Add tests for wrapper-validation with insufficient wrappers

- Test min-wrapper-count greater than wrappers
- Test caswrapper-validation with insufficient wrappers

.github/workflows/integ-test-wrapper-validation.yml

@@ -54,6 +54,7 @@ jobs:
       with:
         # to allow the invalid wrapper jar present in test data
         allow-checksums: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+        min-wrapper-count: 10
 
     - name: Check outcome
       env:
@@ -98,3 +99,62 @@ jobs:
           echo "'outputs.failed-wrapper' has unexpected content: $FAILED_WRAPPERS"
           exit 1
         fi
+
+  test-validation-minimum-wrapper-count:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v4
+    - name: Initialize integ-test
+      uses: ./.github/actions/init-integ-test
+
+    - name: Run wrapper-validation-action
+      id: action-test
+      uses: ./wrapper-validation
+      with:
+        # to allow the invalid wrapper jar present in test data
+        allow-checksums: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+        min-wrapper-count: 11
+      # Expected to fail; validated below
+      continue-on-error: true
+
+    - name: Check outcome
+      env:
+        # Evaluate workflow expressions here as env variable values instead of inside shell script
+        # below to not accidentally inject code into shell script or break its syntax
+        VALIDATION_FAILED: ${{ steps.action-test.outcome == 'failure' }}
+      run: |
+        if [ "$VALIDATION_FAILED" != "true" ] ; then
+          echo "Expected validation to fail, but it didn't"
+          exit 1
+        fi
+
+  test-validation-zero-wrappers:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v4 # Checkout the repository with no wrappers
+      with:
+        sparse-checkout: |
+          .github/actions
+          dist
+          wrapper-validation
+    - name: Initialize integ-test
+      uses: ./.github/actions/init-integ-test
+
+    - name: Run wrapper-validation-action
+      id: action-test
+      uses: ./wrapper-validation
+      # Expected to fail; validated below
+      continue-on-error: true
+
+    - name: Check outcome
+      env:
+        # Evaluate workflow expressions here as env variable values instead of inside shell script
+        # below to not accidentally inject code into shell script or break its syntax
+        VALIDATION_FAILED: ${{ steps.action-test.outcome == 'failure' }}
+      run: |
+        if [ "$VALIDATION_FAILED" != "true" ] ; then
+          echo "Expected validation to fail, but it didn't"
+          exit 1
+        fi