public void testEquals() {
assertTrue(hm1.equals(hm1));
assertTrue(hm1.equals(hm2));
assertTrue(!hm1.equals(hm3));
assertTrue(!hm1.equals(hm4));
assertTrue(hm2.equals(hm1));
assertTrue(hm2.equals(hm2));
assertTrue(!hm2.equals(hm3));
assertTrue(!hm2.equals(hm4));
assertTrue(!hm3.equals(hm1));
assertTrue(!hm3.equals(hm2));
assertTrue(hm3.equals(hm3));
assertTrue(!hm3.equals(hm4));
assertTrue(!hm4.equals(hm1));
assertTrue(!hm4.equals(hm2));
assertTrue(!hm4.equals(hm3));
assertTrue(hm4.equals(hm4));
}
public void testHashCode() {
assertTrue(hm1.hashCode() == hm1.hashCode());
assertTrue(hm1.hashCode() == hm2.hashCode());
assertTrue(hm1.hashCode() != hm3.hashCode());
assertTrue(hm1.hashCode() != hm4.hashCode());
assertTrue(hm2.hashCode() == hm1.hashCode());
assertTrue(hm2.hashCode() == hm2.hashCode());
assertTrue(hm2.hashCode() != hm3.hashCode());
assertTrue(hm2.hashCode() != hm4.hashCode());
assertTrue(hm3.hashCode() != hm1.hashCode());
assertTrue(hm3.hashCode() != hm2.hashCode());
assertTrue(hm3.hashCode() == hm3.hashCode());
assertTrue(hm3.hashCode() != hm4.hashCode());
assertTrue(hm4.hashCode() != hm1.hashCode());
assertTrue(hm4.hashCode() != hm2.hashCode());
assertTrue(hm4.hashCode() != hm3.hashCode());
assertTrue(hm4.hashCode() == hm4.hashCode());
}