public void EntityIsComparedBasedOnId()
{
// Arrange
var comp = new MediaEntityComparer();
var a = new MediaEntity
{
ID = 123
};
var b = new MediaEntity
{
ID = 123
};
var c = new MediaEntity
{
ID = 111
};
// Act
var ab = comp.Equals(a, b);
var ba = comp.Equals(b, a);
var ac = comp.Equals(a, c);
// Assert
Assert.IsTrue(ab);
Assert.IsTrue(ba);
Assert.IsFalse(ac);
}
public void HashCodeForNullThrowsException()
{
// Arrange
var comp = new MediaEntityComparer();
// Act
var ex = ExceptionAssert.Catch <ArgumentNullException>(() => comp.GetHashCode(null));
// Assert
Assert.IsNotNull(ex);
}
public void HashCodeForNullThrowsException()
{
// Arrange
var comp = new MediaEntityComparer();
// Act
// ReSharper disable once ReturnValueOfPureMethodIsNotUsed
var ex = ExceptionAssert.Catch <ArgumentNullException>(() => comp.GetHashCode(null));
// Assert
Assert.IsNotNull(ex);
}
public void HashCodeForObjectIsCalculatedCorrectly()
{
// Arrange
var comp = new MediaEntityComparer();
var entity = new MediaEntity
{
ID = 123
};
// Act
var hash = comp.GetHashCode(entity);
// Assert
Assert.AreEqual(entity.ID.GetHashCode(), hash);
}
