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Diffstat (limited to 'tests/test_fields.py')
| -rw-r--r-- | tests/test_fields.py | 674 |
1 files changed, 674 insertions, 0 deletions
diff --git a/tests/test_fields.py b/tests/test_fields.py new file mode 100644 index 00000000..6bf9aed4 --- /dev/null +++ b/tests/test_fields.py @@ -0,0 +1,674 @@ +from decimal import Decimal +from django.utils import timezone +from rest_framework import fields +import datetime +import django +import pytest + + +# Tests for field keyword arguments and core functionality. +# --------------------------------------------------------- + +class TestFieldOptions: + def test_required(self): + """ + By default a field must be included in the input. + """ + field = fields.IntegerField() + with pytest.raises(fields.ValidationError) as exc_info: + field.run_validation() + assert exc_info.value.messages == ['This field is required.'] + + def test_not_required(self): + """ + If `required=False` then a field may be omitted from the input. + """ + field = fields.IntegerField(required=False) + with pytest.raises(fields.SkipField): + field.run_validation() + + def test_disallow_null(self): + """ + By default `None` is not a valid input. + """ + field = fields.IntegerField() + with pytest.raises(fields.ValidationError) as exc_info: + field.run_validation(None) + assert exc_info.value.messages == ['This field may not be null.'] + + def test_allow_null(self): + """ + If `allow_null=True` then `None` is a valid input. + """ + field = fields.IntegerField(allow_null=True) + output = field.run_validation(None) + assert output is None + + def test_disallow_blank(self): + """ + By default '' is not a valid input. + """ + field = fields.CharField() + with pytest.raises(fields.ValidationError) as exc_info: + field.run_validation('') + assert exc_info.value.messages == ['This field may not be blank.'] + + def test_allow_blank(self): + """ + If `allow_blank=True` then '' is a valid input. + """ + field = fields.CharField(allow_blank=True) + output = field.run_validation('') + assert output is '' + + def test_default(self): + """ + If `default` is set, then omitted values get the default input. + """ + field = fields.IntegerField(default=123) + output = field.run_validation() + assert output is 123 + + +# Tests for field input and output values. +# ---------------------------------------- + +def get_items(mapping_or_list_of_two_tuples): + # Tests accept either lists of two tuples, or dictionaries. + if isinstance(mapping_or_list_of_two_tuples, dict): + # {value: expected} + return mapping_or_list_of_two_tuples.items() + # [(value, expected), ...] + return mapping_or_list_of_two_tuples + + +class FieldValues: + """ + Base class for testing valid and invalid input values. + """ + def test_valid_inputs(self): + """ + Ensure that valid values return the expected validated data. + """ + for input_value, expected_output in get_items(self.valid_inputs): + assert self.field.run_validation(input_value) == expected_output + + def test_invalid_inputs(self): + """ + Ensure that invalid values raise the expected validation error. + """ + for input_value, expected_failure in get_items(self.invalid_inputs): + with pytest.raises(fields.ValidationError) as exc_info: + self.field.run_validation(input_value) + assert exc_info.value.messages == expected_failure + + def test_outputs(self): + for output_value, expected_output in get_items(self.outputs): + assert self.field.to_representation(output_value) == expected_output + + +# Boolean types... + +class TestBooleanField(FieldValues): + """ + Valid and invalid values for `BooleanField`. + """ + valid_inputs = { + 'true': True, + 'false': False, + '1': True, + '0': False, + 1: True, + 0: False, + True: True, + False: False, + } + invalid_inputs = { + 'foo': ['`foo` is not a valid boolean.'] + } + outputs = { + 'true': True, + 'false': False, + '1': True, + '0': False, + 1: True, + 0: False, + True: True, + False: False, + 'other': True + } + field = fields.BooleanField() + + +# String types... + +class TestCharField(FieldValues): + """ + Valid and invalid values for `CharField`. + """ + valid_inputs = { + 1: '1', + 'abc': 'abc' + } + invalid_inputs = { + '': ['This field may not be blank.'] + } + outputs = { + 1: '1', + 'abc': 'abc' + } + field = fields.CharField() + + +class TestEmailField(FieldValues): + """ + Valid and invalid values for `EmailField`. + """ + valid_inputs = { + 'example@example.com': 'example@example.com', + ' example@example.com ': 'example@example.com', + } + invalid_inputs = { + 'examplecom': ['Enter a valid email address.'] + } + outputs = {} + field = fields.EmailField() + + +class TestRegexField(FieldValues): + """ + Valid and invalid values for `RegexField`. + """ + valid_inputs = { + 'a9': 'a9', + } + invalid_inputs = { + 'A9': ["This value does not match the required pattern."] + } + outputs = {} + field = fields.RegexField(regex='[a-z][0-9]') + + +class TestSlugField(FieldValues): + """ + Valid and invalid values for `SlugField`. + """ + valid_inputs = { + 'slug-99': 'slug-99', + } + invalid_inputs = { + 'slug 99': ["Enter a valid 'slug' consisting of letters, numbers, underscores or hyphens."] + } + outputs = {} + field = fields.SlugField() + + +class TestURLField(FieldValues): + """ + Valid and invalid values for `URLField`. + """ + valid_inputs = { + 'http://example.com': 'http://example.com', + } + invalid_inputs = { + 'example.com': ['Enter a valid URL.'] + } + outputs = {} + field = fields.URLField() + + +# Number types... + +class TestIntegerField(FieldValues): + """ + Valid and invalid values for `IntegerField`. + """ + valid_inputs = { + '1': 1, + '0': 0, + 1: 1, + 0: 0, + 1.0: 1, + 0.0: 0 + } + invalid_inputs = { + 'abc': ['A valid integer is required.'] + } + outputs = { + '1': 1, + '0': 0, + 1: 1, + 0: 0, + 1.0: 1, + 0.0: 0 + } + field = fields.IntegerField() + + +class TestMinMaxIntegerField(FieldValues): + """ + Valid and invalid values for `IntegerField` with min and max limits. + """ + valid_inputs = { + '1': 1, + '3': 3, + 1: 1, + 3: 3, + } + invalid_inputs = { + 0: ['Ensure this value is greater than or equal to 1.'], + 4: ['Ensure this value is less than or equal to 3.'], + '0': ['Ensure this value is greater than or equal to 1.'], + '4': ['Ensure this value is less than or equal to 3.'], + } + outputs = {} + field = fields.IntegerField(min_value=1, max_value=3) + + +class TestFloatField(FieldValues): + """ + Valid and invalid values for `FloatField`. + """ + valid_inputs = { + '1': 1.0, + '0': 0.0, + 1: 1.0, + 0: 0.0, + 1.0: 1.0, + 0.0: 0.0, + } + invalid_inputs = { + 'abc': ["A valid number is required."] + } + outputs = { + '1': 1.0, + '0': 0.0, + 1: 1.0, + 0: 0.0, + 1.0: 1.0, + 0.0: 0.0, + } + field = fields.FloatField() + + +class TestMinMaxFloatField(FieldValues): + """ + Valid and invalid values for `FloatField` with min and max limits. + """ + valid_inputs = { + '1': 1, + '3': 3, + 1: 1, + 3: 3, + 1.0: 1.0, + 3.0: 3.0, + } + invalid_inputs = { + 0.9: ['Ensure this value is greater than or equal to 1.'], + 3.1: ['Ensure this value is less than or equal to 3.'], + '0.0': ['Ensure this value is greater than or equal to 1.'], + '3.1': ['Ensure this value is less than or equal to 3.'], + } + outputs = {} + field = fields.FloatField(min_value=1, max_value=3) + + +class TestDecimalField(FieldValues): + """ + Valid and invalid values for `DecimalField`. + """ + valid_inputs = { + '12.3': Decimal('12.3'), + '0.1': Decimal('0.1'), + 10: Decimal('10'), + 0: Decimal('0'), + 12.3: Decimal('12.3'), + 0.1: Decimal('0.1'), + } + invalid_inputs = ( + ('abc', ["A valid number is required."]), + (Decimal('Nan'), ["A valid number is required."]), + (Decimal('Inf'), ["A valid number is required."]), + ('12.345', ["Ensure that there are no more than 3 digits in total."]), + ('0.01', ["Ensure that there are no more than 1 decimal places."]), + (123, ["Ensure that there are no more than 2 digits before the decimal point."]) + ) + outputs = { + '1': '1.0', + '0': '0.0', + '1.09': '1.1', + '0.04': '0.0', + 1: '1.0', + 0: '0.0', + Decimal('1.0'): '1.0', + Decimal('0.0'): '0.0', + Decimal('1.09'): '1.1', + Decimal('0.04'): '0.0', + } + field = fields.DecimalField(max_digits=3, decimal_places=1) + + +class TestMinMaxDecimalField(FieldValues): + """ + Valid and invalid values for `DecimalField` with min and max limits. + """ + valid_inputs = { + '10.0': Decimal('10.0'), + '20.0': Decimal('20.0'), + } + invalid_inputs = { + '9.9': ['Ensure this