public void preceeding()
{
theGraph.Preceeding("before-b", "b");
theGraph.CompileDependencies(new PackageLog());
theGraph.FileDependencyFor("before-b").MustBeAfter(theGraph.FileDependencyFor("b")).ShouldBeFalse();
theGraph.FileDependencyFor("b").MustBeAfter(theGraph.FileDependencyFor("before-b")).ShouldBeTrue();
ScriptNamesFor("b").ShouldHaveTheSameElementsAs("b");
ScriptNamesFor("b", "before-b").ShouldHaveTheSameElementsAs("before-b", "b");
ScriptNamesFor("before-b").ShouldHaveTheSameElementsAs("before-b");
}