Matirx specs

1 files changed, 263 insertions, 254 deletions

diff --git a/spec/spec/matrix.js b/spec/spec/matrix.js
index f2fd7a3..30ab873 100644
--- a/spec/spec/matrix.js
+++ b/spec/spec/matrix.js
@@ -1,255 +1,264 @@
 describe('Matrix', function() {
-	var matrix
-
-	describe('initialization', function() {
-		
-		describe('without a source', function() {
-			
-			beforeEach(function() {
-				matrix = new SVG.Matrix
-			})
-
-			it('creates a new matrix with default values', function() {
-				expect(matrix.a).toBe(1)
-				expect(matrix.b).toBe(0)
-				expect(matrix.c).toBe(0)
-				expect(matrix.d).toBe(1)
-				expect(matrix.e).toBe(0)
-				expect(matrix.f).toBe(0)
-			})
-
-			describe('extract()', function() {
-				var extract
-
-				beforeEach(function() {
-					extract = matrix.extract()
-				})
-
-				it('parses translation values', function() {
-					expect(extract.x).toBe(0)
-					expect(extract.y).toBe(0)
-				})
-				it('parses skew values', function() {
-					expect(extract.skewX).toBe(0)
-					expect(extract.skewY).toBe(0)
-				})
-				it('parses scale values', function() {
-					expect(extract.scaleX).toBe(1)
-					expect(extract.scaleY).toBe(1)
-				})
-				it('parses rotatoin value', function() {
-					expect(extract.rotation).toBe(0)
-				})
-			})
-		})
-
-		describe('with an element given', function() {
-			var rect
-
-			beforeEach(function() {
-				rect = draw.rect(100, 100).rotate(-10).translate(40, 50).scale(2)
-				matrix = new SVG.Matrix(rect)
-			})
-
-			it('parses the current transform matrix form an element', function() {
-				expect(matrix.a).toBe(1.9696155786514282)
-				expect(matrix.b).toBe(-0.3472963869571686)
-				expect(matrix.c).toBe(0.3472963869571686)
-				expect(matrix.d).toBe(1.9696155786514282)
-				expect(matrix.e).toBe(-8.373950958251953)
-				expect(matrix.f).toBe(7.758301258087158)
-			})
-
-			describe('extract()', function() {
-
-				it('parses translation values', function() {
-					var extract = new SVG.Matrix(draw.rect(100, 100).translate(40, 50)).extract()
-					expect(extract.x).toBe(40)
-					expect(extract.y).toBe(50)
-				})
-				it('parses skewX value', function() {
-					var extract = new SVG.Matrix(draw.rect(100, 100).skew(25, 0)).extract()
-					expect(approximately(extract.skewX, 0.01)).toBe(25)
-				})
-				it('parses skewX value', function() {
-					var extract = new SVG.Matrix(draw.rect(100, 100).skew(0, 20)).extract()
-					expect(approximately(extract.skewY, 0.01)).toBe(20)
-				})
-				it('parses scale values', function() {
-					var extract = new SVG.Matrix(draw.rect(100, 100).scale(2, 3)).extract()
-					expect(extract.scaleX).toBe(2)
-					expect(extract.scaleY).toBe(3)
-				})
-				it('parses rotatoin value', function() {
-					var extract = new SVG.Matrix(draw.rect(100, 100).rotate(-100)).extract()
-					expect(approximately(extract.rotation, 0.01)).toBe(-100)
-				})
-
-			})
-			
-		})
-
-		describe('with a string given', function() {
-			it('parses the string value correctly', function() {
-				var matrix = new SVG.Matrix('2, 0, 0, 2, 100, 50')
-
-				expect(matrix.a).toBe(2)
-				expect(matrix.b).toBe(0)
-				expect(matrix.c).toBe(0)
-				expect(matrix.d).toBe(2)
-				expect(matrix.e).toBe(100)
-				expect(matrix.f).toBe(50)
-			})
-		})
-
-	})
-
-	describe('morph()', function() {
-		it('stores a given matrix for morphing', function() {
-			var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
-				, matrix2 = new SVG.Matrix(1, 0, 0, 1, 4, 3)
-
-			matrix1.morph(matrix2)
-
-			expect(matrix1.destination).toEqual(matrix2)
-		})
-		it('stores a clone, not the given matrix itself', function() {
-			var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
-				, matrix2 = new SVG.Matrix(1, 0, 0, 1, 4, 3)
-
-			matrix1.morph(matrix2)
-
-			expect(matrix1.destination).not.toBe(matrix2)
-		})
-	})
-
-	describe('at()', function() {
-		it('returns a morphed array at a given position', function() {
-			var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
-				, matrix2 = new SVG.Matrix(1, 0, 0, 1, 4, 3)
