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from edify.errors.anchors import (
CannotDefineStartAfterEndError,
EndInputAlreadyDefinedError,
StartInputAlreadyDefinedError,
)
from edify.errors.captures import InvalidTotalCaptureGroupsIndexError
from edify.errors.input import (
MustBeAStringError,
MustBeAtLeastOneLiteralError,
MustBeAtLeastTwoOperandsError,
MustBeInstanceError,
MustBeIntegerGreaterThanZeroError,
MustBeLessThanError,
MustBeOneCharacterError,
MustBePositiveIntegerError,
MustBeSingleCharacterError,
MustHaveASmallerValueError,
)
from edify.errors.internal import (
FailedToCompileRegexError,
NonFusableElementError,
UnexpectedFrameTypeError,
UnknownElementTypeError,
)
from edify.errors.naming import (
CannotCreateDuplicateNamedGroupError,
NamedGroupDoesNotExistError,
NameNotValidError,
)
from edify.errors.structure import (
CannotCallSubexpressionError,
CannotEndWhileBuildingRootExpressionError,
)
def test_start_input_already_defined_outside_subexpression():
error = StartInputAlreadyDefinedError()
text = str(error)
assert "start_of_input has already been added" in text
assert "help: remove the duplicate .start_of_input()" in text
assert "ignore_start_and_end" not in text
def test_start_input_already_defined_in_subexpression():
error = StartInputAlreadyDefinedError(in_subexpression=True)
text = str(error)
assert "start_of_input has already been added" in text
assert "ignore_start_and_end=True" in text
def test_end_input_already_defined_outside_subexpression():
error = EndInputAlreadyDefinedError()
text = str(error)
assert "end_of_input has already been added" in text
assert "help: remove the duplicate .end_of_input()" in text
assert "ignore_start_and_end" not in text
def test_end_input_already_defined_in_subexpression():
error = EndInputAlreadyDefinedError(in_subexpression=True)
text = str(error)
assert "end_of_input has already been added" in text
assert "ignore_start_and_end=True" in text
def test_cannot_define_start_after_end():
error = CannotDefineStartAfterEndError()
text = str(error)
assert "start_of_input cannot follow end_of_input" in text
assert "move .start_of_input() to before" in text
def test_invalid_total_capture_groups_index_reports_out_of_range():
error = InvalidTotalCaptureGroupsIndexError(5, 3)
text = str(error)
assert "back_reference index #5 is out of range" in text
assert "3 capture groups" in text
assert "valid indices are 1 to 3" in text
def test_invalid_total_capture_groups_index_with_no_capture_groups_prompts_add_one():
error = InvalidTotalCaptureGroupsIndexError(1, 0)
text = str(error)
assert "no capture groups yet" in text
assert "add a .capture()" in text
def test_must_be_a_string():
error = MustBeAStringError("Name", "int")
text = str(error)
assert "Name must be a string" in text
assert "int" in text
assert "convert the value with str(...)" in text
def test_must_be_one_character():
error = MustBeOneCharacterError("Value")
text = str(error)
assert "Value must be one character long" in text
def test_must_be_single_character():
error = MustBeSingleCharacterError("Value", "str")
text = str(error)
assert "Value must be a single character" in text
assert "str" in text
def test_must_be_positive_integer():
error = MustBePositiveIntegerError("count")
text = str(error)
assert "count must be a positive integer" in text
def test_must_be_integer_greater_than_zero():
error = MustBeIntegerGreaterThanZeroError("x")
text = str(error)
assert "x must be an integer greater than zero" in text
def test_must_be_instance():
error = MustBeInstanceError("Expression", "str", "RegexBuilder")
text = str(error)
assert "Expression must be an instance of RegexBuilder" in text
assert "str" in text
def test_must_have_a_smaller_value_reports_the_codepoints():
error = MustHaveASmallerValueError("z", "a")
text = str(error)
assert "range bounds are inverted" in text
assert "'z'" in text
assert "'a'" in text
assert "= 122" in text
assert "= 97" in text
def test_must_be_less_than():
error = MustBeLessThanError("X", "Y")
text = str(error)
assert "X must be less than Y" in text
def test_must_be_at_least_two_operands():
error = MustBeAtLeastTwoOperandsError("any_of")
text = str(error)
assert "any_of requires at least two operands" in text
def test_must_be_at_least_one_literal():
error = MustBeAtLeastOneLiteralError("one_of")
text = str(error)
assert "one_of requires at least one literal" in text
def test_name_not_valid():
error = NameNotValidError("bad name")
text = str(error)
assert "'bad name' is not a valid identifier" in text
assert "letters, digits, and underscores" in text
def test_cannot_create_duplicate_named_group():
error = CannotCreateDuplicateNamedGroupError("dup")
text = str(error)
assert "named group 'dup' already exists" in text
assert ".named_back_reference('dup')" in text
def test_named_group_does_not_exist():
error = NamedGroupDoesNotExistError("missing")
text = str(error)
assert "named group 'missing' does not exist" in text
assert ".named_capture('missing')" in text
def test_cannot_end_while_building_root_expression():
error = CannotEndWhileBuildingRootExpressionError()
text = str(error)
assert "cannot .end() while building the root expression" in text
assert "no matching opener" in text or "no frame to close" in text
def test_cannot_call_subexpression():
error = CannotCallSubexpressionError("capture")
text = str(error)
assert "cannot merge a subexpression that has an unclosed frame" in text
assert "capture" in text
def test_unknown_element_type():
error = UnknownElementTypeError("WeirdElement")
text = str(error)
assert "unknown element type 'WeirdElement'" in text
def test_non_fusable_element():
error = NonFusableElementError("DigitElement")
text = str(error)
assert "cannot fuse element 'DigitElement' into a character class" in text
def test_unexpected_frame_type():
error = UnexpectedFrameTypeError("DigitElement")
text = str(error)
assert "stack frame anchored at unexpected element 'DigitElement'" in text
def test_failed_to_compile_regex():
error = FailedToCompileRegexError("missing )")
text = str(error)
assert "rejected by the re engine" in text
assert "missing )" in text
def test_every_annotated_error_message_starts_with_error_prefix():
errors = [
StartInputAlreadyDefinedError(),
CannotDefineStartAfterEndError(),
EndInputAlreadyDefinedError(),
InvalidTotalCaptureGroupsIndexError(1, 0),
MustBeAStringError("X", "int"),
MustBeOneCharacterError("X"),
MustBeSingleCharacterError("X", "int"),
MustBePositiveIntegerError("X"),
MustBeIntegerGreaterThanZeroError("X"),
MustBeInstanceError("X", "int", "Y"),
MustHaveASmallerValueError("z", "a"),
MustBeLessThanError("A", "B"),
MustBeAtLeastTwoOperandsError("f"),
MustBeAtLeastOneLiteralError("f"),
NameNotValidError("x"),
CannotCreateDuplicateNamedGroupError("x"),
NamedGroupDoesNotExistError("x"),
CannotEndWhileBuildingRootExpressionError(),
CannotCallSubexpressionError("capture"),
UnknownElementTypeError("X"),
NonFusableElementError("X"),
UnexpectedFrameTypeError("X"),
FailedToCompileRegexError("boom"),
]
for error in errors:
text = str(error)
assert text.startswith("error:")
assert "help:" in text
assert "= note:" in text
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