michael@0: /* Any copyright is dedicated to the Public Domain.
michael@0:    http://creativecommons.org/publicdomain/zero/1.0/ */
michael@0: 
michael@0: /**
michael@0:  * Tests if the WebGL context is never instrumented anymore after the
michael@0:  * finalize method is called.
michael@0:  */
michael@0: 
michael@0: function ifWebGLSupported() {
michael@0:   let [target, debuggee, front] = yield initBackend(SIMPLE_CANVAS_URL);
michael@0: 
michael@0:   let linked = once(front, "program-linked");
michael@0:   front.setup({ reload: true });
michael@0:   yield linked;
michael@0:   ok(true, "Canvas was correctly instrumented on the first navigation.");
michael@0: 
michael@0:   once(front, "program-linked").then(() => {
michael@0:     ok(false, "A 'program-linked' notification shouldn't have been sent!");
michael@0:   });
michael@0: 
michael@0:   yield front.finalize();
michael@0:   yield reload(target);
michael@0:   yield removeTab(target.tab);
michael@0:   finish();
michael@0: }