<!DOCTYPE html>
<html>
<head>
<script src="../../http/tests/inspector/resources/inspector-test.js"></script>
<script src="resources/shaderProgram-utilities-webgl.js"></script>
<script id="vertex-shader" type="x-shader/x-vertex">
    void main(void) {
        gl_Position = vec4(0.0, 0.0, 0.0, 1.0);
    }
</script>
<script id="fragment-shader" type="x-shader/x-fragment">
    precision mediump float;

    void main(void) {
        gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);
    }
</script>
<script>
function load() {
    createProgram("webgl");
    linkProgram("vertex-shader", "fragment-shader");

    runTest();
}

function test() {
    let suite = InspectorTest.createAsyncSuite("Canvas.requestShaderSource.WebGL");

    suite.addTestCase({
        name: "Canvas.requestShaderSource.WebGL.Vertex",
        description: "Tests requesting the source code of a program's vertex shader.",
        test(resolve, reject) {
            let shaderProgram = WI.canvasManager.shaderPrograms[0];
            if (!shaderProgram) {
                reject("Missing shader program")
                return;
            }

            CanvasAgent.requestShaderSource(shaderProgram.identifier, CanvasAgent.ShaderType.Vertex)
            .then(({source}) => InspectorTest.log(source))
            .then(resolve, reject);
        }
    });

    suite.addTestCase({
        name: "Canvas.requestShaderSource.WebGL.Fragment",
        description: "Tests requesting the source code of a program's fragment shader.",
        test(resolve, reject) {
            let shaderProgram = WI.canvasManager.shaderPrograms[0];
            if (!shaderProgram) {
                reject("Missing shader program")
                return;
            }

            CanvasAgent.requestShaderSource(shaderProgram.identifier, CanvasAgent.ShaderType.Fragment)
            .then(({source}) => InspectorTest.log(source))
            .then(resolve, reject);
        }
    });

    suite.addTestCase({
        name: "Canvas.requestShaderSource.WebGL.ShaderType.Invalid",
        description: "Invalid shader types should cause an error.",
        test(resolve, reject) {
            let shaderProgram = WI.canvasManager.shaderPrograms[0];
            if (!shaderProgram) {
                reject("Missing shader program")
                return;
            }

            const shaderType = "INVALID_SHADER_TYPE";
            CanvasAgent.requestShaderSource(shaderProgram.identifier, shaderType, (error) => {
                InspectorTest.expectThat(error, "Should produce an error.");
                InspectorTest.log("Error: " + error);
                resolve();
            });
        }
    });

    suite.runTestCasesAndFinish();
}
</script>
</head>
<body onload="load()">
<p>WebGL tests for Canvas.requestShaderSource command.</p>
</body>
</html>