-				, matrix3 = matrix1.morph(matrix2).at(0.5)
-
-			expect(matrix1.toString()).toBe('matrix(2,0,0,5,0,0)')
-			expect(matrix2.toString()).toBe('matrix(1,0,0,1,4,3)')
-			expect(matrix3.toString()).toBe('matrix(1.5,0,0,3,2,1.5)')
-		})
-	})
-	
-	describe('multiply()', function() {
-		it('multiplies two matices', function() {
-			var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
-				, matrix2 = new SVG.Matrix(1, 0, 0, 1, 4, 3)
-				, matrix3 = matrix1.multiply(matrix2)
-
-			expect(matrix1.toString()).toBe('matrix(2,0,0,5,0,0)')
-			expect(matrix2.toString()).toBe('matrix(1,0,0,1,4,3)')
-			expect(matrix3.toString()).toBe('matrix(2,0,0,5,8,15)')
-		})
-		it('accepts matrices in any form', function() {
-			var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
-				, matrix2 = matrix1.multiply('1,0,0,1,4,3')
-
-			expect(matrix1.toString()).toBe('matrix(2,0,0,5,0,0)')
-			expect(matrix2.toString()).toBe('matrix(2,0,0,5,8,15)')
-		})
-	})
-
-	describe('add()', function() {
-		it('adds two matices', function() {
-			var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
-				, matrix2 = new SVG.Matrix(1.1, 0, 0, 1.5, 4, 3)
-				, matrix3 = matrix1.add(matrix2)
-
-			expect(matrix1.toString()).toBe('matrix(2,0,0,5,0,0)')
-			expect(matrix2.toString()).toBe('matrix(1.1,0,0,1.5,4,3)')
-			expect(matrix3.toString()).toBe('matrix(2.1,0,0,5.5,4,3)')
-		})
-		it('accepts two matrices in any form', function() {
-			var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
-				, matrix2 = matrix1.add('1.1,0,0,1.5,4,3')
-
-			expect(matrix1.toString()).toBe('matrix(2,0,0,5,0,0)')
-			expect(matrix2.toString()).toBe('matrix(2.1,0,0,5.5,4,3)')
-		})
-	})
-
-	describe('inverse()', function() {
-		it('inverses matrix', function() {
-			var matrix1 = new SVG.Matrix(2, 0, 0, 5, 4, 3)
-				, matrix2 = matrix1.inverse()
-
-			expect(matrix1.toString()).toBe('matrix(2,0,0,5,4,3)')
-			expect(matrix2.toString()).toBe('matrix(0.5,0,0,0.2,-2,-0.6)')
-		})
-	})
-
-	describe('translate()', function() {
-		it('translates matrix by given x and y values', function() {
-			var matrix = new SVG.Matrix(1, 0, 0, 1, 4, 3).translate(10, 12.5)
-
-			expect(matrix.e).toBe(14)
-			expect(matrix.f).toBe(15.5)
-		})
-	})
-
-	describe('scale()', function() {
-		it('performs a uniformal scale with one value', function() {
-			var matrix = new SVG.Matrix(1, 0, 0, 1, 4, 3).scale(3)
-
-			expect(matrix.a).toBe(3)
-			expect(matrix.d).toBe(3)
-			expect(matrix.e).toBe(4)
-			expect(matrix.f).toBe(3)
-		})
-		it('performs a non-uniformal scale with two values', function() {
-			var matrix = new SVG.Matrix(1, 0, 0, 1, 4, 3).scale(2.5, 3.5)
-
-			expect(matrix.a).toBe(2.5)
-			expect(matrix.d).toBe(3.5)
-			expect(matrix.e).toBe(4)
-			expect(matrix.f).toBe(3)
-		})
-		it('performs a uniformal scale at a given center point with three values', function() {
-			var matrix = new SVG.Matrix(1, 0, 0, 1, 4, 3).scale(3, 150, 100)
-
-			expect(matrix.a).toBe(3)
-			expect(matrix.d).toBe(3)
-			expect(matrix.e).toBe(4)
-			expect(matrix.f).toBe(3)
-		})
-	})
-
-	describe('rotate()', function() {
-		
-	})
-
-	describe('flip()', function() {
-		
-	})
-
-	describe('skew()', function() {
-		
-	})
-
-	describe('skew()', function() {
-		
-	})
-
-	describe('native()', function() {
-	  it('returns the node reference', function() {
-	    expect(new SVG.Matrix().native() instanceof SVGMatrix).toBeTruthy()
-	  })
-	})
-
-	describe('toString()', function() {
-		
-	})
-
-})
-
-
-
-
-
-
-
+  var matrix
+
+  describe('initialization', function() {
+    
+    describe('without a source', function() {
+      
+      beforeEach(function() {
+        matrix = new SVG.Matrix
+      })
+
+      it('creates a new matrix with default values', function() {
+        expect(matrix.a).toBe(1)
+        expect(matrix.b).toBe(0)
+        expect(matrix.c).toBe(0)
+        expect(matrix.d).toBe(1)
+        expect(matrix.e).toBe(0)
+        expect(matrix.f).toBe(0)
+      })
+
+      describe('extract()', function() {
+        var extract
+
