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v0.11.1: Unit test errors

See original GitHub issue

Running the unit tests on lark version 0.11.1 I get the following errors (using Python 3.8 and 3.9):

======================================================================
ERROR: test_import_custom_sources (tests.test_parser.tests.test_parser.TestCykStandard)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 1947, in test_import_custom_sources
    p = _Lark(grammar, import_paths=[custom_loader2])
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 946, in _Lark
    return Lark(grammar, lexer=lexer_class_or_name, parser=PARSER, propagate_positions=True, **kwargs)
  File "/<<PKGBUILDDIR>>/lark/lark.py", line 300, in __init__
    self.grammar = load_grammar(grammar, self.source_path, self.options.import_paths, self.options.keep_all_tokens)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 1061, in load_grammar
    return GrammarLoader(global_keep_all_tokens).load_grammar(grammar, source, import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 978, in load_grammar
    g = self.import_grammar(grammar_path, base_path=base_path, import_paths=import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 886, in import_grammar
    open(grammar_path, encoding='utf8')
FileNotFoundError: [Errno 2] No such file or directory: 'test_relative_import.lark'

======================================================================
ERROR: test_import_custom_sources (tests.test_parser.tests.test_parser.TestEarleyDynamic)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 1947, in test_import_custom_sources
    p = _Lark(grammar, import_paths=[custom_loader2])
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 946, in _Lark
    return Lark(grammar, lexer=lexer_class_or_name, parser=PARSER, propagate_positions=True, **kwargs)
  File "/<<PKGBUILDDIR>>/lark/lark.py", line 300, in __init__
    self.grammar = load_grammar(grammar, self.source_path, self.options.import_paths, self.options.keep_all_tokens)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 1061, in load_grammar
    return GrammarLoader(global_keep_all_tokens).load_grammar(grammar, source, import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 978, in load_grammar
    g = self.import_grammar(grammar_path, base_path=base_path, import_paths=import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 886, in import_grammar
    open(grammar_path, encoding='utf8')
FileNotFoundError: [Errno 2] No such file or directory: 'test_relative_import.lark'

======================================================================
ERROR: test_import_custom_sources (tests.test_parser.tests.test_parser.TestEarleyStandard)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 1947, in test_import_custom_sources
    p = _Lark(grammar, import_paths=[custom_loader2])
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 946, in _Lark
    return Lark(grammar, lexer=lexer_class_or_name, parser=PARSER, propagate_positions=True, **kwargs)
  File "/<<PKGBUILDDIR>>/lark/lark.py", line 300, in __init__
    self.grammar = load_grammar(grammar, self.source_path, self.options.import_paths, self.options.keep_all_tokens)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 1061, in load_grammar
    return GrammarLoader(global_keep_all_tokens).load_grammar(grammar, source, import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 978, in load_grammar
    g = self.import_grammar(grammar_path, base_path=base_path, import_paths=import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 886, in import_grammar
    open(grammar_path, encoding='utf8')
FileNotFoundError: [Errno 2] No such file or directory: 'test_relative_import.lark'

======================================================================
ERROR: test_import_custom_sources (tests.test_parser.tests.test_parser.TestLalrContextual)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 1947, in test_import_custom_sources
    p = _Lark(grammar, import_paths=[custom_loader2])
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 946, in _Lark
    return Lark(grammar, lexer=lexer_class_or_name, parser=PARSER, propagate_positions=True, **kwargs)
  File "/<<PKGBUILDDIR>>/lark/lark.py", line 300, in __init__
    self.grammar = load_grammar(grammar, self.source_path, self.options.import_paths, self.options.keep_all_tokens)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 1061, in load_grammar
    return GrammarLoader(global_keep_all_tokens).load_grammar(grammar, source, import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 978, in load_grammar
    g = self.import_grammar(grammar_path, base_path=base_path, import_paths=import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 886, in import_grammar
    open(grammar_path, encoding='utf8')
FileNotFoundError: [Errno 2] No such file or directory: 'test_relative_import.lark'

======================================================================
ERROR: test_import_custom_sources (tests.test_parser.tests.test_parser.TestLalrCustom)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 1947, in test_import_custom_sources
    p = _Lark(grammar, import_paths=[custom_loader2])
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 946, in _Lark
    return Lark(grammar, lexer=lexer_class_or_name, parser=PARSER, propagate_positions=True, **kwargs)
  File "/<<PKGBUILDDIR>>/lark/lark.py", line 300, in __init__
    self.grammar = load_grammar(grammar, self.source_path, self.options.import_paths, self.options.keep_all_tokens)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 1061, in load_grammar
    return GrammarLoader(global_keep_all_tokens).load_grammar(grammar, source, import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 978, in load_grammar
    g = self.import_grammar(grammar_path, base_path=base_path, import_paths=import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 886, in import_grammar
    open(grammar_path, encoding='utf8')
FileNotFoundError: [Errno 2] No such file or directory: 'test_relative_import.lark'

======================================================================
ERROR: test_import_custom_sources (tests.test_parser.tests.test_parser.TestLalrStandard)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 1947, in test_import_custom_sources
    p = _Lark(grammar, import_paths=[custom_loader2])
  File "/<<PKGBUILDDIR>>/tests/test_parser.py", line 946, in _Lark
    return Lark(grammar, lexer=lexer_class_or_name, parser=PARSER, propagate_positions=True, **kwargs)
  File "/<<PKGBUILDDIR>>/lark/lark.py", line 300, in __init__
    self.grammar = load_grammar(grammar, self.source_path, self.options.import_paths, self.options.keep_all_tokens)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 1061, in load_grammar
    return GrammarLoader(global_keep_all_tokens).load_grammar(grammar, source, import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 978, in load_grammar
    g = self.import_grammar(grammar_path, base_path=base_path, import_paths=import_paths)
  File "/<<PKGBUILDDIR>>/lark/load_grammar.py", line 886, in import_grammar
    open(grammar_path, encoding='utf8')
FileNotFoundError: [Errno 2] No such file or directory: 'test_relative_import.lark'

----------------------------------------------------------------------
Ran 687 tests in 36.485s

FAILED (errors=6, skipped=68)

It seems the CI tests did not show a similar issue. Do you have any idea what is going wrong here?

Issue Analytics

  • State:closed
  • Created 3 years ago
  • Comments:8 (8 by maintainers)

github_iconTop GitHub Comments

1reaction
MegaIngcommented, Nov 22, 2020

With python -m tests it works. unittest does something else that somehow hurts file finding.

0reactions
MegaIngcommented, Nov 25, 2020

Ok, found the source of the ‘bug’. It is just that the tests weren’t able to deal with a situation where __main__ isn’t within tests. I will create a PR. lucky, the same commit that introduced this problem also contained an easy way to fix this.

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