feat: added new tests and coverage report

MyINPulse-back/build.gradle

@@ -2,6 +2,7 @@ plugins {
     id 'java'
     id 'org.springframework.boot' version '3.4.2'
     id 'io.spring.dependency-management' version '1.1.7'
+    id 'jacoco'
 }
 
 group = 'enseirb'
@@ -36,3 +37,22 @@ dependencies {
 tasks.named('test') {
     useJUnitPlatform()
 }
+
+
+test {
+    finalizedBy jacocoTestReport // report is always generated after tests run
+}
+jacocoTestReport {
+    dependsOn test // tests are required to run before generating the report
+    reports {
+        xml.required = false
+        csv.required = false
+        html.outputLocation = layout.buildDirectory.dir('jacocoHtml')
+    }
+}
+
+
+jacoco {
+    toolVersion = "0.8.12"
+    reportsDirectory = layout.buildDirectory.dir('customJacocoReportDir')
+}