public void Should_Throw_If_Dependency_Already_Exist()
{
// Given
var task = new CakeTask("task");
task.AddDependee("other");
// When
var result = Record.Exception(() => task.AddDependee("other"));
// Then
Assert.IsType <CakeException>(result);
Assert.Equal("The task 'task' already is a dependee of 'other'.", result?.Message);
}
public void Should_Add_Dependency_If_Not_Already_Present()
{
// Given
var task = new CakeTask("task");
// When
task.AddDependee("other");
// Then
Assert.Single(task.Dependees);
Assert.Equal("other", task.Dependees[0].Name);
}
public void Should_Not_Throw_When_An_Reverse_Dependency_Is_Depending_On_An_Optional_Task_That_Does_Not_Exist()
{
// Given
var task = new CakeTask("A");
task.AddDependee("C", required: false);
var tasks = new List <CakeTask> {
task
};
// When
var result = Record.Exception(() => CakeGraphBuilder.Build(tasks));
// Then
Assert.Null(result);
}
public void Should_Throw_When_Reverse_Dependency_Is_Depending_On_Task_That_Does_Not_Exist()
{
// Given
var task = new CakeTask("A");
task.AddDependee("C");
var tasks = new List <CakeTask> {
task
};
// When
var result = Record.Exception(() => CakeGraphBuilder.Build(tasks));
// Then
Assert.NotNull(result);
Assert.Equal("Task 'A' has specified that it's a dependency for task 'C' which does not exist.", result.Message);
}
public void Should_Create_Edges_Between_Reversed_Dependencies()
{
// Given
var task1 = new CakeTask("A");
var task2 = new CakeTask("B");
task2.AddDependee("A");
var graph = CakeGraphBuilder.Build(new List <CakeTask>
{
task1, task2
});
// When
var result = graph.Edges.SingleOrDefault();
// Then
Assert.NotNull(result);
Assert.Equal("B", result.Start);
Assert.Equal("A", result.End);
}
