//------------------------------------------------------------------------- public virtual void test_equalsHashCode() { DoubleMatrix a1 = DoubleMatrix.copyOf(new double[][] { new double[] { 2d, 3d } }); DoubleMatrix a2 = DoubleMatrix.copyOf(new double[][] { new double[] { 2d, 3d } }); DoubleMatrix b = DoubleMatrix.copyOf(new double[][] { new double[] { 3d, 3d } }); DoubleMatrix c = DoubleMatrix.copyOf(new double[][] { new double[] { 2d, 3d }, new double[] { 4d, 5d } }); DoubleMatrix d = DoubleMatrix.copyOf(new double[][] { new double[] { 2d } }); assertEquals(a1.Equals(a1), true); assertEquals(a1.Equals(a2), true); assertEquals(a1.Equals(b), false); assertEquals(a1.Equals(c), false); assertEquals(a1.Equals(d), false); assertEquals(a1.Equals(ANOTHER_TYPE), false); assertEquals(a1.Equals(null), false); assertEquals(a1.GetHashCode(), a2.GetHashCode()); }