Fix /ping endpoint by removing time-based exception logic

Removed the deliberate exception that was causing the /ping endpoint to fail
approximately 1/3 of the time when int(time.time()) % 3 == 0. The endpoint
now reliably returns {"pong": True} on all requests.

Also added test coverage for the /ping endpoint to verify correct behavior.

Author: michaeljguarino

app/main.py

@@ -12,9 +12,6 @@
 
 @app.get("/ping")
 def test():
-  if int(time.time()) % 3 == 0:
-    raise Exception("unknown internal error")
-
   return {"pong": True}
 
 @app.get("/hello")

app/test_main.py

@@ -7,3 +7,8 @@
 def test_read_root():
     response = client.get("/")
     assert response.status_code == 200
+
+def test_ping():
+    response = client.get("/ping")
+    assert response.status_code == 200
+    assert response.json() == {"pong": True}