Allow writing Dapr logs to file in e2e test shell script (#457)

Enhance test script

Signed-off-by: Shubham Sharma <[email protected]>

Author: shubham1172

scripts/test-e2e-common.sh

@@ -11,22 +11,38 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# Usage: ./scripts/test-e2e-common.sh [testIdentifier] [--debug]
+# testIdentifier: The test identifier to run. If not specified, all tests will be run. Possible values: "client" and "server".
+# --debug: If passed, Dapr logs will be output to a file.
+# Flag should always be the last argument.
+
 TEST_DAPR_HTTP_PORT=3500
 TEST_DAPR_GRPC_PORT=50000
 TEST_SERVER_HTTP_PORT=3501
 TEST_SERVER_GRPC_PORT=50001
 
+GRPC_OUTPUT_FILE="/dev/null"
+HTTP_OUTPUT_FILE="/dev/null"
+# If --debug is passed, output Dapr logs to a file.
+if [[ "$@" =~ "--debug" ]]; then
+  GRPC_OUTPUT_FILE="dapr-grpc.log"
+  HTTP_OUTPUT_FILE="dapr-http.log"
+fi
+
 testIdentifier=$1
-if [ -z "$testIdentifier" ]; then
-  $testIdentifier="*"
+if [ -z "$testIdentifier" ] || [[ "$testIdentifier" =~ "--debug" ]]; then
+  testIdentifier="*"
 fi
 testMatchPattern="test/e2e/common/$testIdentifier.*.test.ts"
 
+echo "[SCRIPT] Running tests matching pattern: $testMatchPattern"
+echo "[SCRIPT] Outputting Dapr logs to $GRPC_OUTPUT_FILE (gRPC) and $HTTP_OUTPUT_FILE (HTTP)"
+
 # Stop on first error in execution
 set -e
 
 stop_dapr() {
-  echo "Stopping Dapr instances..."
+  echo "[SCRIPT] Stopping Dapr instances..."
   dapr stop --app-id test-suite-grpc
   dapr stop --app-id test-suite-http
 }
@@ -35,17 +51,17 @@ trap stop_dapr ERR
 
 npm run prebuild
 
-echo "Starting Dapr instances..."
+echo "[SCRIPT] Starting Dapr instances..."
 
 # Run Dapr with gRPC
 dapr run --app-id test-suite-grpc --app-protocol grpc --app-port $TEST_SERVER_GRPC_PORT\
- --dapr-grpc-port $TEST_DAPR_GRPC_PORT --components-path ./test/components/common > /dev/null 2>&1 &
+ --dapr-grpc-port $TEST_DAPR_GRPC_PORT --components-path ./test/components/common > $GRPC_OUTPUT_FILE 2>&1 &
 
 # Run Dapr with HTTP
 dapr run --app-id test-suite-http --app-protocol http --app-port $TEST_SERVER_HTTP_PORT\
- --dapr-http-port $TEST_DAPR_HTTP_PORT --components-path ./test/components/common > /dev/null 2>&1 &
+ --dapr-http-port $TEST_DAPR_HTTP_PORT --components-path ./test/components/common > $HTTP_OUTPUT_FILE 2>&1 &
 
-echo "Starting tests..."
+echo "[SCRIPT] Starting tests..."
 
 # Run tests 
 npm run test:e2e "$testMatchPattern"