It is now possible to either use webgl shim or the null engine in unit tests

Viewer/tests/commons/boot.ts

@@ -1,5 +1,5 @@
-// import webglSupport from './mockWebGL';
-import { Helper } from "./helper";
+import webglSupport from './mockWebGL';
+import { Helper, useNullEngine } from "./helper";
 import { viewerGlobals } from "../../src";
 
 export class Boot {
@@ -85,5 +85,7 @@ export class Boot {
 
 }
 
-// webglSupport();
+if (!useNullEngine) {
+    webglSupport();
+}
 export var main = Boot.main;

Viewer/tests/commons/helper.ts

@@ -2,8 +2,26 @@ import { AbstractViewer, DefaultViewer, ViewerModel, viewerGlobals, AnimationPla
 import { ViewerConfiguration } from "../../src/configuration/configuration";
 import { IModelAnimation } from "../../src/model/modelAnimation";
 
+export const useNullEngine = true;
+
 export class Helper {
 
+    public static getNewViewerInstance(element: HTMLElement = Helper.getViewerContainer(), configuration?: ViewerConfiguration, useAbstractViewer?: boolean) {
+        if (useNullEngine) {
+            if (useAbstractViewer) {
+                return new NullEngineAbstractViewer(element, configuration);
+            } else {
+                return new NullEngineDefaultViewer(element, configuration);
+            }
+        } else {
+            if (useAbstractViewer) {
+                return new ImplementedAbstractViewer(element, configuration);
+            } else {
+                return new DefaultViewer(element, configuration);
+            }
+        }
+    }
+
     public static createViewer(options?: ViewerConfiguration): AbstractViewer {
         if (Helper.viewer != null) {
             throw "The global instance of viewer should not be created more than once";
@@ -85,6 +103,55 @@ export class Helper {
 
 }
 
+export class ImplementedAbstractViewer extends AbstractViewer {
+    protected _prepareContainerElement() {
+        // noop
+    }
+}
+
+export class NullEngineAbstractViewer extends AbstractViewer {
+
+    protected _prepareContainerElement() {
+        // noop
+    }
+
+    protected _initEngine() {
+        let config: any = this._configuration.engine || {};
+        // TDO enable further configuration
+        config.engineOptions = config.engineOptions || {};
+
+        // check for webgl2 support, force-disable if needed.
+        if (viewerGlobals.disableWebGL2Support) {
+
+            config.engineOptions.disableWebGL2Support = true;
+        }
+
+        config.engineOptions.renderWidth = 500;
+
+        this.engine = new BABYLON.NullEngine(config.engineOptions);
+
+        // Disable manifest checking
+        BABYLON.Database.IDBStorageEnabled = false;
+
+        if (!config.disableResize) {
+            window.addEventListener('resize', this._resize);
+        }
+
+
+        this.engine.runRenderLoop(this._render);
+
+        if (this._configuration.engine && this._configuration.engine.adaptiveQuality) {
+            var scale = Math.max(0.5, 1 / (window.devicePixelRatio || 2));
+            this.engine.setHardwareScalingLevel(scale);
+        }
+
+        // set hardware limitations for scene initialization
+        this._handleHardwareLimitations();
+
+        return Promise.resolve(this.engine);
+    }
+}
+
 export class NullEngineDefaultViewer extends DefaultViewer {
 
