# YAML Test Matrix

--- &test-BD7L
  Title: Invalid mapping after sequence
  Tags: [ error, mapping, sequence ]

YAML

- item1
- item2
invalid: x

Expected Events

+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2

Expected JSON



cpp-yamlcpp-event

 invalid_incorrect
+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2
-SEQ
-DOC
+DOC
+MAP
=VAL :invalid
=VAL :x
-MAP
-DOC
-STR

hs-reference-yeast

 invalid_incorrect
Line  Col Char Byte Token|Content
   1    0    0    0 +DOC |
   1    0    0    0 +NODE|
   1    0    0    0 +SEQ |
   1    0    0    0 =SYNX|-
   1    1    1    1 =WSPC|.
   1    2    2    2 +NODE|
   1    2    2    2 +VAL |
   1    2    2    2 =TEXT|item1
   1    7    7    7 -VAL |
   1    7    7    7 -NODE|
   1    7    7    7 =EOL |\x0a
   2    0    8    8 =SYNX|-
   2    1    9    9 =WSPC|.
   2    2   10   10 +NODE|
   2    2   10   10 +VAL |
   2    2   10   10 =TEXT|item2
   2    7   15   15 -VAL |
   2    7   15   15 -NODE|
   2    7   15   15 =EOL |\x0a
   3    0   16   16 -SEQ |
   3    0   16   16 -NODE|
   3    0   16   16 -DOC |
   3    0   16   16 =ERR |Unexpected.'i'

c-libfyaml-event

 invalid_correct
stdin:3:1: error: invalid scalar at the end of block sequence
invalid: x
^~~~~~~
+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2

c-libfyaml-json

 invalid_correct
stdin:3:1: error: invalid scalar at the end of block sequence
invalid: x
^~~~~~~

c-libyaml-event

 invalid_correct
Parse error: did not find expected '-' indicator
+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2

cpp-rapidyaml-event

 invalid_correct
-:3:1: (16B): ERROR: parse error
-:3:1: invalid: x  (size=10)
       ^~~~~~~~~~  (cols 1-11)

dotnet-yamldotnet-event

 invalid_correct
Unhandled exception. YamlDotNet.Core.SemanticErrorException: (Line: 3, Col: 1, Idx: 16) - (Line: 3, Col: 1, Idx: 16): 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
=VAL :item1
=VAL :item2

dotnet-yamldotnet-json

 invalid_correct
Unhandled exception. YamlDotNet.Core.SemanticErrorException: (Line: 3, Col: 1, Idx: 16) - (Line: 3, Col: 1, Idx: 16): 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.Core.ParserExtensions.TryConsume[T](IParser parser, T& event)
   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.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)

go-yaml-json

 invalid_correct
yaml: line 2: did not find expected '-' indicator

hs-hsyaml-event

 invalid_correct
Parsing error near byte offset Pos {posByteOffset = 16, posCharOffset = 16, posLine = 3, posColumn = 0} (Unexpected 'i')
+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2
-SEQ
-DOC

hs-hsyaml-json

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

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 (3:1)

 1 | - item1
 2 | - item2
 3 | invalid: x
-----^
    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 (node:internal/modules/cjs/loader:1358:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1416:10)
    at Module.load (node:internal/modules/cjs/loader:1208:32)
    at Module._load (node:internal/modules/cjs/loader:1024:12) {
  reason: 'end of the stream or a document separator is expected',
  mark: {
    name: null,
    buffer: '- item1\n- item2\ninvalid: x\n',
    position: 16,
    line: 2,
    column: 0,
    snippet: ' 1 | - item1\n 2 | - item2\n 3 | invalid: x\n-----^'
  }
}

Node.js v20.13.1

js-yaml-event

 invalid_correct
Unexpected scalar at node end at line 3, column 1:

- item2
invalid: x
^^^^^^^
+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2
-SEQ
-DOC
-STR

js-yaml-json

 invalid_correct
/yaml/bin/js-yaml-json:9
    if (doc.errors.length !== 0) throw doc.errors[0]
                                 ^

