def test_default_options_prefix_dependent_defaults(self):
        '''
        Tests that setting a prefix in default_options in project() sets prefix
        dependent defaults for other options, and that those defaults can
        be overridden in default_options or by the command line.
        '''
        testdir = os.path.join(self.common_test_dir, '163 default options prefix dependent defaults')
        expected = {
            '':
            {'prefix':         '/usr',
             'sysconfdir':     '/etc',
             'localstatedir':  '/var',
             'sharedstatedir': '/sharedstate'},
            '--prefix=/usr':
            {'prefix':         '/usr',
             'sysconfdir':     '/etc',
             'localstatedir':  '/var',
             'sharedstatedir': '/sharedstate'},

            '--sharedstatedir=/var/state':
            {'prefix':         '/usr',
             'sysconfdir':     '/etc',
             'localstatedir':  '/var',
             'sharedstatedir': '/var/state'},

            '--sharedstatedir=/var/state --prefix=/usr --sysconfdir=sysconf':
            {'prefix':         '/usr',
             'sysconfdir':     'sysconf',
             'localstatedir':  '/var',
             'sharedstatedir': '/var/state'},
        }
        for argument_string, expected_values in expected.items():
            self.init(testdir, extra_args=argument_string.split(), default_args=False)
            opts = self.introspect('--buildoptions')
            for opt in opts:
                name = opt['name']
                value = opt['value']
                if name in expected_values:
                    self.assertEqual(value, expected_values[name], f'For option {name}, Meson arg: {argument_string}')
            self.wipe()

        Tests that setting a prefix in default_options in project() sets prefix
        dependent defaults for other options, and that those defaults can
        be overridden in default_options or by the command line.
        
unittests/allplatformstests.py