add .travis.yml

Author: hoc081098

.travis.yml

@@ -0,0 +1,18 @@
+language: dart
+dart:
+  - stable
+  - dev
+script:
+  - dartanalyzer --fatal-infos --fatal-warnings ./lib ./test
+  - dartfmt -n ./lib --set-exit-if-changed
+  - pub get
+  - pub global activate coverage
+  - pub run test/rx_storage_test.dart
+  - dart --disable-service-auth-codes --enable-vm-service=8111 --pause-isolates-on-exit test/rx_storage_test.dart &
+  - nohup pub global run coverage:collect_coverage --port=8111 --out=coverage.json --wait-paused --resume-isolates
+  - pub global run coverage:format_coverage --lcov --in=coverage.json --out=lcov.info --packages=.packages --report-on=lib
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
+cache:
+  directories:
+    - $HOME/.pub-cache