def test_init_regions_version()

in _damon.py [0:0]

• 31 lines of code
• 7 McCabe index (conditional complexity)

def test_init_regions_version():
    # Save previous values
    with open(debugfs_target_ids, 'r') as f:
        orig_target_ids = f.read()
        if orig_target_ids == '':
            orig_target_ids = '\n'
        if orig_target_ids == '42\n':
            orig_target_ids = 'paddr\n'
    with open(debugfs_init_regions, 'r') as f:
        orig_init_regions = f.read()
        if orig_init_regions == '':
            orig_init_regions = '\n'

    # Test
    with open(debugfs_target_ids, 'w') as f:
        f.write('paddr\n')
    try:
        with open(debugfs_init_regions, 'w') as f:
            f.write('42 100 200')
    except IOError as e:
        version = 2
    with open(debugfs_init_regions, 'r') as f:
        if f.read().strip() == '42 100 200':
            version = 1
        else:
            version = 2

    # Restore previous values
    try:
        with open(debugfs_target_ids, 'w') as f:
            f.write(orig_target_ids)
        with open(debugfs_init_regions, 'w') as f:
            f.write(orig_init_regions)
    except IOError:
        # Previous value might be invalid now (e.g., process terminated)
        pass
    return version