public static void ReferenceEquals()
{
var e1 = new EOverrider(7);
var e2 = new EOverrider(8);
EOverrider.s_EqualsCalled = false;
Assert.True(Equals(e1, e1));
Assert.False(EOverrider.s_EqualsCalled);
// ReferenceEquals should not call Equals
EOverrider.s_EqualsCalled = false;
Assert.False(ReferenceEquals(e1, e2));
Assert.False(EOverrider.s_EqualsCalled);
EOverrider.s_EqualsCalled = false;
Assert.True(ReferenceEquals(e1, e1));
Assert.False(EOverrider.s_EqualsCalled);
EOverrider.s_EqualsCalled = false;
Assert.True(ReferenceEquals(e1, e1));
Assert.False(EOverrider.s_EqualsCalled);
EOverrider.s_EqualsCalled = false;
Assert.False(ReferenceEquals(e1, null));
Assert.False(EOverrider.s_EqualsCalled);
EOverrider.s_EqualsCalled = false;
Assert.False(ReferenceEquals(null, e1));
Assert.False(EOverrider.s_EqualsCalled);
}
public override bool Equals(object obj)
{
s_EqualsCalled = true;
EOverrider eo = obj as EOverrider;
if (eo == null)
{
return(false);
}
return(eo.X == this.X);
}
public static void TestEqualsAndHashCode()
{
object o1 = new object();
int h1 = o1.GetHashCode();
int h2 = o1.GetHashCode();
Assert.Equal(h1, h2);
bool b;
b = o1.Equals(o1);
Assert.True(b);
b = o1.Equals(null);
Assert.False(b);
object o2 = new object();
b = o1.Equals(o2);
Assert.False(b);
b = Object.Equals(o1, o1);
Assert.True(b);
b = Object.Equals(null, null);
Assert.True(b);
b = Object.Equals(o1, null);
Assert.False(b);
b = Object.Equals(null, o1);
Assert.False(b);
b = Object.Equals(o1, o2);
Assert.False(b);
EOverrider e1 = new EOverrider(7);
EOverrider e2 = new EOverrider(8);
EOverrider.s_EqualsCalled = false;
b = Object.Equals(e1, e2);
Assert.True(EOverrider.s_EqualsCalled);
Assert.False(b);
EOverrider.s_EqualsCalled = false;
b = Object.ReferenceEquals(e1, e2);
Assert.False(EOverrider.s_EqualsCalled);
Assert.False(b);
EOverrider.s_EqualsCalled = false;
b = Object.ReferenceEquals(e1, e1);
Assert.False(EOverrider.s_EqualsCalled);
Assert.True(b);
EOverrider.s_EqualsCalled = false;
b = Object.ReferenceEquals(e1, e1);
Assert.False(EOverrider.s_EqualsCalled);
Assert.True(b);
EOverrider.s_EqualsCalled = false;
b = Object.ReferenceEquals(e1, null);
Assert.False(EOverrider.s_EqualsCalled);
Assert.False(b);
EOverrider.s_EqualsCalled = false;
b = Object.ReferenceEquals(null, e1);
Assert.False(EOverrider.s_EqualsCalled);
Assert.False(b);
}
