1b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. 2b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 3b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris CraikPermission is hereby granted, free of charge, to any person obtaining a copy 4b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craikof this software and associated documentation files (the "Software"), to deal 5b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craikin the Software without restriction, including without limitation the rights 6b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craikto use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craikcopies of the Software, and to permit persons to whom the Software is 8b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craikfurnished to do so, subject to the following conditions: 9b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 10b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris CraikThe above copyright notice and this permission notice shall be included in 11b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craikall copies or substantial portions of the Software. 12b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 13b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris CraikTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris CraikIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris CraikFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris CraikAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris CraikLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris CraikOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris CraikTHE SOFTWARE. */ 2066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 2166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennisdescribe("vec4", function() { 22b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik var vec3 = require("../../src/gl-matrix/vec3.js"); 23b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik var vec4 = require("../../src/gl-matrix/vec4.js"); 24b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 2566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis var out, vecA, vecB, result; 2666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 2766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { vecA = [1, 2, 3, 4]; vecB = [5, 6, 7, 8]; out = [0, 0, 0, 0]; }); 2866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 2966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("create", function() { 3066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.create(); }); 3166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return a 4 element array initialized to 0s", function() { expect(result).toBeEqualish([0, 0, 0, 0]); }); 3266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 3366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 3466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("clone", function() { 3566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.clone(vecA); }); 3666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return a 4 element array initialized to the values in vecA", function() { expect(result).toBeEqualish(vecA); }); 3766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 3866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 3966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("fromValues", function() { 4066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.fromValues(1, 2, 3, 4); }); 4166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return a 4 element array initialized to the values passed", function() { expect(result).toBeEqualish([1, 2, 3, 4]); }); 4266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 4366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 4466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("copy", function() { 4566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.copy(out, vecA); }); 4666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([1, 2, 3, 4]); }); 4766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 4866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 4966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 5066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("set", function() { 5166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.set(out, 1, 2, 3, 4); }); 5266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([1, 2, 3, 4]); }); 5366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 5466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 5566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 5666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("add", function() { 5766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("with a separate output vector", function() { 5866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.add(out, vecA, vecB); }); 5966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 6066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([6, 8, 10, 12]); }); 6166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 6266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 6366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 6466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 6566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 6666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecA is the output vector", function() { 6766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.add(vecA, vecA, vecB); }); 6866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 6966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecA", function() { expect(vecA).toBeEqualish([6, 8, 10, 12]); }); 7066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecA", function() { expect(result).toBe(vecA); }); 7166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 7266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 7366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 7466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecB is the output vector", function() { 7566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.add(vecB, vecA, vecB); }); 7666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 7766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecB", function() { expect(vecB).toBeEqualish([6, 8, 10, 12]); }); 7866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecB", function() { expect(result).toBe(vecB); }); 7966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 8066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 8166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 8266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 8366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("subtract", function() { 8466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should have an alias called 'sub'", function() { expect(vec4.sub).toEqual(vec4.subtract); }); 8566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 8666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("with a separate output vector", function() { 8766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.subtract(out, vecA, vecB); }); 8866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 8966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([-4, -4, -4, -4]); }); 9066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 9166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 9266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 9366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 9466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 9566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecA is the output vector", function() { 9666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.subtract(vecA, vecA, vecB); }); 9766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 9866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecA", function() { expect(vecA).toBeEqualish([-4, -4, -4, -4]); }); 9966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecA", function() { expect(result).toBe(vecA); }); 10066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 10166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 10266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 10366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecB is the output vector", function() { 10466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.subtract(vecB, vecA, vecB); }); 10566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 10666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecB", function() { expect(vecB).toBeEqualish([-4, -4, -4, -4]); }); 10766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecB", function() { expect(result).toBe(vecB); }); 10866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 10966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 11066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 11166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 11266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("multiply", function() { 11366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should have an alias called 'mul'", function() { expect(vec4.mul).toEqual(vec4.multiply); }); 11466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 11566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("with a separate output vector", function() { 11666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.multiply(out, vecA, vecB); }); 11766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 11866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([5, 12, 21, 32]); }); 11966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 12066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 12166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 12266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 12366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 12466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecA is the output vector", function() { 12566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.multiply(vecA, vecA, vecB); }); 