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<script src="../../js/webgl-test-utils.js"></script>
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<script>
"use strict";
var wtu = WebGLTestUtils;
description("Tests calling WebGL APIs without providing the necessary objects");

var context = wtu.create3DContext();
var program = wtu.loadStandardProgram(context);
var shader = wtu.loadStandardVertexShader(context);
var shouldGenerateGLError = wtu.shouldGenerateGLError;

assertMsg(program != null, "Program Compiled");
assertMsg(shader != null, "Shader Compiled");
shouldThrow("context.compileShader(undefined)");
shouldThrow("context.linkProgram(undefined)");
shouldThrow("context.attachShader(undefined, undefined)");
shouldThrow("context.attachShader(program, undefined)");
shouldThrow("context.attachShader(undefined, shader)");
shouldThrow("context.detachShader(program, undefined)");
shouldThrow("context.detachShader(undefined, shader)");
shouldThrow("context.shaderSource(undefined, undefined)");
shouldThrow("context.shaderSource(undefined, 'foo')");
shouldThrow("context.bindAttribLocation(undefined, 0, 'foo')");
shouldThrow("context.bindBuffer(context.ARRAY_BUFFER, 0)");
shouldThrow("context.bindFramebuffer(context.FRAMEBUFFER, 0)");
shouldThrow("context.bindRenderbuffer(context.RENDERBUFFER, 0)");
shouldThrow("context.bindTexture(context.TEXTURE_2D, 0)");
shouldGenerateGLError(context, context.NO_ERROR, "context.bindBuffer(context.ARRAY_BUFFER, null)");
shouldGenerateGLError(context, context.NO_ERROR, "context.bindFramebuffer(context.FRAMEBUFFER, null)");
shouldGenerateGLError(context, context.NO_ERROR, "context.bindRenderbuffer(context.RENDERBUFFER, null)");
shouldGenerateGLError(context, context.NO_ERROR, "context.bindTexture(context.TEXTURE_2D, null)");
shouldGenerateGLError(context, context.NO_ERROR, "context.bindBuffer(context.ARRAY_BUFFER, undefined)");
shouldGenerateGLError(context, context.NO_ERROR, "context.bindFramebuffer(context.FRAMEBUFFER, undefined)");
shouldGenerateGLError(context, context.NO_ERROR, "context.bindRenderbuffer(context.RENDERBUFFER, undefined)");
shouldGenerateGLError(context, context.NO_ERROR, "context.bindTexture(context.TEXTURE_2D, undefined)");
shouldGenerateGLError(context, context.INVALID_OPERATION, "context.framebufferRenderbuffer(context.FRAMEBUFFER, context.DEPTH_ATTACHMENT, context.RENDERBUFFER, null)");
shouldGenerateGLError(context, context.INVALID_OPERATION, "context.framebufferTexture2D(context.FRAMEBUFFER, context.COLOR_ATTACHMENT0, context.TEXTURE_2D, null, 0)");
shouldThrow("context.getProgramParameter(undefined, 0)");
shouldThrow("context.getProgramInfoLog(undefined, 0)");
shouldThrow("context.getShaderParameter(undefined, 0)");
shouldThrow("context.getShaderInfoLog(undefined, 0)");
shouldThrow("context.getShaderSource(undefined)");
shouldThrow("context.getUniform(undefined, null)");
shouldThrow("context.getUniformLocation(undefined, 'foo')");

debug("");
debug("check with bindings");
context.bindBuffer(context.ARRAY_BUFFER, context.createBuffer());
context.bindTexture(context.TEXTURE_2D, context.createTexture());
shouldGenerateGLError(context, context.NO_ERROR, "context.bufferData(context.ARRAY_BUFFER, 1, context.STATIC_DRAW)");
shouldGenerateGLError(context, context.NO_ERROR, "context.getBufferParameter(context.ARRAY_BUFFER, context.BUFFER_SIZE)");
shouldGenerateGLError(context, context.NO_ERROR, "context.texImage2D(context.TEXTURE_2D, 0, context.RGBA, 1, 1, 0, context.RGBA, context.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]))");
shouldGenerateGLError(context, context.NO_ERROR, "context.texParameteri(context.TEXTURE_2D, context.TEXTURE_MIN_FILTER, context.NEAREST)");
shouldGenerateGLError(context, context.NO_ERROR, "context.getTexParameter(context.TEXTURE_2D, context.TEXTURE_MIN_FILTER)");

debug("");
debug("check without bindings");
context.bindBuffer(context.ARRAY_BUFFER, null);
context.bindTexture(context.TEXTURE_2D, null);
shouldGenerateGLError(context, context.INVALID_OPERATION, "context.bufferData(context.ARRAY_BUFFER, 1, context.STATIC_DRAW)");
shouldGenerateGLError(context, context.INVALID_OPERATION, "context.getBufferParameter(context.ARRAY_BUFFER, context.BUFFER_SIZE)");
shouldGenerateGLError(context, context.INVALID_OPERATION, "context.texImage2D(context.TEXTURE_2D, 0, context.RGBA, 1, 1, 0, context.RGBA, context.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]))");
shouldGenerateGLError(context, context.INVALID_OPERATION, "context.texParameteri(context.TEXTURE_2D, context.TEXTURE_MIN_FILTER, context.NEAREST)");
shouldGenerateGLError(context, context.INVALID_OPERATION, "context.getTexParameter(context.TEXTURE_2D, context.TEXTURE_MIN_FILTER)");


var successfullyParsed = true;
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