Matrix3 { @Override public boolean equals(Object o) { if (o == null || this.getClass() != o.getClass()) { return false; } Matrix3 that = (Matrix3) o; return this.m[0] == that.m[0] && this.m[1] == that.m[1] && this.m[2] == that.m[2] && this.m[3] == that.m[3] && this.m[4] == that.m[4] && this.m[5] == that.m[5] && this.m[6] == that.m[6] && this.m[7] == that.m[7] && this.m[8] == that.m[8]; } Matrix3();  Matrix3(double m11, double m12, double m13,
                   double m21, double m22, double m23,
                   double m31, double m32, double m33);  Matrix3(Matrix3 matrix); @Override boolean equals(Object o); @Override int hashCode(); @Override String toString(); Matrix3 set(double m11, double m12, double m13,
                       double m21, double m22, double m23,
                       double m31, double m32, double m33); Matrix3 set(Matrix3 matrix); Matrix3 setTranslation(double x, double y); Matrix3 setRotation(double angleDegrees); Matrix3 setScale(double xScale, double yScale); Matrix3 setToIdentity(); Matrix3 setToTranslation(double x, double y); Matrix3 setToRotation(double angleDegrees); Matrix3 setToScale(double xScale, double yScale); Matrix3 setToVerticalFlip(); Matrix3 setToTileTransform(Sector src, Sector dst); Matrix3 setToMultiply(Matrix3 a, Matrix3 b); Matrix3 multiplyByTranslation(double x, double y); Matrix3 multiplyByRotation(double angleDegrees); Matrix3 multiplyByScale(double xScale, double yScale); Matrix3 multiplyByVerticalFlip(); Matrix3 multiplyByTileTransform(Sector src, Sector dst); Matrix3 multiplyByMatrix(Matrix3 matrix); Matrix3 multiplyByMatrix(double m11, double m12, double m13,
                                    double m21, double m22, double m23,
                                    double m31, double m32, double m33); Matrix3 transpose(); Matrix3 transposeMatrix(Matrix3 matrix); float[] transposeToArray(float[] result, int offset); Matrix3 invert(); Matrix3 invertMatrix(Matrix3 matrix); final double[] m; }
@Test public void testEquals() throws Exception { Matrix3 m1 = new Matrix3(11d, 12d, 13d, 21d, 22d, 23d, 31d, 32d, 33d); Matrix3 m2 = new Matrix3(11d, 12d, 13d, 21d, 22d, 23d, 31d, 32d, 33d); assertEquals("self", m1, m1); assertEquals("identical matrix", m2, m1); }