def test_is_number_returns_false_for_non_numeric_words(self):
self.assertFalse(spellscream.is_number("apple"))
self.assertFalse(spellscream.is_number("juice"))
self.assertFalse(spellscream.is_number("x86"))
self.assertFalse(spellscream.is_number("ARM"))
self.assertFalse(spellscream.is_number("bi-tap"))
self.assertFalse(spellscream.is_number("left4dead"))
def test_number_detection_on_real_world_numbers(self):
self.assertTrue(spellscream.is_number("1"))
self.assertTrue(spellscream.is_number("-2"))
self.assertTrue(spellscream.is_number("30"))
self.assertTrue(spellscream.is_number("4.0"))
self.assertTrue(spellscream.is_number("500"))
self.assertTrue(spellscream.is_number("6000"))
self.assertTrue(spellscream.is_number("7,000"))
self.assertTrue(spellscream.is_number("8.000"))
self.assertTrue(spellscream.is_number("9,000.00"))
self.assertTrue(spellscream.is_number("9.000,00"))
self.assertTrue(spellscream.is_number("$9,000.00"))
self.assertTrue(spellscream.is_number("$9.000,00"))
self.assertTrue(spellscream.is_number("-$9,000.00"))
self.assertTrue(spellscream.is_number("-$9.000,00"))
def test_is_number_returns_false_for_empty_string(self):
self.assertFalse(spellscream.is_number(""))
