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Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
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<link rel="stylesheet" href="../../resources/js-test-style.css"/>
<script src="../../js/js-test-pre.js"></script>
<script src="../../js/webgl-test-utils.js"></script>
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<script>
"use strict";
var wtu = WebGLTestUtils;
description("Tests calling WebGL 2 APIs without providing the necessary objects");

var gl = wtu.create3DContext(undefined, undefined, 2);
var shouldGenerateGLError = wtu.shouldGenerateGLError;


for (let nullOrUndefined of [null, undefined]) {
    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.deleteQuery(${nullOrUndefined})`);
    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.isQuery(${nullOrUndefined})`);
    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.deleteSync(${nullOrUndefined})`);
    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.isSync(${nullOrUndefined})`);
    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.deleteTransformFeedback(${nullOrUndefined})`);
    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.isTransformFeedback(${nullOrUndefined})`);
    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.deleteSampler(${nullOrUndefined})`);
    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.isSampler(${nullOrUndefined})`);
    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.deleteVertexArray(${nullOrUndefined})`);
    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.isVertexArray(${nullOrUndefined})`);

    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.bindSampler(0, ${nullOrUndefined})`);
    shouldThrow(`gl.samplerParameteri(${nullOrUndefined}, gl.TEXTURE_MAG_FILTER, gl.NEAREST)`);
    shouldThrow(`gl.samplerParameterf(${nullOrUndefined}, gl.TEXTURE_MAX_LOD, 1)`);
    shouldThrow(`gl.getSamplerParameter(${nullOrUndefined}, gl.TEXTURE_MAX_LOD)`);

    shouldThrow(`gl.waitSync(${nullOrUndefined}, 0, 0)`);
    shouldThrow(`gl.clientWaitSync(${nullOrUndefined}, 0, 0)`);
    shouldThrow(`gl.getSyncParameter(${nullOrUndefined}, gl.OBJECT_TYPE)`);

    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.bindTransformFeedback(gl.TRANSFORM_FEEDBACK, ${nullOrUndefined})`);
    shouldThrow(`gl.transformFeedbackVaryings(${nullOrUndefined}, [], gl.SEPARATE_ATTRIBS)`);

    shouldGenerateGLError(gl, gl.NO_ERROR, `gl.bindVertexArray(${nullOrUndefined})`);
}


var successfullyParsed = true;
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