diff --git a/modules/cms-kit/test/Volo.CmsKit.Domain.Tests/Tags/TagManager_Tests.cs b/modules/cms-kit/test/Volo.CmsKit.Domain.Tests/Tags/TagManager_Tests.cs
new file mode 100644
index 0000000000..aa31b015cc
--- /dev/null
+++ b/modules/cms-kit/test/Volo.CmsKit.Domain.Tests/Tags/TagManager_Tests.cs
@@ -0,0 +1,104 @@
+using System;
+using System.Threading.Tasks;
+using Shouldly;
+using Xunit;
+
+namespace Volo.CmsKit.Tags
+{
+    public class TagManager_Tests : CmsKitDomainTestBase
+    {
+        private readonly CmsKitTestData _cmsKitTestData;
+        private readonly TagManager _tagManager;
+
+        private readonly ITagRepository _tagRepository;
+        
+        public TagManager_Tests()
+        {
+            _cmsKitTestData = GetRequiredService<CmsKitTestData>();
+            _tagManager = GetRequiredService<TagManager>();
+            _tagRepository = GetRequiredService<ITagRepository>();
+        }
+
+        [Fact]
+        public async Task ShouldAddWhenGettingAsync()
+        {
+            var newTagEntityType = "testEntity";
+            var newTagName = "test_tag_2123";
+            
+            var doesExist = await _tagRepository.AnyAsync(newTagEntityType, newTagName);
+            
+            doesExist.ShouldBeFalse();
+            
+            var newTag = await _tagManager.GetOrAddAsync(newTagEntityType, newTagName);
+
+            newTag.ShouldNotBeNull();
+            
+            var doesExistAgain = await _tagRepository.AnyAsync(newTagEntityType, newTagName);
+            
+            doesExistAgain.ShouldBeTrue();
+        }
+        
+        [Fact]
+        public async Task ShouldNotAddWhenGettingAsync()
+        {
+            var tagName = _cmsKitTestData.Content_1_Tags[0];
+
+            var tag = await _tagRepository.GetAsync(_cmsKitTestData.Content_1_EntityType, tagName);
+            
+            var newTag = await _tagManager.GetOrAddAsync(_cmsKitTestData.Content_1_EntityType, tag.Name);
+
+            newTag.ShouldNotBeNull();
+            
+            newTag.Id.ShouldBe(tag.Id);
+        }
+
+        [Fact]
+        public async Task ShouldInsert()
+        {
+            var tag = await _tagManager.InsertAsync(Guid.NewGuid(), "test", "test");
+
+            tag.ShouldNotBeNull();
+
+            var doesExist = await _tagRepository.AnyAsync("test", "test");
+            
+            doesExist.ShouldBeTrue();
+        }
+        
+        [Fact]
+        public async Task ShouldNotInsert()
+        {
+            var type = _cmsKitTestData.Content_1_EntityType;
+            var name = _cmsKitTestData.Content_1_Tags[0];
+
+            Should.Throw<Exception>(async () => await _tagManager.InsertAsync(Guid.NewGuid(), type, name));
+        }
+        
+        [Fact]
+        public async Task ShouldUpdate()
+        {
+            var type = _cmsKitTestData.Content_1_EntityType;
+            var name = _cmsKitTestData.Content_1_Tags[0];
+            var newName = name + "-updated";
+            
+            var tag = await _tagRepository.GetAsync(type, name);
+
+            await _tagManager.UpdateAsync(tag.Id, newName);
+
+            var updatedTag = await _tagRepository.GetAsync(type, newName);
+            
+            updatedTag.Id.ShouldBe(tag.Id);
+        }
+        
+        [Fact]
+        public async Task ShouldNotUpdate()
+        {
+            var type = _cmsKitTestData.Content_1_EntityType;
+            var name = _cmsKitTestData.Content_1_Tags[0];
+            var newName = _cmsKitTestData.Content_1_Tags[1];
+            
+            var tag = await _tagRepository.GetAsync(type, name);
+
+            Should.Throw<Exception>(async () => await _tagManager.UpdateAsync(tag.Id, newName));
+        }
+    }
+}
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