diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
deleted file mode 100644
index d2af809f..00000000
--- a/src/main/resources/application.properties
+++ /dev/null
@@ -1 +0,0 @@
-spring.application.name=space-spring
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
new file mode 100644
index 00000000..589b34bb
--- /dev/null
+++ b/src/main/resources/application.yml
@@ -0,0 +1,3 @@
+spring:
+    application:
+        name: space-spring
\ No newline at end of file
diff --git a/src/test/java/space/space_spring/SimpleFailTest.java b/src/test/java/space/space_spring/SimpleFailTest.java
new file mode 100644
index 00000000..5eaa805d
--- /dev/null
+++ b/src/test/java/space/space_spring/SimpleFailTest.java
@@ -0,0 +1,13 @@
+package space.space_spring;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class SimpleFailTest {
+    @Test
+    void testFailure() {
+        // 이 테스트는 항상 실패합니다.
+        assertEquals(1, 0, "1은 0과 같지 않습니다.");
+    }
+}
diff --git a/src/test/java/space/space_spring/SpaceSpringApplicationTests.java b/src/test/java/space/space_spring/SpaceSpringApplicationTests.java
index dd5c1070..08236b49 100644
--- a/src/test/java/space/space_spring/SpaceSpringApplicationTests.java
+++ b/src/test/java/space/space_spring/SpaceSpringApplicationTests.java
@@ -8,6 +8,8 @@ class SpaceSpringApplicationTests {
 
 	@Test
 	void contextLoads() {
+
 	}
 
+
 }