Only run unit tests on linux for PRs (#7252)

* Only run unit tests on linux for PRs

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Run unit tests on all systems periodically

Signed-off-by: Sebastian Malton <sebastian@malton.name>

---------

Signed-off-by: Sebastian Malton <sebastian@malton.name>

.github/workflows/cron-test.yaml

@@ -0,0 +1,54 @@
+name: Cron Test
+on:
+  schedule:
+    - cron: "0 0 * * 1" # Run on the first day over every week
+jobs:
+  test:
+    name: cron unit tests on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04, macos-11, windows-2019]
+        node-version: [16.x]
+    steps:
+      - name: Checkout Release from lens
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Add the current IP address, long hostname and short hostname record to /etc/hosts file
+        if: runner.os == 'Linux'
+        run: |
+          echo -e "$(ip addr show eth0 | grep "inet\b" | awk '{print $2}' | cut -d/ -f1)\t$(hostname -f) $(hostname -s)" | sudo tee -a /etc/hosts
+
+      - name: Using Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Get npm cache directory path
+        if: ${{ runner.os != 'Windows' }}
+        id: npm-cache-dir-path
+        shell: bash
+        run: echo "dir=$(npm config get cache)" >> $GITHUB_OUTPUT
+
+      - uses: actions/cache@v3
+        if: ${{ runner.os != 'Windows' }}
+        id: npm-cache # use this to check for `cache-hit` (`steps.npm-cache.outputs.cache-hit != 'true'`)
+        with:
+          path: ${{ steps.npm-cache-dir-path.outputs.dir }}
+          key: ${{ runner.os }}-npm-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-npm-
+
+      - uses: nick-fields/retry@v2
+        name: Install dependencies
+        with:
+          timeout_minutes: 20
+          max_attempts: 3
+          retry_on: error
+          command: npm ci
+
+      - run: npm run test:unit
+        name: Run tests

.github/workflows/test.yml

@@ -57,7 +57,7 @@ jobs:
 
       - run: npm run test:unit
         name: Run tests
-        if: ${{ matrix.type == 'unit' }}
+        if: ${{ runner.os == 'Linux' && matrix.type == 'unit' }}
 
       - name: Install integration test dependencies
         id: minikube