Test array field creation and retrieval.

When all values are provided, cached query path is used (no DEFAULT keyword).

CreateModel creates a real table; DeleteModel drops it.

CreateModel should include DEFAULT clause for fields with db_default.

CREATE TABLE should use inline UNIQUE for unique fields.

Regression test: CreateModel should not raise when the FK target model hasn't been added to state yet (simulates alphabetical ordering where e

Base editor's create_schema is a no-op.

CreateSchema backward calls drop_schema.

CreateSchema operation calls schema_editor.create_schema().

Test deprecated create_unique_index parameter behavior.

Models with fetch_db_defaults=False still emit DEFAULT keyword. On RETURNING backends (sqlite, pg), values are populated via RETURNING

Test date field accepts ISO format string.

Test creating date fields.

Test getting by date field.

Test date field with string input and filtering/updating.

Test date field in values() query.

Test date field in values_list() query.

Test auto_now/auto_now_add on instance match DB when use_tz=False.

Test auto_now_add value on instance after create() matches what DB returns. Note: MSSQL (DATETIME2) and MySQL (DATETIME) use timezone-naive colum

Test auto_now_add produces naive datetime with use_tz=False.

Test auto_now value on instance after save() matches what DB returns. Note: MSSQL (DATETIME2) and MySQL (DATETIME) use timezone-naive columns.

Test auto_now produces naive datetime with use_tz=False.

Test aware datetime behavior is unchanged with use_tz=True.

Test that setting both auto_now and auto_now_add raises ConfigurationError.

Test datetime field accepts ISO format string.

Test count queries with datetime fields.

Test creating datetime fields and auto_now/auto_now_add behavior.

Test default timezone is UTC when use_tz=True.

Test filtering by datetime field.

Test filtering datetime by year, month, and day.

Test getting datetime using timezone.now().

Test getting datetime using UTC now with use_tz=True.

Test naive datetime survives round-trip with use_tz=False.

Test setting a custom timezone via environment variable with use_tz=True.

Test timezone handling with USE_TZ enabled.

Test two DatetimeFields with naive datetimes (issue #631 reproduction).

Test updating datetime fields via filter().update() with use_tz=True.

Test datetime field in values() query.

Test datetime field in values_list() query.

Test DatetimeField with only auto_now_add=True.

Test DatetimeField with only auto_now=True.

Test DatetimeField raises when both auto_now and auto_now_add are True.

Test that auto_now sets readOnly constraint.

Test that auto_now_add sets readOnly constraint.

Test that neither flag sets no readOnly constraint.

Test DatetimeField with neither flag set.

None is a valid db_default (maps to DEFAULT NULL).

0 is a valid db_default, not to be confused with sentinel.