Extend ci:

    1. First install dependencies;
    2. Surpport abosulate import.

.travis.yml

@@ -21,9 +21,8 @@ before_install:
   -  docker pull paddlepaddle/paddle:latest
 script:
   -  .travis/precommit.sh
-  -  docker run -i --rm -v "$PWD:/py_unittest" paddlepaddle/paddle:latest /bin/bash -c
-     "cd /py_unittest && find . -name 'tests' -type d -print0 | xargs -0 -I{} -n1 bash -c 'cd {};
-     python -m unittest discover -v'"
+  -  docker run -i --rm -v "$PWD:/py_unittest" paddlepaddle/paddle:latest /bin/bash -c 
+    'cd /py_unittest; sh .travis/unittest.sh'
 
 notifications:
   email:

.travis/unittest.sh

+#!/bin/bash
+
+abort(){
+    echo "Run unittest failed" 1>&2
+    echo "Please check your code" 1>&2
+    exit 1
+}
+
+unittest(){
+    cd $1 > /dev/null
+    if [ -f "requirements.txt" ]; then
+        pip install -r requirements.txt
+    fi
+    if [ $? != 0 ]; then
+        exit 1
+    fi
+    find . -name 'tests' -type d -print0 | \
+        xargs -0 -I{} -n1 bash -c \
+        'python -m unittest discover -v -s {}'
+    cd - > /dev/null
+}
+
+trap 'abort' 0
+set -e
+
+for proj in */ ; do
+    if [ -d $proj ]; then
+        unittest $proj
+        if [ $? != 0 ]; then
+            exit 1
+        fi
+    fi
+done
+
+trap : 0