add codecov

.github/workflows/unit_tests.yml

@@ -0,0 +1,63 @@
+name: Unit Tests
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  unit_tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+
+      - name: Run unit tests
+        run: go run build/ci.go test -coverage
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage
+          path: coverage.out
+
+  upload-coverage:
+    runs-on: ubuntu-latest
+    needs: unit_tests
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v3
+        with:
+          go-version: 1.21
+
+      # Download all coverage reports from the 'tests' job
+      - name: Download coverage reports
+        uses: actions/download-artifact@v4
+
+      - name: Set GOPATH
+        run: echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
+
+      - name: Add GOPATH/bin to PATH
+        run: echo "GOBIN=$(go env GOPATH)/bin" >> $GITHUB_ENV
+
+      - name: Install gocovmerge
+        run: go get github.com/wadey/gocovmerge && go install github.com/wadey/gocovmerge
+
+      - name: Merge coverage reports
+        run: gocovmerge $(find . -type f -name '*profile.out') > coverage.txt
+
+      - name: Check coverage report lines
+        run: wc -l coverage.txt
+        continue-on-error: true
+
+      - name: Check coverage report files
+        run: ls **/*profile.out
+        continue-on-error: true

build/ci.go

@@ -285,7 +285,7 @@ func doTest(cmdline []string) {
 		coverage = flag.Bool("coverage", false, "Whether to record code coverage")
 		verbose  = flag.Bool("v", false, "Whether to log verbosely")
 		race     = flag.Bool("race", false, "Execute the race detector")
-		short     = flag.Bool("short", false, "Pass the 'short'-flag to go test")
+		short    = flag.Bool("short", false, "Pass the 'short'-flag to go test")
 		cachedir = flag.String("cachedir", "./build/cache", "directory for caching downloads")
 	)
 	flag.CommandLine.Parse(cmdline)
@@ -314,7 +314,7 @@ func doTest(cmdline []string) {
 	// and some tests run into timeouts under load.
 	gotest.Args = append(gotest.Args, "-p", "1")
 	if *coverage {
-		gotest.Args = append(gotest.Args, "-covermode=atomic", "-cover")
+		gotest.Args = append(gotest.Args, "-covermode=atomic", "-cover", "-coverprofile=coverage.out")
 	}
 	if *verbose {
 		gotest.Args = append(gotest.Args, "-v")

codecov.yml

@@ -0,0 +1,29 @@
+coverage:
+  precision: 2
+  round: down
+  status:
+    project:
+      default:
+        target: 60%
+        threshold: 1% # allow this much decrease on project
+    patch:
+      default:
+        target: 70%
+
+comment:
+  layout: "reach,diff,flags,tree,betaprofiling"
+  behavior: default # update if exists else create new
+  require_changes: true
+
+ignore:
+  - "docs"
+  - "cmd"
+  - "tests"
+  - "swarm"
+  - "**/testdata"
+  - "lib/blocktest"
+  - "lib/cmdtest"
+  - "lib/testlog"
+  - "**/*pb*.go"
+  - "**/gen_*.go"
+  - "**/*.md"