+        beforeEach(function() {
+          extract = matrix.extract()
+        })
+
+        it('parses translation values', function() {
+          expect(extract.x).toBe(0)
+          expect(extract.y).toBe(0)
+        })
+        it('parses skew values', function() {
+          expect(extract.skewX).toBe(0)
+          expect(extract.skewY).toBe(0)
+        })
+        it('parses scale values', function() {
+          expect(extract.scaleX).toBe(1)
+          expect(extract.scaleY).toBe(1)
+        })
+        it('parses rotatoin value', function() {
+          expect(extract.rotation).toBe(0)
+        })
+      })
+
+      describe('toString()' , function() {
+        it('exports correctly to a string', function() {
+          expect(matrix.toString()).toBe('matrix(1,0,0,1,0,0)')
+        })
+      })
+    })
+
+    describe('with an element given', function() {
+      var rect
+
+      beforeEach(function() {
+        rect = draw.rect(100, 100).rotate(-10).translate(40, 50).scale(2)
+        matrix = new SVG.Matrix(rect)
+      })
+
+      it('parses the current transform matrix form an element', function() {
+        expect(matrix.a).toBe(1.9696155786514282)
+        expect(matrix.b).toBe(-0.3472963869571686)
+        expect(matrix.c).toBe(0.3472963869571686)
+        expect(matrix.d).toBe(1.9696155786514282)
+        expect(matrix.e).toBe(-8.373950958251953)
+        expect(matrix.f).toBe(7.758301258087158)
+      })
+
+      describe('extract()', function() {
+
+        it('parses translation values', function() {
+          var extract = new SVG.Matrix(draw.rect(100, 100).translate(40, 50)).extract()
+          expect(extract.x).toBe(40)
+          expect(extract.y).toBe(50)
+        })
+        it('parses skewX value', function() {
+          var extract = new SVG.Matrix(draw.rect(100, 100).skew(25, 0)).extract()
+          expect(approximately(extract.skewX, 0.01)).toBe(25)
+        })
+        it('parses skewX value', function() {
+          var extract = new SVG.Matrix(draw.rect(100, 100).skew(0, 20)).extract()
+          expect(approximately(extract.skewY, 0.01)).toBe(20)
+        })
+        it('parses scale values', function() {
+          var extract = new SVG.Matrix(draw.rect(100, 100).scale(2, 3)).extract()
+          expect(extract.scaleX).toBe(2)
+          expect(extract.scaleY).toBe(3)
+        })
+        it('parses rotatoin value', function() {
+          var extract = new SVG.Matrix(draw.rect(100, 100).rotate(-100)).extract()
+          expect(approximately(extract.rotation, 0.01)).toBe(-100)
+        })
+
+      })
+
+      describe('toString()' , function() {
+        it('exports correctly to a string', function() {
+          expect(matrix.toString()).toBe('matrix(1.9696155786514282,-0.3472963869571686,0.3472963869571686,1.9696155786514282,-8.373950958251953,7.758301258087158)')
+        })
+      })
+      
+    })
+
+    describe('with a string given', function() {
+      it('parses the string value correctly', function() {
+        var matrix = new SVG.Matrix('2, 0, 0, 2, 100, 50')
+
+        expect(matrix.a).toBe(2)
+        expect(matrix.b).toBe(0)
+        expect(matrix.c).toBe(0)
+        expect(matrix.d).toBe(2)
+        expect(matrix.e).toBe(100)
+        expect(matrix.f).toBe(50)
+      })
+    })
+
+  })
+
+  describe('morph()', function() {
+    it('stores a given matrix for morphing', function() {
+      var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
+        , matrix2 = new SVG.Matrix(1, 0, 0, 1, 4, 3)
+
+      matrix1.morph(matrix2)
+
+      expect(matrix1.destination).toEqual(matrix2)
+    })
+    it('stores a clone, not the given matrix itself', function() {
+      var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
+        , matrix2 = new SVG.Matrix(1, 0, 0, 1, 4, 3)
+
+      matrix1.morph(matrix2)
+
+      expect(matrix1.destination).not.toBe(matrix2)
+    })
+  })
+
+  describe('at()', function() {
+    it('returns a morphed array at a given position', function() {
+      var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
