[Test] run behave tests with test plugins outside project root

.github/workflows/testing_external_plugins.yaml

@@ -52,11 +52,15 @@ jobs:
         poetry install --remove-untracked
         poetry install
         poetry run python -m pip install ./tests/external_plugins_src/
+        cd ..
+    # installed test plugins aren't recognized by "behave" if run from the
+    # project's root folder, but "poetry run" doesn't work on folders upstream
+    # from project root
 
     - name: Test with pytest
       if: success() || failure()
-      run: poetry run pytest --junitxml=reports/pytest/results.xml
+      run: pytest --junitxml=reports/pytest/results.xml
 
     - name: Test with behave
       if: success() || failure()
-      run: poetry run behave --no-skipped --format progress2 --junit --junit-directory reports/behave
+      run: behave --no-skipped --format progress2 --junit --junit-directory reports/behave jrnl/features

docs/plugins.md

@@ -165,10 +165,17 @@ situations other than a traditional export. They are:
 
 ## Development Tips
 
-- editable installs (`pip install -e ...`) don't seem to play nice with
+- Editable installs (`pip install -e ...`) don't seem to play nice with
   the namespace layout. If your plugin isn't appearing, try a non-editable
   install of both *jrnl* and your plugin.
+- If you run *jrnl* from the main project root directory (the one that contains
+  *jrnl*'s source code), namespace plugins won't be recognized. This is (I
+  suspect) because the Python interpreter will find your *jrnl* source directory
+  (which doesn't contain your namespace plugins) before it find your
+  "site-packages" directory (i.e. installed packages, which will recognize
+  namespace packages).
 - Don't name your plugin file "testing.py" or it won't be installed (at least
   automatically) by pip.
+- For examples, you can look to the *jrnl*'s internal importers and exporters.
   As well, there are some basic external examples included in *jrnl*'s git repo
   at `tests/external_plugins_src` (including the example code above).

features/environment.py

@@ -11,6 +11,7 @@ except ImportError:
 
 CWD = os.getcwd()
 HERE = Path(__file__).resolve().parent
+TARGET_CWD = HERE.parent  # project root folder
 
 # @see https://behave.readthedocs.io/en/latest/tutorial.html#debug-on-error-in-case-of-step-failures
 BEHAVE_DEBUG_ON_ERROR = False
@@ -22,6 +23,8 @@ def setup_debug_on_error(userdata):
 
 
 def before_all(context):
+    # always start in project root directory
+    os.chdir(TARGET_CWD)
     setup_debug_on_error(context.config.userdata)
 
 
@@ -102,8 +105,8 @@ def before_scenario(context, scenario):
 
 def after_scenario(context, scenario):
     """After each scenario, restore all test data and remove working_dirs."""
-    if os.getcwd() != CWD:
+    if os.getcwd() != TARGET_CWD:
-        os.chdir(CWD)
+        os.chdir(TARGET_CWD)
 
     # only clean up if debugging is off and the scenario passed
     if BEHAVE_DEBUG_ON_ERROR and scenario.status != "failed":