Function closeWindowsImplementation

src/test/initialize.ts:73–89

(timeout = 1_000)

        }
    }
    const closeWindowsImplementation = (timeout = 1_000) => {
        return new Promise<void>((resolve, reject) => {
            // Attempt to fix #1301.
            // Lets not waste too much time.
            const timer = setTimeout(() => reject(new CloseEditorsTimeoutError()), timeout);
            vscode.commands.executeCommand('workbench.action.closeAllEditors').then(
                () => {
                    clearTimeout(timer);
                    resolve();
                },
                (ex) => {
                    clearTimeout(timer);
                    reject(ex);
                }
            );
        });
    };

    // For some reason some times the command times out.
    // If this happens, just wait & retry, no idea why VS Code is flaky.