WASHINGTON (AP) — Two contractors responsible for building the Healthcare.gov website say they would have liked more time to test it.

The contractors say months of testing would have been better than the two weeks' worth of checks done before the website launched Oct. 1. The testing was done by the federal Centers for Medicare and Medicaid Services, not a specialized tech company.

The contractors are CGI Federal Inc. and Quality Software Services Inc.

Executives from the two companies testified before Congress Thursday about the failures of HealthCare.gov. The problems have become an embarrassment for the White House and have undermined President Barack Obama's health care law.

The companies say they've been working to fix the website's problems since it debuted.