@Test
public void testRemoveButton() {

    ButtonFooterMixin mixin = new ButtonFooterMixin(mTemplateLayout);
    final Button fooButton = mixin.addButton("foo", R.style.SuwGlifButton_Secondary);
    final Button barButton = mixin.addButton("bar", R.style.SuwGlifButton_Secondary);

    fooButton.setTag("foo");
    barButton.setTag("bar");
    assertNotNull("Foo button should exist", mStubParent.findViewWithTag("foo"));
    assertNotNull("Bar button should exist", mStubParent.findViewWithTag("bar"));

    mixin.removeButton(fooButton);

    assertNull("Foo button should be removed", mStubParent.findViewWithTag("foo"));
    assertNotNull("Bar button should not be removed", mStubParent.findViewWithTag("bar"));
}