@Test
public void testNullableVarCharVectorLoad() {
final MaterializedField field =
MaterializedField.create(EMPTY_SCHEMA_PATH, NullableVarCharHolder.TYPE);
// Create a new value vector for 1024 nullable variable length strings.
final NullableVarCharVector vector1 = new NullableVarCharVector(field, allocator);
final NullableVarCharVector.Mutator mutator = vector1.getMutator();
vector1.allocateNew(1024 * 10, 1024);
// Populate the vector.
final StringBuilder stringBuilder = new StringBuilder();
final int valueCount = 10;
for (int i = 0; i < valueCount; ++i) {
stringBuilder.append('x');
mutator.set(i, stringBuilder.toString().getBytes(utf8Charset));
}
// Check the contents.
final NullableVarCharVector.Accessor accessor1 = vector1.getAccessor();
stringBuilder.setLength(0);
for (int i = 0; i < valueCount; ++i) {
stringBuilder.append('x');
final Object object = accessor1.getObject(i);
assertEquals(stringBuilder.toString(), object.toString());
}
mutator.setValueCount(valueCount);
assertEquals(valueCount, vector1.getAccessor().getValueCount());
// Still ok after setting value count?
stringBuilder.setLength(0);
for (int i = 0; i < valueCount; ++i) {
stringBuilder.append('x');
final Object object = accessor1.getObject(i);
assertEquals(stringBuilder.toString(), object.toString());
}
// Combine into a single buffer so we can load it into a new vector.
final DrillBuf[] buffers1 = vector1.getBuffers(false);
final DrillBuf buffer1 = combineBuffers(allocator, buffers1);
final NullableVarCharVector vector2 = new NullableVarCharVector(field, allocator);
vector2.load(vector1.getMetadata(), buffer1);
// Check the vector's contents.
final NullableVarCharVector.Accessor accessor2 = vector2.getAccessor();
stringBuilder.setLength(0);
for (int i = 0; i < valueCount; ++i) {
stringBuilder.append('x');
final Object object = accessor2.getObject(i);
assertEquals(stringBuilder.toString(), object.toString());
}
vector1.close();
vector2.close();
buffer1.release();
}
