ci: add code coverage as part of CI (Azure#360)

.gitignore

@@ -347,3 +347,6 @@ manifest_staging/charts/csi-secrets-store-provider-azure/charts/
 # website
 website/public
 website/resources
+
+# cover profile
+coverage.txt

Makefile

@@ -20,7 +20,7 @@ BUILD_VERSION_VAR := $(REPO_PATH)/pkg/version.BuildVersion
 VCS_VAR := $(REPO_PATH)/pkg/version.Vcs
 LDFLAGS ?= "-X $(BUILD_DATE_VAR)=$(BUILD_DATE) -X $(BUILD_VERSION_VAR)=$(IMAGE_VERSION) -X $(VCS_VAR)=$(BUILD_COMMIT)"
 
-GO_FILES=$(shell go list ./...)
+GO_FILES=$(shell go list ./... | grep -v /test/e2e)
 ALL_DOCS := $(shell find . -name '*.md' -type f | sort)
 TOOLS_MOD_DIR := ./tools
 TOOLS_DIR := $(abspath ./.tools)
@@ -66,7 +66,7 @@ lint: $(TOOLS_DIR)/golangci-lint $(TOOLS_DIR)/misspell
 
 .PHONY: unit-test
 unit-test:
-	go test $(GO_FILES) -v
+	CGO_ENABLED=1 go test -race -coverprofile=coverage.txt -covermode=atomic $(GO_FILES) -v
 
 .PHONY: build
 build:

README.md

@@ -1,6 +1,7 @@
 # Azure Key Vault Provider for Secrets Store CSI Driver
 
 [![Build Status](https://dev.azure.com/azure/secrets-store-csi-driver-provider-azure/_apis/build/status/secrets-store-csi-driver-provider-azure-ci?branchName=master)](https://dev.azure.com/azure/secrets-store-csi-driver-provider-azure/_build/latest?definitionId=67&branchName=master)
+[![codecov](https://codecov.io/gh/Azure/secrets-store-csi-driver-provider-azure/branch/master/graph/badge.svg)](https://codecov.io/gh/Azure/secrets-store-csi-driver-provider-azure)
 ![GitHub release (latest by date)](https://img.shields.io/github/v/release/Azure/secrets-store-csi-driver-provider-azure)
 [![Go Report Card](https://goreportcard.com/badge/Azure/secrets-store-csi-driver-provider-azure)](https://goreportcard.com/report/Azure/secrets-store-csi-driver-provider-azure)
 ![GitHub go.mod Go version](https://img.shields.io/github/go-mod/go-version/Azure/secrets-store-csi-driver-provider-azure)

azure-pipelines.yml

@@ -31,6 +31,10 @@ 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 helm-lint
       displayName: Run helm lint
     - template: .pipelines/templates/scan-images.yaml

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"