public void Test_GetEfferentRelationshipWith_ReturnsCyclicRelationship_WhenTheSameElementIsSpecifiedAndACyclicRelationshipExists()
{
SoftwareSystem softwareSystem1 = Model.AddSoftwareSystem("System 1", "");
softwareSystem1.Uses(softwareSystem1, "uses");
Relationship relationship = softwareSystem1.GetEfferentRelationshipWith(softwareSystem1);
Assert.Same(softwareSystem1, relationship.Source);
Assert.Equal("uses", relationship.Description);
Assert.Same(softwareSystem1, relationship.Destination);
}
public void Test_GetEfferentRelationshipWith_ReturnsTheRelationship_WhenThereIsARelationship()
{
SoftwareSystem softwareSystem1 = Model.AddSoftwareSystem("System 1", "");
SoftwareSystem softwareSystem2 = Model.AddSoftwareSystem("System 2", "");
softwareSystem1.Uses(softwareSystem2, "uses");
Relationship relationship = softwareSystem1.GetEfferentRelationshipWith(softwareSystem2);
Assert.Same(softwareSystem1, relationship.Source);
Assert.Equal("uses", relationship.Description);
Assert.Same(softwareSystem2, relationship.Destination);
}
public void Test_GetEfferentRelationshipWith_ReturnsNull_WhenTheSameElementIsSpecifiedAndNoCyclicRelationshipExists()
{
SoftwareSystem softwareSystem1 = Model.AddSoftwareSystem("System 1", "");
Assert.Null(softwareSystem1.GetEfferentRelationshipWith(softwareSystem1));
}
public void Test_GetEfferentRelationshipWith_ReturnsNull_WhenANullElementIsSpecified()
{
SoftwareSystem softwareSystem1 = Model.AddSoftwareSystem("System 1", "");
Assert.Null(softwareSystem1.GetEfferentRelationshipWith(null));
}