add coverage badge, update readme

.github/workflows/e2e-tests.yml

@@ -57,4 +57,31 @@ jobs:
       - name: run tests
         run: |
           go test -v -count=1 -cover -coverpkg=./... -coverprofile=profile.cov --tags e2e ./...
-          go tool cover -func profile.cov
+          go tool cover -func=profile.cov
+          go tool cover -func=profile.cov -o=coverage.out
+
+      - name: coverage badge
+        uses: tj-actions/coverage-badge-go@v2
+        with:
+          filename: coverage.out
+
+      - name: verify changed files
+        uses: tj-actions/verify-changed-files@v16
+        id: verify-changed-files
+        with:
+          files: README.md
+
+      - name: commit badge
+        if: steps.verify-changed-files.outputs.files_changed == 'true'
+        run: |
+          git config --local user.email "[email protected]"
+          git config --local user.name "GitHub Action"
+          git add README.md
+          git commit -m "chore: update coverage badge"
+
+      - name: push badge
+        if: steps.verify-changed-files.outputs.files_changed == 'true'
+        uses: ad-m/github-push-action@master
+        with:
+          github_token: ${{ github.token }}
+          branch: ${{ github.head_ref }}

Makefile

@@ -50,8 +50,7 @@ test-nginx:
 
 .PHONY: unittests
 unittests:
-	go test ./... -v -count=1 -cover -coverpkg=./... -coverprofile=profile.cov ./...
-	go tool cover -func profile.cov
+	go test -v -count=1 ./...
 
 .PHONY: cover
 cover:

README.md

@@ -1,5 +1,7 @@
 ## Vidi
 
+[![Coverage](https://img.shields.io/badge/Coverage-50.0%25-brightgreen)](https://github.com/tj-actions/coverage-badge-go/actions/workflows/test.yml)
+
 WIP
 
 This is a final project for Yandex Practicum's Go Course.
@@ -30,6 +32,17 @@ make docker-dev
 make docker-dev-clean
 ```
 
+### Tests
+
+```bash
+# run unit tests
+make unittests
+
+# run unit and end2end tests
+# docker compose project should be stopped (it will be ran by the command)
+make test-all
+```
+
 ### Happy Path
 
 User interaction flow is described [here](./docs/happy_path.md).