# YAML Test Matrix

--- &test-SR86
  Title: Anchor plus Alias
  Tags: [ alias, error ]

YAML

key1: &a value
key2: &b *a

Expected Events

+STR
+DOC
+MAP
=VAL :key1
=VAL &a :value
=VAL :key2

Expected JSON



c-libfyaml-event

 invalid_correct
stdin:2:11: error: unexpected alias
key2: &b *a
          ^
+STR
+DOC
+MAP
=VAL :key1
=VAL &a :value
=VAL :key2

c-libfyaml-json

 invalid_correct
stdin:2:11: error: unexpected alias
key2: &b *a
          ^

c-libyaml-event

 invalid_correct
Parse error: did not find expected key
+STR
+DOC
+MAP
=VAL :key1
=VAL &a :value
=VAL :key2
=VAL &b :

cpp-yamlcpp-event

 invalid_correct
Exception:
yaml-cpp: error at line 2, column 10: end of map not found
+STR
+DOC
+MAP
=VAL :key1
=VAL &1 :value
=VAL :key2
=VAL &2 :

dotnet-yamldotnet-event

 invalid_correct
Unhandled exception. YamlDotNet.Core.SemanticErrorException: (Line: 2, Col: 10, Idx: 24) - (Line: 2, Col: 12, Idx: 26): While parsing a node, did not find expected token.
   at YamlDotNet.Core.Parser.ParseNode(Boolean isBlock, Boolean isIndentlessSequence)
   at YamlDotNet.Core.Parser.ParseBlockMappingValue()
   at YamlDotNet.Core.Parser.StateMachine()
   at YamlDotNet.Core.Parser.MoveNext()
   at Program.ConvertToLibYamlStyleAnnotatedEventStream(TextReader textReader, TextWriter textWriter)
   at Program.Main(String[] commandLineArguments)
Aborted (core dumped)
+STR
+DOC
+MAP
=VAL :key1
=VAL &a :value
=VAL :key2

dotnet-yamldotnet-json

 invalid_correct
Unhandled exception. YamlDotNet.Core.SemanticErrorException: (Line: 2, Col: 10, Idx: 24) - (Line: 2, Col: 12, Idx: 26): While parsing a node, did not find expected token.
   at YamlDotNet.Core.Parser.ParseNode(Boolean isBlock, Boolean isIndentlessSequence)
   at YamlDotNet.Core.Parser.ParseBlockMappingValue()
   at YamlDotNet.Core.Parser.StateMachine()
   at YamlDotNet.Core.Parser.MoveNext()
   at YamlDotNet.Core.ParserExtensions.Allow[T](IParser parser)
   at YamlDotNet.Serialization.NodeDeserializers.ScalarNodeDeserializer.YamlDotNet.Serialization.INodeDeserializer.Deserialize(IParser parser, Type expectedType, Func`3 nestedObjectDeserializer, Object& value)
   at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.ValueDeserializers.AliasValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.<>c__DisplayClass3_0.<DeserializeValue>b__0(IParser r, Type t)
   at YamlDotNet.Serialization.NodeDeserializers.DictionaryNodeDeserializer.DeserializeHelper(Type tKey, Type tValue, IParser parser, Func`3 nestedObjectDeserializer, IDictionary result)
   at YamlDotNet.Serialization.NodeDeserializers.DictionaryNodeDeserializer.YamlDotNet.Serialization.INodeDeserializer.Deserialize(IParser parser, Type expectedType, Func`3 nestedObjectDeserializer, Object& value)
   at YamlDotNet.Serialization.ValueDeserializers.NodeValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   at YamlDotNet.Serialization.ValueDeserializers.AliasValueDeserializer.DeserializeValue(IParser parser, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
   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 = 20, posCharOffset = 20, posLine = 2, posColumn = 5} (Lexical error near " &b *a")
+STR
+DOC
+MAP
=VAL :key1
=VAL &a :value
=VAL :key2
=VAL :

hs-hsyaml-json

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

java-snakeyaml-event

 invalid_correct
Exception in thread "main" while parsing a block mapping
 in 'reader', line 1, column 1:
    key1: &a value
    ^
expected <block end>, but found '<alias>'
 in 'reader', line 2, column 10:
    key2: &b *a
             ^

