def test_parse_creates_ast():
source = Source("""{
node(id: 4) {
id,
name
}
}
""")
result = parse(source)
assert result == \
ast.Document(
loc={'start': 0, 'end': 41, 'source': source},
definitions=
[ast.OperationDefinition(
loc={'start': 0, 'end': 40, 'source': source},
operation='query',
name=None,
variable_definitions=None,
directives=[],
selection_set=ast.SelectionSet(
loc={'start': 0, 'end': 40, 'source': source},
selections=
[ast.Field(
loc={'start': 4, 'end': 38, 'source': source},
alias=None,
name=ast.Name(
loc={'start': 4, 'end': 8, 'source': source},
value='node'),
arguments=[ast.Argument(
name=ast.Name(loc={'start': 9, 'end': 11, 'source': source},
value='id'),
value=ast.IntValue(
loc={'start': 13, 'end': 14, 'source': source},
value='4'),
loc={'start': 9, 'end': 14, 'source': source})],
directives=[],
selection_set=ast.SelectionSet(
loc={'start': 16, 'end': 38, 'source': source},
selections=
[ast.Field(
loc={'start': 22, 'end': 24, 'source': source},
alias=None,
name=ast.Name(
loc={'start': 22, 'end': 24, 'source': source},
value='id'),
arguments=[],
directives=[],
selection_set=None),
ast.Field(
loc={'start': 30, 'end': 34, 'source': source},
alias=None,
name=ast.Name(
loc={'start': 30, 'end': 34, 'source': source},
value='name'),
arguments=[],
directives=[],
selection_set=None)]))]))])
def test_parse_creates_ast():
source = Source("""{
node(id: 4) {
id,
name
}
}
""")
result = parse(source)
assert result == \
ast.Document(
loc=Loc(start=0, end=41, source=source),
definitions=
[ast.OperationDefinition(
loc=Loc(start=0, end=40, source=source),
operation='query',
name=None,
variable_definitions=None,
directives=[],
selection_set=ast.SelectionSet(
loc=Loc(start=0, end=40, source=source),
selections=
[ast.Field(
loc=Loc(start=4, end=38, source=source),
alias=None,
name=ast.Name(
loc=Loc(start=4, end=8, source=source),
value='node'),
arguments=[ast.Argument(
name=ast.Name(loc=Loc(start=9, end=11, source=source),
value='id'),
value=ast.IntValue(
loc=Loc(start=13, end=14, source=source),
value='4'),
loc=Loc(start=9, end=14, source=source))],
directives=[],
selection_set=ast.SelectionSet(
loc=Loc(start=16, end=38, source=source),
selections=
[ast.Field(
loc=Loc(start=22, end=24, source=source),
alias=None,
name=ast.Name(
loc=Loc(start=22, end=24, source=source),
value='id'),
arguments=[],
directives=[],
selection_set=None),
ast.Field(
loc=Loc(start=30, end=34, source=source),
alias=None,
name=ast.Name(
loc=Loc(start=30, end=34, source=source),
value='name'),
arguments=[],
directives=[],
selection_set=None)]))]))])
def test_lex_reports_useful_information_for_dashes_in_names():
q = u'a-b'
lexer = Lexer(Source(q))
first_token = lexer.next_token()
assert first_token == Token(TokenKind.NAME, 0, 1, 'a')
with raises(LanguageError) as excinfo:
lexer.next_token()
assert u'Syntax Error GraphQL (1:3) Invalid number, expected digit but got: "b".' in excinfo.value.message
def lex_one(s):
return Lexer(Source(s)).next_token()
def validation_errors(query):
source = Source(query, 'StarWars.graphql')
ast = parse(source)
return validate(StarWarsSchema, ast)
def test_parse_provides_useful_error_when_using_source():
with raises(LanguageError) as excinfo:
parse(Source('query', 'MyQuery.graphql'))
assert 'Syntax Error MyQuery.graphql (1:6) Expected Name, found EOF' in str(
excinfo.value)