Add basic tests

Test that venv and virtualenv environments are activated properly.

Author: Coacher

.github/workflows/venv.yml

@@ -0,0 +1,47 @@
+name: Test venv environments activation
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v5
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12" # Vim on Ubuntu supports only 3.12
+
+      - name: Set up Vim
+        run: |
+          sudo apt-get update
+          sudo apt-get install --yes vim
+
+      - name: Set up virtual environment
+        run: |
+          export VIM_VIRTUALENV_TARGET="$(mktemp --directory)"
+          python -m venv "${VIM_VIRTUALENV_TARGET}"
+          echo "VIM_VIRTUALENV_TARGET=${VIM_VIRTUALENV_TARGET}" >> "${GITHUB_ENV}"
+
+      - name: Test internal virtual environment
+        run: |
+          cd "${VIM_VIRTUALENV_TARGET}"
+          vim --not-a-term -u "${GITHUB_WORKSPACE}/.github/workflows/vimrc.github" \
+            -c "call assert_equal(1, virtualenv#state('virtualenv_internal'))" \
+            -c "call assert_equal('venv', virtualenv#state('virtualenv_type'))" \
+            -c "call assert_equal('${VIM_VIRTUALENV_TARGET}', virtualenv#state('virtualenv_directory'))" \
+            -c "call g:ExitTest()"
+
+      - name: Test external virtual environment
+        run: |
+          source "${VIM_VIRTUALENV_TARGET}/bin/activate"
+          vim --not-a-term -u "${GITHUB_WORKSPACE}/.github/workflows/vimrc.github" \
+            -c "call assert_equal(0, virtualenv#state('virtualenv_internal'))" \
+            -c "call assert_equal('venv', virtualenv#state('virtualenv_type'))" \
+            -c "call assert_equal('${VIM_VIRTUALENV_TARGET}', virtualenv#state('virtualenv_directory'))" \
+            -c "call g:ExitTest()"

.github/workflows/vimrc.github

@@ -0,0 +1,9 @@
+set nocompatible
+let &runtimepath = expand('$GITHUB_WORKSPACE')..','..&runtimepath
+
+let g:virtualenv#auto_activate_everywhere = 1
+
+function! g:ExitTest()
+    for l:err in v:errors | echo l:err | endfor
+    execute 'cquit! '..!empty(v:errors)
+endfunction

.github/workflows/virtualenv.yml

@@ -0,0 +1,48 @@
+name: Test virtualenv environments activation
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v5
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12" # Vim on Ubuntu supports only 3.12
+
+      - name: Set up Vim
+        run: |
+          sudo apt-get update
+          sudo apt-get install --yes vim
+
+      - name: Set up virtual environment
+        run: |
+          python -m pip install virtualenv
+          export VIM_VIRTUALENV_TARGET="$(mktemp --directory)"
+          python -m virtualenv "${VIM_VIRTUALENV_TARGET}"
+          echo "VIM_VIRTUALENV_TARGET=${VIM_VIRTUALENV_TARGET}" >> "${GITHUB_ENV}"
+
+      - name: Test internal virtual environment
+        run: |
+          cd "${VIM_VIRTUALENV_TARGET}"
+          vim --not-a-term -u "${GITHUB_WORKSPACE}/.github/workflows/vimrc.github" \
+            -c "call assert_equal(1, virtualenv#state('virtualenv_internal'))" \
+            -c "call assert_equal('virtualenv', virtualenv#state('virtualenv_type'))" \
+            -c "call assert_equal('${VIM_VIRTUALENV_TARGET}', virtualenv#state('virtualenv_directory'))" \
+            -c "call g:ExitTest()"
+
+      - name: Test external virtual environment
+        run: |
+          source "${VIM_VIRTUALENV_TARGET}/bin/activate"
+          vim --not-a-term -u "${GITHUB_WORKSPACE}/.github/workflows/vimrc.github" \
+            -c "call assert_equal(0, virtualenv#state('virtualenv_internal'))" \
+            -c "call assert_equal('virtualenv', virtualenv#state('virtualenv_type'))" \
+            -c "call assert_equal('${VIM_VIRTUALENV_TARGET}', virtualenv#state('virtualenv_directory'))" \
+            -c "call g:ExitTest()"