curriculum: consolidate actionable assertion messages

checks/context_managers/context_managers8.py

@@ -1,3 +1,4 @@
+# checks/context_managers/context_managers8.py
 assert in_block_acquired is True, "resource should be acquired inside the with-block"
 assert r.acquired is False, "resource should be released after the with-block"
 assert r.release_log == ["released"], (
@@ -8,7 +9,7 @@
 with ManagedPool(r) as res2:
     pass
 
-assert r.acquired is False
+assert r.acquired is False, "resource should be released after the second with-block"
 assert r.release_log == ["released", "released"], (
     f"release_log should have two entries after two uses, got {r.release_log!r}"
 )

checks/datetime/datetime7.py

@@ -1,2 +1,5 @@
-assert appointment.isoformat() == "2026-05-23T14:45:00"
+# checks/datetime/datetime7.py
+assert appointment.isoformat() == "2026-05-23T14:45:00", (
+    "appointment should use ISO format '2026-05-23T14:45:00'"
+)
 print("datetime7 ok")

checks/datetime/datetime8.py

@@ -1,5 +1,6 @@
+# checks/datetime/datetime8.py
 from datetime import date
 
-assert earliest == date(2024, 1, 1)
-assert latest == date(2026, 5, 23)
+assert earliest == date(2024, 1, 1), f"Expected earliest date to be date(2024, 1, 1), got {earliest!r}"
+assert latest == date(2026, 5, 23), f"Expected latest date to be date(2026, 5, 23), got {latest!r}"
 print("datetime8 ok")

checks/decorators/decorators10.py

@@ -1,12 +1,19 @@
-assert slow_square(4) == 16
-assert slow_square(5) == 25
+# checks/decorators/decorators10.py
+assert slow_square(4) == 16, "slow_square(4) should return 16"
+assert slow_square(5) == 25, "slow_square(5) should return 25"
 # Second calls must hit the cache, not recompute
-assert slow_square(4) == 16
-assert slow_square(5) == 25
+assert (
+    slow_square(4) == 16
+), "cached slow_square(4) call should return 16"
+assert (
+    slow_square(5) == 25
+), "cached slow_square(5) call should return 25"
 assert call_count == 2, (
     f"slow_square should have been called exactly 2 times (once per unique arg), "
     f"but call_count is {call_count}"
 )
 assert (4,) in slow_square.cache, "cache should contain key (4,) for arg 4"
-assert slow_square.cache[(4,)] == 16
+assert (
+    slow_square.cache[(4,)] == 16
+), f"slow_square.cache[(4,)] should be 16, got {slow_square.cache[(4,)]}"
 print("decorators10 ✓")

checks/functions/functions1.py

@@ -1,9 +1,10 @@
-assert average(2, 4) == 3
-assert average(10, 20) == 15
-assert average(-2, -4) == -3
-assert average(-10, -20) == -15
-assert average(1.5, 2.5) == 2
-assert average(0.5, 1.5) == 1
-assert average(0, 0) == 0
-assert average(3, 4.5) == 3.75
+# checks/functions/functions1.py
+assert average(2, 4) == 3, "average(2, 4) should return 3"
+assert average(10, 20) == 15, "average(10, 20) should return 15"
+assert average(-2, -4) == -3, "average(-2, -4) should return -3"
+assert average(-10, -20) == -15, "average(-10, -20) should return -15"
+assert average(1.5, 2.5) == 2, "average(1.5, 2.5) should return 2"
+assert average(0.5, 1.5) == 1, "average(0.5, 1.5) should return 1"
+assert average(0, 0) == 0, "average(0, 0) should return 0"
+assert average(3, 4.5) == 3.75, "average(3, 4.5) should return 3.75"
 print("functions1 ✓")

checks/functions/functions2.py

@@ -1,4 +1,5 @@
+# checks/functions/functions2.py
 assert callable(greet), "greet should be a function"
-assert greet() == "hello"
-assert message == "hello"
+assert greet() == "hello", "greet() should return 'hello'"
+assert message == "hello", f"message should be 'hello', got {message!r}"
 print("functions2 ✓")

checks/functions/functions3.py

@@ -1,6 +1,7 @@
+# checks/functions/functions3.py
 assert callable(double), "double should be a function"
-assert double(3) == 6
-assert double(0) == 0
-assert double(-5) == -10
-assert double(2.5) == 5.0
+assert double(3) == 6, "double(3) should return 6"
+assert double(0) == 0, "double(0) should return 0"
+assert double(-5) == -10, "double(-5) should return -10"
+assert double(2.5) == 5.0, "double(2.5) should return 5.0"
 print("functions3 ✓")

