91 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
defmodule Ecto.Integration.AlterTest do
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  use Ecto.Integration.Case, async: false
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  alias Ecto.Integration.PoolRepo
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  defmodule AlterMigrationOne do
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    use Ecto.Migration
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    def up do
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      create table(:alter_col_type) do
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        add :value, :integer
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      end
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      execute "INSERT INTO alter_col_type (value) VALUES (1)"
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    end
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    def down do
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      drop table(:alter_col_type)
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    end
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  end
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  defmodule AlterMigrationTwo do
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    use Ecto.Migration
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    def up do
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      alter table(:alter_col_type) do
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        modify :value, :numeric
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      end
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    end
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    def down do
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      alter table(:alter_col_type) do
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        modify :value, :integer
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      end
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    end
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  end
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  import Ecto.Query, only: [from: 1, from: 2]
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  defp run(direction, repo, module) do
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    Ecto.Migration.Runner.run(repo, repo.config(), 1, module, :forward, direction, direction, log: false)
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  end
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  test "reset cache on returning query after alter column type" do
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    values = from v in "alter_col_type", select: v.value
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    assert :ok == run(:up, PoolRepo, AlterMigrationOne)
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    assert PoolRepo.all(values) == [1]
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    assert :ok == run(:up, PoolRepo, AlterMigrationTwo)
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    [%Decimal{}] = PoolRepo.all(values)
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    PoolRepo.transaction(fn() ->
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      assert [%Decimal{}] = PoolRepo.all(values)
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      assert :ok == run(:down, PoolRepo, AlterMigrationTwo)
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      # Optionally fail once with database error when
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      # already prepared on connection (and clear cache)
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      try do
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        PoolRepo.all(values, [mode: :savepoint])
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      rescue
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        _ ->
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          assert PoolRepo.all(values) == [1]
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      else
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        result ->
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          assert result == [1]
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      end
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    end)
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  after
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    assert :ok == run(:down, PoolRepo, AlterMigrationOne)
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  end
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  test "reset cache on parameterized query after alter column type" do
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    values = from v in "alter_col_type"
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    assert :ok == run(:up, PoolRepo, AlterMigrationOne)
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    assert PoolRepo.update_all(values, [set: [value: 2]]) == {1, nil}
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    assert :ok == run(:up, PoolRepo, AlterMigrationTwo)
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    assert PoolRepo.update_all(values, [set: [value: 3]]) == {1, nil}
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    PoolRepo.transaction(fn() ->
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      assert PoolRepo.update_all(values, [set: [value: Decimal.new(5)]]) == {1, nil}
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      assert :ok == run(:down, PoolRepo, AlterMigrationTwo)
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      assert PoolRepo.update_all(values, [set: [value: 6]]) == {1, nil}
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    end)
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  after
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    assert :ok == run(:down, PoolRepo, AlterMigrationOne)
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  end
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end
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