YAMLParseError: Unexpected scalar at node end at line 3, column 1:

- item2
invalid: x
^^^^^^^

    at Composer.onError (/node/node_modules/yaml/dist/compose/composer.js:69:34)
    at Object.resolveEnd (/node/node_modules/yaml/dist/compose/resolve-end.js:31:21)
    at Object.composeDoc (/node/node_modules/yaml/dist/compose/compose-doc.js:37:27)
    at Composer.next (/node/node_modules/yaml/dist/compose/composer.js:149:40)
    at next (<anonymous>)
    at Composer.compose (/node/node_modules/yaml/dist/compose/composer.js:131:25)
    at compose.next (<anonymous>)
    at Function.from (<anonymous>)
    at Object.parseAllDocuments (/node/node_modules/yaml/dist/public-api.js:28:24)
    at Object.<anonymous> (/yaml/bin/js-yaml-json:7:19) {
  code: 'UNEXPECTED_TOKEN',
  pos: [ 16, 23 ],
  linePos: [ { line: 3, col: 1 }, { line: 3, col: 8 } ]
}

Node.js v20.13.1

lua-lyaml-json

 invalid_correct
luajit: 2:3: 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 0x55a7dbb0ded0

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: Illegal token (expected block sequence indicator): Plain [YamlStreamError]
+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2

perl-pp-event

 invalid_correct
Line      : 3
Column    : 1
Expected  : DASH DOC_END DOC_START EOL
Got       : PLAIN
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 392
YAML      : "invalid: x\n"
  at /yaml/bin/perl-pp-event line 46.
+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2

perl-pp-json

 invalid_correct
Line      : 3
Column    : 1
Expected  : DASH DOC_END DOC_START EOL
Got       : PLAIN
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 392
YAML      : "invalid: x\n"
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pp-perl

 invalid_correct
Line      : 3
Column    : 1
Expected  : DASH DOC_END DOC_START EOL
Got       : PLAIN
Where     : /perl5/lib/perl5/YAML/PP/Parser.pm line 392
YAML      : "invalid: x\n"
  at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pplibyaml-json

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

    did not find expected '-' indicator

was found at , line: 3, column: 1
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: 3, column: 1
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 4056, <> line 1.

perl-syck-json

 invalid_correct
Syck parser (line 3, column 7): 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 3, column 7): 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 failed to classify line 'invalid: x' at /yaml/bin/perl-tiny-json line 12.

perl-tiny-perl

 invalid_correct
YAML::Tiny failed to classify line 'invalid: x' 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: 3, column: 1
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: 3, column: 1
while parsing a block collection at line: 1, column: 1

perl-yaml-json

 invalid_correct
YAML Error: Invalid element in sequence
   Code: YAML_LOAD_ERR_BAD_SEQ_ELEMENT
   Line: 3
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 397.

perl-yaml-perl

 invalid_correct
YAML Error: Invalid element in sequence
   Code: YAML_LOAD_ERR_BAD_SEQ_ELEMENT
   Line: 3
   Document: 1
 at /perl5/lib/perl5/YAML/Loader.pm line 397.

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/python3.12/site-packages/yaml/__init__.py", line 75, in parse
    while loader.check_event():
          ^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 392, in parse_block_sequence_entry
    raise ParserError("while parsing a block collection", self.marks[-1],
yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - item1
    ^
expected <block end>, but found '?'
  in "<unicode string>", line 3, column 1:
    invalid: x
    ^
+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2

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/python3.12/site-packages/yaml/__init__.py", line 130, in load_all
    yield loader.get_data()
          ^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/constructor.py", line 45, in get_data
    return self.construct_document(self.get_node())
                                   ^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 82, in compose_node
    node = self.compose_sequence_node(anchor)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 110, in compose_sequence_node
    while not self.check_event(SequenceEndEvent):
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 392, in parse_block_sequence_entry
    raise ParserError("while parsing a block collection", self.marks[-1],
yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - item1
    ^
expected <block end>, but found '?'
  in "<unicode string>", line 3, column 1:
    invalid: x
    ^

