spiral matrix and prime factors exercise

python/spiral-matrix/spiral_matrix_test.py

@@ -0,0 +1,51 @@
+import unittest
+
+from spiral_matrix import spiral_matrix
+
+
+# Tests adapted from `problem-specifications//canonical-data.json` @ v1.1.0
+
+
+class SpiralMatrixTest(unittest.TestCase):
+    def test_empty_spiral(self):
+        self.assertEqual(spiral_matrix(0), [
+        ])
+
+    def test_trivial_spiral(self):
+        self.assertEqual(spiral_matrix(1), [
+            [1]
+        ])
+
+    def test_spiral_of_size_2(self):
+        self.assertEqual(spiral_matrix(2), [
+            [1, 2],
+            [4, 3]
+        ])
+
+    def test_spiral_of_size_3(self):
+        self.assertEqual(spiral_matrix(3), [
+            [1, 2, 3],
+            [8, 9, 4],
+            [7, 6, 5]
+        ])
+
+    def test_spiral_of_size_4(self):
+        self.assertEqual(spiral_matrix(4), [
+            [1,  2,  3,  4],
+            [12, 13, 14, 5],
+            [11, 16, 15, 6],
+            [10, 9,  8,  7]
+        ])
+
+    def test_spiral_of_size_5(self):
+        self.assertEqual(spiral_matrix(5), [
+            [1,  2,  3,  4,  5],
+            [16, 17, 18, 19, 6],
+            [15, 24, 25, 20, 7],
+            [14, 23, 22, 21, 8],
+            [13, 12, 11, 10, 9]
+        ])
+
+
+if __name__ == '__main__':
+    unittest.main()