public void GetHashCode_WhenFullNameOnRedditThingIsNull_ThrowsArgumentException()
{
IRedditThing redditThing = CreateRedditThing(fullNameIsNull: true);
IRedditThingComparer <IRedditThing> sut = CreateSut();
sut.GetHashCode(redditThing);
}
public void GetHashCode_WhenRedditThingIsNull_ThrowsArgumentNullException()
{
const IRedditThing redditThing = null;
IRedditThingComparer <IRedditThing> sut = CreateSut();
sut.GetHashCode(redditThing);
}
public void GetHashCode_WhenCalled_ReturnsHashCodeForFullName()
{
string fullName = Guid.NewGuid().ToString("D");
IRedditThing redditThing = CreateRedditThing(fullName: fullName);
IRedditThingComparer <IRedditThing> sut = CreateSut();
int result = sut.GetHashCode(redditThing);
Assert.AreEqual(fullName.GetHashCode(), result);
}
public void Equals_WhenXIsNotNullAndYIsNotNull_AssertFullNameWasCalledOnY()
{
IRedditThing x = CreateRedditThing();
Mock <IRedditThing> yMock = CreateRedditThingMock();
IRedditThingComparer <IRedditThing> sut = CreateSut();
sut.Equals(x, yMock.Object);
yMock.Verify(m => m.FullName, Times.Once);
}
public void Equals_WhenXIsNullAndYIsNotNull_ReturnsFalse()
{
const IRedditThing x = null;
IRedditThing y = CreateRedditThing();
IRedditThingComparer <IRedditThing> sut = CreateSut();
bool result = sut.Equals(x, y);
Assert.IsFalse(result);
}
public void Equals_WhenXIsNotNullAndYIsNull_AssertFullNameWasNotCalledOnX()
{
Mock <IRedditThing> xMock = CreateRedditThingMock();
const IRedditThing y = null;
IRedditThingComparer <IRedditThing> sut = CreateSut();
sut.Equals(xMock.Object, y);
xMock.Verify(m => m.FullName, Times.Never);
}
public void Equals_WhenXIsNotNullAndYIsNotNullAndFullNameAreEqual_ReturnTrue()
{
string fullnameX = Guid.NewGuid().ToString("D");
string fullnameY = fullnameX;
IRedditThing x = CreateRedditThing(fullName: fullnameX);
IRedditThing y = CreateRedditThing(fullName: fullnameY);
IRedditThingComparer <IRedditThing> sut = CreateSut();
bool result = sut.Equals(x, y);
Assert.IsTrue(result);
}
