added travis.yml

.travis.yml

@@ -0,0 +1,28 @@
+os:
+  - linux
+  - osx
+  - windows
+language: node_js
+node_js:
+  - '10'
+  - '12'
+env:
+  - CXX=g++-6
+addons:
+  apt:
+    sources:
+      - ubuntu-toolchain-r-test
+    packages:
+      - g++-6
+before_install:
+  - 'if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then CC=gcc-6; fi'
+  - 'if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then CC=g++-6; fi'
+before_script:
+  - export NPMVERSION=$(echo "$($(which npm) -v)"|cut -c1)
+  - 'if [[ $NPMVERSION == 5 ]]; then npm install -g npm; fi'
+  - npm -v
+script:
+  - 'npm run test:package'
+  - 'npm run test:unit'
+  - 'export DEBUG=testing:*'
+  - 'npm run test:integration'