g = vsg[0].viewSubGroups;
    assert.strictEqual(wf1vsg.length, 1);
    assert.strictEqual(wf1vsg[0].title, 'Baz');
    assert.strictEqual(wf1vsg[0].getSettingsKey(),
        'processes.Renderer.MainThread.Frame:ptr:0x1ee7beef.Baz');
    const wf2vsg = vsg[1].viewSubGroups;
    assert.strictEqual(wf2vsg.length, 2);
    assert.strictEqual(wf2vsg[0].title, 'Bar');
    assert.strictEqual(wf2vsg[0].getSettingsKey(),
        'processes.Renderer.MainThread.Frame:ptr:0xdeadbeef.Bar');
    assert.strictEqual(wf2vsg