     protected _initEngine() {

Viewer/tests/commons/mockWebGL.ts

@@ -0,0 +1,583 @@
+/**
+ * This webGL Support shim will allow running tests using the normal engine in phantomjs.
+ */
+
+//Tests should be in the same condition no matter what environment they are running in.
+//!(<any>window).WebGLRenderingContext){
+export default function webglSupport() {
+
+    //mock webgl support
+    (<any>HTMLCanvasElement.prototype)._getContext = HTMLCanvasElement.prototype.getContext;
+    HTMLCanvasElement.prototype.getContext = function (ctxName, options) {
+        //patch in mock webgl
+        switch (ctxName) {
+            case 'webgl':
+            case 'experimental-webgl':
+                var ctx = new (<any>window).WebGLRenderingContext();
+                // tslint:disable-next-line:no-invalid-this
+                ctx.canvas = this;
+                // tslint:disable-next-line:no-invalid-this
+                ctx.drawingBufferWidth = this.clientWidth;
+                // tslint:disable-next-line:no-invalid-this
+                ctx.drawingBufferHeight = this.clientHeight;
+                return (<any>ctx);
+        }
+        //pass through to default behavior
+        // tslint:disable-next-line:no-invalid-this
+        return this._getContext.apply(this, arguments);
+    };
+
+    //define WebGLRenderingContext
+    (<any>window).WebGLRenderingContext = () => { };
+
+    (<any>window).WebGLRenderingContext.prototype = {
+        /* ClearBufferMask */
+        DEPTH_BUFFER_BIT: 0x00000100,
+        STENCIL_BUFFER_BIT: 0x00000400,
+        COLOR_BUFFER_BIT: 0x00004000,
+
+        /* BeginMode */
+        POINTS: 0x0000,
+        LINES: 0x0001,
+        LINE_LOOP: 0x0002,
+        LINE_STRIP: 0x0003,
+        TRIANGLES: 0x0004,
+        TRIANGLE_STRIP: 0x0005,
+        TRIANGLE_FAN: 0x0006,
+
+        /* AlphaFunction (not supported in ES20) */
+        /*      NEVER */
+        /*      LESS */
+        /*      EQUAL */
+        /*      LEQUAL */
+        /*      GREATER */
+        /*      NOTEQUAL */
+        /*      GEQUAL */
+        /*      ALWAYS */
+
+        /* BlendingFactorDest */
+        ZERO: 0,
+        ONE: 1,
+        SRC_COLOR: 0x0300,
+        ONE_MINUS_SRC_COLOR: 0x0301,
+        SRC_ALPHA: 0x0302,
+        ONE_MINUS_SRC_ALPHA: 0x0303,
+        DST_ALPHA: 0x0304,
+        ONE_MINUS_DST_ALPHA: 0x0305,
+
+        /* BlendingFactorSrc */
+        /*      ZERO */
+        /*      ONE */
+        DST_COLOR: 0x0306,
+        ONE_MINUS_DST_COLOR: 0x0307,
+        SRC_ALPHA_SATURATE: 0x0308,
+        /*      SRC_ALPHA */
+        /*      ONE_MINUS_SRC_ALPHA */
+        /*      DST_ALPHA */
+        /*      ONE_MINUS_DST_ALPHA */
+
+        /* BlendEquationSeparate */
+        FUNC_ADD: 0x8006,
+        BLEND_EQUATION: 0x8009,
+        BLEND_EQUATION_RGB: 0x8009,   /* same as BLEND_EQUATION */
+        BLEND_EQUATION_ALPHA: 0x883D,
+
+        /* BlendSubtract */
+        FUNC_SUBTRACT: 0x800A,
+        FUNC_REVERSE_SUBTRACT: 0x800B,
+
+        /* Separate Blend Functions */
+        BLEND_DST_RGB: 0x80C8,
+        BLEND_SRC_RGB: 0x80C9,
+        BLEND_DST_ALPHA: 0x80CA,
+        BLEND_SRC_ALPHA: 0x80CB,
+        CONSTANT_COLOR: 0x8001,
+        ONE_MINUS_CONSTANT_COLOR: 0x8002,
+        CONSTANT_ALPHA: 0x8003,
+        ONE_MINUS_CONSTANT_ALPHA: 0x8004,
+        BLEND_COLOR: 0x8005,
+
+        /* Buffer Objects */
+        ARRAY_BUFFER: 0x8892,
+        ELEMENT_ARRAY_BUFFER: 0x8893,
+        ARRAY_BUFFER_BINDING: 0x8894,
