Refactor: convert to test class to make the per method fixture easier…

… to use

mars-rover/test/test_rover.py

@@ -1,26 +1,27 @@
 from nose.tools import *
 import rover
 
-def setup():
-    global r
-    r = rover.Rover(10, 21, 'N')
+class TestRover:
 
-def test_initial_x():
-    assert_equal(10, r.x)
+    def setup(self):
+        global r
+        r = rover.Rover(10, 21, 'N')
 
-def test_initial_y():
-    assert_equal(21, r.y)
+    def test_initial_x(self):
+        assert_equal(10, r.x)
 
-def test_initial_orientation():
-    assert_equal('N', r.orientation)
+    def test_initial_y(self):
+        assert_equal(21, r.y)
 
-def test_move_f():
-    r.move(list("f"))
-    assert_equal(22, r.y)
-    assert_equal(10, r.x)
+    def test_initial_orientation(self):
+        assert_equal('N', r.orientation)
 
-@with_setup(setup)
-def test_move_b():
-    r.move(list("b"))
-    assert_equal(10, r.x)
-    assert_equal(20, r.y)
+    def test_move_f(self):
+        r.move(list("f"))
+        assert_equal(22, r.y)
+        assert_equal(10, r.x)
+
+    def test_move_b(self):
+        r.move(list("b"))
+        assert_equal(10, r.x)
+        assert_equal(20, r.y)