add travis CI

.travis.yml

@@ -0,0 +1,24 @@
+language: go
+
+go:
+ - "1.16"
+ - "1.17"
+ - "1.18"
+ - master
+
+services:
+ - docker
+
+before_install:
+ - go get github.com/mattn/goveralls
+ - docker pull redis:5.0.14-alpine
+ - docker run --name unittest-redis -d redis
+ - docker ps -a
+
+script:
+ - go test -v -race -covermode=atomic -coverprofile=coverage.out ./...
+
+after_success:
+ - $GOPATH/bin/goveralls -coverprofile=coverage.out -service=travis-ci # upload to `coveralls`
+ - bash <(curl -s https://codecov.io/bash) # upload to `codecov`
+ - docker rm -f unittest-redis