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Source  : b66ce20
Branch  : main
Author  : Liam Pattinson <LiamPattinson@users.noreply.github.com>
Time    : 2026-02-17 15:18:28 +0000
Message : Merge pull request #18 from ResearchCodingClub/improve_ci_challenge

Clarify CI pull_request challenge

Author: actions-user

10-CI.md

@@ -296,14 +296,39 @@ always include both `push` and `pull_request` in your testing workflows.
 Can you engineer a situation where a CI job passes on `push` but
 fails on `pull_request`?
 
-- Write a new function, commit the changes, and push it to your `main`
-  branch.
+- Write a function to a new file, commit the changes, and push it to your `main`
+  branch. It can be something as simple as:
+
+```python
+# file: message.py
+
+def message():
+    return "foo"
+````
+
 - Switch to a new branch `my_branch` with `git switch -c my_branch`,
-  and write a test for that function.
+  and write a test for that function in a new file:
+
+```python
+# file: test_message.py
+from message import message
+
+def test_message():
+    assert message() == "foo"
+```
+
 - Check that the test passes, and commit it.
 - Push `my_branch` to GitHub with `git push -u origin my_branch`,
   but don't raise a pull request yet.
-- Return to your `main` branch, and modify the function being tested.
+- Return to your `main` branch, and modify the function being tested:
+
+```python
+# file: message.py
+
+def message():
+    return "bar"
+```
+
 - Push the changes to `main`.
 - Now raise a pull request from `my_branch` into `main`.
 

md5sum.txt

@@ -14,7 +14,7 @@
 "episodes/07-fixtures.Rmd" "3b74462f3bfc250338ca8e1f64675ad0" "site/built/07-fixtures.md" "2026-02-17"
 "episodes/08-parametrization.Rmd" "7731b88a93e54e205a45dd3ceeae9df2" "site/built/08-parametrization.md" "2026-02-17"
 "episodes/09-testing-output-files.Rmd" "3ec8b815934521f0a4d244bcb585a8d6" "site/built/09-testing-output-files.md" "2026-02-17"
-"episodes/10-CI.Rmd" "293ff61e46e7172894ff4955b0cc5d8a" "site/built/10-CI.md" "2026-02-17"
+"episodes/10-CI.Rmd" "eb537ca2be5006b0fa4d6d2ce821574f" "site/built/10-CI.md" "2026-02-17"
 "instructors/instructor-notes.md" "cae72b6712578d74a49fea7513099f8c" "site/built/instructor-notes.md" "2026-02-17"
 "learners/reference.md" "1e67e9d33803966d818d4be17ae556f9" "site/built/reference.md" "2026-02-17"
 "learners/setup.md" "8dd30b446b675c08ef97d21c8a807c68" "site/built/setup.md" "2026-02-17"