def test_compile_empty_header_raises_type_error(self): class EmptyHeader(Header): pass with raises(TypeError): compile_struct(EmptyHeader)
def test_compile_header_coincident_fields_with_different_types_raises_type_error( self): class CoincidentFieldsWithDifferentTypesHeader(Header): field_a = field(Int32, 1, 0, "Field A.") field_b = field(NNInt32, 1, 0, "Field B.") with raises(TypeError): compile_struct(CoincidentFieldsWithDifferentTypesHeader)
def test_compile_header_coincident_fields_with_different_types_raises_type_error(self): class CoincidentFieldsWithDifferentTypesHeader(Header): field_a = field(Int32, 1, 0, "Field A.") field_b = field(NNInt32, 1, 0, "Field B.") with raises(TypeError): compile_struct(CoincidentFieldsWithDifferentTypesHeader)
def test_compile_header_with_partially_overlapping_fields_raises_value_error( self): class OverlappingFieldsHeader(Header): field_a = field(Int32, 1, 0, "Field A.") field_b = field(Int32, 3, 0, "Field B.") with raises(ValueError): compile_struct(OverlappingFieldsHeader)
def test_compile_header_with_partially_overlapping_fields_raises_value_error(self): class OverlappingFieldsHeader(Header): field_a = field(Int32, 1, 0, "Field A.") field_b = field(Int32, 3, 0, "Field B.") with raises(ValueError): compile_struct(OverlappingFieldsHeader)
def test_compile_header_with_too_short_length_raises_value_error(self): class ShortHeader(Header): START_OFFSET_IN_BYTES = 1 LENGTH_IN_BYTES = 3 field_a = field(Int32, 1, 0, "Field A.") with raises(ValueError): compile_struct(ShortHeader, ShortHeader.START_OFFSET_IN_BYTES, ShortHeader.LENGTH_IN_BYTES)
def test_compile_header_with_too_short_length_raises_value_error(self): class ShortHeader(Header): START_OFFSET_IN_BYTES = 1 LENGTH_IN_BYTES = 3 field_a = field(Int32, 1, 0, "Field A.") with raises(ValueError): compile_struct(ShortHeader, ShortHeader.START_OFFSET_IN_BYTES, ShortHeader.LENGTH_IN_BYTES)
def test_compile_surjective_header_packer_successfully(self, endian): class SurjectiveHeader(Header): field_a = field(Int32, 1, 0, "Field A.") field_b = field(NNInt32, 5, 0, "Field B.") field_c = field(Int32, 1, 0, "Field C.") cformat, field_name_allocations = compile_struct(SurjectiveHeader, 1, endian=endian) assert cformat[0] == endian assert cformat[1] == 'i' assert field_name_allocations == [['field_a','field_c'], ['field_b']]
def test_compile_surjective_header_packer_successfully(self, endian): class SurjectiveHeader(Header): field_a = field(Int32, 1, 0, "Field A.") field_b = field(NNInt32, 5, 0, "Field B.") field_c = field(Int32, 1, 0, "Field C.") cformat, field_name_allocations = compile_struct(SurjectiveHeader, 1, endian=endian) assert cformat[0] == endian assert cformat[1] == 'i' assert field_name_allocations == [['field_a', 'field_c'], ['field_b']]
def test_compile_empty_header_raises_type_error(self): class EmptyHeader(Header): pass with raises(TypeError): compile_struct(EmptyHeader)
def test_compile_with_non_positive_length_raises_value_error(self): with raises(ValueError): compile_struct(None, 0, 0)
def test_compile_with_negative_start_offset_raises_value_error(self): with raises(ValueError): compile_struct(None, -1, 1)
def test_compile_with_non_positive_length_raises_value_error(self): with raises(ValueError): compile_struct(None, 0, 0)
def test_compile_with_negative_start_offset_raises_value_error(self): with raises(ValueError): compile_struct(None, -1, 1)