@Test public void toCachedReturnsExpectedResultIfGroupElementHasP3Representation() { for (int i = 0; i < 10; i++) { // Arrange: final GroupElement g = MathUtils.getRandomGroupElement(); // Act: final GroupElement h1 = g.toCached(); final GroupElement h2 = MathUtils.toRepresentation(g, GroupElement.Representation.CACHED); // Assert: Assert.assertThat(h1, IsEqual.equalTo(h2)); Assert.assertThat( h1.getRepresentation(), IsEqual.equalTo(GroupElement.Representation.CACHED)); Assert.assertThat(h1, IsEqual.equalTo(g)); Assert.assertThat(h1.getX(), IsEqual.equalTo(g.getY().add(g.getX()))); Assert.assertThat(h1.getY(), IsEqual.equalTo(g.getY().subtract(g.getX()))); Assert.assertThat(h1.getZ(), IsEqual.equalTo(g.getZ())); Assert.assertThat(h1.getT(), IsEqual.equalTo(g.getT().multiply(curve.get2D()))); } }