@Test public void toP3ReturnsExpectedResultIfGroupElementHasP3Representation() { for (int i = 0; i < 10; i++) { // Arrange: final GroupElement g = MathUtils.getRandomGroupElement(); // Act: final GroupElement h = g.toP3(); // Assert: Assert.assertThat(h, IsEqual.equalTo(g)); Assert.assertThat(h.getRepresentation(), IsEqual.equalTo(GroupElement.Representation.P3)); Assert.assertThat(h, IsEqual.equalTo(g)); Assert.assertThat(h.getX(), IsEqual.equalTo(g.getX())); Assert.assertThat(h.getY(), IsEqual.equalTo(g.getY())); Assert.assertThat(h.getZ(), IsEqual.equalTo(g.getZ())); Assert.assertThat(h.getT(), IsEqual.equalTo(g.getT())); } }
@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()))); } }
@Test public void toP3ReturnsExpectedResultIfGroupElementHasP1P1Representation() { for (int i = 0; i < 10; i++) { // Arrange: final GroupElement g = MathUtils.toRepresentation( MathUtils.getRandomGroupElement(), GroupElement.Representation.P1P1); // Act: final GroupElement h1 = g.toP3(); final GroupElement h2 = MathUtils.toRepresentation(g, GroupElement.Representation.P3); // Assert: Assert.assertThat(h1, IsEqual.equalTo(h2)); Assert.assertThat(h1.getRepresentation(), IsEqual.equalTo(GroupElement.Representation.P3)); Assert.assertThat(h1.getX(), IsEqual.equalTo(g.getX().multiply(g.getT()))); Assert.assertThat(h1.getY(), IsEqual.equalTo(g.getY().multiply(g.getZ()))); Assert.assertThat(h1.getZ(), IsEqual.equalTo(g.getZ().multiply(g.getT()))); Assert.assertThat(h1.getT(), IsEqual.equalTo(g.getX().multiply(g.getY()))); } }