chore: enable drone testing

Signed-off-by: Bo-Yi Wu <[email protected]>

Author: appleboy

.drone.yml

@@ -0,0 +1,38 @@
+---
+kind: pipeline
+name: testing
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: lint
+  image: golangci/golangci-lint:v1.41.1
+  commands:
+  - golangci-lint run -v
+  volumes:
+  - name: gopath
+    path: /go
+
+- name: test
+  image: golang:1.16
+  commands:
+  - go test -v -covermode=atomic -coverprofile=coverage.out ./...
+  volumes:
+  - name: gopath
+    path: /go
+
+- name: codecov
+  image: robertstettner/drone-codecov
+  settings:
+    token:
+      from_secret: codecov_token
+
+services:
+- name: nats
+  image: nats
+
+volumes:
+- name: gopath
+  temp: {}