12666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 12766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecA", function() { expect(vecA).toBeEqualish([5, 12, 21, 32]); }); 12866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecA", function() { expect(result).toBe(vecA); }); 12966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 13066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 13166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 13266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecB is the output vector", function() { 13366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.multiply(vecB, vecA, vecB); }); 13466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 13566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecB", function() { expect(vecB).toBeEqualish([5, 12, 21, 32]); }); 13666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecB", function() { expect(result).toBe(vecB); }); 13766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 13866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 13966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 14066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 14166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("divide", function() { 14266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should have an alias called 'div'", function() { expect(vec4.div).toEqual(vec4.divide); }); 14366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 14466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("with a separate output vector", function() { 14566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.divide(out, vecA, vecB); }); 14666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 14766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([0.2, 0.333333, 0.428571, 0.5]); }); 14866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 14966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 15066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 15166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 15266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 15366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecA is the output vector", function() { 15466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.divide(vecA, vecA, vecB); }); 15566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 15666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecA", function() { expect(vecA).toBeEqualish([0.2, 0.333333, 0.428571, 0.5]); }); 15766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecA", function() { expect(result).toBe(vecA); }); 15866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 15966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 16066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 16166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecB is the output vector", function() { 16266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.divide(vecB, vecA, vecB); }); 16366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 16466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecB", function() { expect(vecB).toBeEqualish([0.2, 0.333333, 0.428571, 0.5]); }); 16566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecB", function() { expect(result).toBe(vecB); }); 16666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 16766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 16866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 16966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 17066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("min", function() { 17166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { vecA = [1, 3, 1, 3]; vecB = [3, 1, 3, 1]; }); 17266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 17366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("with a separate output vector", function() { 17466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.min(out, vecA, vecB); }); 17566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 17666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([1, 1, 1, 1]); }); 17766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 17866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 3, 1, 3]); }); 17966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([3, 1, 3, 1]); }); 18066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 18166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 18266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecA is the output vector", function() { 18366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.min(vecA, vecA, vecB); }); 18466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 18566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecA", function() { expect(vecA).toBeEqualish([1, 1, 1, 1]); }); 18666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecA", function() { expect(result).toBe(vecA); }); 18766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([3, 1, 3, 1]); }); 18866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 18966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 19066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecB is the output vector", function() { 19166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.min(vecB, vecA, vecB); }); 19266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 19366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecB", function() { expect(vecB).toBeEqualish([1, 1, 1, 1]); }); 19466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecB", function() { expect(result).toBe(vecB); }); 19566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 3, 1, 3]); }); 19666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 19766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 19866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 19966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("max", function() { 20066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { vecA = [1, 3, 1, 3]; vecB = [3, 1, 3, 1]; }); 20166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 20266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("with a separate output vector", function() { 20366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.max(out, vecA, vecB); }); 20466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 20566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([3, 3, 3, 3]); }); 20666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 20766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 3, 1, 3]); }); 20866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([3, 1, 3, 1]); }); 20966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 21066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 21166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecA is the output vector", function() { 21266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.max(vecA, vecA, vecB); }); 21366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 21466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecA", function() { expect(vecA).toBeEqualish([3, 3, 3, 3]); }); 21566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecA", function() { expect(result).toBe(vecA); }); 21666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([3, 1, 3, 1]); }); 21766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 21866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 21966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecB is the output vector", function() { 22066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.max(vecB, vecA, vecB); }); 22166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 22266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecB", function() { expect(vecB).toBeEqualish([3, 3, 3, 3]); }); 22366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecB", function() { expect(result).toBe(vecB); }); 22466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 3, 1, 3]); }); 22566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 22666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 22766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 22866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("scale", function() { 22966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("with a separate output vector", function() { 23066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.scale(out, vecA, 2); }); 23166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 23266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([2, 4, 6, 8]); }); 23366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 23466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 23566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 23666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 23766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecA is the output vector", function() { 23866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.scale(vecA, vecA, 2); }); 23966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 24066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecA", function() { expect(vecA).toBeEqualish([2, 4, 6, 8]); }); 24166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecA", function() { expect(result).toBe(vecA); }); 24266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 24366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 24466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 245b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik describe("scaleAndAdd", function() { 246b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik describe("with a separate output vector", function() { 247b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik beforeEach(function() { result = vec4.scaleAndAdd(out, vecA, vecB, 0.5); }); 248b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 249b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should place values into out", function() { expect(out).toBeEqualish([3.5, 5, 6.5, 8]); }); 250b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should