introduce test cases that fail with my orig. soln

Author: miguelHx

Python/chapter01/1.8 - Zero Matrix/miguel_1.8_sol.py

@@ -124,6 +124,48 @@ def setUp(self):
                     [1, 2],
                     [3, 4]
                 ]
+            ),
+            (
+                [
+                    [0, 1, 2],
+                    [0, 3, 4],
+                    [0, 5, 6],
+                    [0, 7, 8]
+                ],
+                [
+                    [0, 0, 0],
+                    [0, 0, 0],
+                    [0, 0, 0],
+                    [0, 0, 0]
+                ]
+            ),
+            (
+                [
+                    [1, 2, 3, 4],
+                    [5, 6, 0, 8],
+                    [9, 10, 0, 12],
+                    [13, 14, 15, 16]
+                ],
+                [
+                    [1, 2, 0, 4],
+                    [0, 0, 0, 0],
+                    [0, 0, 0, 0],
+                    [13, 14, 0, 16]
+                ]
+            ),
+            (
+                [
+                    [0, 0, 0, 0],
+                    [1, 2, 3, 4],
+                    [5, 6, 7, 8],
+                    [9, 10, 11, 12]
+                ],
+                [
+                    [0, 0, 0, 0],
+                    [0, 0, 0, 0],
+                    [0, 0, 0, 0],
+                    [0, 0, 0, 0]
+                ]
             )
         ]