[cc-frame-viewer] Add gl-matrix to third_party [redux]

tools/cc-frame-viewer/third_party/gl-matrix/spec/gl-matrix/mat2-spec.js

Index: tools/cc-frame-viewer/third_party/gl-matrix/spec/gl-matrix/mat2-spec.js
diff --git a/tools/cc-frame-viewer/third_party/gl-matrix/spec/gl-matrix/mat2-spec.js b/tools/cc-frame-viewer/third_party/gl-matrix/spec/gl-matrix/mat2-spec.js
new file mode 100644
index 0000000000000000000000000000000000000000..18c35153809ddca1df5b501de3d6923c85ffa49a
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+++ b/tools/cc-frame-viewer/third_party/gl-matrix/spec/gl-matrix/mat2-spec.js
@@ -0,0 +1,190 @@
+/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+  * Redistributions of source code must retain the above copyright notice, this
+    list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation 
+    and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
+
+describe("mat2", function() {
+    var out, matA, matB, identity, result;
+
+    beforeEach(function() {
+        matA = [1, 2,
+                3, 4];
+
+        matB = [5, 6,
+                7, 8];
+
+        out =  [0, 0,
+                0, 0];
+
+        identity = [1, 0,
+                    0, 1];
+    });
+
+    describe("create", function() {
+        beforeEach(function() { result = mat2.create(); });
+        it("should return a 4 element array initialized to a 2x2 identity matrix", function() { expect(result).toBeEqualish(identity); });
+    });
+
+    describe("clone", function() {
+        beforeEach(function() { result = mat2.clone(matA); });
+        it("should return a 4 element array initialized to the values in matA", function() { expect(result).toBeEqualish(matA); });
+    });
+
+    describe("copy", function() {
+        beforeEach(function() { result = mat2.copy(out, matA); });
+        it("should place values into out", function() { expect(out).toBeEqualish(matA); });
+        it("should return out", function() { expect(result).toBe(out); });
+    });
+
+    describe("identity", function() {
+        beforeEach(function() { result = mat2.identity(out); });
+        it("should place values into out", function() { expect(result).toBeEqualish(identity); });
+        it("should return out", function() { expect(result).toBe(out); });
+    });
+
+    describe("transpose", function() {
+        describe("with a separate output matrix", function() {
+            beforeEach(function() { result = mat2.transpose(out, matA); });
+            
+            it("should place values into out", function() { expect(out).toBeEqualish([1, 3, 2, 4]); });
+            it("should return out", function() { expect(result).toBe(out); });
+            it("should not modify matA", function() { expect(matA).toBeEqualish([1, 2, 3, 4]); });
+        });
+
+        describe("when matA is the output matrix", function() {
+            beforeEach(function() { result = mat2.transpose(matA, matA); });
+            
+            it("should place values into matA", function() { expect(matA).toBeEqualish([1, 3, 2, 4]); });
+            it("should return matA", function() { expect(result).toBe(matA); });
+        });
+    });
+
+    describe("invert", function() {
+        describe("with a separate output matrix", function() {
+            beforeEach(function() { result = mat2.invert(out, matA); });
+            
+            it("should place values into out", function() { expect(out).toBeEqualish([-2, 1, 1.5, -0.5]); });
+            it("should return out", function() { expect(result).toBe(out); });
+            it("should not modify matA", function() { expect(matA).toBeEqualish([1, 2, 3, 4]); });
+        });
+
+        describe("when matA is the output matrix", function() {
+            beforeEach(function() { result = mat2.invert(matA, matA); });
+            
+            it("should place values into matA", function() { expect(matA).toBeEqualish([-2, 1, 1.5, -0.5]); });
+            it("should return matA", function() { expect(result).toBe(matA); });
+        });
+    });
+
+    describe("adjoint", function() {
+        describe("with a separate output matrix", function() {
+            beforeEach(function() { result = mat2.adjoint(out, matA); });
+            
+            it("should place values into out", function() { expect(out).toBeEqualish([4, -2, -3, 1]); });
+            it("should return out", function() { expect(result).toBe(out); });
