diff --git a/.travis.yml b/.travis.yml
index 25cff96..bbaa0c0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@ env:
   global:
     - HOGE=hoge
     - FUGA=fuga
+    - NUM_PARENTS=$(git log --pretty=%P -n 1 HEAD | awk '{ print NF }')
 script:
-  - 'if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then bash ./travis/run_on_pull_requests; fi'
-  - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then bash ./travis/run_on_non_pull_requests; fi'
-  - echo signing test
+  - if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then bash ./travis/run_on_pull_requests; fi
+  - if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then bash ./travis/run_on_non_pull_requests; fi
diff --git a/pr5 b/pr5
new file mode 100644
index 0000000..cab7a66
--- /dev/null
+++ b/pr5
@@ -0,0 +1 @@
+pr5
diff --git a/travis/run_on_non_pull_requests b/travis/run_on_non_pull_requests
index d8dc6c4..2560ec2 100644
--- a/travis/run_on_non_pull_requests
+++ b/travis/run_on_non_pull_requests
@@ -5,3 +5,7 @@ echo "HOGE: ${HOGE}"
 echo "FUGA: ${FUGA}"
 echo "SECRET: ${SECRET}"
 echo "TRAVIS_BUILD_DIR: ${TRAVIS_BUILD_DIR}"
+echo "TRAVIS_BRANCH: ${TRAVIS_BRANCH}"
+echo "TRAVIS_PULL_REQUEST_BRANCH: ${TRAVIS_PULL_REQUEST_BRANCH}"
+echo "TRAVIS_EVENT_TYPE: ${TRAVIS_EVENT_TYPE}"
+echo "NUM_PARENTS: ${NUM_PARENTS}"
diff --git a/travis/run_on_pull_requests b/travis/run_on_pull_requests
index 1f0380e..cded618 100644
--- a/travis/run_on_pull_requests
+++ b/travis/run_on_pull_requests
@@ -5,3 +5,7 @@ echo "HOGE: ${HOGE}"
 echo "FUGA: ${FUGA}"
 echo "SECRET: ${SECRET}"
 echo "TRAVIS_BUILD_DIR: ${TRAVIS_BUILD_DIR}"
+echo "TRAVIS_BRANCH: ${TRAVIS_BRANCH}"
+echo "TRAVIS_PULL_REQUEST_BRANCH: ${TRAVIS_PULL_REQUEST_BRANCH}"
+echo "TRAVIS_EVENT_TYPE: ${TRAVIS_EVENT_TYPE}"
+echo "NUM_PARENTS: ${NUM_PARENTS}"