Add conditional check for RC version in E2E test matrix generation

Author: mgascam

.github/workflows/e2e-test.yml

@@ -101,11 +101,15 @@ jobs:
             MATRIX_ENTRIES+=("{\"woocommerce\":\"$BETA_VERSION\",\"php\":\"$PHP_STABLE\",\"test_groups\":\"$TEST_GROUPS_SUBSCRIPTIONS\",\"test_branches\":\"$TEST_BRANCHES_SHOPPER\"}")
           fi
 
-          # Add rc with PHP 8.4 only
-          MATRIX_ENTRIES+=("{\"woocommerce\":\"$RC_VERSION\",\"php\":\"$PHP_LATEST\",\"test_groups\":\"$TEST_GROUPS_WCPAY\",\"test_branches\":\"$TEST_BRANCHES_MERCHANT\"}")
-          MATRIX_ENTRIES+=("{\"woocommerce\":\"$RC_VERSION\",\"php\":\"$PHP_LATEST\",\"test_groups\":\"$TEST_GROUPS_WCPAY\",\"test_branches\":\"$TEST_BRANCHES_SHOPPER\"}")
-          MATRIX_ENTRIES+=("{\"woocommerce\":\"$RC_VERSION\",\"php\":\"$PHP_LATEST\",\"test_groups\":\"$TEST_GROUPS_SUBSCRIPTIONS\",\"test_branches\":\"$TEST_BRANCHES_MERCHANT\"}")
-          MATRIX_ENTRIES+=("{\"woocommerce\":\"$RC_VERSION\",\"php\":\"$PHP_LATEST\",\"test_groups\":\"$TEST_GROUPS_SUBSCRIPTIONS\",\"test_branches\":\"$TEST_BRANCHES_SHOPPER\"}")
+          # Add rc with PHP 8.4 only (only if RC version is available)
+          if [[ -n "$RC_VERSION" && "$RC_VERSION" != "null" ]]; then
+            MATRIX_ENTRIES+=("{\"woocommerce\":\"$RC_VERSION\",\"php\":\"$PHP_LATEST\",\"test_groups\":\"$TEST_GROUPS_WCPAY\",\"test_branches\":\"$TEST_BRANCHES_MERCHANT\"}")
+            MATRIX_ENTRIES+=("{\"woocommerce\":\"$RC_VERSION\",\"php\":\"$PHP_LATEST\",\"test_groups\":\"$TEST_GROUPS_WCPAY\",\"test_branches\":\"$TEST_BRANCHES_SHOPPER\"}")
+            MATRIX_ENTRIES+=("{\"woocommerce\":\"$RC_VERSION\",\"php\":\"$PHP_LATEST\",\"test_groups\":\"$TEST_GROUPS_SUBSCRIPTIONS\",\"test_branches\":\"$TEST_BRANCHES_MERCHANT\"}")
+            MATRIX_ENTRIES+=("{\"woocommerce\":\"$RC_VERSION\",\"php\":\"$PHP_LATEST\",\"test_groups\":\"$TEST_GROUPS_SUBSCRIPTIONS\",\"test_branches\":\"$TEST_BRANCHES_SHOPPER\"}")
+          else
+            echo "No RC version available, skipping RC matrix entries" >&2
+          fi
 
           # Convert array to JSON
           MATRIX_INCLUDE=$(printf '%s\n' "${MATRIX_ENTRIES[@]}" | jq -s . -c)