Vec3 { @Override public String toString() { return this.x + ", " + this.y + ", " + this.z; } Vec3();  Vec3(double x, double y, double z);  Vec3(Vec3 vector); @Override boolean equals(Object o); @Override int hashCode(); @Override String toString(); float[] toArray(float[] result, int offset); double magnitude(); double magnitudeSquared(); double distanceTo(Vec3 vector); double distanceToSquared(Vec3 vector); Vec3 set(double x, double y, double z); Vec3 set(Vec3 vector); Vec3 swap(Vec3 vector); Vec3 add(Vec3 vector); Vec3 subtract(Vec3 vector); Vec3 multiply(double scalar); Vec3 multiplyByMatrix(Matrix4 matrix); Vec3 divide(double divisor); Vec3 negate(); Vec3 normalize(); double dot(Vec3 vector); Vec3 cross(Vec3 vector); Vec3 cross(Vec3 a, Vec3 b); Vec3 mix(Vec3 vector, double weight); public double x; public double y; public double z; }
@Test public void testToString() throws Exception { final double x1 = 3.1; final double y1 = 4.2; final double z1 = 5.3; Vec3 u = new Vec3(x1, y1, z1); String string = u.toString(); assertTrue("x", string.contains(Double.toString(x1))); assertTrue("y", string.contains(Double.toString(y1))); assertTrue("z", string.contains(Double.toString(z1))); }