fixed parentId parameter and tested complete

modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IOrganizationUnitRepository.cs

@@ -28,6 +28,7 @@ namespace Volo.Abp.Identity
         );
 
         Task<List<OrganizationUnit>> GetListAsync(
+            Guid? parentId,
             string sorting = null,
             int maxResultCount = int.MaxValue,
             int skipCount = 0,

modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/EfCoreOrganizationUnitRepository.cs

@@ -45,6 +45,7 @@ namespace Volo.Abp.Identity.EntityFrameworkCore
         }
 
         public virtual async Task<List<OrganizationUnit>> GetListAsync(
+            Guid? parentId,
             string sorting = null,
             int maxResultCount = int.MaxValue,
             int skipCount = 0,
@@ -54,6 +55,7 @@ namespace Volo.Abp.Identity.EntityFrameworkCore
         {
             return await DbSet
                 .IncludeDetails(includeDetails)
+                .Where(ou=>ou.ParentId==parentId)
                 .WhereIf(!filter.IsNullOrWhiteSpace(),
                     ou => ou.DisplayName.Contains(filter) ||
                           ou.Code.Contains(filter))
@@ -172,6 +174,7 @@ namespace Volo.Abp.Identity.EntityFrameworkCore
             CancellationToken cancellationToken = default)
         {
             return await DbSet
+                .Where(ou=>ou.ParentId==parentId)
                 .WhereIf(!filter.IsNullOrWhiteSpace(), ou =>
                     ou.DisplayName.Contains(filter) ||
                     ou.Code.Contains(filter))

modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoOrganizationUnitRepository.cs

@@ -56,6 +56,7 @@ namespace Volo.Abp.Identity.MongoDB
         }
 
         public virtual async Task<List<OrganizationUnit>> GetListAsync(
+            Guid? parentId,
             string sorting = null,
             int maxResultCount = int.MaxValue,
             int skipCount = 0,
@@ -64,6 +65,7 @@ namespace Volo.Abp.Identity.MongoDB
             CancellationToken cancellationToken = default)
         {
             return await GetMongoQueryable()
+                .Where(ou=>ou.ParentId==parentId)
                 .WhereIf(!filter.IsNullOrWhiteSpace(),
                     ou => ou.DisplayName.Contains(filter) ||
                           ou.Code.Contains(filter))
@@ -165,6 +167,7 @@ namespace Volo.Abp.Identity.MongoDB
             CancellationToken cancellationToken = default)
         {
             return await GetMongoQueryable()
+                .Where(ou=>ou.ParentId==parentId)
                 .WhereIf<OrganizationUnit, IMongoQueryable<OrganizationUnit>>(!filter.IsNullOrWhiteSpace(), ou =>
                     ou.DisplayName.Contains(filter) ||
                     ou.Code.Contains(filter))

modules/identity/test/Volo.Abp.Identity.TestBase/Volo/Abp/Identity/OrganizationUnitRepository_Tests.cs

@@ -59,6 +59,22 @@ namespace Volo.Abp.Identity
             var ous = await _organizationUnitRepository.GetListAsync(ouIds);
             ous.Count.ShouldBe(2);
             ous.ShouldContain(ou => ou.Id == ouIds.First());
+
+            var ou11 = await _organizationUnitRepository.GetAsync("OU11");
+            ou11.ShouldNotBeNull();
+            var ou11Children = await _organizationUnitRepository.GetListAsync(ou11.Id, includeDetails: true);
+            ou11Children.Count.ShouldBe(2);
+        }
+
+        [Fact]
+        public async Task GetLongCountAsync()
+        {
+            (await _organizationUnitRepository.GetLongCountAsync(_guidGenerator.Create(), filter: "11")).ShouldBe(0);
+            var countRoot = await _organizationUnitRepository.GetLongCountAsync(null, filter: "1");
+            countRoot.ShouldBe(1);
+            var ou11 = await _organizationUnitRepository.GetAsync("OU11");
+            ou11.ShouldNotBeNull();
+            (await _organizationUnitRepository.GetLongCountAsync(ou11.Id, "2")).ShouldBe(1);
         }
 
         [Fact]
@@ -192,7 +208,7 @@ namespace Volo.Abp.Identity
         {
             OrganizationUnit ou1 = await _organizationUnitRepository.GetAsync("OU111", true);
             OrganizationUnit ou2 = await _organizationUnitRepository.GetAsync("OU112", true);
-            var users = await _identityUserRepository.GetUsersInOrganizationsListAsync(new List<Guid> {ou1.Id, ou2.Id});
+            var users = await _identityUserRepository.GetUsersInOrganizationsListAsync(new List<Guid> { ou1.Id, ou2.Id });
             users.Count.ShouldBeGreaterThan(0);
         }