trigger test only when the test case length > 0

Signed-off-by: chensuyue <suyue.chen@intel.com>

Author: chensuyue

.github/workflows/_helm-e2e.yml

@@ -71,7 +71,7 @@ jobs:
             sort -u)
             echo $values_files
           elif [ "${{ inputs.mode }}" = "CD" ]; then
-            values_files=$(ls ${{ inputs.example }}/kubernetes/helm/*values.yaml)
+            values_files=$(ls ${{ inputs.example }}/kubernetes/helm/*values.yaml || true)
           fi
           value_files="["
           for file in ${values_files}; do
@@ -97,6 +97,7 @@ jobs:
 
   helm-test:
     needs: [get-test-case]
+    if: always() && ${{ needs.get-test-case.outputs.value_files.length > 0 }}
     strategy:
       matrix:
         value_file: ${{ fromJSON(needs.get-test-case.outputs.value_files) }}

.github/workflows/_run-docker-compose.yml

@@ -91,6 +91,7 @@ jobs:
 
   run-test:
     needs: [get-test-case]
+    if: always() && ${{ needs.get-test-case.outputs.test_cases.length > 0 }}
     strategy:
       matrix:
         test_case: ${{ fromJSON(needs.get-test-case.outputs.test_cases) }}

.github/workflows/pr-docker-compose-e2e.yml

@@ -32,10 +32,10 @@ jobs:
 
   example-test:
     needs: [get-test-matrix]
+    if: ${{ !github.event.pull_request.draft }} && ${{ needs.get-test-matrix.outputs.run_matrix.example.length > 0 }}
     strategy:
       matrix: ${{ fromJSON(needs.get-test-matrix.outputs.run_matrix) }}
       fail-fast: false
-    if: ${{ !github.event.pull_request.draft }}
     uses: ./.github/workflows/_run-docker-compose.yml
     with:
       registry: "opea"