return out", function() { expect(result).toBe(out); }); 251b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 252b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 253b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik }); 254b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 255b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik describe("when vecA is the output vector", function() { 256b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik beforeEach(function() { result = vec4.scaleAndAdd(vecA, vecA, vecB, 0.5); }); 257b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 258b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should place values into vecA", function() { expect(vecA).toBeEqualish([3.5, 5, 6.5, 8]); }); 259b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should return vecA", function() { expect(result).toBe(vecA); }); 260b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 261b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik }); 262b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 263b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik describe("when vecB is the output vector", function() { 264b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik beforeEach(function() { result = vec4.scaleAndAdd(vecB, vecA, vecB, 0.5); }); 265b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 266b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should place values into vecB", function() { expect(vecB).toBeEqualish([3.5, 5, 6.5, 8]); }); 267b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should return vecB", function() { expect(result).toBe(vecB); }); 268b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 269b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik }); 270b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik }); 271b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 27266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("distance", function() { 27366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should have an alias called 'dist'", function() { expect(vec4.dist).toEqual(vec4.distance); }); 27466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 27566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.distance(vecA, vecB); }); 27666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 27766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return the distance", function() { expect(result).toBeCloseTo(8); }); 27866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 27966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 28066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("squaredDistance", function() { 28166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should have an alias called 'sqrDist'", function() { expect(vec4.sqrDist).toEqual(vec4.squaredDistance); }); 28266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 28366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.squaredDistance(vecA, vecB); }); 28466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 28566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return the squared distance", function() { expect(result).toEqual(64); }); 28666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 28766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 28866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("length", function() { 28966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should have an alias called 'len'", function() { expect(vec4.len).toEqual(vec4.length); }); 29066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 29166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.length(vecA); }); 29266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 29366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return the length", function() { expect(result).toBeCloseTo(5.477225); }); 29466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 29566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 29666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("squaredLength", function() { 29766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should have an alias called 'sqrLen'", function() { expect(vec4.sqrLen).toEqual(vec4.squaredLength); }); 29866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 29966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.squaredLength(vecA); }); 30066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 30166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return the squared length", function() { expect(result).toEqual(30); }); 30266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 30366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 30466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("negate", function() { 30566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("with a separate output vector", function() { 30666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.negate(out, vecA); }); 30766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 30866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([-1, -2, -3, -4]); }); 30966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 31066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 31166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 31266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 31366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecA is the output vector", function() { 31466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.negate(vecA, vecA); }); 31566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 31666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecA", function() { expect(vecA).toBeEqualish([-1, -2, -3, -4]); }); 31766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecA", function() { expect(result).toBe(vecA); }); 31866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 31966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 32066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 32166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("normalize", function() { 32266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { vecA = [5, 0, 0, 0]; }); 32366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 32466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("with a separate output vector", function() { 32566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.normalize(out, vecA); }); 32666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 32766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([1, 0, 0, 0]); }); 32866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 32966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([5, 0, 0, 0]); }); 33066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 33166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 33266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecA is the output vector", function() { 33366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.normalize(vecA, vecA); }); 33466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 33566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecA", function() { expect(vecA).toBeEqualish([1, 0, 0, 0]); }); 33666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecA", function() { expect(result).toBe(vecA); }); 33766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 33866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 33966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 34066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("dot", function() { 34166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.dot(vecA, vecB); }); 34266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 34366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return the dot product", function() { expect(result).toEqual(70); }); 34466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 34566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 34666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 34766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 34866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("lerp", function() { 34966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("with a separate output vector", function() { 35066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.lerp(out, vecA, vecB, 0.5); }); 35166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 35266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into out", function() { expect(out).toBeEqualish([3, 4, 5, 6]); }); 35366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return out", function() { expect(result).toBe(out); }); 35466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 35566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 35666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 35766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 35866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecA is the output vector", function() { 35966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.lerp(vecA, vecA, vecB, 0.5); }); 36066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 36166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecA", function() { expect(vecA).toBeEqualish([3, 4, 5, 6]); }); 36266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecA", function() { expect(result).toBe(vecA); }); 36366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecB", function() { expect(vecB).toBeEqualish([5, 6, 7, 8]); }); 36466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 36566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 36666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when vecB is the output vector", function() { 36766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.lerp(vecB, vecA, vecB, 0.5); }); 36866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 36966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should place values into vecB", function() { expect(vecB).toBeEqualish([3, 4, 5, 6]); }); 37066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecB", function() { expect(result).toBe(vecB); }); 