✅ #140 JwtTokenProvider 테스트 코드 작성

src/test/java/dev/backlog/auth/domain/oauth/JwtTokenProviderTest.java

@@ -0,0 +1,65 @@
+package dev.backlog.auth.domain.oauth;
+
+import io.jsonwebtoken.*;
+import io.jsonwebtoken.security.Keys;
+import org.assertj.core.util.DateUtil;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import java.util.Base64;
+import java.util.Date;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@ExtendWith(MockitoExtension.class)
+class JwtTokenProviderTest {
+
+    private static final String SECRET_KEY = Base64.getEncoder().encodeToString(Keys.secretKeyFor(SignatureAlgorithm.HS512).getEncoded());
+
+    @InjectMocks
+    private JwtTokenProvider provider = new JwtTokenProvider(SECRET_KEY);
+
+    @Test
+    void generate() {
+        String subject = "123L";
+        Date date = new Date(System.currentTimeMillis() + 3600000);
+
+        String result = provider.generate(subject, date);
+
+        assertThat(result).isNotNull();
+    }
+
+    @Test
+    void extractUserId() {
+        String subject = "123";
+        Date date = new Date(System.currentTimeMillis() + 3600000);
+
+        String token = provider.generate(subject, date);
+        Long result = provider.extractUserId(token);
+
+        assertThat(result).isEqualTo(Long.parseLong(subject));
+    }
+
+    @Test
+    void isExpiredRefreshToken() {
+        String subject = "123L";
+        Date date = new Date(System.currentTimeMillis() + 3600000);
+
+        String token = provider.generate(subject, date);
+
+        assertThat(provider.isExpiredRefreshToken(token)).isFalse();
+    }
+
+    @Test
+    void isExpiredRefreshTokenFail() {
+        String subject = "123L";
+        Date date = DateUtil.yesterday();
+
+        String token = provider.generate(subject, date);
+
+        assertThat(provider.isExpiredRefreshToken(token)).isTrue();
+    }
+
+}