| package groovy |
| |
| class DoubleOperationTest extends GroovyTestCase { |
| |
| def x |
| def y |
| |
| void testPlus() { |
| x = 2.1 + 2.1 |
| assert x == 4.2 |
| |
| x = 3 + 2.2 |
| assert x == 5.2 |
| |
| x = 2.2 + 4 |
| assert x == 6.2 |
| |
| y = x + 1 |
| assert y == 7.2 |
| |
| def z = y + x + 1 + 2 |
| assert z == 16.4 |
| } |
| |
| void testMinus() { |
| x = 6 - 2.2 |
| assert x == 3.8 |
| |
| x = 5.8 - 2 |
| assert x == 3.8 |
| |
| y = x - 1 |
| assert y == 2.8 |
| } |
| |
| void testMultiply() { |
| x = 3 * 2.0 |
| assert x == 6.0 |
| |
| x = 3.0 * 2 |
| assert x == 6.0 |
| |
| x = 3.0 * 2.0 |
| assert x == 6.0 |
| y = x * 2 |
| assert y == 12.0 |
| } |
| |
| void testDivide() { |
| x = 80.0 / 4 |
| assert x == 20.0 , "x = " + x |
| |
| x = 80 / 4.0 |
| assert x == 20.0 , "x = " + x |
| |
| y = x / 2 |
| assert y == 10.0 , "y = " + y |
| } |
| |
| void testMethodNotFound() { |
| try { |
| println( Math.sin("foo", 7) ); |
| fail("Should catch a MissingMethodException"); |
| } catch (MissingMethodException mme) { |
| } |
| } |
| |
| void testCoerce() { |
| def xyz = Math.sin(1.1); |
| assert xyz instanceof Double; |
| assert xyz == Math.sin(1.1D); |
| |
| //Note that (7.3F).doubleValue() != 7.3D |
| x = Math.sin(7.3F); |
| assert x instanceof Double; |
| assert x == Math.sin((7.3F).doubleValue()); |
| |
| x = Math.sin(7); |
| assert x instanceof Double; |
| assert x == Math.sin(7.0D); |
| } |
| } |