bat test added and CI Pipeline control improved

.github/workflows/CIPipeline.yml

@@ -0,0 +1,48 @@
+name: CI Pipeline
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  shellcheck:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Run ShellCheck on linkChecker.sh
+      run: |
+        shellcheck -s bash ./linkChecker.sh
+      continue-on-error: false
+
+    - name: Run ShellCheck on Bats test file
+      run: |
+        shellcheck -s bash ./tests/linkchecker.bats
+      continue-on-error: false
+
+    - name: Run ShellCheck on test_helper.bash
+      run: |
+        shellcheck -s bash ./tests/test_helper.bash
+      continue-on-error: false
+
+  bats-test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Install Bats
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y bats
+
+    - name: Run Bats Tests
+      run: bats tests/
+      continue-on-error: false