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 that errors are properly handled when trying to compile a
michael@0:  * defective shader source.
michael@0:  */
michael@0: 
michael@0: function ifWebGLSupported() {
michael@0:   let [target, debuggee, front] = yield initBackend(SIMPLE_CANVAS_URL);
michael@0:   front.setup({ reload: true });
michael@0: 
michael@0:   let programActor = yield once(front, "program-linked");
michael@0:   let vertexShader = yield programActor.getVertexShader();
michael@0:   let fragmentShader = yield programActor.getFragmentShader();
michael@0: 
michael@0:   let oldVertSource = yield vertexShader.getText();
michael@0:   let newVertSource = oldVertSource.replace("vec4", "vec3");
michael@0: 
michael@0:   try {
michael@0:     yield vertexShader.compile(newVertSource);
michael@0:     ok(false, "Vertex shader was compiled with a defective source!");
michael@0:   } catch (error) {
michael@0:     ok(error,
michael@0:       "The new vertex shader source was compiled with errors.");
michael@0:     is(error.compile, "",
michael@0:       "The compilation status should be empty.");
michael@0:     isnot(error.link, "",
michael@0:       "The linkage status should not be empty.");
michael@0:     is(error.link.split("ERROR").length - 1, 2,
michael@0:       "The linkage status contains two errors.");
michael@0:     ok(error.link.contains("ERROR: 0:8: 'constructor'"),
michael@0:       "A constructor error is contained in the linkage status.");
michael@0:     ok(error.link.contains("ERROR: 0:8: 'assign'"),
michael@0:       "An assignment error is contained in the linkage status.");
michael@0:   }
michael@0: 
michael@0:   yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 255, g: 0, b: 0, a: 255 }, true);
michael@0:   yield ensurePixelIs(debuggee, { x: 511, y: 511 }, { r: 0, g: 255, b: 0, a: 255 }, true);
michael@0:   ok(true, "The shader was reverted to the old source.");
michael@0: 
michael@0:   let vertSource = yield vertexShader.getText();
michael@0:   ok(vertSource.contains("vec4(aVertexPosition, 1.0);"),
michael@0:     "The previous correct vertex shader source was preserved.");
michael@0: 
michael@0:   let oldFragSource = yield fragmentShader.getText();
michael@0:   let newFragSource = oldFragSource.replace("vec3", "vec4");
michael@0: 
michael@0:   try {
michael@0:     yield fragmentShader.compile(newFragSource);
michael@0:     ok(false, "Fragment shader was compiled with a defective source!");
michael@0:   } catch (error) {
michael@0:     ok(error,
michael@0:       "The new fragment shader source was compiled with errors.");
michael@0:     is(error.compile, "",
michael@0:       "The compilation status should be empty.");
michael@0:     isnot(error.link, "",
michael@0:       "The linkage status should not be empty.");
michael@0:     is(error.link.split("ERROR").length - 1, 1,
michael@0:       "The linkage status contains one error.");
michael@0:     ok(error.link.contains("ERROR: 0:6: 'constructor'"),
michael@0:       "A constructor error is contained in the linkage status.");
michael@0:   }
michael@0: 
michael@0:   yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 255, g: 0, b: 0, a: 255 }, true);
michael@0:   yield ensurePixelIs(debuggee, { x: 511, y: 511 }, { r: 0, g: 255, b: 0, a: 255 }, true);
michael@0:   ok(true, "The shader was reverted to the old source.");
michael@0: 
michael@0:   let fragSource = yield fragmentShader.getText();
michael@0:   ok(fragSource.contains("vec3 vFragmentColor;"),
michael@0:     "The previous correct fragment shader source was preserved.");
michael@0: 
michael@0:   yield programActor.highlight([0, 1, 0, 1]);
michael@0:   yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 0, g: 0, b: 0, a: 255 }, true);
michael@0:   yield ensurePixelIs(debuggee, { x: 511, y: 511 }, { r: 0, g: 255, b: 0, a: 255 }, true);
michael@0:   ok(true, "Highlighting worked after setting a defective fragment source.");
michael@0: 
michael@0:   yield programActor.unhighlight();
michael@0:   yield ensurePixelIs(debuggee, { x: 0, y: 0 }, { r: 255, g: 0, b: 0, a: 255 }, true);
michael@0:   yield ensurePixelIs(debuggee, { x: 511, y: 511 }, { r: 0, g: 255, b: 0, a: 255 }, true);
michael@0:   ok(true, "Unhighlighting worked after setting a defective vertex source.");
michael@0: 
michael@0:   yield removeTab(target.tab);
michael@0:   finish();
michael@0: }