def test_validate_good(self):
f = self.f
g = self.g
NumericalExpression("x_0", (f, ), dtype=float64_dtype)
NumericalExpression("x_0 ", (f, ), dtype=float64_dtype)
NumericalExpression("x_0 + x_0", (f, ), dtype=float64_dtype)
NumericalExpression("x_0 + 2", (f, ), dtype=float64_dtype)
NumericalExpression("2 * x_0", (f, ), dtype=float64_dtype)
NumericalExpression("x_0 + x_1", (f, g), dtype=float64_dtype)
NumericalExpression("x_0 + x_1 + x_0", (f, g), dtype=float64_dtype)
NumericalExpression("x_0 + 1 + x_1", (f, g), dtype=float64_dtype)
def test_validate_good(self):
f = self.f
g = self.g
NumericalExpression("x_0", (f, ))
NumericalExpression("x_0 ", (f, ))
NumericalExpression("x_0 + x_0", (f, ))
NumericalExpression("x_0 + 2", (f, ))
NumericalExpression("2 * x_0", (f, ))
NumericalExpression("x_0 + x_1", (f, g))
NumericalExpression("x_0 + x_1 + x_0", (f, g))
NumericalExpression("x_0 + 1 + x_1", (f, g))
def test_validate_bad(self):
f, g, h = self.f, self.g, self.h
# Too few inputs.
with self.assertRaises(ValueError):
NumericalExpression("x_0", (), dtype=float64_dtype)
with self.assertRaises(ValueError):
NumericalExpression("x_0 + x_1", (f, ), dtype=float64_dtype)
# Too many inputs.
with self.assertRaises(ValueError):
NumericalExpression("x_0", (f, g), dtype=float64_dtype)
with self.assertRaises(ValueError):
NumericalExpression("x_0 + x_1", (f, g, h), dtype=float64_dtype)
# Invalid variable name.
with self.assertRaises(ValueError):
NumericalExpression("x_0x_1", (f, ), dtype=float64_dtype)
with self.assertRaises(ValueError):
NumericalExpression("x_0x_1", (f, g), dtype=float64_dtype)
# Variable index must start at 0.
with self.assertRaises(ValueError):
NumericalExpression("x_1", (f, ), dtype=float64_dtype)
# Scalar operands must be numeric.
with self.assertRaises(TypeError):
"2" + f
with self.assertRaises(TypeError):
f + "2"
with self.assertRaises(TypeError):
f > "2"
# Boolean binary operators must be between filters.
with self.assertRaises(TypeError):
f + (f > 2)
with self.assertRaises(TypeError):
(f > f) > f