def METHOD_NAME():
    '''
    Test if the missing products are returned correctly, excluding
    the ones that are provided by another installed product.
    '''
    test_data = {
        'not_installed': {'product1': True, 'product2': True},
        'provides-product1': {'product1': True, 'this-provides-product1': True},
        'provides-product2': {'product2': True}
    }
    pkg_search_mock = MagicMock(side_effect=[
        test_data['not_installed'],
        test_data['provides-product1'],
        test_data['provides-product2']])
    with patch.dict(product.__salt__, {'pkg.search': pkg_search_mock}):
        res = product._get_missing_products(False)
        # Expected pkg.search calls
        calls = [
            call('product()', refresh=False, match='exact', provides=True, not_installed_only=True),
            call('product1', match='exact', provides=True),
            call('product2', match='exact', provides=True)
        ]
        pkg_search_mock.assert_has_calls(calls)
        assert pkg_search_mock.call_count == 3
        # Assert that only the non-provided product is returned
        assert res == ['product2']