[Doc][CI] Update docs and test utils (#40534)

- Removed referenced to -UserAuth since that flag no longer exists
- Removed VisualStudioCodeCredential as a test credential option. This
  credential has long been broken and is being deprecated soon.

Signed-off-by: Paul Van Eck <[email protected]>

Author: pvaneck

doc/dev/tests.md

@@ -174,15 +174,12 @@ Live Azure resources will be necessary in order to run live tests and produce re
 resource management commands, documented in [/eng/common/TestResources][test_resources], that streamline this process.
 Both pure ARM templates (`test-resources.json`) and BICEP files (`test-resources.bicep`) are supported.
 
-User-based authentication is preferred when using test resources. To enable this:
-- Use the [`-UserAuth` command flag][user_auth_flag] when running the `New-TestResources` script.
+User-based authentication is preferred when using test resources. The `New-TestResources` script defaults to user-based authentication. To use it:
 - Choose a development tool to authenticate with by setting an `AZURE_TEST_USE_*_AUTH` environment variable to "true" (tests will authenticate as the tool's logged-in user). The following tools are supported, listed in the order that authentication will be attempted in if requested:
   1. Azure PowerShell: set `AZURE_TEST_USE_PWSH_AUTH`.
   2. Azure CLI (`az`): set `AZURE_TEST_USE_CLI_AUTH`.
-  3. Visual Studio Code: set `AZURE_TEST_USE_VSCODE_AUTH`.
   4. Azure Developer CLI (`azd`): set `AZURE_TEST_USE_AZD_AUTH`.
-- Ensure you're logged into the tool you choose -- if
-you used `New-TestResources.ps1` to deploy resources, you'll already have logged in with Azure PowerShell.
+- Ensure you're logged into the tool you choose -- if you used `New-TestResources` to deploy resources, you'll already have logged in with Azure PowerShell.
 
 **Important:** these environment variables will only be successfully used if test credentials are fetched with the
 [`AzureRecordedTestCase.get_credential`][get_credential] method. See [Write your tests](#write-your-tests) for details.
@@ -215,11 +212,10 @@ environment variables necessary to run live tests for the service. After storing
 -- formatted as `VARIABLE=value` on separate lines -- your credentials and test configuration variables will be set in
 our environment when running tests.
 
-If you used the [`-UserAuth` command flag][user_auth_flag] to deploy test resources, choose a development tool to
+Since `New-TestResources` defaults to user-based authentication, choose a development tool to
 authenticate with by setting an `AZURE_TEST_USE_*_AUTH` environment variable to "true". The following tools are supported, listed in the order that authentication will be attempted in if requested:
   1. Azure PowerShell: set `AZURE_TEST_USE_PWSH_AUTH`.
   2. Azure CLI (`az`): set `AZURE_TEST_USE_CLI_AUTH`.
-  3. Visual Studio Code: set `AZURE_TEST_USE_VSCODE_AUTH`.
   4. Azure Developer CLI (`azd`): set `AZURE_TEST_USE_AZD_AUTH`.
 
 **Important:** these environment variables will only be successfully used if test credentials are fetched with the
@@ -611,4 +607,3 @@ For information about more advanced testing scenarios, refer to the [advanced te
 [test_proxy_startup]: https://github.com/Azure/azure-sdk-for-python/blob/main/doc/dev/test_proxy_migration_guide.md#start-the-proxy-server
 [test_resources]: https://github.com/Azure/azure-sdk-for-python/tree/main/eng/common/TestResources#readme
 [troubleshooting_guide]: https://github.com/Azure/azure-sdk-for-python/blob/main/doc/dev/test_proxy_troubleshooting.md
-[user_auth_flag]: https://github.com/Azure/azure-sdk-for-python/blob/main/eng/common/TestResources/New-TestResources.ps1.md#-userauth

tools/azure-sdk-tools/devtools_testutils/azure_recorded_testcase.py

@@ -198,7 +198,6 @@ def get_credential(**kwargs):
 
     use_pwsh = os.environ.get("AZURE_TEST_USE_PWSH_AUTH", "false")
     use_cli = os.environ.get("AZURE_TEST_USE_CLI_AUTH", "false")
-    use_vscode = os.environ.get("AZURE_TEST_USE_VSCODE_AUTH", "false")
     use_azd = os.environ.get("AZURE_TEST_USE_AZD_AUTH", "false")
     is_async = kwargs.pop("is_async", False)
 
@@ -222,16 +221,6 @@ def get_credential(**kwargs):
             if is_async:
                 from azure.identity.aio import AzureCliCredential
             return AzureCliCredential(**kwargs)
-        # User-based authentication through Visual Studio Code, if requested
-        if use_vscode.lower() == "true":
-            _LOGGER.info(
-                "Environment variable AZURE_TEST_USE_VSCODE_AUTH set to 'true'. Using VisualStudioCodeCredential."
-            )
-            from azure.identity import VisualStudioCodeCredential
-
-            if is_async:
-                from azure.identity.aio import VisualStudioCodeCredential
-            return VisualStudioCodeCredential(**kwargs)
         # User-based authentication through Azure Developer CLI (azd), if requested
         if use_azd.lower() == "true":
             _LOGGER.info(

tools/azure-sdk-tools/devtools_testutils/envvariable_loader.py

@@ -64,9 +64,8 @@ def _set_mgmt_settings_real_values(self):
             if not all(x is not None for x in [tenant, client, secret]):
                 use_pwsh = os.environ.get("AZURE_TEST_USE_PWSH_AUTH", "false").lower()
                 use_cli = os.environ.get("AZURE_TEST_USE_CLI_AUTH", "false").lower()
-                use_vscode = os.environ.get("AZURE_TEST_USE_VSCODE_AUTH", "false").lower()
                 use_azd = os.environ.get("AZURE_TEST_USE_AZD_AUTH", "false").lower()
-                user_auth = use_pwsh == "true" or use_cli == "true" or use_vscode == "true" or use_azd == "true"
+                user_auth = use_pwsh == "true" or use_cli == "true" or use_azd == "true"
                 if not user_auth:
                     # All variables are required for service principal authentication
                     _logger.warn(