diff --git a/src/Ydb.Sdk/tests/Auth/TestStaticAuth.cs b/src/Ydb.Sdk/tests/Auth/TestStaticAuth.cs
index 940004b5..cb203da3 100644
--- a/src/Ydb.Sdk/tests/Auth/TestStaticAuth.cs
+++ b/src/Ydb.Sdk/tests/Auth/TestStaticAuth.cs
@@ -41,7 +41,26 @@ private async Task DropUser(TableClient tableClient, string user)
         _logger.LogInformation($"User {user} dropped successfully");
     }
 
-    private async Task DoAuth(string? passwordCreate, string? passwordAuth, int maxRetries = 5)
+    private async Task Authorize(string user, string? password, int maxRetries)
+    {
+        var driverConfig = new DriverConfig(
+            endpoint: "grpc://localhost:2136",
+            database: "/local",
+            new StaticCredentialsProvider(user, password, _loggerFactory) { MaxRetries = maxRetries }
+        );
+
+        _logger.LogInformation($"DriverConfig for {user} created");
+
+        await using var driver = await Driver.CreateInitialized(driverConfig, _loggerFactory);
+        _logger.LogInformation($"Driver for {user} created and initialized");
+        using var tableClient = new TableClient(driver);
+
+        var response = await Utils.ExecuteDataQuery(tableClient, "SELECT 1");
+        var row = response.Result.ResultSets[0].Rows[0];
+        Assert.Equal(1, row[0].GetInt32());
+    }
+
+    private async Task CheckAuth(string? passwordCreate, string? passwordAuth, int maxRetries = 5)
     {
         _logger.LogInformation("Creating anon driver");
         var anonDriverConfig = new DriverConfig(
@@ -60,21 +79,7 @@ private async Task DoAuth(string? passwordCreate, string? passwordAuth, int maxR
 
         try
         {
-            var driverConfig = new DriverConfig(
-                endpoint: "grpc://localhost:2136",
-                database: "/local",
-                new StaticCredentialsProvider(user, passwordAuth, _loggerFactory) { MaxRetries = maxRetries }
-            );
-
-            _logger.LogInformation($"DriverConfig for {user} created");
-
-            await using var driver = await Driver.CreateInitialized(driverConfig, _loggerFactory);
-            _logger.LogInformation($"Driver for {user} created and initialized");
-            using var tableClient = new TableClient(driver);
-
-            var response = await Utils.ExecuteDataQuery(tableClient, "SELECT 1");
-            var row = response.Result.ResultSets[0].Rows[0];
-            Assert.Equal(1, row[0].GetInt32());
+            await Authorize(user, passwordAuth, maxRetries);
         }
         finally
         {
@@ -86,20 +91,20 @@ private async Task DoAuth(string? passwordCreate, string? passwordAuth, int maxR
     [Fact]
     public async Task GoodAuth()
     {
-        await DoAuth("test_password", "test_password");
+        await CheckAuth("test_password", "test_password");
     }
 
     [Fact]
     public async Task NoPasswordAuth()
     {
-        await DoAuth(null, null);
+        await CheckAuth(null, null);
     }
 
     [Fact]
     public async Task WrongPassword()
     {
         await Assert.ThrowsAsync<InvalidCredentialsException>(
-            async () => await DoAuth("good_password", "wrong_password", maxRetries: 1));
+            async () => await CheckAuth("good_password", "wrong_password", maxRetries: 1));
     }
 
     [Fact]