Feature/add

oss/andong_edu.py

@@ -1,3 +1,9 @@
 class AndongEdu:
     def hello(self, name):
         return "Hello, {name}!".format(name=name)
+
+    def ping(self):
+        return "pong"
+
+    def add(self, num1, num2):
+        return num1 * num2

oss/main.py

@@ -10,9 +10,13 @@
 def hello_world(name):
     return edu.hello(name)
 
+@app.route('/ping')
+def ping():
+    return edu.ping()
+
 @app.route('/add/<num1>/<num2>')
 def add(num1, num2):
-    raise NotImplementedError("Not Implemented")
+    return str(edu.add(int(num1), int(num2)))
 
 @app.route('/minus/<num1>/<num2>')
 def minus(num1, num2):

oss/tests/test_andong_edu.py

@@ -4,6 +4,30 @@
 
 
 class TestAndongEdu(TestCase):
-    def test_hello_world(self):
+    def test_hello_world_success(self):
         test_edu = AndongEdu()
         assert "Hello, test!" == test_edu.hello("test")
+
+    def test_hello_world_failure(self):
+        test_edu = AndongEdu()
+        assert "Hello, test123!" != test_edu.hello("test")
+
+    def test_ping_success(self):
+        test_edu = AndongEdu()
+        assert "pong" == test_edu.ping()
+
+    def test_ping_failure(self):
+        test_edu = AndongEdu()
+        assert "pong1" != test_edu.ping()
+
+    def test_add_success1(self):
+        test_edu = AndongEdu()
+        assert 4 == test_edu.add(2,2)
+
+    def test_add_success2(self):
+        test_edu = AndongEdu()
+        assert 2 == test_edu.add(0,2)
+
+    def test_add_success3(self):
+        test_edu = AndongEdu()
+        assert 3 == test_edu.add(1,2)