value is greater than or equal to 10.'], + '20.1': ['Ensure this value is less than or equal to 20.'], + } + outputs = {} + field = fields.DecimalField( + max_digits=3, decimal_places=1, + min_value=10, max_value=20 + ) + + +class TestNoStringCoercionDecimalField(FieldValues): + """ + Output values for `DecimalField` with `coerce_to_string=False`. + """ + valid_inputs = {} + invalid_inputs = {} + outputs = { + 1.09: Decimal('1.1'), + 0.04: Decimal('0.0'), + '1.09': Decimal('1.1'), + '0.04': Decimal('0.0'), + Decimal('1.09'): Decimal('1.1'), + Decimal('0.04'): Decimal('0.0'), + } + field = fields.DecimalField( + max_digits=3, decimal_places=1, + coerce_to_string=False + ) + + +# Date & time fields... + +class TestDateField(FieldValues): + """ + Valid and invalid values for `DateField`. + """ + valid_inputs = { + '2001-01-01': datetime.date(2001, 1, 1), + datetime.date(2001, 1, 1): datetime.date(2001, 1, 1), + } + invalid_inputs = { + 'abc': ['Date has wrong format. Use one of these formats instead: YYYY[-MM[-DD]]'], + '2001-99-99': ['Date has wrong format. Use one of these formats instead: YYYY[-MM[-DD]]'], + datetime.datetime(2001, 1, 1, 12, 00): ['Expected a date but got a datetime.'], + } + outputs = { + datetime.date(2001, 1, 1): '2001-01-01', + } + field = fields.DateField() + + +class TestCustomInputFormatDateField(FieldValues): + """ + Valid and invalid values for `DateField` with a cutom input format. + """ + valid_inputs = { + '1 Jan 2001': datetime.date(2001, 1, 1), + } + invalid_inputs = { + '2001-01-01': ['Date has wrong format. Use one of these formats instead: DD [Jan-Dec] YYYY'] + } + outputs = {} + field = fields.DateField(input_formats=['%d %b %Y']) + + +class TestCustomOutputFormatDateField(FieldValues): + """ + Values for `DateField` with a custom output format. + """ + valid_inputs = {} + invalid_inputs = {} + outputs = { + datetime.date(2001, 1, 1): '01 Jan 2001' + } + field = fields.DateField(format='%d %b %Y') + + +class TestNoOutputFormatDateField(FieldValues): + """ + Values for `DateField` with no output format. + """ + valid_inputs = {} + invalid_inputs = {} + outputs = { + datetime.date(2001, 1, 1): datetime.date(2001, 1, 1) + } + field = fields.DateField(format=None) + + +class TestDateTimeField(FieldValues): + """ + Valid and invalid values for `DateTimeField`. + """ + valid_inputs = { + '2001-01-01 13:00': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()), + '2001-01-01T13:00': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()), + '2001-01-01T13:00Z': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()), + datetime.datetime(2001, 1, 1, 13, 00): datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()), + datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()): datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()), + # Note that 1.4 does not support timezone string parsing. + '2001-01-01T14:00+01:00' if (django.VERSION > (1, 4)) else '2001-01-01T13:00Z': datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()) + } + invalid_inputs = { + 'abc': ['Datetime has wrong format. Use one of these formats instead: YYYY-MM-DDThh:mm[:ss[.uuuuuu]][+HH:MM|-HH:MM|Z]'], + '2001-99-99T99:00': ['Datetime has wrong format. Use one of these formats instead: YYYY-MM-DDThh:mm[:ss[.uuuuuu]][+HH:MM|-HH:MM|Z]'], + datetime.date(2001, 1, 1): ['Expected a datetime but got a date.'], + } + outputs = { + datetime.datetime(2001, 1, 1, 13, 00): '2001-01-01T13:00:00', + datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()): '2001-01-01T13:00:00Z', + } + field = fields.DateTimeField(default_timezone=timezone.UTC()) + + +class TestCustomInputFormatDateTimeField(FieldValues): + """ + Valid and invalid values for `DateTimeField` with a cutom input format. + """ + valid_inputs = { + '1:35pm, 1 Jan 2001': datetime.datetime(2001, 1, 1, 13, 35, tzinfo=timezone.UTC()), + } + invalid_inputs = { + '2001-01-01T20:50': ['Datetime has wrong format. Use one of these formats instead: hh:mm[AM|PM], DD [Jan-Dec] YYYY'] + } + outputs = {} + field = fields.DateTimeField(default_timezone=timezone.UTC(), input_formats=['%I:%M%p, %d %b %Y']) + + +class TestCustomOutputFormatDateTimeField(FieldValues): + """ + Values for `DateTimeField` with a custom output format. + """ + valid_inputs = {} + invalid_inputs = {} + outputs = { + datetime.datetime(2001, 1, 1, 13, 00): '01:00PM, 01 Jan 2001', + } + field = fields.DateTimeField(format='%I:%M%p, %d %b %Y') + + +class TestNoOutputFormatDateTimeField(FieldValues): + """ + Values for `DateTimeField` with no output format. + """ + valid_inputs = {} + invalid_inputs = {} + outputs = { + datetime.datetime(2001, 1, 1, 13, 00): datetime.datetime(2001, 1, 1, 13, 00), + } + field = fields.DateTimeField(format=None) + + +class TestNaiveDateTimeField(FieldValues): + """ + Valid and invalid values for `DateTimeField` with naive datetimes. + """ + valid_inputs = { + datetime.datetime(2001, 1, 1, 13, 00, tzinfo=timezone.UTC()): datetime.datetime(2001, 1, 1, 13, 00), + '2001-01-01 13:00': datetime.datetime(2001, 1, 1, 13, 00), + } + invalid_inputs = {} + outputs = {} + field = fields.DateTimeField(default_timezone=None) + + +class TestTimeField(FieldValues): + """ + Valid and invalid values for `TimeField`. + """ + valid_inputs = { + '13:00': datetime.time(13, 00), + datetime.time(13, 00): datetime.time(13, 00), + } + invalid_inputs = { + 'abc': ['Time has wrong format. Use one of these formats instead: hh:mm[:ss[.uuuuuu]]'], + '99:99': ['Time has wrong format. Use one of these formats instead: hh:mm[:ss[.uuuuuu]]'], + } + outputs = { + datetime.time(13, 00): '13:00:00' + } + field = fields.TimeField() + + +class TestCustomInputFormatTimeField(FieldValues): + """ + Valid and invalid values for `TimeField` with a custom input format. + """ + valid_inputs = { + '1:00pm': datetime.time(13, 00), + } + invalid_inputs = { + '13:00': ['Time has wrong format. Use one of these formats instead: hh:mm[AM|PM]'], + } + outputs = {} + field = fields.TimeField(input_formats=['%I:%M%p']) + + +class TestCustomOutputFormatTimeField(FieldValues): + """ + Values for `TimeField` with a custom output format. + """ + valid_inputs = {} + invalid_inputs = {} + outputs = { + datetime.time(13, 00): '01:00PM' + } + field = fields.TimeField(format='%I:%M%p') + + +class TestNoOutputFormatTimeField(FieldValues): + """ + Values for `TimeField` with a no output format. + """ + valid_inputs = {} + invalid_inputs = {} + outputs = { + datetime.time(13, 00): datetime.time(13, 00) + } + field = fields.TimeField(format=None) + + +# Choice types... + +class TestChoiceField(FieldValues): + """ + Valid and invalid values for `ChoiceField`. + """ + valid_inputs = { + 'poor': 'poor', + 'medium': 'medium', + 'good': 'good', + } + invalid_inputs = { + 'amazing': ['`amazing` is not a valid choice.'] + } + outputs = { + 'good': 'good' + } + field = fields.ChoiceField( + choices=[ + ('poor', 'Poor quality'), + ('medium', 'Medium quality'), + ('good', 'Good quality'), + ] + ) + + +class TestChoiceFieldWithType(FieldValues): + """ + Valid and invalid values for a `Choice` field that uses an integer type, + instead of a char type. + """ + valid_inputs = { + '1': 1, + 3: 3, + } + invalid_inputs = { + 5: ['`5` is not a valid choice.'], + 'abc': ['`abc` is not a valid choice.'] + } + outputs = { + '1': 1, + 1: 1 + } + field = fields.ChoiceField( + choices=[ + (1, 'Poor quality'), + (2, 'Medium quality'), + (3, 'Good quality'), + ] + ) + + +class TestChoiceFieldWithListChoices(FieldValues): + """ + Valid and invalid values for a `Choice` field that uses a flat list for the + choices, rather than a list of pairs of (`value`, `description`). + """ + valid_inputs = { + 'poor': 'poor', + 'medium': 'medium', + 'good': 'good', + } + invalid_inputs = { + 'awful': ['`awful` is not a valid choice.'] + } + outputs = { + 'good': 'good' + } + field = fields.ChoiceField(choices=('poor', 'medium', 'good')) + + +class TestMultipleChoiceField(FieldValues): + """ + Valid and invalid values for `MultipleChoiceField`. + """ + valid_inputs = { + (): set(), + ('aircon',): set(['aircon']), + ('aircon', 'manual'): set(['aircon', 'manual']), + } + invalid_inputs = { + 'abc': ['Expected a list of items but got type `str`'], + ('aircon', 'incorrect'): ['`incorrect` is not a valid choice.'] + } + outputs = [ + (['aircon', 'manual'], set(['aircon', 'manual'])) + ] + field = fields.MultipleChoiceField( + choices=[ + ('aircon', 'AirCon'), + ('manual', 'Manual drive'), + ('diesel', 'Diesel'), + ] + ) |