+        ELEMENT_ARRAY_BUFFER_BINDING: 0x8895,
+        STREAM_DRAW: 0x88E0,
+        STATIC_DRAW: 0x88E4,
+        DYNAMIC_DRAW: 0x88E8,
+        BUFFER_SIZE: 0x8764,
+        BUFFER_USAGE: 0x8765,
+        CURRENT_VERTEX_ATTRIB: 0x8626,
+
+        /* CullFaceMode */
+        FRONT: 0x0404,
+        BACK: 0x0405,
+        FRONT_AND_BACK: 0x0408,
+
+        /* DepthFunction */
+        /*      NEVER */
+        /*      LESS */
+        /*      EQUAL */
+        /*      LEQUAL */
+        /*      GREATER */
+        /*      NOTEQUAL */
+        /*      GEQUAL */
+        /*      ALWAYS */
+
+        /* EnableCap */
+        /* TEXTURE_2D */
+        CULL_FACE: 0x0B44,
+        BLEND: 0x0BE2,
+        DITHER: 0x0BD0,
+        STENCIL_TEST: 0x0B90,
+        DEPTH_TEST: 0x0B71,
+        SCISSOR_TEST: 0x0C11,
+        POLYGON_OFFSET_FILL: 0x8037,
+        SAMPLE_ALPHA_TO_COVERAGE: 0x809E,
+        SAMPLE_COVERAGE: 0x80A0,
+
+        /* ErrorCode */
+        NO_ERROR: 0,
+        INVALID_ENUM: 0x0500,
+        INVALID_VALUE: 0x0501,
+        INVALID_OPERATION: 0x0502,
+        OUT_OF_MEMORY: 0x0505,
+
+        /* FrontFaceDirection */
+        CW: 0x0900,
+        CCW: 0x0901,
+
+        /* GetPName */
+        LINE_WIDTH: 0x0B21,
+        ALIASED_POINT_SIZE_RANGE: 0x846D,
+        ALIASED_LINE_WIDTH_RANGE: 0x846E,
+        CULL_FACE_MODE: 0x0B45,
+        FRONT_FACE: 0x0B46,
+        DEPTH_RANGE: 0x0B70,
+        DEPTH_WRITEMASK: 0x0B72,
+        DEPTH_CLEAR_VALUE: 0x0B73,
+        DEPTH_FUNC: 0x0B74,
+        STENCIL_CLEAR_VALUE: 0x0B91,
+        STENCIL_FUNC: 0x0B92,
+        STENCIL_FAIL: 0x0B94,
+        STENCIL_PASS_DEPTH_FAIL: 0x0B95,
+        STENCIL_PASS_DEPTH_PASS: 0x0B96,
+        STENCIL_REF: 0x0B97,
+        STENCIL_VALUE_MASK: 0x0B93,
+        STENCIL_WRITEMASK: 0x0B98,
+        STENCIL_BACK_FUNC: 0x8800,
+        STENCIL_BACK_FAIL: 0x8801,
+        STENCIL_BACK_PASS_DEPTH_FAIL: 0x8802,
+        STENCIL_BACK_PASS_DEPTH_PASS: 0x8803,
+        STENCIL_BACK_REF: 0x8CA3,
+        STENCIL_BACK_VALUE_MASK: 0x8CA4,
+        STENCIL_BACK_WRITEMASK: 0x8CA5,
+        VIEWPORT: 0x0BA2,
+        SCISSOR_BOX: 0x0C10,
+        /*      SCISSOR_TEST */
+        COLOR_CLEAR_VALUE: 0x0C22,
+        COLOR_WRITEMASK: 0x0C23,
+        UNPACK_ALIGNMENT: 0x0CF5,
+        PACK_ALIGNMENT: 0x0D05,
+        MAX_TEXTURE_SIZE: 0x0D33,
+        MAX_VIEWPORT_DIMS: 0x0D3A,
+        SUBPIXEL_BITS: 0x0D50,
+        RED_BITS: 0x0D52,
+        GREEN_BITS: 0x0D53,
+        BLUE_BITS: 0x0D54,
+        ALPHA_BITS: 0x0D55,
+        DEPTH_BITS: 0x0D56,
+        STENCIL_BITS: 0x0D57,
+        POLYGON_OFFSET_UNITS: 0x2A00,
+        /*      POLYGON_OFFSET_FILL */
+        POLYGON_OFFSET_FACTOR: 0x8038,
+        TEXTURE_BINDING_2D: 0x8069,
+        SAMPLE_BUFFERS: 0x80A8,
+        SAMPLES: 0x80A9,
+        SAMPLE_COVERAGE_VALUE: 0x80AA,
+        SAMPLE_COVERAGE_INVERT: 0x80AB,
+
+        /* GetTextureParameter */
+        /*      TEXTURE_MAG_FILTER */
+        /*      TEXTURE_MIN_FILTER */
+        /*      TEXTURE_WRAP_S */
+        /*      TEXTURE_WRAP_T */
+        COMPRESSED_TEXTURE_FORMATS: 0x86A3,
+
+        /* HintMode */
+        DONT_CARE: 0x1100,
+        FASTEST: 0x1101,
+        NICEST: 0x1102,
+
+        /* HintTarget */
+        GENERATE_MIPMAP_HINT: 0x8192,
+
+        /* DataType */
+        BYTE: 0x1400,
+        UNSIGNED_BYTE: 0x1401,
+        SHORT: 0x1402,
+        UNSIGNED_SHORT: 0x1403,
+        INT: 0x1404,
+        UNSIGNED_INT: 0x1405,
+        FLOAT: 0x1406,
+
+        /* PixelFormat */
