public void DeleteNode_NullNode_ExpectArgumentNullException()
{
//Arrange
var modelProblem = new ModelProblem("problem");
//Act
//Assert
Assert.Throws <ArgumentNullException>(() => modelProblem.DeleteNode(null));
}
public void DeleteNode_NodeIsUsedByElementInDestinationNode_ExpectInvalidOperationException()
{
//Arrange
var modelProblem = new ModelProblem("problem");
var node = modelProblem.AddNode();
var element = modelProblem.AddElement(modelProblem.AddNode(), node);
//Act
//Assert
Assert.Throws <InvalidOperationException>(() => modelProblem.DeleteNode(node));
}
public void DeleteNode_NodeDoesExistInProblem_ExpectNodeRemovedFromCollection()
{
//Arrange
var modelProblem = new ModelProblem("problem");
var node = modelProblem.AddNode();
//Act
modelProblem.DeleteNode(node);
//Assert
Assert.That(modelProblem.Nodes, Is.Empty);
}
public void DeleteNode_NodeDoesNotExistInProblem_ExpectNothingHappens()
{
//Arrange
var modelProblem = new ModelProblem("problem");
var strayNode = new ModelNode(new ModelProblem("otherProblem"), 666);
//Act
modelProblem.DeleteNode(strayNode);
//Assert
Assert.That(modelProblem.Nodes, Is.Empty);
}
public void DeleteNode_ProblemWithSeveralNodes_ExpectNodeIdsAreCorrect()
{
//Arrange
var modelProblem = new ModelProblem("problem");
var node1 = modelProblem.AddNode();
var node2 = modelProblem.AddNode();
var node3 = modelProblem.AddNode();
var node4 = modelProblem.AddNode();
var node5 = modelProblem.AddNode();
//Act
modelProblem.DeleteNode(node1);
//Assert
Assert.AreEqual(node2.Id, 1);
Assert.AreEqual(node3.Id, 2);
Assert.AreEqual(node4.Id, 3);
Assert.AreEqual(node5.Id, 4);
}