format test codes and ensure travis fails on unformatted files

.gitignore

@@ -9,4 +9,4 @@ pegasus-client.iml
 log.txt
 rolling_log/
 .vscode/
-
+google-java-format-*

scripts/format-all.sh

@@ -9,7 +9,12 @@ SRC_FILES=(src/main/java/com/xiaomi/infra/pegasus/client/*.java
            src/main/java/com/xiaomi/infra/pegasus/rpc/*.java
            src/main/java/com/xiaomi/infra/pegasus/rpc/async/*.java
            src/main/java/com/xiaomi/infra/pegasus/operator/*.java
-           src/main/java/com/xiaomi/infra/pegasus/tools/*.java)
+           src/main/java/com/xiaomi/infra/pegasus/tools/*.java
+           src/test/java/com/xiaomi/infra/pegasus/client/*.java
+           src/test/java/com/xiaomi/infra/pegasus/metrics/*.java
+           src/test/java/com/xiaomi/infra/pegasus/rpc/async/*.java
+           src/test/java/com/xiaomi/infra/pegasus/tools/*.java
+           )
 
 if [ ! -f "${PROJECT_DIR}"/google-java-format-1.7-all-deps.jar ]; then
     wget https://github.com/google/google-java-format/releases/download/google-java-format-1.7/google-java-format-1.7-all-deps.jar

scripts/travis.sh

@@ -9,7 +9,6 @@ cd "${PROJECT_DIR}" || exit -1
 # lint all scripts, abort if there's any warning.
 function shellcheck_must_pass()
 {
-    echo "$1"
     if [[ $(shellcheck "$1") ]]; then
         echo "shellcheck $1 failed"
         shellcheck "$1"
@@ -19,6 +18,14 @@ function shellcheck_must_pass()
 shellcheck_must_pass ./scripts/format-all.sh
 shellcheck_must_pass ./scripts/travis.sh
 
+# ensure source files are well formatted
+./scripts/format-all.sh
+if [[ $(git status -s) ]]; then
+    git status -s
+    echo "please format the above files before commit"
+    exit 1
+fi
+
 # start pegasus onebox environment
 wget https://github.com/XiaoMi/pegasus/releases/download/v1.11.2/pegasus-tools-1.11.2-a186d38-ubuntu-18.04-release.tar.gz
 tar xvf pegasus-tools-1.11.2-a186d38-ubuntu-18.04-release.tar.gz