def test_match(self):
p = PackageTracker()
x1 = self.make_pkg("/", "=dev-libs/X-1:0")
x2 = self.make_pkg("/", "=dev-libs/X-2:0")
x3 = self.make_pkg("/", "=dev-libs/X-3:1")
p.add_pkg(x2)
p.add_pkg(x1)
matches = list(p.match("/", Atom("=dev-libs/X-1")))
self.assertTrue(x1 in matches)
self.assertEqual(len(matches), 1)
matches = list(p.match("/", Atom("dev-libs/X")))
self.assertTrue(x1 is matches[0] and x2 is matches[1])
self.assertEqual(len(matches), 2)
matches = list(p.match("/xxx", Atom("dev-libs/X")))
self.assertEqual(len(matches), 0)
matches = list(p.match("/", Atom("dev-libs/Y")))
self.assertEqual(len(matches), 0)
p.add_pkg(x3)
matches = list(p.match("/", Atom("dev-libs/X")))
self.assertTrue(x1 is matches[0] and x2 is matches[1] and x3 is matches[2])
self.assertEqual(len(matches), 3)
p.remove_pkg(x3)
matches = list(p.match("/", Atom("dev-libs/X")))
self.assertTrue(x1 is matches[0] and x2 is matches[1])
self.assertEqual(len(matches), 2)
