Setup CI (unit tests) (#1)

* Setup CI (unit tests)

* Add build status badge to README.md file.

* Add code coverage

.github/workflows/makefile-ci.yaml

@@ -0,0 +1,34 @@
+name: Makefile CI
+on:
+  push:
+    branches:
+      - master
+      - develop
+      - feature/**
+      - ci/**
+  pull_request:
+    branches:
+      - master
+      - develop
+      - feature/**
+      - ci/**
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup JDK
+        uses: actions/setup-java@v3
+        with:
+          java-version: "20.0.1"
+          distribution: "temurin"
+          server-id: github
+          settings-path: ${{ github.workspace }}
+      - name: Unit Tests
+        run: ./gradlew test
+      - name: Code Coverage
+        uses: codecov/codecov-action@v3
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        with:
+          fail_ci_if_error: false

README.md

@@ -1,4 +1,5 @@
 # Leetcode - Java
+[![Makefile CI](https://github.com/dksifoua/leetcode/actions/workflows/makefile-ci.yaml/badge.svg)](https://github.com/dksifoua/leetcode/actions/workflows/makefile-ci.yaml)
 
 ## Types of data structures
 

build.gradle

@@ -1,5 +1,6 @@
 plugins {
     id 'java'
+    id 'jacoco'
 }
 
 group = 'io.dksifoua'
@@ -16,4 +17,29 @@ dependencies {
 
 test {
     useJUnitPlatform()
+    finalizedBy jacocoTestReport
+}
+
+jacoco {
+    toolVersion = "0.8.9"
+    reportsDirectory = layout.buildDirectory.dir("reports/jacoco")
+}
+
+jacocoTestReport {
+    dependsOn test
+
+    reports {
+        xml.required = true
+        html.required = true
+    }
+}
+
+jacocoTestCoverageVerification {
+    violationRules {
+        rule {
+            limit {
+                minimum = 0.5
+            }
+        }
+    }
 }