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43 lines
1.3 KiB
43 lines
1.3 KiB
1 year ago
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"""Test against the builders in the op.* module."""
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from sqlalchemy import Column
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from sqlalchemy import event
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from sqlalchemy import Integer
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from sqlalchemy import String
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from sqlalchemy import Table
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from sqlalchemy.sql import text
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from ...testing.fixtures import AlterColRoundTripFixture
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from ...testing.fixtures import TestBase
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@event.listens_for(Table, "after_parent_attach")
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def _add_cols(table, metadata):
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if table.name == "tbl_with_auto_appended_column":
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table.append_column(Column("bat", Integer))
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class BackendAlterColumnTest(AlterColRoundTripFixture, TestBase):
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__backend__ = True
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def test_rename_column(self):
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self._run_alter_col({}, {"name": "newname"})
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def test_modify_type_int_str(self):
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self._run_alter_col({"type": Integer()}, {"type": String(50)})
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def test_add_server_default_int(self):
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self._run_alter_col({"type": Integer}, {"server_default": text("5")})
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def test_modify_server_default_int(self):
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self._run_alter_col(
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{"type": Integer, "server_default": text("2")},
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{"server_default": text("5")},
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)
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def test_modify_nullable_to_non(self):
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self._run_alter_col({}, {"nullable": False})
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def test_modify_non_nullable_to_nullable(self):
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self._run_alter_col({"nullable": False}, {"nullable": True})
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