Add Test for get follow of article

src/test/kotlin/feature/FollowSteps.kt

@@ -0,0 +1,21 @@
+package feature
+
+import fr.dcproject.entity.ArticleRef
+import fr.dcproject.entity.Follow
+import fr.dcproject.utils.toUUID
+import io.cucumber.java8.En
+import org.koin.test.KoinTest
+import org.koin.test.get
+import fr.dcproject.repository.Citizen as CitizenRepository
+import fr.dcproject.repository.FollowArticle as FollowArticleRepository
+
+class FollowSteps : En, KoinTest {
+    init {
+        Given("The citizen {word} {word} follow article {string}") { firstName: String, lastName: String, articleId: String ->
+            val username = "$firstName-$lastName".toLowerCase()
+            val citizen = get<CitizenRepository>().findByUsername(username) ?: error("Citizen not exist")
+            val follow = Follow(createdBy = citizen, target = ArticleRef(articleId.toUUID()))
+            get<FollowArticleRepository>().follow(follow)
+        }
+    }
+}