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| 1 | +package com.gitranker.api.domain.auth.service; |
| 2 | + |
| 3 | +import com.gitranker.api.domain.auth.RefreshToken; |
| 4 | +import com.gitranker.api.domain.auth.RefreshTokenRepository; |
| 5 | +import com.gitranker.api.domain.user.Role; |
| 6 | +import com.gitranker.api.domain.user.User; |
| 7 | +import com.gitranker.api.global.auth.AuthCookieManager; |
| 8 | +import com.gitranker.api.global.auth.jwt.JwtProvider; |
| 9 | +import com.gitranker.api.global.error.ErrorType; |
| 10 | +import com.gitranker.api.global.error.exception.BusinessException; |
| 11 | +import jakarta.servlet.http.HttpServletRequest; |
| 12 | +import jakarta.servlet.http.HttpServletResponse; |
| 13 | +import jakarta.servlet.http.HttpSession; |
| 14 | +import org.junit.jupiter.api.DisplayName; |
| 15 | +import org.junit.jupiter.api.Test; |
| 16 | +import org.junit.jupiter.api.extension.ExtendWith; |
| 17 | +import org.mockito.InjectMocks; |
| 18 | +import org.mockito.Mock; |
| 19 | +import org.mockito.junit.jupiter.MockitoExtension; |
| 20 | + |
| 21 | +import java.time.LocalDateTime; |
| 22 | +import java.util.Optional; |
| 23 | + |
| 24 | +import static com.gitranker.api.support.TestFixtures.refreshToken; |
| 25 | +import static com.gitranker.api.support.TestFixtures.savedUser; |
| 26 | +import static org.assertj.core.api.Assertions.assertThat; |
| 27 | +import static org.assertj.core.api.Assertions.assertThatThrownBy; |
| 28 | +import static org.mockito.Mockito.mock; |
| 29 | +import static org.mockito.Mockito.never; |
| 30 | +import static org.mockito.Mockito.verify; |
| 31 | +import static org.mockito.Mockito.when; |
| 32 | + |
| 33 | +@ExtendWith(MockitoExtension.class) |
| 34 | +class AuthServiceTest { |
| 35 | + |
| 36 | + @InjectMocks |
| 37 | + private AuthService authService; |
| 38 | + |
| 39 | + @Mock |
| 40 | + private RefreshTokenRepository refreshTokenRepository; |
| 41 | + @Mock |
| 42 | + private RefreshTokenService refreshTokenService; |
| 43 | + @Mock |
| 44 | + private JwtProvider jwtProvider; |
| 45 | + @Mock |
| 46 | + private AuthCookieManager authCookieManager; |
| 47 | + |
| 48 | + @Test |
| 49 | + @DisplayName("유효한 refresh token이면 새 access/refresh token 쿠키를 발급한다") |
| 50 | + void refreshesAccessTokenForValidRefreshToken() { |
| 51 | + User user = savedUser(1L, "alice"); |
| 52 | + RefreshToken refreshToken = refreshToken(user, "valid-token", validExpiry()); |
| 53 | + HttpServletResponse response = mock(HttpServletResponse.class); |
| 54 | + |
| 55 | + when(refreshTokenRepository.findByToken("valid-token")).thenReturn(Optional.of(refreshToken)); |
| 56 | + when(jwtProvider.createAccessToken("alice", Role.USER)).thenReturn("new-access-token"); |
| 57 | + when(refreshTokenService.issueRefreshToken(user)).thenReturn("new-refresh-token"); |
| 58 | + |
| 59 | + authService.refreshAccessToken("valid-token", response); |
| 60 | + |
| 61 | + verify(authCookieManager).addAccessTokenCookie(response, "new-access-token"); |
| 62 | + verify(authCookieManager).addRefreshTokenCookie(response, "new-refresh-token"); |
| 63 | + } |
| 64 | + |
| 65 | + @Test |
| 66 | + @DisplayName("존재하지 않는 refresh token이면 INVALID_REFRESH_TOKEN 예외가 발생한다") |
| 67 | + void throwsWhenRefreshTokenDoesNotExist() { |
| 68 | + when(refreshTokenRepository.findByToken("missing")).thenReturn(Optional.empty()); |
| 69 | + |
| 70 | + assertThatThrownBy(() -> authService.refreshAccessToken("missing", mock(HttpServletResponse.class))) |
| 71 | + .isInstanceOf(BusinessException.class) |
| 72 | + .extracting(exception -> ((BusinessException) exception).getErrorType()) |
| 73 | + .isEqualTo(ErrorType.INVALID_REFRESH_TOKEN); |
| 74 | + } |
| 75 | + |
| 76 | + @Test |
| 77 | + @DisplayName("만료된 refresh token이면 삭제 후 EXPIRED_REFRESH_TOKEN 예외가 발생한다") |
| 78 | + void deletesExpiredRefreshTokenBeforeThrowing() { |
