# YAML Test Matrix

--- &test-ZVH3
  Title: Wrong indented sequence item
  Tags: [ error, indent, sequence ]

YAML

- key: value
 - item1

Expected Events

+STR
+DOC
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP

Expected JSON



c-libfyaml-event

 invalid_correct
stdin:2:2: error: wrongly indented sequence item
 - item1
 ^
+STR
+DOC
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP

c-libfyaml-json

 invalid_correct
stdin:2:2: error: wrongly indented sequence item
 - item1
 ^

c-libyaml-event

 invalid_correct
Parse error: did not find expected '-' indicator
+STR
+DOC
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP

cpp-yamlcpp-event

 invalid_correct
Exception:
yaml-cpp: error at line 2, column 2: end of sequence not found
+STR
+DOC
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP

dotnet-yamldotnet-event

 invalid_correct
Unhandled exception. YamlDotNet.Core.SemanticErrorException: (Line: 2, Col: 2, Idx: 14) - (Line: 2, Col: 2, Idx: 14): While parsing a block collection, did not find expected '-' indicator.
   at YamlDotNet.Core.Parser.ParseBlockSequenceEntry(Boolean isFirst)
   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
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP

dotnet-yamldotnet-json

 invalid_correct
Unhandled exception. YamlDotNet.Core.SemanticErrorException: (Line: 2, Col: 2, Idx: 14) - (Line: 2, Col: 2, Idx: 14): While parsing a block collection, did not find expected '-' indicator.
   at YamlDotNet.Core.Parser.ParseBlockSequenceEntry(Boolean isFirst)
   at YamlDotNet.Core.Parser.StateMachine()
   at YamlDotNet.Core.Parser.MoveNext()
   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.ValueDeserializers.NodeValueDeserializer.<>c__DisplayClass3_0.<DeserializeValue>b__0(IParser r, Type t)
   at YamlDotNet.Serialization.NodeDeserializers.CollectionNodeDeserializer.DeserializeHelper(Type tItem, IParser parser, Func`3 nestedObjectDeserializer, IList result, Boolean canUpdate)
   at YamlDotNet.Serialization.NodeDeserializers.CollectionNodeDeserializer.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 = 13, posCharOffset = 13, posLine = 2, posColumn = 0} (Unexpected ' ')
+STR
+DOC
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP
-SEQ
-DOC

hs-hsyaml-json

 invalid_correct
hsyaml-parser: user error (Unexpected ' ')

java-snakeyaml-event

 invalid_correct
Exception in thread "main" while parsing a block collection
 in 'reader', line 1, column 1:
    - key: value
    ^
expected <block end>, but found '<block sequence start>'
 in 'reader', line 2, column 2:
     - item1
     ^

	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockSequenceEntryKey.produce(ParserImpl.java:549)
	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" while parsing a block collection
 in 'reader', line 1, column 1:
    - key: value
    ^
expected <block end>, but found '<block sequence start>'
 in 'reader', line 2, column 2:
     - item1
     ^

	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockSequenceEntryKey.produce(ParserImpl.java:549)
	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.composeMappingNode(Composer.java:293)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:188)
	at org.yaml.snakeyaml.composer.Composer.composeSequenceNode(Composer.java:245)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:186)
	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: bad indentation of a sequence entry (2:2)

 1 | - key: value
 2 |  - item1
------^
    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 readBlockSequence (/node/node_modules/js-yaml/lib/loader.js:1015:7)
    at composeNode (/node/node_modules/js-yaml/lib/loader.js:1440:12)
    at readDocument (/node/node_modules/js-yaml/lib/loader.js:1625:3)
    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)

js-yaml-event

 invalid_correct
All sequence items must start at the same column at line 2, column 2:

- key: value
 - item1
 ^
+STR
+DOC
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP

js-yaml-json

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

YAMLParseError: All sequence items must start at the same column at line 2, column 2:

- key: value
 - item1
 ^

    at Composer.onError (/node/node_modules/yaml/dist/compose/composer.js:71:34)
    at Object.resolveBlockSeq (/node/node_modules/yaml/dist/compose/resolve-block-seq.js:21:21)
    at Object.composeCollection (/node/node_modules/yaml/dist/compose/compose-collection.js:17:36)
    at Object.composeNode (/node/node_modules/yaml/dist/compose/compose-node.js:30:38)
    at Object.composeDoc (/node/node_modules/yaml/dist/compose/compose-doc.js:31:23)
    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>)

lua-lyaml-json

 invalid_correct
luajit: 2:2: did not find expected '-' indicator
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:443: in function 'load_node'
	/usr/local/share/lua/5.1/lyaml/init.lua:393: in function 'load_node'
	/usr/local/share/lua/5.1/lyaml/init.lua:497: in function 'load'
	/yaml/bin/lua-lyaml-json:6: in main chunk
	[C]: at 0x55b62eb73f97

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: Invalid indentation: got 1, expected 0 [YamlStreamError]
+STR
+DOC
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP

perl-pp-event

 invalid_correct
Line      : 2
Column    : 2
Message   : Expected SEQ
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 239
YAML      : "- item1\n"
  at /yaml/bin/perl-pp-event line 25.
+STR
+DOC
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP

perl-pp-json

 invalid_correct
Line      : 2
Column    : 2
Message   : Expected SEQ
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 239
YAML      : "- item1\n"
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pp-perl

 invalid_correct
Line      : 2
Column    : 2
Message   : Expected SEQ
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 239
YAML      : "- item1\n"
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pplibyaml-event

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

    did not find expected '-' indicator

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

perl-pplibyaml-json

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

    did not find expected '-' indicator

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

perl-pplibyaml-perl

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

    did not find expected '-' indicator

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

perl-refparser-event

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

perl-syck-json

 invalid_correct
Syck parser (line 2, column 1): syntax error at /perl5/lib/perl5/x86_64-linux-thread-multi/YAML/Syck.pm line 60, <> line 1.

perl-syck-perl

 invalid_correct
Syck parser (line 2, column 1): syntax error at /perl5/lib/perl5/x86_64-linux-thread-multi/YAML/Syck.pm line 60, <> line 1.

perl-tiny-json

 invalid_correct
YAML::Tiny found bad indenting in line ' - item1' at /yaml/bin/perl-tiny-json line 12.

perl-tiny-perl

 invalid_correct
YAML::Tiny found bad indenting in line ' - item1' at /yaml/bin/perl-tiny-perl line 15.

perl-xs-json

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

    did not find expected '-' indicator

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

perl-xs-perl

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

    did not find expected '-' indicator

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

perl-yaml-json

 invalid_correct
YAML Error: Inconsistent indentation level
   Code: YAML_PARSE_ERR_INCONSISTENT_INDENTATION
   Line: 2
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 804.

perl-yaml-perl

 invalid_correct
YAML Error: Inconsistent indentation level
   Code: YAML_PARSE_ERR_INCONSISTENT_INDENTATION
   Line: 2
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 804.

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 393, in parse_block_sequence_entry
    "expected <block end>, but found %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - key: value
    ^
expected <block end>, but found '<block sequence start>'
  in "<unicode string>", line 2, column 2:
     - item1
     ^
+STR
+DOC
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP

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 82, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 110, in compose_sequence_node
    while not self.check_event(SequenceEndEvent):
  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 393, in parse_block_sequence_entry
    "expected <block end>, but found %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - key: value
    ^
expected <block end>, but found '<block sequence start>'
  in "<unicode string>", line 2, column 2:
     - item1
     ^

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 82, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/python/lib/python3.7/site-packages/yaml/composer.py", line 110, in compose_sequence_node
    while not self.check_event(SequenceEndEvent):
  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 393, in parse_block_sequence_entry
    "expected <block end>, but found %r" % token.id, token.start_mark)
yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - key: value
    ^
expected <block end>, but found '<block sequence start>'
  in "<unicode string>", line 2, column 2:
     - item1
     ^

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 525, in parse_block_sequence_entry
    token.start_mark,
ruamel.yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - key: value
    ^ (line: 1)
expected <block end>, but found '<block sequence start>'
  in "<unicode string>", line 2, column 2:
     - item1
     ^ (line: 2)
+STR
+DOC
+SEQ
+MAP
=VAL :key
=VAL :value
-MAP

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 136, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 179, in compose_sequence_node
    while not self.parser.check_event(SequenceEndEvent):
  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 525, in parse_block_sequence_entry
    token.start_mark,
ruamel.yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - key: value
    ^ (line: 1)
expected <block end>, but found '<block sequence start>'
  in "<unicode string>", line 2, column 2:
     - item1
     ^ (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 136, in compose_node
    node = self.compose_sequence_node(anchor)
  File "/python/lib/python3.7/site-packages/ruamel/yaml/composer.py", line 179, in compose_sequence_node
    while not self.parser.check_event(SequenceEndEvent):
  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 525, in parse_block_sequence_entry
    token.start_mark,
ruamel.yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - key: value
    ^ (line: 1)
expected <block end>, but found '<block sequence start>'
  in "<unicode string>", line 2, column 2:
     - item1
     ^ (line: 2)

ruby-psych-json

 invalid_correct
/usr/lib/ruby/2.5.0/psych.rb:405:in `parse': (<unknown>): did not find expected '-' indicator while parsing a block collection 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>'