def test_expr_function_arity(self):
# Compile with the correct number of arguments.
qc.compile_expression(qp.Function('sum', [qp.Column('number')]),
qe.TargetsEnvironment())
# Compile with an incorrect number of arguments.
with self.assertRaises(qc.CompilationError):
qc.compile_expression(
qp.Function('sum', [qp.Column('date'),
qp.Column('account')]),
qe.TargetsEnvironment())
def test_expr_binaryop(self):
self.assertEqual(
qc.EvalEqual(qe.DateColumn(),
qc.EvalConstant(datetime.date(2014, 1, 1))),
qc.compile_expression(
qp.Equal(qp.Column('date'),
qp.Constant(datetime.date(2014, 1, 1))),
qe.TargetsEnvironment()))
def test_expr_constant(self):
self.assertEqual(
qc.EvalConstant(D(17)),
qc.compile_expression(qp.Constant(D(17)), qe.TargetsEnvironment()))
def test_expr_unaryop(self):
self.assertEqual(
qc.EvalNot(qe.AccountColumn()),
qc.compile_expression(qp.Not(qp.Column('account')),
qe.TargetsEnvironment()))
def test_expr_function(self):
self.assertEqual(
qe.SumPosition([qe.PositionColumn()]),
qc.compile_expression(qp.Function('sum', [qp.Column('position')]),
qe.TargetsEnvironment()))
def test_expr_column(self):
self.assertEqual(
qe.FilenameColumn(),
qc.compile_expression(qp.Column('filename'),
qe.TargetsEnvironment()))
def test_expr_invalid(self):
with self.assertRaises(qc.CompilationError):
qc.compile_expression(qp.Column('invalid'),
qe.TargetsEnvironment())