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/python3.12/site-packages/yaml/__init__.py", line 130, in load_all
    yield loader.get_data()
          ^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/constructor.py", line 45, in get_data
    return self.construct_document(self.get_node())
                                   ^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 27, in get_node
    return self.compose_document()
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 82, in compose_node
    node = self.compose_sequence_node(anchor)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 110, in compose_sequence_node
    while not self.check_event(SequenceEndEvent):
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 392, in parse_block_sequence_entry
    raise ParserError("while parsing a block collection", self.marks[-1],
yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - item1
    ^
expected <block end>, but found '?'
  in "<unicode string>", line 3, column 1:
    invalid: x
    ^

py-ruamel-event

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-event", line 9, in <module>
    for event in yaml.parse(sys.stdin.read()):
  File "/python/lib/python3.12/site-packages/ruamel/yaml/main.py", line 371, in parse
    while parser.check_event():
          ^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 141, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 546, in parse_block_sequence_entry
    raise ParserError(
ruamel.yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - item1
    ^ (line: 1)
expected <block end>, but found '?'
  in "<unicode string>", line 3, column 1:
    invalid: x
    ^ (line: 3)
+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2

py-ruamel-json

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-json", line 21, in <module>
    for doc in yaml.load_all(sys.stdin.read()):
  File "/python/lib/python3.12/site-packages/ruamel/yaml/main.py", line 476, in load_all
    yield constructor.get_data()
          ^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/constructor.py", line 110, in get_data
    return self.construct_document(self.composer.get_node())
                                   ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 63, in get_node
    return self.compose_document()
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 94, in compose_document
    node = self.compose_node(None, None)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 128, in compose_node
    node = self.compose_sequence_node(anchor)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 172, in compose_sequence_node
    while not self.parser.check_event(SequenceEndEvent):
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 141, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 546, in parse_block_sequence_entry
    raise ParserError(
ruamel.yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - item1
    ^ (line: 1)
expected <block end>, but found '?'
  in "<unicode string>", line 3, column 1:
    invalid: x
    ^ (line: 3)

py-ruamel-py

 invalid_correct
Traceback (most recent call last):
  File "/yaml/bin/py-ruamel-py", line 38, in <module>
    for doc in yaml.load_all(sys.stdin.read()):
  File "/python/lib/python3.12/site-packages/ruamel/yaml/main.py", line 476, in load_all
    yield constructor.get_data()
          ^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/constructor.py", line 110, in get_data
    return self.construct_document(self.composer.get_node())
                                   ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 63, in get_node
    return self.compose_document()
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 94, in compose_document
    node = self.compose_node(None, None)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 128, in compose_node
    node = self.compose_sequence_node(anchor)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 172, in compose_sequence_node
    while not self.parser.check_event(SequenceEndEvent):
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 141, in check_event
    self.current_event = self.state()
                         ^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 546, in parse_block_sequence_entry
    raise ParserError(
ruamel.yaml.parser.ParserError: while parsing a block collection
  in "<unicode string>", line 1, column 1:
    - item1
    ^ (line: 1)
expected <block end>, but found '?'
  in "<unicode string>", line 3, column 1:
    invalid: x
    ^ (line: 3)

ruby-psych-json

 invalid_correct
/ruby/gems/psych/lib/psych.rb:458:in `parse': (<unknown>): did not find expected '-' indicator while parsing a block collection at line 1 column 1 (Psych::SyntaxError)
	from /ruby/gems/psych/lib/psych.rb:458:in `parse_stream'
	from /ruby/gems/psych/lib/psych.rb:632:in `load_stream'
	from /yaml/bin/ruby-psych-json:6:in `<main>'

rust-yamlrust-event

 invalid_correct
Error: ScanError { mark: Marker { index: 16, line: 3, col: 0 }, info: "while parsing a block collection, did not find expected '-' indicator" }
+STR
+DOC
+SEQ
=VAL :item1
=VAL :item2