Add unit tests CI checks

Author: amuraru

.github/workflows/ci.yaml

@@ -0,0 +1,83 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  GO_VERSION: '1.25'
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+          cache: true
+
+      - name: Download dependencies
+        run: go mod download
+
+      - name: Verify dependencies
+        run: go mod verify
+
+      - name: Run tests
+        run: go test -v -race -coverprofile=coverage.out -covermode=atomic ./...
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          files: ./coverage.out
+          flags: unittests
+          fail_ci_if_error: false
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+          cache: true
+
+      - name: Run golangci-lint
+        uses: golangci/golangci-lint-action@v8
+        with:
+          version: latest
+          args: --timeout=5m
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+          cache: true
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Build binary
+        run: go build -v -o kminion .
+

.github/workflows/e2e-tests.yaml

@@ -2,9 +2,9 @@ name: E2E Tests
 
 on:
   push:
-    branches: ["master", "main"]
+    branches: ["main"]
   pull_request:
-    branches: ["master", "main"]
+    branches: ["main"]
   workflow_dispatch:
 
 jobs: