public void GivenNodeADependsOnNodeBWhichDependsOnNodeC_WhenNodeCIsMadeDependantOnNodeA_ThenExceptionRaised()
{
// Arrange.
var testObject = new NodeDependencyManager();
var nodeA = Substitute.For <INode>();
var nodeB = Substitute.For <INode>();
var nodeC = Substitute.For <INode>();
nodeA.Id.Returns(1);
nodeB.Id.Returns(2);
nodeC.Id.Returns(3);
testObject.AddDependency(nodeA, nodeB);
testObject.AddDependency(nodeB, nodeC);
// Act.
// Assert.
try
{
testObject.AddDependency(nodeC, nodeA);
}
catch (NodeMappingException)
{
Assert.Pass();
}
Assert.Fail();
}
public void GivenNodeWithIndirectDependencies_WhenDependenciesRetrieved_ThenCorrectNodesAreReturned()
{
// Arrange.
var testObject = new NodeDependencyManager();
var node0 = Substitute.For <INode>();
var node1 = Substitute.For <INode>();
var node1_1 = Substitute.For <INode>();
var node1_2 = Substitute.For <INode>();
node0.Id.Returns(1);
node1.Id.Returns(2);
node1_1.Id.Returns(3);
node1_2.Id.Returns(4);
testObject.AddDependency(node0, node1);
testObject.AddDependency(node1, node1_1);
testObject.AddDependency(node1, node1_2);
// Act.
IEnumerable <INode> dependencies = testObject.GetDependencies(node0, true);
// Assert.
Assert.That(dependencies.Contains(node1));
Assert.That(dependencies.Contains(node1_1));
Assert.That(dependencies.Contains(node1_2));
Assert.That(!dependencies.Contains(node0));
}
public void GivenNodeAAndNodeB_WhenNodeAMadeDependentOnNodeB_ThenNodeBReturnedAsADependencyOfNodeA()
{
// Arrange.
var testObject = new NodeDependencyManager();
var nodeA = Substitute.For <INode>();
var nodeB = Substitute.For <INode>();
nodeA.Id.Returns(1);
nodeB.Id.Returns(2);
// Act.
testObject.AddDependency(nodeA, nodeB);
// Assert.
bool result = testObject.IsDependant(nodeA, nodeB);
Assert.IsTrue(result);
}