Test setting WebGL array with offset On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Regression test for https://bugs.webkit.org/show_bug.cgi?id=76040 : Int16Array.set(array, offset) fails on first execution Testing Int8Array PASS webGLArray[0] is 0 PASS webGLArray[1] is 1 PASS webGLArray[2] is 2 PASS webGLArray[3] is bounds[0] PASS webGLArray[4] is bounds[1] Testing Uint8Array PASS webGLArray[0] is 0 PASS webGLArray[1] is 1 PASS webGLArray[2] is 2 PASS webGLArray[3] is bounds[0] PASS webGLArray[4] is bounds[1] Testing Int16Array PASS webGLArray[0] is 0 PASS webGLArray[1] is 1 PASS webGLArray[2] is 2 PASS webGLArray[3] is bounds[0] PASS webGLArray[4] is bounds[1] Testing Uint16Array PASS webGLArray[0] is 0 PASS webGLArray[1] is 1 PASS webGLArray[2] is 2 PASS webGLArray[3] is bounds[0] PASS webGLArray[4] is bounds[1] Testing Int32Array PASS webGLArray[0] is 0 PASS webGLArray[1] is 1 PASS webGLArray[2] is 2 PASS webGLArray[3] is bounds[0] PASS webGLArray[4] is bounds[1] Testing Uint32Array PASS webGLArray[0] is 0 PASS webGLArray[1] is 1 PASS webGLArray[2] is 2 PASS webGLArray[3] is bounds[0] PASS webGLArray[4] is bounds[1] Testing Float32Array PASS webGLArray[0] is 0 PASS webGLArray[1] is 1 PASS webGLArray[2] is 2 PASS webGLArray[3] is bounds[0] PASS webGLArray[4] is bounds[1] PASS successfullyParsed is true TEST COMPLETE