Unit test for TupleDesc.combine()
()
| 19 | * Unit test for TupleDesc.combine() |
| 20 | */ |
| 21 | @Test public void combine() { |
| 22 | TupleDesc td1, td2, td3; |
| 23 | |
| 24 | td1 = Utility.getTupleDesc(1, "td1"); |
| 25 | td2 = Utility.getTupleDesc(2, "td2"); |
| 26 | |
| 27 | // test td1.combine(td2) |
| 28 | td3 = TupleDesc.merge(td1, td2); |
| 29 | assertEquals(3 , td3.numFields()); |
| 30 | assertEquals(3 * Type.INT_TYPE.getLen(), td3.getSize()); |
| 31 | for (int i = 0; i < 3; ++i) |
| 32 | assertEquals(Type.INT_TYPE, td3.getFieldType(i)); |
| 33 | assertTrue(combinedStringArrays(td1, td2, td3)); |
| 34 | |
| 35 | // test td2.combine(td1) |
| 36 | td3 = TupleDesc.merge(td2, td1); |
| 37 | assertEquals(3 , td3.numFields()); |
| 38 | assertEquals(3 * Type.INT_TYPE.getLen(), td3.getSize()); |
| 39 | for (int i = 0; i < 3; ++i) |
| 40 | assertEquals(Type.INT_TYPE, td3.getFieldType(i)); |
| 41 | assertTrue(combinedStringArrays(td2, td1, td3)); |
| 42 | |
| 43 | // test td2.combine(td2) |
| 44 | td3 = TupleDesc.merge(td2, td2); |
| 45 | assertEquals(4 , td3.numFields()); |
| 46 | assertEquals(4 * Type.INT_TYPE.getLen(), td3.getSize()); |
| 47 | for (int i = 0; i < 4; ++i) |
| 48 | assertEquals(Type.INT_TYPE, td3.getFieldType(i)); |
| 49 | assertTrue(combinedStringArrays(td2, td2, td3)); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Ensures that combined's field names = td1's field names + td2's field names |
nothing calls this directly
no test coverage detected