+        DEPTH_COMPONENT: 0x1902,
+        ALPHA: 0x1906,
+        RGB: 0x1907,
+        RGBA: 0x1908,
+        LUMINANCE: 0x1909,
+        LUMINANCE_ALPHA: 0x190A,
+
+        /* PixelType */
+        /*      UNSIGNED_BYTE */
+        UNSIGNED_SHORT_4_4_4_4: 0x8033,
+        UNSIGNED_SHORT_5_5_5_1: 0x8034,
+        UNSIGNED_SHORT_5_6_5: 0x8363,
+
+        /* Shaders */
+        FRAGMENT_SHADER: 0x8B30,
+        VERTEX_SHADER: 0x8B31,
+        MAX_VERTEX_ATTRIBS: 0x8869,
+        MAX_VERTEX_UNIFORM_VECTORS: 0x8DFB,
+        MAX_VARYING_VECTORS: 0x8DFC,
+        MAX_COMBINED_TEXTURE_IMAGE_UNITS: 0x8B4D,
+        MAX_VERTEX_TEXTURE_IMAGE_UNITS: 0x8B4C,
+        MAX_TEXTURE_IMAGE_UNITS: 0x8872,
+        MAX_FRAGMENT_UNIFORM_VECTORS: 0x8DFD,
+        SHADER_TYPE: 0x8B4F,
+        DELETE_STATUS: 0x8B80,
+        LINK_STATUS: 0x8B82,
+        VALIDATE_STATUS: 0x8B83,
+        ATTACHED_SHADERS: 0x8B85,
+        ACTIVE_UNIFORMS: 0x8B86,
+        ACTIVE_ATTRIBUTES: 0x8B89,
+        SHADING_LANGUAGE_VERSION: 0x8B8C,
+        CURRENT_PROGRAM: 0x8B8D,
+
+        /* StencilFunction */
+        NEVER: 0x0200,
+        LESS: 0x0201,
+        EQUAL: 0x0202,
+        LEQUAL: 0x0203,
+        GREATER: 0x0204,
+        NOTEQUAL: 0x0205,
+        GEQUAL: 0x0206,
+        ALWAYS: 0x0207,
+
+        /* StencilOp */
+        /*      ZERO */
+        KEEP: 0x1E00,
+        REPLACE: 0x1E01,
+        INCR: 0x1E02,
+        DECR: 0x1E03,
+        INVERT: 0x150A,
+        INCR_WRAP: 0x8507,
+        DECR_WRAP: 0x8508,
+
+        /* StringName */
+        VENDOR: 0x1F00,
+        RENDERER: 0x1F01,
+        VERSION: 0x1F02,
+
+        /* TextureMagFilter */
+        NEAREST: 0x2600,
+        LINEAR: 0x2601,
+
+        /* TextureMinFilter */
+        /*      NEAREST */
+        /*      LINEAR */
+        NEAREST_MIPMAP_NEAREST: 0x2700,
+        LINEAR_MIPMAP_NEAREST: 0x2701,
+        NEAREST_MIPMAP_LINEAR: 0x2702,
+        LINEAR_MIPMAP_LINEAR: 0x2703,
+
+        /* TextureParameterName */
+        TEXTURE_MAG_FILTER: 0x2800,
+        TEXTURE_MIN_FILTER: 0x2801,
+        TEXTURE_WRAP_S: 0x2802,
+        TEXTURE_WRAP_T: 0x2803,
+
+        /* TextureTarget */
+        TEXTURE_2D: 0x0DE1,
+        TEXTURE: 0x1702,
+        TEXTURE_CUBE_MAP: 0x8513,
+        TEXTURE_BINDING_CUBE_MAP: 0x8514,
+        TEXTURE_CUBE_MAP_POSITIVE_X: 0x8515,
+        TEXTURE_CUBE_MAP_NEGATIVE_X: 0x8516,
+        TEXTURE_CUBE_MAP_POSITIVE_Y: 0x8517,
+        TEXTURE_CUBE_MAP_NEGATIVE_Y: 0x8518,
+        TEXTURE_CUBE_MAP_POSITIVE_Z: 0x8519,
+        TEXTURE_CUBE_MAP_NEGATIVE_Z: 0x851A,
+        MAX_CUBE_MAP_TEXTURE_SIZE: 0x851C,
+
+        /* TextureUnit */
+        TEXTURE0: 0x84C0,
+        TEXTURE1: 0x84C1,
+        TEXTURE2: 0x84C2,
+        TEXTURE3: 0x84C3,
+        TEXTURE4: 0x84C4,
+        TEXTURE5: 0x84C5,
+        TEXTURE6: 0x84C6,
+        TEXTURE7: 0x84C7,
+        TEXTURE8: 0x84C8,
+        TEXTURE9: 0x84C9,
+        TEXTURE10: 0x84CA,
+        TEXTURE11: 0x84CB,
+        TEXTURE12: 0x84CC,
+        TEXTURE13: 0x84CD,
+        TEXTURE14: 0x84CE,
+        TEXTURE15: 0x84CF,
+        TEXTURE16: 0x84D0,
+        TEXTURE17: 0x84D1,
+        TEXTURE18: 0x84D2,
+        TEXTURE19: 0x84D3,
+        TEXTURE20: 0x84D4,
+        TEXTURE21: 0x84D5,
+        TEXTURE22: 0x84D6,
+        TEXTURE23: 0x84D7,
+        TEXTURE24: 0x84D8,
+        TEXTURE25: 0x84D9,
+        TEXTURE26: 0x84DA,
+        TEXTURE27: 0x84DB,
+        TEXTURE28: 0x84DC,
+        TEXTURE29: 0x84DD,
+        TEXTURE30: 0x84DE,
+        TEXTURE31: 0x84DF,
