diff --git a/src/GitLabApiClient/Models/Branches/Requests/ProtectBranchRequest.cs b/src/GitLabApiClient/Models/Branches/Requests/ProtectBranchRequest.cs
index e9ea51e5..ab10f8aa 100644
--- a/src/GitLabApiClient/Models/Branches/Requests/ProtectBranchRequest.cs
+++ b/src/GitLabApiClient/Models/Branches/Requests/ProtectBranchRequest.cs
@@ -19,15 +19,15 @@ public sealed class ProtectBranchRequest
         /// <param name="unprotectAccessLevel">Access levels allowed to unprotect.</param>
         public ProtectBranchRequest(
             string name,
-            ProtectedRefAccessLevels? pushAccessLevel = ProtectedRefAccessLevels.MaintainerAccess,
-            ProtectedRefAccessLevels? mergeAccessLevel = ProtectedRefAccessLevels.MaintainerAccess,
-            ProtectedRefAccessLevels? unprotectAccessLevel = ProtectedRefAccessLevels.MaintainerAccess)
+            ProtectedRefAccessLevels pushAccessLevel = ProtectedRefAccessLevels.MaintainerAccess,
+            ProtectedRefAccessLevels mergeAccessLevel = ProtectedRefAccessLevels.MaintainerAccess,
+            ProtectedRefAccessLevels unprotectAccessLevel = ProtectedRefAccessLevels.MaintainerAccess)
         {
             Guard.NotEmpty(name, nameof(name));
-
-            PushAccessLevel = pushAccessLevel.ToString();
-            MergeAccessLevel = mergeAccessLevel.ToString();
-            UnprotectAccessLevel = unprotectAccessLevel.ToString();
+            Name = name;
+            PushAccessLevel = pushAccessLevel;
+            MergeAccessLevel = mergeAccessLevel;
+            UnprotectAccessLevel = unprotectAccessLevel;
         }
 
         /// <summary>
@@ -40,18 +40,18 @@ public ProtectBranchRequest(
         /// Access levels allowed to push (defaults: 40, maintainer access level).
         /// </summary>
         [JsonProperty("push_access_level")]
-        public string PushAccessLevel { get; set; }
+        public ProtectedRefAccessLevels PushAccessLevel { get; set; }
 
         /// <summary>
         /// Access levels allowed to merge (defaults: 40, maintainer access level).
         /// </summary>
         [JsonProperty("merge_access_level")]
-        public string MergeAccessLevel { get; set; }
+        public ProtectedRefAccessLevels MergeAccessLevel { get; set; }
 
         /// <summary>
         /// Access levels allowed to unprotect (defaults: 40, maintainer access level).
         /// </summary>
         [JsonProperty("unprotect_access_level")]
-        public string UnprotectAccessLevel { get; set; }
+        public ProtectedRefAccessLevels UnprotectAccessLevel { get; set; }
     }
 }
diff --git a/test/GitLabApiClient.Test/BranchesClientTest.cs b/test/GitLabApiClient.Test/BranchesClientTest.cs
new file mode 100644
index 00000000..fee80df2
--- /dev/null
+++ b/test/GitLabApiClient.Test/BranchesClientTest.cs
@@ -0,0 +1,70 @@
+using System.Threading.Tasks;
+using FluentAssertions;
+using GitLabApiClient.Internal.Queries;
+using GitLabApiClient.Models.Branches.Requests;
+using GitLabApiClient.Models.Branches.Responses;
+using Xunit;
+using static GitLabApiClient.Test.Utilities.GitLabApiHelper;
+
+namespace GitLabApiClient.Test
+{
+    [Trait("Category", "LinuxIntegration")]
+    [Collection("GitLabContainerFixture")]
+    public class BranchesClientTest
+    {
+        private readonly BranchClient _sut = new BranchClient(
+            GetFacade(), new BranchQueryBuilder());
+
+        [Fact]
+        public async Task CreatedBranchCanBeDeleted()
+        {
+            //arrange
+            const string name = "Title1";
+            const string source = "main";
+            var createdBranch = await _sut.CreateAsync(TestProjectId, new Models.Branches.Requests.CreateBranchRequest(name, source));
+
+            //act
+            await _sut.DeleteBranch(TestProjectTextId, createdBranch.Name);
+
+            //assert
+            var deletedBranch = await _sut.GetAsync(TestProjectId, name);
+            createdBranch.Should().Match<Branch>(i =>
+                i.Name == "Title1");
+
+            deletedBranch.Should().BeNull();
+        }
+
+        [Fact]
+        public async Task CreatedBranchCanBeProtected()
+        {
+            //arrange
+            const string name = "Title2";
+            const string source = "main";
+            var createdBranch = await _sut.CreateAsync(TestProjectId, new Models.Branches.Requests.CreateBranchRequest(name, source));
+
+            //act
+            var protectedBranch = await _sut.ProtectBranchAsync(TestProjectId, new ProtectBranchRequest(name));
+
+            //assert
+            protectedBranch.Should().Match<ProtectedBranch>(i => i.Name == name);
+        }
+
+        [Fact]
+        public async Task CreatedBranchCanBeUnprotected()
+        {
+            //arrange
+            const string name = "Title3";
+            const string source = "main";
+            var createdBranch = await _sut.CreateAsync(TestProjectId, new Models.Branches.Requests.CreateBranchRequest(name, source));
+
+            //act
+            var protectedBranch = await _sut.ProtectBranchAsync(TestProjectId, new ProtectBranchRequest(name));
+            await _sut.UnprotectBranchAsync(TestProjectId, name);
+
+            //assert
+            protectedBranch.Should().Match<ProtectedBranch>(i => i.Name == name);
+            var unprotectedBranch = await _sut.GetProtectedBranchesAsync(TestProjectId, name);
+            unprotectedBranch.Should().BeNull();
+        }
+    }
+}