build: test with -race and -cover

.circleci/config.yml

@@ -1,4 +1,11 @@
-version: 2
+version: 2.1
+
+orbs:
+  codecov: codecov/[email protected]
+  moul: moul/[email protected]
+  tools: gotest/[email protected]
+
+
 jobs:
   build:
     docker:
@@ -9,15 +16,23 @@ jobs:
       GOPROXY: "https://goproxy.io"
     steps:
       - checkout
-#      - restore_cache:
-#        keys:
-#          - go-mod-v1-{{ arch }}-{{ checksum "go.sum" }}
-#          - go-mod-v1-{{ arch }}-
-      - run: go mod download
+      - restore_cache:
+          keys:
+            - go-mod-v1-{{ checksum "go.sum" }}
+            - go-mod-v1-
+      - tools/mod-download
+      - tools/mod-tidy-check
       - run: make test
-      - run: curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh -s -- v1.17.1
-      - run: PATH=$PATH:./bin make lint
-#      - save_cache:
-#        key: go-mod-v1-{{ arch }}-{{ checksum "go.sum" }}
-#          paths:
-#             - /go/pkg/mod
+      - moul/install_golangci-lint
+      - run: make lint
+      - codecov/upload:
+          file: coverage.txt
+      - save_cache:
+          key: go-mod-v1-{{ checksum "go.sum" }}
+          paths:
+            - /go/pkg/mod
+
+workflows:
+  main:
+    jobs:
+      - build

.gitignore

@@ -7,6 +7,8 @@
 [._]ss[a-gi-z]
 [._]sw[a-p]
 
+coverage.txt
+
 # osx
 .DS_Store
 

Makefile

@@ -7,5 +7,5 @@ lint:
 
 .PHONY: test
 test:
-	go test -v ./...
+	go test -race -covermode=atomic -coverpkg=all -coverprofile=coverage.txt -cover -v ./...
 	cd example && go test -v ./...

go.mod

@@ -30,5 +30,4 @@ require (
 	golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5 // indirect
 	golang.org/x/net v0.0.0-20190611141213-3f473d35a33a // indirect
 	golang.org/x/sys v0.0.0-20190610200419-93c9922d18ae // indirect
-	google.golang.org/appengine v1.4.0 // indirect
 )