ci: add code coverage as part of CI (#705)

.gitignore

@@ -323,3 +323,6 @@ __pycache__/
 
 # Go tools
 .tools/
+
+# cover profile
+coverage.txt

.pipelines/unit-tests-template.yml

@@ -12,6 +12,10 @@ jobs:
         displayName: Build
       - script: make unit-test
         displayName: Run unit tests
+      - script: bash <(curl -s https://codecov.io/bash)
+        displayName: Upload coverage to codecov
+        env:
+          CODECOV_TOKEN: $(CODECOV_TOKEN)
       - script: make lint
         displayName: Run lint
       - script: make helm-lint

Makefile

@@ -169,7 +169,7 @@ e2e:
 
 .PHONY: unit-test
 unit-test:
-	GOOS=$(TEST_GOOS) go test -race -count=1 $(shell go list ./... | grep -v /test/e2e) -v
+	GOOS=$(TEST_GOOS) CGO_ENABLED=1 go test -race -coverprofile=coverage.txt -covermode=atomic -count=1 $(shell go list ./... | grep -v /test/e2e) -v
 
 .PHONY: validate-version
 validate-version: validate-version-NMI validate-version-MIC validate-version-IDENTITY_VALIDATOR validate-version-DEMO

README.md

@@ -1,6 +1,7 @@
 # AAD Pod Identity
 
 [![Build Status](https://dev.azure.com/azure/aad-pod-identity/_apis/build/status/aad-pod-identity-nightly?branchName=master)](https://dev.azure.com/azure/aad-pod-identity/_build/latest?definitionId=77&branchName=master)
+[![codecov](https://codecov.io/gh/Azure/aad-pod-identity/branch/master/graph/badge.svg)](https://codecov.io/gh/Azure/aad-pod-identity)
 [![GoDoc](https://godoc.org/github.com/Azure/aad-pod-identity?status.svg)](https://godoc.org/github.com/Azure/aad-pod-identity)
 [![Go Report Card](https://goreportcard.com/badge/github.com/Azure/aad-pod-identity)](https://goreportcard.com/report/github.com/Azure/aad-pod-identity)
 

codecov.yml

@@ -0,0 +1,32 @@
+codecov:
+  notify:
+    require_ci_to_pass: no
+
+coverage:
+  precision: 2
+  round: down
+  range: "50...100"
+  status:
+    project:
+      default:
+        threshold: 0.5
+    patch:
+      default:
+        threshold: 0.5
+    changes: no
+
+parsers:
+  gcov:
+    branch_detection:
+      conditional: yes
+      loop: yes
+      method: no
+      macro: no
+
+comment:
+  layout: "header, diff"
+  behavior: default
+  require_changes: no
+
+ignore:
+  - "test/**/*.go"