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Filename :
test_autogen_comments.py
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from sqlalchemy import Column from sqlalchemy import Float from sqlalchemy import MetaData from sqlalchemy import String from sqlalchemy import Table from ._autogen_fixtures import AutogenFixtureTest from ...testing import eq_ from ...testing import mock from ...testing import TestBase class AutogenerateCommentsTest(AutogenFixtureTest, TestBase): __backend__ = True __requires__ = ("comments",) def test_existing_table_comment_no_change(self): m1 = MetaData() m2 = MetaData() Table( "some_table", m1, Column("test", String(10), primary_key=True), comment="this is some table", ) Table( "some_table", m2, Column("test", String(10), primary_key=True), comment="this is some table", ) diffs = self._fixture(m1, m2) eq_(diffs, []) def test_add_table_comment(self): m1 = MetaData() m2 = MetaData() Table("some_table", m1, Column("test", String(10), primary_key=True)) Table( "some_table", m2, Column("test", String(10), primary_key=True), comment="this is some table", ) diffs = self._fixture(m1, m2) eq_(diffs[0][0], "add_table_comment") eq_(diffs[0][1].comment, "this is some table") eq_(diffs[0][2], None) def test_remove_table_comment(self): m1 = MetaData() m2 = MetaData() Table( "some_table", m1, Column("test", String(10), primary_key=True), comment="this is some table", ) Table("some_table", m2, Column("test", String(10), primary_key=True)) diffs = self._fixture(m1, m2) eq_(diffs[0][0], "remove_table_comment") eq_(diffs[0][1].comment, None) def test_alter_table_comment(self): m1 = MetaData() m2 = MetaData() Table( "some_table", m1, Column("test", String(10), primary_key=True), comment="this is some table", ) Table( "some_table", m2, Column("test", String(10), primary_key=True), comment="this is also some table", ) diffs = self._fixture(m1, m2) eq_(diffs[0][0], "add_table_comment") eq_(diffs[0][1].comment, "this is also some table") eq_(diffs[0][2], "this is some table") def test_existing_column_comment_no_change(self): m1 = MetaData() m2 = MetaData() Table( "some_table", m1, Column("test", String(10), primary_key=True), Column("amount", Float, comment="the amount"), ) Table( "some_table", m2, Column("test", String(10), primary_key=True), Column("amount", Float, comment="the amount"), ) diffs = self._fixture(m1, m2) eq_(diffs, []) def test_add_column_comment(self): m1 = MetaData() m2 = MetaData() Table( "some_table", m1, Column("test", String(10), primary_key=True), Column("amount", Float), ) Table( "some_table", m2, Column("test", String(10), primary_key=True), Column("amount", Float, comment="the amount"), ) diffs = self._fixture(m1, m2) eq_( diffs, [ [ ( "modify_comment", None, "some_table", "amount", { "existing_nullable": True, "existing_type": mock.ANY, "existing_server_default": False, }, None, "the amount", ) ] ], ) def test_remove_column_comment(self): m1 = MetaData() m2 = MetaData() Table( "some_table", m1, Column("test", String(10), primary_key=True), Column("amount", Float, comment="the amount"), ) Table( "some_table", m2, Column("test", String(10), primary_key=True), Column("amount", Float), ) diffs = self._fixture(m1, m2) eq_( diffs, [ [ ( "modify_comment", None, "some_table", "amount", { "existing_nullable": True, "existing_type": mock.ANY, "existing_server_default": False, }, "the amount", None, ) ] ], ) def test_alter_column_comment(self): m1 = MetaData() m2 = MetaData() Table( "some_table", m1, Column("test", String(10), primary_key=True), Column("amount", Float, comment="the amount"), ) Table( "some_table", m2, Column("test", String(10), primary_key=True), Column("amount", Float, comment="the adjusted amount"), ) diffs = self._fixture(m1, m2) eq_( diffs, [ [ ( "modify_comment", None, "some_table", "amount", { "existing_nullable": True, "existing_type": mock.ANY, "existing_server_default": False, }, "the amount", "the adjusted amount", ) ] ], )