优化

auth/src/test/java/com/baiyue/auth/service/MerchantRegistrationServiceTest.java

@@ -23,6 +23,7 @@ import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
+import static org.mockito.Mockito.never;
 
 @SpringJUnitConfig(MerchantRegistrationService.class)
 @TestPropertySource(properties = "baiyue.security.internal-service-token=internal-token")
@@ -61,6 +62,49 @@ class MerchantRegistrationServiceTest {
         assertEquals("PENDING", result.dimensionInitializationStatus());
     }
 
+    @Test
+    void exactIncompleteRegistrationRetryReturnsTheExistingRegistration() {
+        AuthAccount account = new AuthAccount();
+        account.setId(9001L);
+        account.setUsername("registered_owner");
+        account.setPhone("13800138000");
+        account.setPasswordHash("encoded-password");
+        account.setAccountStatus("ACTIVE");
+        account.setDefaultAppCode("MERCHANT");
+        when(accounts.findByUsername("registered_owner")).thenReturn(account);
+        when(accounts.findByPhone("13800138000")).thenReturn(account);
+        when(encoder.matches("Password123", "encoded-password")).thenReturn(true);
+        when(onboarding.registration("internal-token", 9001L)).thenReturn(ApiResponse.success(
+                new IamOnboardingClient.OnboardingResponse(10001L, 30001L, "PROFILE_REQUIRED", "READY")));
+
+        var result = service.register(new MerchantRegisterRequest(
+                "registered_owner", "Password123", "注册人", "测试企业", null,
+                "13800138000", "owner@example.com", "CN", "深圳市宝安区"));
+
+        assertEquals(9001L, result.accountId());
+        assertEquals(10001L, result.tenantId());
+        assertEquals("READY", result.dimensionInitializationStatus());
+        verify(onboarding, never()).register(eq("internal-token"), any());
+        verify(accounts, never()).insert(any());
+    }
+
+    @Test
+    void phoneOwnedByAnotherUsernameDirectsTheUserBackToLogin() {
+        AuthAccount account = new AuthAccount();
+        account.setId(9001L);
+        account.setUsername("registered_owner");
+        account.setPhone("13800138000");
+        when(accounts.findByPhone("13800138000")).thenReturn(account);
+
+        var failure = assertThrows(com.baiyue.common.core.exception.BizException.class,
+                () -> service.register(new MerchantRegisterRequest(
+                        "another_owner", "Password123", "注册人", "测试企业", null,
+                        "13800138000", "owner@example.com", "CN", "深圳市宝安区")));
+
+        assertEquals("该手机号已注册，请直接登录后继续完善企业资质", failure.getMessage());
+        verify(onboarding, never()).register(eq("internal-token"), any());
+    }
+
     @Test
     void failedAuthInsertCompensatesTheIamRegistration() {
         when(encoder.encode("Password123")).thenReturn("encoded-password");