Update integration test script (#13)

Signed-off-by: Joe Hu <[email protected]>
Co-authored-by: Joe Hu <[email protected]>

README.md

@@ -36,6 +36,16 @@ make -j unit
 make -j test
 ```
 
+#### To run one integration test:
+```text
+TEST_PATTERN=<test-function-or-file> make -j test
+```
+e.g.,
+```text
+TEST_PATTERN=test_sanity make -j test
+TEST_PATTERN=test_rdb.py make -j test
+```
+
 ## Load the Module
 To test the module with a Valkey, you can load the module using any of the following ways:
 
@@ -83,4 +93,5 @@ JSON.STRAPPEND
 JSON.STRLEN
 JSON.TOGGLE
 JSON.TYPE
-```
+```
+

tst/integration/run.sh

@@ -8,12 +8,18 @@ pkill -9 -f "valkey-server.*:" || true
 pkill -9 -f Valgrind || true
 pkill -9 -f "valkey-benchmark" || true
 
+# If environment variable SERVER_VERSION is not set, default to "unstable"
+if [ -z "$SERVER_VERSION" ]; then
+    echo "WARNING: SERVER_VERSION environment variable is not set. Defaulting to \"unstable\"."
+    export SERVER_VERSION="unstable"
+fi
+
 # cd to the current directory of the script
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 cd "${DIR}"
 
 export MODULE_PATH=$2/build/src/libjson.so 
-echo "Running integration tests against Valkey version: $SERVER_VERSION"
+echo "Running integration tests against Valkey version $SERVER_VERSION"
 
 if [[ ! -z "${TEST_PATTERN}" ]] ; then
     export TEST_PATTERN="-k ${TEST_PATTERN}"
@@ -31,4 +37,5 @@ if [[ $1 == "test" ]] ; then
 else
     echo "Unknown target: $1"
     exit 1
-fi
+fi
+