# YAML Test Matrix

--- &test-SF5V
  Title: Duplicate YAML directive
  Tags: [ directive, error ]

YAML

%YAML 1.2
%YAML 1.2
---

Expected Events

+STR

Expected JSON



cpp-rapidyaml-event

 invalid_incorrect
+STR
+DOC ---
=VAL :
-DOC
-STR

hs-reference-yeast

 invalid_incorrect
Line  Col Char Byte Token|Content
   1    0    0    0 +DOC |
   1    0    0    0 +DIR |
   1    0    0    0 =SYNX|%
   1    1    1    1 =META|YAML
   1    5    5    5 =WSPC|.
   1    6    6    6 =META|1.2
   1    9    9    9 -DIR |
   1    9    9    9 =EOL |\x0a
   2    0   10   10 +DIR |
   2    0   10   10 =SYNX|%
   2    1   11   11 =META|YAML
   2    5   15   15 =WSPC|.
   2    6   16   16 =META|1.2
   2    9   19   19 -DIR |
   2    9   19   19 =EOL |\x0a
   3    0   20   20 =HEAD|---
   3    3   23   23 +NODE|
   3    3   23   23 +VAL |
   3    3   23   23 -VAL |
   3    3   23   23 -NODE|
   3    3   23   23 =EOL |\x0a
   4    0   24   24 -DOC |

js-yaml-event

 invalid_incorrect
+STR
+DOC ---
=VAL :
-DOC
-STR

js-yaml-json

 invalid_incorrect
null

perl-syck-json

 invalid_incorrect
"%YAML 1.2 %YAML 1.2 ---"

perl-syck-perl

 invalid_incorrect
'%YAML 1.2 %YAML 1.2 ---'

rust-yamlrust-event

 invalid_incorrect
+STR
+DOC
=VAL :
-DOC
-STR

c-libfyaml-event

 invalid_correct
stdin:2:7: error: duplicate version directive
%YAML 1.2
      ^~~
+STR

c-libfyaml-json

 invalid_correct
stdin:2:7: error: duplicate version directive
%YAML 1.2
      ^~~

c-libyaml-event

 invalid_correct
Parse error: found duplicate %YAML directive
+STR

cpp-yamlcpp-event

 invalid_correct
Exception:
yaml-cpp: error at line 2, column 1: repeated YAML directive
+STR

dotnet-yamldotnet-event

 invalid_correct
Unhandled exception. YamlDotNet.Core.SemanticErrorException: (Line: 2, Col: 1, Idx: 10) - (Line: 2, Col: 6, Idx: 15): While scanning a version directive, did not find preceding <document end>.
   at YamlDotNet.Core.Scanner.ScanDirective()
   at YamlDotNet.Core.Scanner.FetchDirective()
   at YamlDotNet.Core.Scanner.FetchNextToken()
   at YamlDotNet.Core.Scanner.FetchMoreTokens()
   at YamlDotNet.Core.Scanner.MoveNextWithoutConsuming()
   at YamlDotNet.Core.Parser.GetCurrentToken()
   at YamlDotNet.Core.Parser.ProcessDirectives(TagDirectiveCollection tags)
   at YamlDotNet.Core.Parser.ParseDocumentStart(Boolean isImplicit)
   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

dotnet-yamldotnet-json

 invalid_correct
Unhandled exception. YamlDotNet.Core.SemanticErrorException: (Line: 2, Col: 1, Idx: 10) - (Line: 2, Col: 6, Idx: 15): While scanning a version directive, did not find preceding <document end>.
   at YamlDotNet.Core.Scanner.ScanDirective()
   at YamlDotNet.Core.Scanner.FetchDirective()
   at YamlDotNet.Core.Scanner.FetchNextToken()
   at YamlDotNet.Core.Scanner.FetchMoreTokens()
   at YamlDotNet.Core.Scanner.MoveNextWithoutConsuming()
   at YamlDotNet.Core.Parser.GetCurrentToken()
   at YamlDotNet.Core.Parser.ProcessDirectives(TagDirectiveCollection tags)
   at YamlDotNet.Core.Parser.ParseDocumentStart(Boolean isImplicit)
   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)

go-yaml-json

 invalid_correct
yaml: found incompatible YAML document

hs-hsyaml-event

 invalid_correct
Parsing error near byte offset Pos {posByteOffset = 10, posCharOffset = 10, posLine = 2, posColumn = 0} (Multiple %YAML directives)
+STR

hs-hsyaml-json

 invalid_correct
hsyaml-parser: user error (Multiple %YAML directives)

js-jsyaml-json

 invalid_correct
/node/node_modules/js-yaml/lib/loader.js:187
  throw generateError(state, message);
  ^
YAMLException: duplication of %YAML directive (3:1)

 1 | %YAML 1.2
 2 | %YAML 1.2
 3 | ---
-----^
    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 Object.handleYamlDirective [as YAML] (/node/node_modules/js-yaml/lib/loader.js:204:7)
    at readDocument (/node/node_modules/js-yaml/lib/loader.js:1606:39)
    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) {
  reason: 'duplication of %YAML directive',
  mark: {
    name: null,
    buffer: '%YAML 1.2\n%YAML 1.2\n---\n',
    position: 20,
    line: 2,
    column: 0,
    snippet: ' 1 | %YAML 1.2\n 2 | %YAML 1.2\n 3 | ---\n-----^'
  }
}

