/** Unit test for TupleDesc.combine() */ @Test public void combine() { TupleDesc td1, td2, td3; td1 = Utility.getTupleDesc(1, "td1"); td2 = Utility.getTupleDesc(2, "td2"); // test td1.combine(td2) td3 = TupleDesc.merge(td1, td2); assertEquals(3, td3.numFields()); assertEquals(3 * Type.INT_TYPE.getLen(), td3.getSize()); for (int i = 0; i < 3; ++i) assertEquals(Type.INT_TYPE, td3.getFieldType(i)); assertEquals(combinedStringArrays(td1, td2, td3), true); // test td2.combine(td1) td3 = TupleDesc.merge(td2, td1); assertEquals(3, td3.numFields()); assertEquals(3 * Type.INT_TYPE.getLen(), td3.getSize()); for (int i = 0; i < 3; ++i) assertEquals(Type.INT_TYPE, td3.getFieldType(i)); assertEquals(combinedStringArrays(td2, td1, td3), true); // test td2.combine(td2) td3 = TupleDesc.merge(td2, td2); assertEquals(4, td3.numFields()); assertEquals(4 * Type.INT_TYPE.getLen(), td3.getSize()); for (int i = 0; i < 4; ++i) assertEquals(Type.INT_TYPE, td3.getFieldType(i)); assertEquals(combinedStringArrays(td2, td2, td3), true); }