+        ACTIVE_TEXTURE: 0x84E0,
+
+        /* TextureWrapMode */
+        REPEAT: 0x2901,
+        CLAMP_TO_EDGE: 0x812F,
+        MIRRORED_REPEAT: 0x8370,
+
+        /* Uniform Types */
+        FLOAT_VEC2: 0x8B50,
+        FLOAT_VEC3: 0x8B51,
+        FLOAT_VEC4: 0x8B52,
+        INT_VEC2: 0x8B53,
+        INT_VEC3: 0x8B54,
+        INT_VEC4: 0x8B55,
+        BOOL: 0x8B56,
+        BOOL_VEC2: 0x8B57,
+        BOOL_VEC3: 0x8B58,
+        BOOL_VEC4: 0x8B59,
+        FLOAT_MAT2: 0x8B5A,
+        FLOAT_MAT3: 0x8B5B,
+        FLOAT_MAT4: 0x8B5C,
+        SAMPLER_2D: 0x8B5E,
+        SAMPLER_CUBE: 0x8B60,
+
+        /* Vertex Arrays */
+        VERTEX_ATTRIB_ARRAY_ENABLED: 0x8622,
+        VERTEX_ATTRIB_ARRAY_SIZE: 0x8623,
+        VERTEX_ATTRIB_ARRAY_STRIDE: 0x8624,
+        VERTEX_ATTRIB_ARRAY_TYPE: 0x8625,
+        VERTEX_ATTRIB_ARRAY_NORMALIZED: 0x886A,
+        VERTEX_ATTRIB_ARRAY_POINTER: 0x8645,
+        VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: 0x889F,
+
+        /* Read Format */
+        IMPLEMENTATION_COLOR_READ_TYPE: 0x8B9A,
+        IMPLEMENTATION_COLOR_READ_FORMAT: 0x8B9B,
+
+        /* Shader Source */
+        COMPILE_STATUS: 0x8B81,
+
+        /* Shader Precision-Specified Types */
+        LOW_FLOAT: 0x8DF0,
+        MEDIUM_FLOAT: 0x8DF1,
+        HIGH_FLOAT: 0x8DF2,
+        LOW_INT: 0x8DF3,
+        MEDIUM_INT: 0x8DF4,
+        HIGH_INT: 0x8DF5,
+
+        /* Framebuffer Object. */
+        FRAMEBUFFER: 0x8D40,
+        RENDERBUFFER: 0x8D41,
+        RGBA4: 0x8056,
+        RGB5_A1: 0x8057,
+        RGB565: 0x8D62,
+        DEPTH_COMPONENT16: 0x81A5,
+        STENCIL_INDEX: 0x1901,
+        STENCIL_INDEX8: 0x8D48,
+        DEPTH_STENCIL: 0x84F9,
+        RENDERBUFFER_WIDTH: 0x8D42,
+        RENDERBUFFER_HEIGHT: 0x8D43,
+        RENDERBUFFER_INTERNAL_FORMAT: 0x8D44,
+        RENDERBUFFER_RED_SIZE: 0x8D50,
+        RENDERBUFFER_GREEN_SIZE: 0x8D51,
+        RENDERBUFFER_BLUE_SIZE: 0x8D52,
+        RENDERBUFFER_ALPHA_SIZE: 0x8D53,
+        RENDERBUFFER_DEPTH_SIZE: 0x8D54,
+        RENDERBUFFER_STENCIL_SIZE: 0x8D55,
+        FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: 0x8CD0,
+        FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: 0x8CD1,
+        FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: 0x8CD2,
+        FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: 0x8CD3,
+        COLOR_ATTACHMENT0: 0x8CE0,
+        DEPTH_ATTACHMENT: 0x8D00,
+        STENCIL_ATTACHMENT: 0x8D20,
+        DEPTH_STENCIL_ATTACHMENT: 0x821A,
+        NONE: 0,
+        FRAMEBUFFER_COMPLETE: 0x8CD5,
+        FRAMEBUFFER_INCOMPLETE_ATTACHMENT: 0x8CD6,
+        FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: 0x8CD7,
+        FRAMEBUFFER_INCOMPLETE_DIMENSIONS: 0x8CD9,
+        FRAMEBUFFER_UNSUPPORTED: 0x8CDD,
+        FRAMEBUFFER_BINDING: 0x8CA6,
+        RENDERBUFFER_BINDING: 0x8CA7,
+        MAX_RENDERBUFFER_SIZE: 0x84E8,
+        INVALID_FRAMEBUFFER_OPERATION: 0x0506,
+
+        /* WebGL-specific enums */
+        UNPACK_FLIP_Y_WEBGL: 0x9240,
+        UNPACK_PREMULTIPLY_ALPHA_WEBGL: 0x9241,
+        CONTEXT_LOST_WEBGL: 0x9242,
+        UNPACK_COLORSPACE_CONVERSION_WEBGL: 0x9243,
+        BROWSER_DEFAULT_WEBGL: 0x9244,
+
+        canvas: null,
+        drawingBufferWidth: 0,
+        drawingBufferHeight: 0,
+
+        getContextAttributes: function () { return {}; },
+        isContextLost: function () { return {}; },
+        getSupportedExtensions: function () { return {}; },