	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:572)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)
	at org.yaml.snakeyaml.Yaml$3.hasNext(Yaml.java:654)
	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" while parsing a block mapping
 in 'reader', line 1, column 1:
    key1: &a value
    ^
expected <block end>, but found '<alias>'
 in 'reader', line 2, column 10:
    key2: &b *a
             ^

	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:572)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)
	at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:148)
	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:235)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:162)
	at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:95)
	at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:134)
	at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:494)
	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/js-yaml/loader.js:173
  throw generateError(state, message);
  ^
YAMLException: alias node should not have any properties at line 3, column 1:
    
    ^
    at generateError (/node/node_modules/js-yaml/lib/js-yaml/loader.js:167:10)
    at throwError (/node/node_modules/js-yaml/lib/js-yaml/loader.js:173:9)
    at composeNode (/node/node_modules/js-yaml/lib/js-yaml/loader.js:1372:13)
    at readBlockMapping (/node/node_modules/js-yaml/lib/js-yaml/loader.js:1089:11)
    at composeNode (/node/node_modules/js-yaml/lib/js-yaml/loader.js:1359:12)
    at readDocument (/node/node_modules/js-yaml/lib/js-yaml/loader.js:1519:3)
    at loadDocuments (/node/node_modules/js-yaml/lib/js-yaml/loader.js:1575:5)
    at Object.loadAll (/node/node_modules/js-yaml/lib/js-yaml/loader.js:1583:19)
    at Object.<anonymous> (/yaml/bin/js-jsyaml-json:7:13)
    at Module._compile (internal/modules/cjs/loader.js:778:30)

js-yaml-event

 invalid_correct
An alias node must not specify any properties
+STR
+DOC
+MAP
=VAL :key1
=VAL &a :value
=VAL :key2

js-yaml-json

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

YAMLSemanticError: An alias node must not specify any properties
    at resolveNode (/node/node_modules/yaml/dist/resolveSeq-4a68b39b.js:1580:21)
    at resolveBlockMapItems (/node/node_modules/yaml/dist/resolveSeq-4a68b39b.js:1777:38)
    at Object.resolveMap [as resolve] (/node/node_modules/yaml/dist/resolveSeq-4a68b39b.js:1612:79)
    at resolveByTagName (/node/node_modules/yaml/dist/resolveSeq-4a68b39b.js:1384:25)
    at resolveTag (/node/node_modules/yaml/dist/resolveSeq-4a68b39b.js:1414:17)
    at resolveNodeValue (/node/node_modules/yaml/dist/resolveSeq-4a68b39b.js:1535:23)
    at Object.resolveNode (/node/node_modules/yaml/dist/resolveSeq-4a68b39b.js:1583:15)
    at parseContents (/node/node_modules/yaml/dist/Document-2cf6b08c.js:357:30)
    at Document.parse (/node/node_modules/yaml/dist/Document-2cf6b08c.js:615:5)
    at Object.parseAllDocuments (/node/node_modules/yaml/dist/index.js:34:9)

lua-lyaml-json

 invalid_correct
luajit: 2:7: did not find expected key
stack traceback:
	[C]: in function 'error'
	/usr/local/share/lua/5.1/lyaml/init.lua:291: in function 'error'
	/usr/local/share/lua/5.1/lyaml/init.lua:310: in function 'parse'
	/usr/local/share/lua/5.1/lyaml/init.lua:428: in function 'load_node'
	/usr/local/share/lua/5.1/lyaml/init.lua:325: in function 'load_node'
	/usr/local/share/lua/5.1/lyaml/init.lua:482: in function 'load'
	/yaml/bin/lua-lyaml-json:6: in main chunk
	[C]: at 0x5654e1d11f97

nim-nimyaml-event

 invalid_correct
/buildutils/nimyaml_event.nim(8) nimyaml_event
/tmp/NimYAML-0.13.1/yaml/stream.nim(223) finished
Error: unhandled exception: Alias may not have anchor or tag [YamlStreamError]
+STR
+DOC
+MAP
=VAL :key1
=VAL &a :value
=VAL :key2

perl-pp-event

 invalid_correct
Line      : 2
Column    : 12
Message   : Parse error: Alias not allowed in this context
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 705
YAML      : ""
  at /yaml/bin/perl-pp-event line 25.
+STR
+DOC
+MAP
=VAL :key1
=VAL &a :value
=VAL :key2

perl-pp-json

 invalid_correct
Line      : 2
Column    : 12
Message   : Parse error: Alias not allowed in this context
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 705
YAML      : ""
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 92.

