Method testNullData

test/IECore/CompoundDataTest.cpp:139–230

	}

	void testNullData()
	{
		CompoundDataPtr d = new CompoundData();
		d->writable()["floatElement"] = new FloatData( 42.0f );
		d->writable()["stringElement"] = new StringData( "cake" );

		// sanity check first.
		try
		{
			CompoundDataPtr dd = d->copy();
		}
		catch ( std::exception & )
		{
			BOOST_CHECK( !"Exception thrown during CompoundData copy." );
		}

		CompoundDataPtr c = new CompoundData();
		c->writable()["nullElement"] = 0;

		// copy
		try
		{
			CompoundDataPtr cCopy = c->copy();

			BOOST_CHECK( !"Exception not thrown during copy with invalid NULL data." );
		}
		catch ( std::exception & )
		{
		}

		// save
		try
		{
			IndexedIOPtr io = new MemoryIndexedIO( NULL, IndexedIO::rootPath, IndexedIO::Write);
			IndexedIO::EntryID entryName( "test" );
			c->Object::save( io, entryName );

			BOOST_CHECK( !"Exception not thrown during save with invalid NULL data." );
		}
		catch ( std::exception & )
		{
		}

		// memoryUsage
		try
		{
			c->Object::memoryUsage();
		}
		catch ( std::exception & )
		{
			BOOST_CHECK( !"Exception thrown during memoryCopy with invalid NULL data." );
		}

		// isEqual
		try
		{
			CompoundDataPtr c2 = new CompoundData();
			c2->writable()["nullElement"] = 0;