Add test for section splitting (for #312)

.github/workflows/tests-ubuntu.yml

@@ -17,8 +17,10 @@ jobs:
       run: pip install --upgrade -r requirements.txt
     - name: fetch upstream cheat sheets
       run: python lib/fetch.py fetch-all
-    - name: run tests
+    - name: run bash tests
       run: bash tests/run-tests.sh
+    - name: run pytest
+      run: pytest lib/
 
   docker:
     runs-on: ubuntu-20.04

lib/cheat_wrapper_test.py

@@ -0,0 +1,25 @@
+from cheat_wrapper import _add_section_name
+
+unchanged = """
+python/:list
+ls
+btrfs~volume
+:intro
+:cht.sh
+python/copy+file
+python/rosetta/:list
+emacs:go-mode/:list
+"""
+
+split = """
+python copy file
+python/copy file
+"""
+
+def test_header_split():
+    for inp in unchanged.strip().splitlines():
+        assert inp == _add_section_name(inp)
+
+    for test in split.strip().split('\n\n'):
+        inp, outp = test.split('\n')
+        assert outp == _add_section_name(inp)

requirements.txt

@@ -15,3 +15,4 @@ pycld2
 colorama
 pyyaml
 python-Levenshtein
+pytest