loader._constructor.get_data()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/constructor.py", line 106, in get_data
    return self.construct_document(self.composer.get_node())
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 68, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 104, in compose_document
    self.parser.get_event()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 162, in get_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 241, in parse_document_end
    token = self.scanner.peek_token()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 183, in peek_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 283, in fetch_more_tokens
    return self.fetch_value()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 656, in fetch_value
    self.reader.get_mark(),
ruamel.yaml.scanner.ScannerError: mapping values are not allowed here
  in "<unicode string>", line 1, column 14:
    --- &anchor a: b
                 ^ (line: 1)

py-ruamel-py

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-py", line 36, in <module>
    for doc in ruamel.yaml.load_all(sys.stdin.read(), Loader=ruamel.yaml.Loader):
  File "/python/lib/python3.7/site-packages/ruamel/yaml/main.py", line 976, in load_all
    yield loader._constructor.get_data()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/constructor.py", line 106, in get_data
    return self.construct_document(self.composer.get_node())
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 68, in get_node
    return self.compose_document()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 104, in compose_document
    self.parser.get_event()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 162, in get_event
    self.current_event = self.state()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/parser.py", line 241, in parse_document_end
    token = self.scanner.peek_token()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 183, in peek_token
    self.fetch_more_tokens()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 283, in fetch_more_tokens
    return self.fetch_value()
  File "/python/lib/python3.7/site-packages/ruamel/yaml/scanner.py", line 656, in fetch_value
    self.reader.get_mark(),
ruamel.yaml.scanner.ScannerError: mapping values are not allowed here
  in "<unicode string>", line 1, column 14:
    --- &anchor a: b
                 ^ (line: 1)

ruby-psych-json

 invalid_correct
/usr/lib/ruby/2.5.0/psych.rb:405:in `parse': (<unknown>): mapping values are not allowed in this context at line 1 column 14 (Psych::SyntaxError)
	from /usr/lib/ruby/2.5.0/psych.rb:405:in `parse_stream'
	from /usr/lib/ruby/2.5.0/psych.rb:488:in `load_stream'
	from /yaml/bin/ruby-psych-json:6:in `<main>'