+        getExtension: function (name) { return name === "EXT_texture_filter_anisotropic" ? {} : null; },
+        activeTexture: function () { return {}; },
+        attachShader: function () { return {}; },
+        bindAttribLocation: function () { return {}; },
+        bindBuffer: function () { return {}; },
+        bindFramebuffer: function () { return {}; },
+        bindRenderbuffer: function () { return {}; },
+        bindTexture: function () { return {}; },
+        blendColor: function () { return {}; },
+        blendEquation: function () { return {}; },
+        blendEquationSeparate: function () { return {}; },
+        blendFunc: function () { return {}; },
+        blendFuncSeparate: function () { return {}; },
+        bufferData: function () { return {}; },
+        bufferSubData: function () { return {}; },
+        checkFramebufferStatus: function () { return {}; },
+        clear: function () { return {}; },
+        clearColor: function () { return {}; },
+        clearDepth: function () { return {}; },
+        clearStencil: function () { return {}; },
+        colorMask: function () { return {}; },
+        compileShader: function () { return {}; },
+        compressedTexImage2D: function () { return {}; },
+        compressedTexSubImage2D: function () { return {}; },
+        copyTexImage2D: function () { return {}; },
+        copyTexSubImage2D: function () { return {}; },
+        createBuffer: function () { return {}; },
+        createFramebuffer: function () { return {}; },
+        createProgram: function () { return {}; },
+        createRenderbuffer: function () { return {}; },
+        createShader: function () { return {}; },
+        createTexture: function () { return {}; },
+        cullFace: function () { return {}; },
+        deleteBuffer: function () { return {}; },
+        deleteFramebuffer: function () { return {}; },
+        deleteProgram: function () { return {}; },
+        deleteRenderbuffer: function () { return {}; },
+        deleteShader: function () { return {}; },
+        deleteTexture: function () { return {}; },
+        depthFunc: function () { return {}; },
+        depthMask: function () { return {}; },
+        depthRange: function () { return {}; },
+        detachShader: function () { return {}; },
+        disable: function () { return {}; },
+        disableVertexAttribArray: function () { return {}; },
+        drawArrays: function () { return {}; },
+        drawElements: function () { return {}; },
+        enable: function () { return {}; },
+        enableVertexAttribArray: function () { return {}; },
+        finish: function () { return {}; },
+        flush: function () { return {}; },
+        framebufferRenderbuffer: function () { return {}; },
+        framebufferTexture2D: function () { return {}; },
+        frontFace: function () { return {}; },
+        generateMipmap: function () { return {}; },
+        getActiveAttrib: function () { return {}; },
+        getActiveUniform: function () { return {}; },
+        getAttachedShaders: function () { return {}; },
+        getAttribLocation: function () { return {}; },
+        getBufferParameter: function () { return {}; },
+        getParameter: function () { return 256; },
+        getError: function () { return 0; },
+        getFramebufferAttachmentParameter: function () { return {}; },
+        getProgramParameter: function () { return {}; },
+        getProgramInfoLog: function () { return {}; },
+        getRenderbufferParameter: function () { return {}; },
