public void TestFindPackage()
{
repositoryOne.AddPackage(Helper.MockPackage("foo", "1.0"));
repositoryTwo.AddPackage(Helper.MockPackage("bar", "1.0"));
Assert.AreEqual("foo", repositoryComposite.FindPackage("foo", "1.0").GetName());
Assert.AreEqual("1.0", repositoryComposite.FindPackage("foo", "1.0").GetVersionPretty());
Assert.AreEqual("bar", repositoryComposite.FindPackage("bar", "1.0").GetName());
Assert.AreEqual("1.0", repositoryComposite.FindPackage("bar", "1.0").GetVersionPretty());
Assert.AreEqual(null, repositoryComposite.FindPackage("foo", "2.0"));
}