How to use the ocrd.processor.base.run_processor function in ocrd

def test_no_mets_url(self):
        with self.assertRaisesRegex(Exception, 'pass mets_url to create a workspace'):
            run_processor(DummyProcessor, resolver=self.resolver)

def test_run_agent(self):
        no_agents_before = len(self.workspace.mets.agents)
        run_processor(DummyProcessor, ocrd_tool=DUMMY_TOOL, workspace=self.workspace)
        self.assertEqual(len(self.workspace.mets.agents), no_agents_before + 1, 'one more agent')
        #  print(self.workspace.mets.agents[no_agents_before])

def test_run_cli(self):
        with TemporaryDirectory() as tempdir:
            run_processor(DummyProcessor, ocrd_tool=DUMMY_TOOL, workspace=self.workspace)
            run_cli(
                'echo',
                mets_url=assets.url_of('SBB0000F29300010000/data/mets.xml'),
                resolver=Resolver(),
                workspace=None,
                page_id='page1',
                log_level='DEBUG',
                input_file_grp='INPUT',
                output_file_grp='OUTPUT',
                parameter='/path/to/param.json',
                working_dir=tempdir
            )
            run_cli(
                'echo',
                mets_url=assets.url_of('SBB0000F29300010000/data/mets.xml'),
                resolver=Resolver(),

def test_no_resolver(self):
        with self.assertRaisesRegex(Exception, 'pass a resolver to create a workspace'):
            run_processor(DummyProcessor)

def test_with_mets_url_input_files(self):
        processor = run_processor(DummyProcessor, resolver=self.resolver, mets_url=assets.url_of('SBB0000F29300010000/data/mets.xml'))
        self.assertEqual(len(processor.input_files), 35)

def test_parameter(self):
        with TemporaryDirectory() as tempdir:
            jsonpath = join(tempdir, 'params.json')
            with open(jsonpath, 'w') as f:
                f.write('{"baz": "quux"}')
            with open(jsonpath, 'r') as f:
                processor = run_processor(
                    DummyProcessor,
                    parameter=json.load(f),
                    resolver=self.resolver,
                    mets_url=assets.url_of('SBB0000F29300010000/data/mets.xml')
                )
            self.assertEqual(len(processor.input_files), 35)