@Test
public void new_getFieldTypeTest() {
int length = 100;
String name = "td";
TupleDesc td = Utility.getTupleDesc(length, name);
// Lower than index bound.
try {
td.getFieldType(length + 1);
fail("expected exception");
} catch (NoSuchElementException e) {
}
// Higher than index bound.
try {
td.getFieldType(-1);
fail("expected exception");
} catch (NoSuchElementException e) {
}
// Check each name.
for (int i = 0; i < length; i++) {
assertEquals(Type.INT_TYPE, td.getFieldType(i));
}
}
/** 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);
}
/** Unit test for TupleDesc.getType() */
@Test
public void getType() {
int[] lengths = new int[] {1, 2, 1000};
for (int len : lengths) {
TupleDesc td = Utility.getTupleDesc(len);
for (int i = 0; i < len; ++i) assertEquals(Type.INT_TYPE, td.getFieldType(i));
}
}