add unit tests to static credentials

Author: vgvoleg

tests/auth/test_static_credentials.py

@@ -0,0 +1,50 @@
+import pytest
+import ydb
+
+from concurrent.futures import TimeoutError
+
+
+USERNAME = "root"
+PASSWORD = "1234"
+
+
+def check_driver_works(driver):
+    driver.wait(timeout=15)
+    pool = ydb.QuerySessionPool(driver)
+    result = pool.execute_with_retries("SELECT 1 as cnt")
+    assert result[0].rows[0].cnt == 1
+
+
+def test_static_credentials_default(endpoint, database):
+    driver_config = ydb.DriverConfig(
+        endpoint,
+        database
+    )
+    credentials = ydb.StaticCredentials(driver_config, USERNAME, PASSWORD)
+
+    with ydb.Driver(driver_config=driver_config, credentials=credentials) as driver:
+        check_driver_works(driver)
+
+
+def test_static_credentials_classmethod(endpoint, database):
+    driver_config = ydb.DriverConfig(
+        endpoint,
+        database,
+        credentials=ydb.StaticCredentials.from_user_password(USERNAME, PASSWORD)
+    )
+
+    with ydb.Driver(driver_config=driver_config) as driver:
+        check_driver_works(driver)
+
+
+def test_static_credentials_wrong_creds(endpoint, database):
+    driver_config = ydb.DriverConfig(
+        endpoint,
+        database,
+        credentials=ydb.StaticCredentials.from_user_password(USERNAME, PASSWORD*2)
+    )
+
+    with pytest.raises(TimeoutError):
+        with ydb.Driver(driver_config=driver_config) as driver:
+            driver.wait(5)
+