(self)
| 4421 | class IEEEContexts: |
| 4422 | |
| 4423 | def test_ieee_context(self): |
| 4424 | # issue 8786: Add support for IEEE 754 contexts to decimal module. |
| 4425 | IEEEContext = self.decimal.IEEEContext |
| 4426 | |
| 4427 | def assert_rest(self, context): |
| 4428 | self.assertEqual(context.clamp, 1) |
| 4429 | assert_signals(self, context, 'traps', []) |
| 4430 | assert_signals(self, context, 'flags', []) |
| 4431 | |
| 4432 | c = IEEEContext(32) |
| 4433 | self.assertEqual(c.prec, 7) |
| 4434 | self.assertEqual(c.Emax, 96) |
| 4435 | self.assertEqual(c.Emin, -95) |
| 4436 | assert_rest(self, c) |
| 4437 | |
| 4438 | c = IEEEContext(64) |
| 4439 | self.assertEqual(c.prec, 16) |
| 4440 | self.assertEqual(c.Emax, 384) |
| 4441 | self.assertEqual(c.Emin, -383) |
| 4442 | assert_rest(self, c) |
| 4443 | |
| 4444 | c = IEEEContext(128) |
| 4445 | self.assertEqual(c.prec, 34) |
| 4446 | self.assertEqual(c.Emax, 6144) |
| 4447 | self.assertEqual(c.Emin, -6143) |
| 4448 | assert_rest(self, c) |
| 4449 | |
| 4450 | # Invalid values |
| 4451 | self.assertRaises(ValueError, IEEEContext, -1) |
| 4452 | self.assertRaises(ValueError, IEEEContext, 123) |
| 4453 | self.assertRaises(ValueError, IEEEContext, 1024) |
| 4454 | |
| 4455 | def test_constants(self): |
| 4456 | # IEEEContext |
nothing calls this directly
no test coverage detected