checks/json/json7.py

@@ -1,3 +1,4 @@
-assert settings["theme"] == "dark"
-assert encoded == '{"font_size": 12, "theme": "dark"}'
+# checks/json/json7.py
+assert settings["theme"] == "dark", f"Expected settings['theme'] to be 'dark', got {settings.get('theme')!r}"
+assert encoded == '{"font_size": 12, "theme": "dark"}', f"Expected encoded JSON string '{{\"font_size\": 12, \"theme\": \"dark\"}}', got {encoded!r}"
 print("json7 ok")

checks/json/json8.py

@@ -1,4 +1,5 @@
-assert decoded == original
-assert tag_count == 2
-assert level == 3
+# checks/json/json8.py
+assert decoded == original, f"Expected decoded dict to equal original {original!r}, got {decoded!r}"
+assert tag_count == 2, f"Expected tag_count to be 2, got {tag_count!r}"
+assert level == 3, f"Expected level to be 3, got {level!r}"
 print("json8 ok")

checks/recursion/recursion1.py

@@ -1,5 +1,8 @@
-assert countdown(0) == [0]
-assert countdown(1) == [1, 0]
-assert countdown(3) == [3, 2, 1, 0]
-assert countdown(5) == [5, 4, 3, 2, 1, 0]
+# checks/recursion/recursion1.py
+assert countdown(0) == [0], "countdown(0) should return [0]"
+assert countdown(1) == [1, 0], "countdown(1) should return [1, 0]"
+assert countdown(3) == [3, 2, 1, 0], "countdown(3) should return [3, 2, 1, 0]"
+assert countdown(5) == [5, 4, 3, 2, 1, 0], (
+    "countdown(5) should return [5, 4, 3, 2, 1, 0]"
+)
 print("recursion1 ✓")

checks/recursion/recursion2.py

@@ -1,5 +1,6 @@
-assert factorial(0) == 1
-assert factorial(1) == 1
-assert factorial(5) == 120
-assert factorial(6) == 720
+# checks/recursion/recursion2.py
+assert factorial(0) == 1, "factorial(0) should be 1"
+assert factorial(1) == 1, "factorial(1) should be 1"
+assert factorial(5) == 120, "factorial(5) should be 120"
+assert factorial(6) == 720, "factorial(6) should be 720"
 print("recursion2 ✓")

checks/recursion/recursion3.py

@@ -1,6 +1,9 @@
-assert recursive_sum([]) == 0
-assert recursive_sum([5]) == 5
-assert recursive_sum([1, 2, 3]) == 6
-assert recursive_sum([10, 20, 30, 40]) == 100
-assert recursive_sum([-1, -2, 3]) == 0
+# checks/recursion/recursion3.py
+assert recursive_sum([]) == 0, "recursive_sum([]) should be 0"
+assert recursive_sum([5]) == 5, "recursive_sum([5]) should be 5"
+assert recursive_sum([1, 2, 3]) == 6, "recursive_sum([1, 2, 3]) should be 6"
+assert recursive_sum([10, 20, 30, 40]) == 100, (
+    "recursive_sum([10, 20, 30, 40]) should be 100"
+)
+assert recursive_sum([-1, -2, 3]) == 0, "recursive_sum([-1, -2, 3]) should be 0"
 print("recursion3 ✓")

checks/recursion/recursion4.py

@@ -1,6 +1,11 @@
-assert count_items([]) == 0
-assert count_items([42]) == 1
-assert count_items([1, 2, 3]) == 3
-assert count_items(["a", "b", "c", "d"]) == 4
-assert count_items(list(range(10))) == 10
+# checks/recursion/recursion4.py
+assert count_items([]) == 0, "count_items([]) should return 0"
+assert count_items([42]) == 1, "count_items([42]) should return 1"
+assert count_items([1, 2, 3]) == 3, "count_items([1, 2, 3]) should return 3"
+assert count_items(["a", "b", "c", "d"]) == 4, (
+    'count_items(["a", "b", "c", "d"]) should return 4'
+)
+assert count_items(list(range(10))) == 10, (
+    "count_items(list(range(10))) should return 10"
+)
 print("recursion4 ✓")

checks/recursion/recursion5.py

@@ -1,7 +1,8 @@
-assert fibonacci(0) == 0
-assert fibonacci(1) == 1
-assert fibonacci(2) == 1
-assert fibonacci(5) == 5
-assert fibonacci(7) == 13
-assert fibonacci(10) == 55
+# checks/recursion/recursion5.py
+assert fibonacci(0) == 0, "fibonacci(0) should return 0"
+assert fibonacci(1) == 1, "fibonacci(1) should return 1"
+assert fibonacci(2) == 1, "fibonacci(2) should return 1"
+assert fibonacci(5) == 5, "fibonacci(5) should return 5"
+assert fibonacci(7) == 13, "fibonacci(7) should return 13"
+assert fibonacci(10) == 55, "fibonacci(10) should return 55"
 print("recursion5 ✓")