[5기 최정은] Shorten-URL 과제 제출합니다.

src/test/java/com/springboot/springbooturlshortner/service/UrlServiceTest.java

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+package com.springboot.springbooturlshortner.service;
+
+import com.springboot.springbooturlshortner.domain.Url;
+import com.springboot.springbooturlshortner.exception.UrlException;
+import com.springboot.springbooturlshortner.exception.UrlExceptionCode;
+import com.springboot.springbooturlshortner.repository.UrlRepository;
+import com.springboot.springbooturlshortner.util.Base62Util;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.beans.factory.annotation.Value;
+
+import java.util.Optional;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class UrlServiceTest {
+
+    @InjectMocks
+    private UrlService urlService;
+    @InjectMocks
+    private Base62Util base62Util;
+    @Mock
+    private UrlRepository urlRepository;
+    @Value("${spring.start-url}")
+    private String startUrl;
+
+    @BeforeEach
+    void setUp() {
+        urlService = new UrlService(urlRepository, base62Util);
+    }
+
+    @Test
+    @DisplayName("단축 url 생성 성공")
+    void Success_CreateShortenUrl() {
+        // given
+        String originUrl = "https://test-url";
+        ShortenUrlRequestDto shortenUrlRequestDto = new ShortenUrlRequestDto(originUrl);
+        Url url = shortenUrlRequestDto.toUrlEntity();
+        url.setId(10000L);
+        String expectedShortenUrl = startUrl + "/" + base62Util.encoding(url.getId());
+        when(urlRepository.save(any(Url.class))).thenReturn(url);
+
+        // when
+        String resultShortenUrl = urlService.createShortenUrl(shortenUrlRequestDto);
+
+        // then
+        Assertions.assertEquals(expectedShortenUrl, resultShortenUrl);
+    }
+
+    @Test
+    @DisplayName("단축 url 생성 실패 - 유효하지 않은 기존 url")
+    void Fail_CreateShortenUrl_With_InvalidOriginUrl() {
+        // given
+        String originUrl = "htt://test-url";
+        ShortenUrlRequestDto shortenUrlRequestDto = new ShortenUrlRequestDto(originUrl);
+
+        // when
+        UrlException e = Assertions.assertThrows(UrlException.class, () -> urlService.createShortenUrl(shortenUrlRequestDto));
+
+        // then
+        Assertions.assertEquals(UrlExceptionCode.INVALID_ORIGIN_URL.getMessage(), e.getMessage());
+    }
+
+    @Test
+    @DisplayName("기존 url 반환 성공")
+    void Success_GetOriginUrl() {
+        // given
+        String expectedOriginUrl = "https://test-url";
+        ShortenUrlRequestDto shortenUrlRequestDto = new ShortenUrlRequestDto(expectedOriginUrl);
+        Url url = shortenUrlRequestDto.toUrlEntity();
+        url.setId(10000L);
+        String shortenUrl = startUrl + "/" + base62Util.encoding(url.getId());
+        when(urlRepository.findById(any(Long.class))).thenReturn(Optional.of(url));
+
+        // when
+        String resultOriginUrl = urlService.getOriginUrl(shortenUrl);
+
+        // then
+        Assertions.assertEquals(expectedOriginUrl, resultOriginUrl);
+    }
+
+    @Test
+    @DisplayName("단축 url 생성 실패 - 존재하지 않는 단축 url")
+    void Fail_GetOriginUrl_With_NotExistingShortenUrl() {
+        // given
+        String expectedOriginUrl = "https://test-url";
+        ShortenUrlRequestDto shortenUrlRequestDto = new ShortenUrlRequestDto(expectedOriginUrl);
+        Url url = shortenUrlRequestDto.toUrlEntity();
+        url.setId(10000L);
+        String shortenUrl = startUrl + "/" + base62Util.encoding(url.getId()) + "test";
+        when(urlRepository.findById(any(Long.class))).thenReturn(Optional.empty());
+
+        // when
+        UrlException e = Assertions.assertThrows(UrlException.class, () -> urlService.getOriginUrl(shortenUrl));
+
+        // then
+        Assertions.assertEquals(UrlExceptionCode.NOT_FOUND.getMessage(), e.getMessage());
+    }
+
+}