def test_alias_method_columns(self):
        expr = func.rows("foo").alias("bar")

        # this isn't very useful but is the old behavior
        # prior to #2974.
        # testing here that the expression exports its column
        # list in a way that at least doesn't break.
        self.assert_compile(
            select([expr]), "SELECT bar.rows_1 FROM rows(:rows_2) AS bar"
        )

 def test_alias_method_columns_two(self):
     expr = func.rows("foo").alias('bar')
     assert len(expr.c)

 def test_alias_method_two(self):
     expr = func.rows("foo")
     self.assert_compile(
         select(['*']).select_from(expr.alias('bar')),
         "SELECT * FROM rows(:rows_1) AS bar"
     )

 def test_select_method_three(self):
     expr = func.rows("foo")
     self.assert_compile(
         select([column('foo')]).select_from(expr),
         "SELECT foo FROM rows(:rows_1)"
     )

 def test_select_method_two(self):
     expr = func.rows("foo")
     self.assert_compile(
         select(['*']).select_from(expr.select()),
         "SELECT * FROM (SELECT rows(:rows_2) AS rows_1)"
     )

 def test_alias_method_one(self):
     expr = func.rows("foo")
     self.assert_compile(
         expr.alias(),
         "rows(:rows_1)"
     )

 def test_select_method_one(self):
     expr = func.rows("foo")
     self.assert_compile(
         expr.select(),
         "SELECT rows(:rows_2) AS rows_1"
     )