Test Case '-[SwiftCovariantCopyTests.SwiftCovariantCopyTests testCopyWithoutAppend10M]' passed (0.624 seconds). Test Case '-[SwiftCovariantCopyTests.SwiftCovariantCopyTests testCopyWithAppend10M]' passed (2.282 seconds). Test Case '-[SwiftCovariantCopyTests.SwiftCovariantCopyTests testCopyWithoutAppend100M]' passed (4.037 seconds). Test Case '-[SwiftCovariantCopyTests.SwiftCovariantCopyTests testCopyWithAppend100M]' passed (23.242 seconds).