add test for coin change function

algorithms/dynamic_programming/test_coin_change.py

@@ -0,0 +1,92 @@
+from coin_change import min_coins
+
+def test_case_1():
+    print("\nTest min_coins function - Test case 1:")
+    try:
+        min_coins([], 0)
+    except Exception as e:
+        print("Failed")
+        print(e)
+
+def test_case_2():
+    print("\nTest min_coins function - Test case 2:")
+    try:
+        min_coins([], 1)
+    except Exception as e:
+        print("Failed")
+        print(e)
+
+def test_case_3():
+    print("\nTest min_coins function - Test case 3:")
+    try:
+        min_coins([2], 0)
+    except Exception as e:
+        print("Failed")
+        print(e)
+
+def test_case_4():
+    print("\nTest min_coins function - Test case 4:")
+    try:
+        min_coins([3], 2)
+    except Exception as e:
+        print("Failed")
+        print(e)
+
+def test_case_5():
+    print("\nTest min_coins function - Test case 5:")
+    try:
+        min_coins([0], 0)
+    except Exception as e:
+        print("Failed")
+        print(e)
+
+def test_case_6():
+    print("\nTest min_coins function - Test case 6:")
+    try:
+        min_coins([1], 3)
+    except Exception as e:
+        print("Failed")
+        print(e)
+
+def test_case_7():
+    print("\nTest min_coins function - Test case 7:")
+    try:
+        min_coins([3,1], 2)
+    except Exception as e:
+        print("Failed")
+        print(e)
+
+def test_case_8():
+    print("\nTest min_coins function - Test case 8:")
+    try:
+        min_coins([3,0], 2)
+    except Exception as e:
+        print("Failed")
+        print(e)
+
+def test_case_9():
+    print("\nTest min_coins function - Test case 9:")
+    try:
+        min_coins([3,5,7,2], 6)
+    except Exception as e:
+        print("Failed")
+        print(e)
+
+def test_case_10():
+    print("\nTest min_coins function - Test case 10:")
+    try:
+        min_coins([1,2,3,4], 10)
+    except Exception as e:
+        print("Failed")
+        print(e)
+
+test_case_1()
+test_case_2()
+test_case_3()
+test_case_4()
+test_case_5()
+test_case_6()
+test_case_7()
+test_case_8()
+test_case_9()
+test_case_10()