fix(curriculum): add actionable JSON assertion messages

checks/json/json1.py

@@ -1,3 +1,5 @@
-assert data == {"name": "Ada", "language": "Python"}
-assert name == "Ada"
+assert data == {"name": "Ada", "language": "Python"}, (
+    f"data should contain Ada and Python, got {data!r}"
+)
+assert name == "Ada", f"name should be 'Ada', got {name!r}"
 print("json1 ok")

checks/json/json2.py

@@ -1,2 +1,4 @@
-assert text == '{"a": 1, "b": 2}'
+assert text == '{"a": 1, "b": 2}', (
+    "text should be '{\"a\": 1, \"b\": 2}'"
+)
 print("json2 ok")

checks/json/json3.py

@@ -1,2 +1,2 @@
-assert city == "London"
+assert city == "London", f"city should be 'London', got {city!r}"
 print("json3 ok")

checks/json/json4.py

@@ -1,2 +1,4 @@
-assert restored == {"ok": True, "count": 3}
+assert restored == {"ok": True, "count": 3}, (
+    f"restored should contain ok=True and count=3, got {restored!r}"
+)
 print("json4 ok")

checks/json/json5.py

@@ -1,2 +1,2 @@
-assert timezone == "UTC"
+assert timezone == "UTC", f"timezone should be 'UTC', got {timezone!r}"
 print("json5 ok")

checks/json/json6.py

@@ -1,2 +1,4 @@
-assert active_names == ["Ada", "Guido"]
+assert active_names == ["Ada", "Guido"], (
+    f"active_names should be ['Ada', 'Guido'], got {active_names!r}"
+)
 print("json6 ok")