(self)
| 372 | self.assertTrue(math.isnan(math.cbrt(NAN))) |
| 373 | |
| 374 | def testCeil(self): |
| 375 | self.assertRaises(TypeError, math.ceil) |
| 376 | self.assertEqual(int, type(math.ceil(0.5))) |
| 377 | self.assertEqual(math.ceil(0.5), 1) |
| 378 | self.assertEqual(math.ceil(1.0), 1) |
| 379 | self.assertEqual(math.ceil(1.5), 2) |
| 380 | self.assertEqual(math.ceil(-0.5), 0) |
| 381 | self.assertEqual(math.ceil(-1.0), -1) |
| 382 | self.assertEqual(math.ceil(-1.5), -1) |
| 383 | self.assertEqual(math.ceil(0.0), 0) |
| 384 | self.assertEqual(math.ceil(-0.0), 0) |
| 385 | #self.assertEqual(math.ceil(INF), INF) |
| 386 | #self.assertEqual(math.ceil(NINF), NINF) |
| 387 | #self.assertTrue(math.isnan(math.ceil(NAN))) |
| 388 | |
| 389 | class TestCeil: |
| 390 | def __ceil__(self): |
| 391 | return 42 |
| 392 | class FloatCeil(float): |
| 393 | def __ceil__(self): |
| 394 | return 42 |
| 395 | class TestNoCeil: |
| 396 | pass |
| 397 | class TestBadCeil: |
| 398 | __ceil__ = BadDescr() |
| 399 | self.assertEqual(math.ceil(TestCeil()), 42) |
| 400 | self.assertEqual(math.ceil(FloatCeil()), 42) |
| 401 | self.assertEqual(math.ceil(FloatLike(42.5)), 43) |
| 402 | self.assertRaises(TypeError, math.ceil, TestNoCeil()) |
| 403 | self.assertRaises(ValueError, math.ceil, TestBadCeil()) |
| 404 | |
| 405 | t = TestNoCeil() |
| 406 | t.__ceil__ = lambda *args: args |
| 407 | self.assertRaises(TypeError, math.ceil, t) |
| 408 | self.assertRaises(TypeError, math.ceil, t, 0) |
| 409 | |
| 410 | self.assertEqual(math.ceil(FloatLike(+1.0)), +1.0) |
| 411 | self.assertEqual(math.ceil(FloatLike(-1.0)), -1.0) |
| 412 | |
| 413 | @requires_IEEE_754 |
| 414 | def testCopysign(self): |
nothing calls this directly
no test coverage detected