If you use the TortoiseHg client to work with Mercurial from TestComplete, you can configure your client directly from TestComplete.

Select File | Source Control | Repository Settings from the TestComplete main menu.

— or —

Right-click your project suite in the Project Explorer and then click Source Control | Repository Settings.

— or —

Click Launch the Repository Configuration Editor on the Source Control toolbar (if the toolbar is hidden, right-click the toolbar area and then click Source Control).
TestComplete will open the TortoiseHg client’s Settings dialog.

In the dialog, you can configure your TortoiseHG settings on the repository level (the settings that will affect only the current repository).

To configure TortoiseHg settings on a global level:

Select File | Source Control | Global Settings from the TestComplete main menu.

— or —

Right-click your project suite in the Project Explorer and then click Source Control | Global Settings.

— or —

Click Launch the User Configuration Editor on the Source Control toolbar (if the toolbar is hidden, right-click the toolbar area and then click Source Control).
TestComplete will open the TortoiseHg client’s Settings dialog.

In the dialog, you can configure your TortoiseHg settings on the global level. These settings will affect all your repositories (unless they are overwritten by repository local settings).

For detailed information on TortoiseHg settings, see TortoiseHg documentation.

Configuring TortoiseHg