diff --git a/src/test/java/com/example/demo/DemoApplicationTests.java b/src/test/java/com/example/demo/DemoApplicationTests.java
index 2778a6a..798ae30 100644
--- a/src/test/java/com/example/demo/DemoApplicationTests.java
+++ b/src/test/java/com/example/demo/DemoApplicationTests.java
@@ -1,13 +1,83 @@
 package com.example.demo;
 
+import com.example.demo.speaker.service.MethodService;
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.beans.factory.NoSuchBeanDefinitionException;
 
 @SpringBootTest
 class DemoApplicationTests {
+	@Autowired
+	private MethodService methodService;
+	@Test
+	void testIntSum() {
+		Integer res = Integer.valueOf(methodService.Sum(2, 2, "int"));
+		Assertions.assertEquals(4, res);
+	}
+	@Test
+	void testStringSum() {
+		String res = methodService.Sum("hello, ", 2, "string");
+		Assertions.assertEquals("hello, 2", res);
+	}
+	@Test
+	void testBooleanSum() {
+		String res = methodService.Sum(true, true, "boolean");
+		Assertions.assertEquals("true", res);
+	}
 
 	@Test
-	void contextLoads() {
+	void testIntDiff() {
+		Integer res = Integer.valueOf(methodService.Ras(4, 2, "int"));
+		Assertions.assertEquals(2, res);
+	}
+	@Test
+	void testStringDiff() {
+		String res = methodService.Ras("hello2", 2, "string");
+		Assertions.assertEquals("hell", res);
+	}
+	@Test
+	void testBooleanDiff() {
+		String res = methodService.Ras(1, 2, "boolean");
+		Assertions.assertEquals(true, res);
+	}
+
+	@Test
+	void testIntMultiple() {
+		Integer res = Integer.valueOf(methodService.Pros(2, 3, "int"));
+		Assertions.assertEquals(6, res);
+	}
+	@Test
+	void testStringMultiple() {
+		String res = methodService.Pros("test", 2, "string");
+		Assertions.assertEquals("testtest", res);
+	}
+	@Test
+	void testBooleanMultiple() {
+		String res = methodService.Pros(true, 2, "boolean");
+		Assertions.assertEquals("true", res);
+	}
+
+	@Test
+	void testIntDivide() {
+		Integer res = Integer.valueOf(methodService.Del(10, 2, "int"));
+		Assertions.assertEquals(5, res);
+	}
+	@Test
+	void testStringDivide() {
+		String res = methodService.Del("test", 2, "string");
+		Assertions.assertEquals("false", res);
+	}
+	@Test
+	void testBooleanDivide() {
+		String res = methodService.Del(true, 2, "boolean");
+		Assertions.assertEquals("false", res);
+	}
+
+	@Test
+	void testErrorErrorWired() {
+		Assertions.assertThrows(NoSuchBeanDefinitionException.class, () -> methodService.Sum(1, 2, "date"));
 	}
 
 }