/** 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);
}
// Test mix of INT_TYPE and STRING_TYPE.
@Test
public void new_getSizeTest() {
Type[] typeAr = new Type[] {Type.INT_TYPE, Type.INT_TYPE, Type.STRING_TYPE, Type.STRING_TYPE};
String[] fieldAr = new String[] {"number0", "number1", "string0", "string1"};
TupleDesc td = new TupleDesc(typeAr, fieldAr);
int length = 2 * Type.INT_TYPE.getLen() + 2 * Type.STRING_TYPE.getLen();
assertEquals(length, td.getSize());
}
/** Unit test for TupleDesc.getSize() */
@Test
public void getSize() {
int[] lengths = new int[] {1, 2, 1000};
for (int len : lengths) {
TupleDesc td = Utility.getTupleDesc(len);
assertEquals(len * Type.INT_TYPE.getLen(), td.getSize());
}
}