created test FollowerServiceTest.java

Author: sergeycherkasovv

src/test/java/telegram/bot/services/basicStatisticService/FollowerServiceTest.java

@@ -0,0 +1,38 @@
+package telegram.bot.services.basicStatisticService;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import telegram.bot.util.FileReaderForTest;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class FollowerServiceTest {
+    private FollowerService service;
+    private String directory;
+
+    @BeforeEach
+    void setUp() {
+        service = new FollowerService();
+        directory = "src/test/resources/fixtures/follower/";
+    }
+
+    @Test
+    void create() throws Exception{
+
+        var file = FileReaderForTest.readJsonNodeFromFile(directory + "create.json");
+        var follower = service.create(file);
+
+        assertEquals(10, follower.getFollowers());
+        assertEquals(5, follower.getFollowing());
+    }
+
+    @Test
+    void createZeroCounts() throws Exception {
+
+        var file = FileReaderForTest.readJsonNodeFromFile(directory + "zeroCounts.json");
+        var follower = service.create(file);
+
+        assertEquals(0, follower.getFollowers());
+        assertEquals(0, follower.getFollowing());
+    }
+}

src/test/resources/fixtures/follower/create.json

@@ -0,0 +1,8 @@
+{
+  "followers": {
+    "totalCount": 10
+  },
+  "following": {
+    "totalCount": 5
+  }
+}

src/test/resources/fixtures/follower/zeroCounts.json

@@ -0,0 +1,3 @@
+{
+
+}