34     def setUp(self):  argument
37     def tearDown(self):  argument
47     def check_big(self):  argument
50     def check_small(self):  argument
55     def test_qemu_img(self):  argument
67     def setUp(self):  argument
72     def tearDown(self):  argument
76     def test_prealloc(self):  argument
80     def test_external_snapshot(self):  argument
98     def test_reopen_opts(self):  argument
120     def setUp(self):  argument
124     def tearDown(self):  argument
128     def do_test(self, prealloc_mode, new_size):  argument
151     def test_real_shrink(self):  argument
154     def test_truncate_inside_preallocated_area__falloc(self):  argument
157     def test_truncate_inside_preallocated_area__metadata(self):  argument
160     def test_truncate_inside_preallocated_area__full(self):  argument
163     def test_truncate_inside_preallocated_area__off(self):  argument
166     def test_truncate_over_preallocated_area__falloc(self):  argument
169     def test_truncate_over_preallocated_area__metadata(self):  argument
172     def test_truncate_over_preallocated_area__full(self):  argument
175     def test_truncate_over_preallocated_area__off(self):  argument