Add max profit challenge

online_judges/max_profit/test_max_profit.py

@@ -0,0 +1,21 @@
+from nose.tools import assert_equal, assert_raises
+
+
+class TestMaxProfit(object):
+
+    def test_max_profit(self):
+        solution = Solution()
+        assert_raises(TypeError, solution.find_max_profit, None)
+        assert_raises(ValueError, solution.find_max_profit, [])
+        assert_equal(solution.find_max_profit([8, 5, 3, 2, 1]), -1)
+        assert_equal(solution.find_max_profit([5, 3, 7, 4, 2, 6, 9]), 7)
+        print('Success: test_max_profit')
+
+
+def main():
+    test = TestMaxProfit()
+    test.test_max_profit()
+
+
+if __name__ == '__main__':
+    main()