37166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 37266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 37366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 37466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 375b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik describe("random", function() { 376b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik describe("with no scale", function() { 377b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik beforeEach(function() { result = vec4.random(out); }); 378b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 379b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should result in a unit length vector", function() { expect(vec4.length(out)).toBeCloseTo(1.0); }); 380b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should return out", function() { expect(result).toBe(out); }); 381b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik }); 382b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 383b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik describe("with a scale", function() { 384b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik beforeEach(function() { result = vec4.random(out, 5.0); }); 385b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 386b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should result in a unit length vector", function() { expect(vec4.length(out)).toBeCloseTo(5.0); }); 387b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik it("should return out", function() { expect(result).toBe(out); }); 388b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik }); 389b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik }); 390b2cbf1594f8d6e4ba32d384cf379f62a74ed7654Chris Craik 39166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("forEach", function() { 39266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis var vecArray; 39366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 39466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { 39566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis vecArray = [ 39666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 1, 2, 3, 4, 39766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 5, 6, 7, 8, 39866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 0, 0, 0, 0 39966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis ]; 40066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 40166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 40266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when performing operations that take no extra arguments", function() { 40366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.forEach(vecArray, 0, 0, 0, vec4.normalize); }); 40466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 40566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should update all values", function() { 40666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis expect(vecArray).toBeEqualish([ 40766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 0.182574, 0.365148, 0.547722, 0.730296, 40866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 0.379049, 0.454858, 0.530668, 0.606478, 40966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 0, 0, 0, 0 41066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis ]); 41166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 41266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecArray", function() { expect(result).toBe(vecArray); }); 41366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 41466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 41566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when performing operations that takes one extra arguments", function() { 41666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.forEach(vecArray, 0, 0, 0, vec4.add, vecA); }); 41766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 41866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should update all values", function() { 41966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis expect(vecArray).toBeEqualish([ 42066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 2, 4, 6, 8, 42166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 6, 8, 10, 12, 42266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 1, 2, 3, 4 42366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis ]); 42466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 42566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecArray", function() { expect(result).toBe(vecArray); }); 42666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 42766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 42866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 42966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when specifying an offset", function() { 43066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.forEach(vecArray, 0, 4, 0, vec4.add, vecA); }); 43166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 43266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should update all values except the first vector", function() { 43366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis expect(vecArray).toBeEqualish([ 43466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 1, 2, 3, 4, 43566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 6, 8, 10, 12, 43666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 1, 2, 3, 4 43766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis ]); 43866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 43966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecArray", function() { expect(result).toBe(vecArray); }); 44066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 44166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 44266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 44366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when specifying a count", function() { 44466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.forEach(vecArray, 0, 0, 2, vec4.add, vecA); }); 44566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 44666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should update all values except the last vector", function() { 44766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis expect(vecArray).toBeEqualish([ 44866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 2, 4, 6, 8, 44966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 6, 8, 10, 12, 45066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 0, 0, 0, 0 45166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis ]); 45266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 45366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecArray", function() { expect(result).toBe(vecArray); }); 45466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 45566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 45666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 45766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when specifying a stride", function() { 45866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.forEach(vecArray, 8, 0, 0, vec4.add, vecA); }); 45966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 46066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should update all values except the second vector", function() { 46166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis expect(vecArray).toBeEqualish([ 46266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 2, 4, 6, 8, 46366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 5, 6, 7, 8, 46466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 1, 2, 3, 4 46566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis ]); 46666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 46766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecArray", function() { expect(result).toBe(vecArray); }); 46866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should not modify vecA", function() { expect(vecA).toBeEqualish([1, 2, 3, 4]); }); 46966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 47066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 47166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("when calling a function that does not modify the out variable", function() { 47266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { 47366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis result = vec3.forEach(vecArray, 0, 0, 0, function(out, vec) {}); 47466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 47566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 47666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("values should remain unchanged", function() { 47766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis expect(vecArray).toBeEqualish([ 47866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 1, 2, 3, 4, 47966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 5, 6, 7, 8, 48066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 0, 0, 0, 0 48166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis ]); 48266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 48366a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return vecArray", function() { expect(result).toBe(vecArray); }); 48466a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 48566a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 48666a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 48766a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis describe("str", function() { 48866a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis beforeEach(function() { result = vec4.str(vecA); }); 48966a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis 49066a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis it("should return a string representation of the vector", function() { expect(result).toEqual("vec4(1, 2, 3, 4)"); }); 49166a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis }); 49266a37686207944273ced825e0e8b6b6375f8c3deJamie Gennis}); 493