diff --git a/dms-application/src/test/kotlin/team/aliens/dms/domain/student/usecase/ResetStudentPasswordUseCaseTests.kt b/dms-application/src/test/kotlin/team/aliens/dms/domain/student/usecase/ResetStudentPasswordUseCaseTests.kt
index ef6c4aa29..fb02da3a9 100644
--- a/dms-application/src/test/kotlin/team/aliens/dms/domain/student/usecase/ResetStudentPasswordUseCaseTests.kt
+++ b/dms-application/src/test/kotlin/team/aliens/dms/domain/student/usecase/ResetStudentPasswordUseCaseTests.kt
@@ -179,6 +179,9 @@ class ResetStudentPasswordUseCaseTests {
         given(queryUserPort.queryUserByAccountId(requestStub.accountId))
             .willReturn(userStub)
 
+        given(queryStudentPort.queryStudentById(studentStub.id))
+            .willReturn(studentStub)
+
         given(checkUserAuthority.execute(userStub.id))
             .willReturn(Authority.MANAGER)
 
diff --git a/dms-application/src/test/kotlin/team/aliens/dms/domain/student/usecase/SignUpUseCaseTests.kt b/dms-application/src/test/kotlin/team/aliens/dms/domain/student/usecase/SignUpUseCaseTests.kt
index 9250e5289..3cbb58bff 100644
--- a/dms-application/src/test/kotlin/team/aliens/dms/domain/student/usecase/SignUpUseCaseTests.kt
+++ b/dms-application/src/test/kotlin/team/aliens/dms/domain/student/usecase/SignUpUseCaseTests.kt
@@ -224,6 +224,9 @@ class SignUpUseCaseTests {
         given(querySchoolPort.querySchoolByCode(code))
             .willReturn(schoolStub)
 
+        given(queryAuthCodePort.queryAuthCodeByEmail(email))
+            .willReturn(authCodeStub)
+
         given(queryUserPort.existsUserByEmail(email))
             .willReturn(true)
 
diff --git a/dms-domain/src/main/kotlin/team/aliens/dms/domain/auth/model/AuthCode.kt b/dms-domain/src/main/kotlin/team/aliens/dms/domain/auth/model/AuthCode.kt
index 6b9632fcf..85e749c48 100644
--- a/dms-domain/src/main/kotlin/team/aliens/dms/domain/auth/model/AuthCode.kt
+++ b/dms-domain/src/main/kotlin/team/aliens/dms/domain/auth/model/AuthCode.kt
@@ -28,7 +28,7 @@ data class AuthCode(
     }
 
     fun validateAuthCode(code: String) {
-        if (this.code == code) {
+        if (this.code != code) {
             throw AuthCodeMismatchException
         }
     }