def test_true_1(self):
     self.assertTrue(is_valid_coordinates('-23, 25'))
 def test_true_2(self):
     self.assertTrue(is_valid_coordinates('4, -3'))
 def test_false_7(self):
     self.assertFalse(is_valid_coordinates('0.342q0832, 1.2324'))
 def test_false_8(self):
     self.assertFalse(is_valid_coordinates('23.245, 1e1'))
 def test_false_5(self):
     self.assertFalse(is_valid_coordinates('6.325624, 43.34345.345'))
 def test_false_6(self):
     self.assertFalse(is_valid_coordinates('0, 1,2'))
 def test_false_3(self):
     self.assertFalse(is_valid_coordinates('N23.43345, E32.6457'))
 def test_false_4(self):
     self.assertFalse(is_valid_coordinates('99.234, 12.324'))
 def test_false_2(self):
     self.assertFalse(is_valid_coordinates('2342.43536, 34.324236'))
 def test_false_1(self):
     self.assertFalse(is_valid_coordinates('23.234, - 23.4234'))
 def test_true_5(self):
     self.assertTrue(is_valid_coordinates('43.91343345, 143'))
 def test_true_4(self):
     self.assertTrue(is_valid_coordinates('04, -23.234235'))
 def test_true_3(self):
     self.assertTrue(is_valid_coordinates('24.53525235, 23.45235'))