}
		}
		checkMulIndex = func(t *testing.T) {
			checkColumnType(t, "name", false)
			checkColumnType(t, "nick_name", false)
			if !DB.Migrator().HasIndex(table, mulIndex.Name()) {
				t.Errorf("%v: should has index %s but not", utils.FileWithLineNum(), mulIndex.Name())
			}
		}
	}

	tests := []TestCase{
		{name: "notUnique to notUnique", from: &UniqueStruct1{}, to: &UniqueStruct2{}, checkFunc: checkNotUnique},