| 79 | + User user = savedUser(1L, "alice"); |
| 80 | + RefreshToken expiredToken = refreshToken(user, "expired-token", expiredAt()); |
| 81 | + |
| 82 | + when(refreshTokenRepository.findByToken("expired-token")).thenReturn(Optional.of(expiredToken)); |
| 83 | + |
| 84 | + assertThatThrownBy(() -> authService.refreshAccessToken("expired-token", mock(HttpServletResponse.class))) |
| 85 | + .isInstanceOf(BusinessException.class) |
| 86 | + .extracting(exception -> ((BusinessException) exception).getErrorType()) |
| 87 | + .isEqualTo(ErrorType.EXPIRED_REFRESH_TOKEN); |
| 88 | + |
| 89 | + verify(refreshTokenRepository).delete(expiredToken); |
| 90 | + verify(authCookieManager, never()).addAccessTokenCookie(org.mockito.ArgumentMatchers.any(), org.mockito.ArgumentMatchers.anyString()); |
| 91 | + } |
| 92 | + |
| 93 | + @Test |
| 94 | + @DisplayName("본인 token으로 logout하면 token을 삭제하고 쿠키와 세션을 정리한다") |
| 95 | + void logsOutAndClearsSessionForMatchingUser() { |
| 96 | + User user = savedUser(1L, "alice"); |
| 97 | + RefreshToken refreshToken = refreshToken(user, "valid-token", validExpiry()); |
| 98 | + HttpServletRequest request = mock(HttpServletRequest.class); |
| 99 | + HttpServletResponse response = mock(HttpServletResponse.class); |
| 100 | + HttpSession session = mock(HttpSession.class); |
| 101 | + |
| 102 | + when(refreshTokenRepository.findByToken("valid-token")).thenReturn(Optional.of(refreshToken)); |
| 103 | + when(request.getSession(false)).thenReturn(session); |
| 104 | + |
| 105 | + authService.logout(user, "valid-token", request, response); |
| 106 | + |
| 107 | + verify(refreshTokenRepository).deleteByToken("valid-token"); |
| 108 | + verify(authCookieManager).clearAccessTokenCookie(response); |
| 109 | + verify(authCookieManager).clearRefreshTokenCookie(response); |
| 110 | + verify(session).invalidate(); |
| 111 | + } |
| 112 | + |
| 113 | + @Test |
| 114 | + @DisplayName("다른 사용자의 token으로 logout하면 FORBIDDEN 예외가 발생한다") |
| 115 | + void throwsForbiddenForOtherUsersToken() { |
| 116 | + User currentUser = savedUser(1L, "alice"); |
| 117 | + User otherUser = savedUser(2L, "bob"); |
| 118 | + RefreshToken refreshToken = refreshToken(otherUser, "foreign-token", validExpiry()); |
| 119 | + |
| 120 | + when(refreshTokenRepository.findByToken("foreign-token")).thenReturn(Optional.of(refreshToken)); |
| 121 | + |
| 122 | + assertThatThrownBy(() -> authService.logout(currentUser, "foreign-token", mock(HttpServletRequest.class), mock(HttpServletResponse.class))) |
| 123 | + .isInstanceOf(BusinessException.class) |
| 124 | + .extracting(exception -> ((BusinessException) exception).getErrorType()) |
| 125 | + .isEqualTo(ErrorType.FORBIDDEN); |
| 126 | + } |
| 127 | + |
| 128 | + @Test |
| 129 | + @DisplayName("logoutAll은 사용자의 모든 token과 쿠키를 정리한다") |
| 130 | + void logoutAllClearsAllTokensAndCookies() { |
| 131 | + User user = savedUser(1L, "alice"); |
| 132 | + HttpServletRequest request = mock(HttpServletRequest.class); |
| 133 | + HttpServletResponse response = mock(HttpServletResponse.class); |
| 134 | + HttpSession session = mock(HttpSession.class); |
| 135 | + |
| 136 | + when(request.getSession(false)).thenReturn(session); |
| 137 | + |
| 138 | + authService.logoutAll(user, request, response); |
| 139 | + |
| 140 | + verify(refreshTokenRepository).deleteAllByUser(user); |
| 141 | + verify(authCookieManager).clearAccessTokenCookie(response); |
| 142 | + verify(authCookieManager).clearRefreshTokenCookie(response); |
| 143 | + verify(session).invalidate(); |
| 144 | + } |
| 145 | + |
| 146 | + private LocalDateTime validExpiry() { |
| 147 | + return LocalDateTime.now().plusDays(1); |
| 148 | + } |
| 149 | + |
| 150 | + private LocalDateTime expiredAt() { |
| 151 | + return LocalDateTime.now().minusDays(1); |
| 152 | + } |
| 153 | +} |
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