+            it("should not modify matA", function() { expect(matA).toBeEqualish([1, 2, 3, 4]); });
+        });
+
+        describe("when matA is the output matrix", function() {
+            beforeEach(function() { result = mat2.adjoint(matA, matA); });
+            
+            it("should place values into matA", function() { expect(matA).toBeEqualish([4, -2, -3, 1]); });
+            it("should return matA", function() { expect(result).toBe(matA); });
+        });
+    });
+
+    describe("determinant", function() {
+        beforeEach(function() { result = mat2.determinant(matA); });
+        
+        it("should return the determinant", function() { expect(result).toEqual(-2); });
+    });
+
+    describe("multiply", function() {
+        it("should have an alias called 'mul'", function() { expect(mat2.mul).toEqual(mat2.multiply); });
+
+        describe("with a separate output matrix", function() {
+            beforeEach(function() { result = mat2.multiply(out, matA, matB); });
+            
+            it("should place values into out", function() { expect(out).toBeEqualish([19, 22, 43, 50]); });
+            it("should return out", function() { expect(result).toBe(out); });
+            it("should not modify matA", function() { expect(matA).toBeEqualish([1, 2, 3, 4]); });
+            it("should not modify matB", function() { expect(matB).toBeEqualish([5, 6, 7, 8]); });
+        });
+
+        describe("when matA is the output matrix", function() {
+            beforeEach(function() { result = mat2.multiply(matA, matA, matB); });
+            
+            it("should place values into matA", function() { expect(matA).toBeEqualish([19, 22, 43, 50]); });
+            it("should return matA", function() { expect(result).toBe(matA); });
+            it("should not modify matB", function() { expect(matB).toBeEqualish([5, 6, 7, 8]); });
+        });
+
+        describe("when matB is the output matrix", function() {
+            beforeEach(function() { result = mat2.multiply(matB, matA, matB); });
+            
+            it("should place values into matB", function() { expect(matB).toBeEqualish([19, 22, 43, 50]); });
+            it("should return matB", function() { expect(result).toBe(matB); });
+            it("should not modify matA", function() { expect(matA).toBeEqualish([1, 2, 3, 4]); });
+        });
+    });
+
+    describe("rotate", function() {
+        describe("with a separate output matrix", function() {
+            beforeEach(function() { result = mat2.rotate(out, matA, Math.PI * 0.5); });
+            
+            it("should place values into out", function() { expect(out).toBeEqualish([2, -1, 4, -3]); });
+            it("should return out", function() { expect(result).toBe(out); });
+            it("should not modify matA", function() { expect(matA).toBeEqualish([1, 2, 3, 4]); });
+        });
+
+        describe("when matA is the output matrix", function() {
+            beforeEach(function() { result = mat2.rotate(matA, matA, Math.PI * 0.5); });
+            
+            it("should place values into matA", function() { expect(matA).toBeEqualish([2, -1, 4, -3]); });
+            it("should return matA", function() { expect(result).toBe(matA); });
+        });
+    });
+
+    describe("scale", function() {
+        var vecA;
+        beforeEach(function() { vecA = [2, 3]; });
+
+        describe("with a separate output matrix", function() {
+            beforeEach(function() { result = mat2.scale(out, matA, vecA); });
+            
+            it("should place values into out", function() { expect(out).toBeEqualish([2, 6, 6, 12]); });
+            it("should return out", function() { expect(result).toBe(out); });
+            it("should not modify matA", function() { expect(matA).toBeEqualish([1, 2, 3, 4]); });
+        });
+
+        describe("when matA is the output matrix", function() {
+            beforeEach(function() { result = mat2.scale(matA, matA, vecA); });
+            
+            it("should place values into matA", function() { expect(matA).toBeEqualish([2, 6, 6, 12]); });
+            it("should return matA", function() { expect(result).toBe(matA); });
+        });
+    });
+
+    describe("str", function() {
+        beforeEach(function() { result = mat2.str(matA); });
+        
+        it("should return a string representation of the matrix", function() { expect(result).toEqual("mat2(1, 2, 3, 4)"); });
+    });
+});