perl-pp-perl

 invalid_correct
Line      : 2
Column    : 12
Message   : Parse error: Alias not allowed in this context
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 705
YAML      : ""
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 92.

perl-pplibyaml-event

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

    did not find expected key

was found at , line: 2, column: 10
while parsing a block mapping at line: 1, column: 1

perl-pplibyaml-json

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

    did not find expected key

was found at , line: 2, column: 10
while parsing a block mapping at line: 1, column: 1

perl-pplibyaml-perl

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

    did not find expected key

was found at , line: 2, column: 10
while parsing a block mapping at line: 1, column: 1

perl-syck-json

 invalid_correct
Segmentation fault (core dumped)

perl-syck-perl

 invalid_correct
Segmentation fault (core dumped)

perl-tiny-json

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

perl-tiny-perl

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

perl-xs-json

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

    did not find expected key

was found at document: 1, line: 2, column: 10
while parsing a block mapping at line: 1, column: 1

perl-xs-perl

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

    did not find expected key

was found at document: 1, line: 2, column: 10
while parsing a block mapping at line: 1, column: 1

perl-yaml-json

 invalid_correct
YAML Error: Can't define both an anchor and an alias
   Code: YAML_PARSE_ERR_ANCHOR_ALIAS
   Line: 2
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 249.

perl-yaml-perl

 invalid_correct
YAML Error: Can't define both an anchor and an alias
   Code: YAML_PARSE_ERR_ANCHOR_ALIAS
   Line: 2
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 249.

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 439, in parse_block_mapping_key
    "expected <block end>, but found %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a block mapping
  in "<unicode string>", line 1, column 1:
    key1: &a value
    ^
expected <block end>, but found '<alias>'
  in "<unicode string>", line 2, column 10:
    key2: &b *a
             ^
+STR
+DOC
+MAP
=VAL :key1
=VAL &a :value
=VAL :key2
=VAL &b :

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 55, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  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 439, in parse_block_mapping_key
    "expected <block end>, but found %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a block mapping
  in "<unicode string>", line 1, column 1:
    key1: &a value
    ^
expected <block end>, but found '<alias>'
  in "<unicode string>", line 2, column 10:
    key2: &b *a
             ^

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 55, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  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 439, in parse_block_mapping_key
    "expected <block end>, but found %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a block mapping
  in "<unicode string>", line 1, column 1:
    key1: &a value
    ^
expected <block end>, but found '<alias>'
  in "<unicode string>", line 2, column 10:
    key2: &b *a
             ^

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 589, in parse_block_mapping_key
    token.start_mark,
ruamel.yaml.parser.ParserError: while parsing a block mapping
  in "<unicode string>", line 1, column 1:
    key1: &a value
    ^ (line: 1)
expected <block end>, but found '<alias>'
  in "<unicode string>", line 2, column 10:
    key2: &b *a
             ^ (line: 2)
+STR
+DOC
+MAP
=VAL :key1
=VAL &a :value
=VAL :key2
=VAL &b :

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 101, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 138, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 211, in compose_mapping_node
    while not self.parser.check_event(MappingEndEvent):
  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 589, in parse_block_mapping_key
    token.start_mark,
ruamel.yaml.parser.ParserError: while parsing a block mapping
  in "<unicode string>", line 1, column 1:
    key1: &a value
    ^ (line: 1)
expected <block end>, but found '<alias>'
  in "<unicode string>", line 2, column 10:
    key2: &b *a
             ^ (line: 2)

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 101, in compose_document
    node = self.compose_node(None, None)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 138, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 211, in compose_mapping_node
    while not self.parser.check_event(MappingEndEvent):
  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 589, in parse_block_mapping_key
    token.start_mark,
ruamel.yaml.parser.ParserError: while parsing a block mapping
  in "<unicode string>", line 1, column 1:
    key1: &a value
    ^ (line: 1)
expected <block end>, but found '<alias>'
  in "<unicode string>", line 2, column 10:
    key2: &b *a
             ^ (line: 2)

ruby-psych-json

 invalid_correct
/usr/lib/ruby/2.5.0/psych.rb:405:in `parse': (<unknown>): did not find expected key while parsing a block mapping at line 1 column 1 (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>'