+        getShaderParameter: function () { return {}; },
+        getShaderPrecisionFormat: function () { return {}; },
+        getShaderInfoLog: function () { return {}; },
+        getShaderSource: function () { return {}; },
+        getTexParameter: function () { return {}; },
+        getUniform: function () { return {}; },
+        getUniformLocation: function () { return {}; },
+        getVertexAttrib: function () { return {}; },
+        getVertexAttribOffset: function () { return {}; },
+        hint: function () { return {}; },
+        isBuffer: function () { return {}; },
+        isEnabled: function () { return {}; },
+        isFramebuffer: function () { return {}; },
+        isProgram: function () { return {}; },
+        isRenderbuffer: function () { return {}; },
+        isShader: function () { return {}; },
+        isTexture: function () { return {}; },
+        lineWidth: function () { return {}; },
+        linkProgram: function () { return {}; },
+        pixelStorei: function () { return {}; },
+        polygonOffset: function () { return {}; },
+        readPixels: function () { return {}; },
+        renderbufferStorage: function () { return {}; },
+        sampleCoverage: function () { return {}; },
+        scissor: function () { return {}; },
+        shaderSource: function () { return {}; },
+        stencilFunc: function () { return {}; },
+        stencilFuncSeparate: function () { return {}; },
+        stencilMask: function () { return {}; },
+        stencilMaskSeparate: function () { return {}; },
+        stencilOp: function () { return {}; },
+        stencilOpSeparate: function () { return {}; },
+        texImage2D: function () { return {}; },
+        texImage3D: function () { return {}; },
+        texParameterf: function () { return {}; },
+        texParameteri: function () { return {}; },
+        texSubImage2D: function () { return {}; },
+        uniform1f: function () { return {}; },
+        uniform1fv: function () { return {}; },
+        uniform1i: function () { return {}; },
+        uniform1iv: function () { return {}; },
+        uniform2f: function () { return {}; },
+        uniform2fv: function () { return {}; },
+        uniform2i: function () { return {}; },
+        uniform2iv: function () { return {}; },
+        uniform3f: function () { return {}; },
+        uniform3fv: function () { return {}; },
+        uniform3i: function () { return {}; },
+        uniform3iv: function () { return {}; },
+        uniform4f: function () { return {}; },
+        uniform4fv: function () { return {}; },
+        uniform4i: function () { return {}; },
+        uniform4iv: function () { return {}; },
+        uniformMatrix2fv: function () { return {}; },
+        uniformMatrix3fv: function () { return {}; },
+        uniformMatrix4fv: function () { return {}; },
+        useProgram: function () { return {}; },
+        validateProgram: function () { return {}; },
+        vertexAttrib1f: function () { return {}; },
+        vertexAttrib1fv: function () { return {}; },
+        vertexAttrib2f: function () { return {}; },
+        vertexAttrib2fv: function () { return {}; },
+        vertexAttrib3f: function () { return {}; },
+        vertexAttrib3fv: function () { return {}; },
+        vertexAttrib4f: function () { return {}; },
+        vertexAttrib4fv: function () { return {}; },
+        vertexAttribPointer: function () { return {}; },
+        viewport: function () { return {}; }
+    }
+
+}