Node.js v20.13.1

lua-lyaml-json

 invalid_correct
luajit: /usr/local/share/lua/5.1/lyaml/init.lua:306: invalid option '%Y' to 'format'
stack traceback:
	[C]: in function 'format'
	/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:496: in function 'load'
	/yaml/bin/lua-lyaml-json:6: in main chunk
	[C]: at 0x560e9ada6ed0

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: Duplicate %YAML [YamlStreamError]
+STR

perl-pp-event

 invalid_correct
Found duplicate YAML directive at /yaml/bin/perl-pp-event line 46.
 at /yaml/bin/perl-pp-event line 46.
+STR

perl-pp-json

 invalid_correct
Found duplicate YAML directive at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.
 at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pp-perl

 invalid_correct
Found duplicate YAML directive at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.
 at /perl5/lib/perl5/YAML/PP/Loader.pm line 94.

perl-pplibyaml-json

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

    found duplicate %YAML directive

was found at , line: 2, column: 1

perl-pplibyaml-perl

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

    found duplicate %YAML directive

was found at , line: 2, column: 1

perl-refparser-event

 invalid_correct
Multiple %YAML directives not allowed at /perl5/lib/perl5/YAML/Parser.pm line 4872, <> line 1.

perl-tiny-json

 invalid_correct
YAML::Tiny failed to classify line '%YAML 1.2' at /yaml/bin/perl-tiny-json line 12.

perl-tiny-perl

 invalid_correct
YAML::Tiny failed to classify line '%YAML 1.2' at /yaml/bin/perl-tiny-perl line 15.

perl-xs-json

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

    found duplicate %YAML directive

was found at document: 1, line: 2, column: 1

perl-xs-perl

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

    found duplicate %YAML directive

was found at document: 1, line: 2, column: 1

perl-yaml-json

 invalid_correct
YAML Error: Expected separator '---'
   Code: YAML_PARSE_ERR_NO_SEPARATOR
   Line: 1
   Document: 2
 at /perl5/lib/perl5/YAML/Loader.pm line 88.

perl-yaml-perl

 invalid_correct
YAML Error: Expected separator '---'
   Code: YAML_PARSE_ERR_NO_SEPARATOR
   Line: 1
   Document: 2
 at /perl5/lib/perl5/YAML/Loader.pm line 88.

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 157, in parse_implicit_document_start
    return self.parse_document_start()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 169, in parse_document_start
    version, tags = self.process_directives()
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 224, in process_directives
    raise ParserError(None, None,
yaml.parser.ParserError: found duplicate YAML directive
  in "<unicode string>", line 2, column 1:
    %YAML 1.2
    ^
+STR

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 129, in load_all
    while loader.check_data():
          ^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/constructor.py", line 32, in check_data
    return self.check_node()
           ^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 22, in check_node
    return not self.check_event(StreamEndEvent)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  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 157, in parse_implicit_document_start
    return self.parse_document_start()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 169, in parse_document_start
    version, tags = self.process_directives()
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 224, in process_directives
    raise ParserError(None, None,
yaml.parser.ParserError: found duplicate YAML directive
  in "<unicode string>", line 2, column 1:
    %YAML 1.2
    ^

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 129, in load_all
    while loader.check_data():
          ^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/constructor.py", line 32, in check_data
    return self.check_node()
           ^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/composer.py", line 22, in check_node
    return not self.check_event(StreamEndEvent)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  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 157, in parse_implicit_document_start
    return self.parse_document_start()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 169, in parse_document_start
    version, tags = self.process_directives()
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/yaml/parser.py", line 224, in process_directives
    raise ParserError(None, None,
yaml.parser.ParserError: found duplicate YAML directive
  in "<unicode string>", line 2, column 1:
    %YAML 1.2
    ^

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 201, in parse_implicit_document_start
    return self.parse_document_start()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 209, in parse_document_start
    version, tags = self.process_directives()
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 295, in process_directives
    raise ParserError(
ruamel.yaml.parser.ParserError: found duplicate YAML directive
  in "<unicode string>", line 2, column 1:
    %YAML 1.2
    ^ (line: 2)
+STR

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 475, in load_all
    while constructor.check_data():
          ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/constructor.py", line 105, in check_data
    return self.composer.check_node()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 58, in check_node
    return not self.parser.check_event(StreamEndEvent)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  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 201, in parse_implicit_document_start
    return self.parse_document_start()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 209, in parse_document_start
    version, tags = self.process_directives()
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 295, in process_directives
    raise ParserError(
ruamel.yaml.parser.ParserError: found duplicate YAML directive
  in "<unicode string>", line 2, column 1:
    %YAML 1.2
    ^ (line: 2)

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 475, in load_all
    while constructor.check_data():
          ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/constructor.py", line 105, in check_data
    return self.composer.check_node()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/composer.py", line 58, in check_node
    return not self.parser.check_event(StreamEndEvent)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  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 201, in parse_implicit_document_start
    return self.parse_document_start()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 209, in parse_document_start
    version, tags = self.process_directives()
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/python/lib/python3.12/site-packages/ruamel/yaml/parser.py", line 295, in process_directives
    raise ParserError(
ruamel.yaml.parser.ParserError: found duplicate YAML directive
  in "<unicode string>", line 2, column 1:
    %YAML 1.2
    ^ (line: 2)

ruby-psych-json

 invalid_correct
/ruby/gems/psych/lib/psych.rb:458:in `parse': (<unknown>): found duplicate %YAML directive 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>'