Update .travis.yml

Author: hoc081098

.travis.yml

@@ -1,10 +1,18 @@
 language: dart
-os:
-  - linux
-sudo: false
+dart:
+  - stable
+  - dev
 script:
+  - dartanalyzer --fatal-infos --fatal-warnings ./lib ./test
+  - dartfmt -n ./lib --set-exit-if-changed
   - pub get
-  - pub run test test/rx_redux_test.dart
+  - pub global activate coverage
+  - pub run test/rx_redux_test.dart
+  - dart --disable-service-auth-codes --enable-vm-service=8111 --pause-isolates-on-exit test/rx_redux_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
+    - $HOME/.pub-cache