try to enable integration tests for linux

.travis.yml

@@ -26,7 +26,9 @@ before_install:
   - npm config set python `which python`
   - npm install -g gulp
   - if [ $TRAVIS_OS_NAME == "linux" ]; then
-      export CXX="g++-4.9" CC="gcc-4.9";
+      export CXX="g++-4.9" CC="gcc-4.9" DISPLAY=:99.0;
+      sh -e /etc/init.d/xvfb start;
+      sleep 3;
     fi
 
 install:

test/run.sh

@@ -19,11 +19,4 @@ else
 fi
 
 # Integration Tests (currently not enabled for linux because of missing display)
-# if [[ "$OSTYPE" == "linux" ]]; then
-#   export DISPLAY=:99.0
-#   sh -e /etc/init.d/xvfb start
-#   sleep 3
-# fi
-if [[ "$OSTYPE" == "darwin"* ]]; then
-./scripts/code.sh $ROOT/extensions/vscode-api-tests/testWorkspace --extensionDevelopmentPath=$ROOT/extensions/vscode-api-tests --extensionTestsPath=$ROOT/extensions/vscode-api-tests/out
-fi
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+./scripts/code.sh $ROOT/extensions/vscode-api-tests/testWorkspace --extensionDevelopmentPath=$ROOT/extensions/vscode-api-tests --extensionTestsPath=$ROOT/extensions/vscode-api-tests/out
\ No newline at end of file