Viewer/tests/unit/src/Viewer/viewer.ts

@@ -1,14 +1,15 @@
-import { AbstractViewer } from "../../../../src/viewer/viewer";
-import { Helper, NullEngineDefaultViewer } from "../../../commons/helper";
+import { Helper } from "../../../commons/helper";
 import { assert, expect } from "../viewerReference";
 
+export let name = "viewerTest";
+
 /**
  * To prevent test-state-leakage ensure that there is a viewer.dispose() for every new DefaultViewer
  */
 
 describe('Viewer', function () {
     it('should initialize a new viewer', (done) => {
-        let viewer = new NullEngineDefaultViewer(Helper.getViewerContainer());
+        let viewer = Helper.getNewViewerInstance();
         viewer.onInitDoneObservable.add(() => {
             assert.isTrue(viewer != undefined, "Viewer can not be instantiated.");
             viewer.dispose();
@@ -17,10 +18,9 @@ describe('Viewer', function () {
     });
 
     it('should not initialize if element is undefined', (done) => {
-        let viewer: AbstractViewer;
         try {
             // force typescript to "think" that the element exist with "!"
-            viewer = new NullEngineDefaultViewer(document.getElementById('doesntexist')!);
+            let viewer = Helper.getNewViewerInstance(document.getElementById('doesntexist')!);
             expect(viewer).not.to.exist;
             if (viewer) viewer.dispose();
         } catch (e) {
@@ -29,39 +29,8 @@ describe('Viewer', function () {
         }
         done();
     });
-
-    it('should be hidden and shown', (done) => {
-        let viewer = new NullEngineDefaultViewer(Helper.getViewerContainer());
-        viewer.onInitDoneObservable.add(() => {
-            assert.isTrue(viewer != undefined, "Viewer can not be instantiated.");
-            viewer.dispose();
-            done();
-        });
-    })
 });
 
-export default (function () {
-    /*describe('Viewer', function () {
-        it('should initialize a new viewer', () => {
-            let viewer = new DefaultViewer(Helper.getCanvas());
-            assert.isTrue(viewer != undefined, "Viewer can not be instantiated.");
-            viewer.dispose();
-        });
-
-        it('should not initialize if canvas is undefined', () => {
-            let viewer: AbstractViewer;
-            try {
-                viewer = new DefaultViewer(undefined);
-                expect(viewer).not.to.exist;
-            } catch (e) {
-                // exception was thrown, we are happy
-                assert.isTrue(true);
-            }
-
-            if (viewer) viewer.dispose();
-        });
-    })*/
-})();
 //}