WPE Webkit browser issue

Hi All,
I am using wpe webkit browser and trying to run some test like TestJSC,
but while running the TestJSC on my device,
https://github.com/paul99/webkit-mips/blob/master/Tools/TestWebKitAPI/Tests/JavaScriptCore/glib/TestJSC.cpp at line 145 : g_assert_true(result.get() == value1.get()); is failing.

If some one have any idea could anyone help me in this, that why this assertion is failing or any pointer like what to check or how to debug.