+        , matrix2 = new SVG.Matrix(1, 0, 0, 1, 4, 3)
+        , matrix3 = matrix1.morph(matrix2).at(0.5)
+
+      expect(matrix1.toString()).toBe('matrix(2,0,0,5,0,0)')
+      expect(matrix2.toString()).toBe('matrix(1,0,0,1,4,3)')
+      expect(matrix3.toString()).toBe('matrix(1.5,0,0,3,2,1.5)')
+    })
+  })
+  
+  describe('multiply()', function() {
+    it('multiplies two matices', function() {
+      var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
+        , matrix2 = new SVG.Matrix(1, 0, 0, 1, 4, 3)
+        , matrix3 = matrix1.multiply(matrix2)
+
+      expect(matrix1.toString()).toBe('matrix(2,0,0,5,0,0)')
+      expect(matrix2.toString()).toBe('matrix(1,0,0,1,4,3)')
+      expect(matrix3.toString()).toBe('matrix(2,0,0,5,8,15)')
+    })
+    it('accepts matrices in any form', function() {
+      var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
+        , matrix2 = matrix1.multiply('1,0,0,1,4,3')
+
+      expect(matrix1.toString()).toBe('matrix(2,0,0,5,0,0)')
+      expect(matrix2.toString()).toBe('matrix(2,0,0,5,8,15)')
+    })
+  })
+
+  describe('add()', function() {
+    it('adds two matices', function() {
+      var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
+        , matrix2 = new SVG.Matrix(1.1, 0, 0, 1.5, 4, 3)
+        , matrix3 = matrix1.add(matrix2)
+
+      expect(matrix1.toString()).toBe('matrix(2,0,0,5,0,0)')
+      expect(matrix2.toString()).toBe('matrix(1.1,0,0,1.5,4,3)')
+      expect(matrix3.toString()).toBe('matrix(2.1,0,0,5.5,4,3)')
+    })
+    it('accepts two matrices in any form', function() {
+      var matrix1 = new SVG.Matrix(2, 0, 0, 5, 0, 0)
+        , matrix2 = matrix1.add('1.1,0,0,1.5,4,3')
+
+      expect(matrix1.toString()).toBe('matrix(2,0,0,5,0,0)')
+      expect(matrix2.toString()).toBe('matrix(2.1,0,0,5.5,4,3)')
+    })
+  })
+
+  describe('inverse()', function() {
+    it('inverses matrix', function() {
+      var matrix1 = new SVG.Matrix(2, 0, 0, 5, 4, 3)
+        , matrix2 = matrix1.inverse()
+
+      expect(matrix1.toString()).toBe('matrix(2,0,0,5,4,3)')
+      expect(matrix2.toString()).toBe('matrix(0.5,0,0,0.2,-2,-0.6)')
+    })
+  })
+
+  describe('translate()', function() {
+    it('translates matrix by given x and y values', function() {
+      var matrix = new SVG.Matrix(1, 0, 0, 1, 4, 3).translate(10, 12.5)
+
+      expect(matrix.e).toBe(14)
+      expect(matrix.f).toBe(15.5)
+    })
+  })
+
+  describe('scale()', function() {
+    it('performs a uniformal scale with one value', function() {
+      var matrix = new SVG.Matrix(1, 0, 0, 1, 4, 3).scale(3)
+
+      expect(matrix.a).toBe(3)
+      expect(matrix.d).toBe(3)
+      expect(matrix.e).toBe(4)
+      expect(matrix.f).toBe(3)
+    })
+    it('performs a non-uniformal scale with two values', function() {
+      var matrix = new SVG.Matrix(1, 0, 0, 1, 4, 3).scale(2.5, 3.5)
+
+      expect(matrix.a).toBe(2.5)
+      expect(matrix.d).toBe(3.5)
+      expect(matrix.e).toBe(4)
+      expect(matrix.f).toBe(3)
+    })
+    it('performs a uniformal scale at a given center point with three values', function() {
+      var matrix = new SVG.Matrix(1, 0, 0, 1, 4, 3).scale(3, 150, 100)
+
+      expect(matrix.a).toBe(3)
+      expect(matrix.d).toBe(3)
+      expect(matrix.e).toBe(-2)
+      expect(matrix.f).toBe(-197)
+    })
+    it('performs a non-uniformal scale at a given center point with our values', function() {
+      var matrix = new SVG.Matrix(1, 0, 0, 1, 4, 3).scale(3, 2, 150, 100)
+
+      expect(matrix.a).toBe(3)
+      expect(matrix.d).toBe(2)
+      expect(matrix.e).toBe(-296)
+      expect(matrix.f).toBe(-97)
+    })
+  })
+
+  describe('rotate()', function() {
+    
+  })
+
+  describe('flip()', function() {
+    
+  })
+
+  describe('skew()', function() {
+    
+  })
+
+  describe('skew()', function() {
+    
+  })
+
+  describe('native()', function() {
+    it('returns the node reference', function() {
+      expect(new SVG.Matrix().native() instanceof SVGMatrix).toBeTruthy()
+    })
+  })
+
+})
\ No newline at end of file