### Question:
HashCode { public static int compute( Object... objects ) { return compute(0, objects); }  static int compute( Object... objects );  }### Answer:
@Test public void shouldComputeHashCodeForOnePrimitive() { assertThat(HashCode.compute(1), is(not(0))); assertThat(HashCode.compute((long)8), is(not(0))); assertThat(HashCode.compute((short)3), is(not(0))); assertThat(HashCode.compute(1.0f), is(not(0))); assertThat(HashCode.compute(1.0d), is(not(0))); assertThat(HashCode.compute(true), is(not(0))); }
@Test public void shouldComputeHashCodeForMultiplePrimitives() { assertThat(HashCode.compute(1, 2, 3), is(not(0))); assertThat(HashCode.compute((long)8, (long)22, 33), is(not(0))); assertThat(HashCode.compute((short)3, (long)22, true), is(not(0))); }
@Test public void shouldAcceptNoArguments() { assertThat(HashCode.compute(), is(0)); }
@Test public void shouldAcceptNullArguments() { assertThat(HashCode.compute((Object)null), is(0)); assertThat(HashCode.compute("abc", (Object)null), is(not(0))); }