def test_build_onclause_3(self):
"""Verify build_onclause() builds onclause with conserved direction.
build_onclause() should build form primary key to foreign key.
"""
onclause = querying.build_onclause(self.graph, "phage", "gene")
self.assertEqual(onclause.left.table, self.phage)
self.assertEqual(onclause.right.table, self.gene)
def test_build_onclause_2(self):
"""Verify build_onclause() detects table redundencies
"""
graph = querying.build_graph(self.metadata)
table = querying.build_onclause(graph, "phage", "phage")
self.assertEqual(table, self.phage)
def test_build_onclause_1(self, TranslateTable):
TranslateTable.return_value = "phage"
graph = querying.build_graph(self.metadata)
table = querying.build_onclause(graph, "phage", "phage")
TranslateTable.assert_called_with(self.metadata, "phage")
self.assertEqual(table, self.phage)
def test_build_onclause_1(self, translate_table_mock):
"""Verify translate_table() is called with the correct parameters.
"""
translate_table_mock.return_value = "phage"
graph = querying.build_graph(self.metadata)
table = querying.build_onclause(graph, "phage", "phage")
translate_table_mock.assert_called_with(self.metadata, "phage")
def test_build_onclause_4(self):
"""Verify build_onclause() raises KeyError when Tables are not linked.
"""
with self.assertRaises(KeyError):
querying.build_onclause(self.graph, "gene", "trna")
def test_build_onclause_1(self):
"""Verify build_onclause() returns a BinaryExpression object.
"""
onclause = querying.build_onclause(self.graph, "gene", "phage")
self.assertTrue(isinstance(onclause, BinaryExpression))
def test_build_onclause_2(self):
graph = querying.build_graph(self.metadata)
querying.build_onclause(graph, "phage", "gene")
