How to use the briefcase.config.AppConfig function in briefcase

def test_module_name(name, module_name):
    config = AppConfig(
        name=name,
        version="1.2.3",
        bundle="org.beeware",
        description="A simple app",
        sources=['src/' + module_name]
    )

    assert config.module_name == module_name

def test_valid_app_version():
    try:
        AppConfig(
            name="myapp",
            version="1.2.3",
            bundle="org.beeware",
            description="A simple app",
            sources=['src/myapp']
        )
    except BriefcaseConfigError:
        pytest.fail('1.2.3 should be a valid version number')

def test_minimal_AppConfig():
    "A simple config can be defined"
    config = AppConfig(
        name="myapp",
        version="1.2.3",
        bundle="org.beeware",
        description="A simple app",
        sources=['src/myapp'],
    )

    # The basic properties have been set.
    assert config.name == "myapp"
    assert config.version == '1.2.3'
    assert config.bundle == 'org.beeware'
    assert config.description == 'A simple app'
    assert config.requires is None

    # Derived properties have been set.
    assert config.formal_name == 'myapp'

def test_no_source_for_app():
    with pytest.raises(BriefcaseConfigError, match=r" does not include a package named 'my_app'\."):
        AppConfig(
            name='my-app',
            version="1.2.3",
            bundle="org.beeware",
            description="A simple app",
            sources=['src/something', 'src/other']
        )

def test_extra_attrs():
    "A config can contain attributes in addition to those required"
    config = AppConfig(
        name="myapp",
        formal_name="My App",
        version="1.2.3",
        bundle="org.beeware",
        description="A simple app",
        template='/path/to/template',
        sources=['src/myapp'],
        requires=['first', 'second', 'third'],
        document_type={
            'document': {
                'extension': 'doc',
                'description': 'A document',
            }
        },
        first="value 1",
        second=42,

def test_no_resources(create_command):
    "If the template defines no extra targets, none are installed"
    myapp = AppConfig(
        name='my-app',
        formal_name='My App',
        bundle='com.example',
        version='1.2.3',
        description='This is a simple app',
        sources=['src/my_app'],
    )

    # Prime the path index with no targets
    create_command._path_index = {myapp: {}}

    install_image = mock.MagicMock()
    create_command.install_image = install_image

    # Install app resources
    create_command.install_app_resources(myapp)

def test_icon_target(create_command, tmp_path):
    "If the template defines an icon target, it will be installed"
    myapp = AppConfig(
        name='my-app',
        formal_name='My App',
        bundle='com.example',
        version='1.2.3',
        description='This is a simple app',
        sources=['src/my_app'],
        icon='images/icon'
    )

    # Prime the path index with 2 icon targets
    create_command._path_index = {
        myapp: {
            'icon': {
                '10': 'path/to/icon-10.png',
                '20': 'path/to/icon-20.png',
            }

def test_valid_app_name(name):
    try:
        AppConfig(
            name=name,
            version="1.2.3",
            bundle="org.beeware",
            description="A simple app",
            sources=['src/' + name.replace('-', '_')]
        )
    except BriefcaseConfigError:
        pytest.fail('{name} should be valid'.format(name=name))

def test_invalid_app_name(name):
    with pytest.raises(BriefcaseConfigError, match=r"is not a valid app name\."):
        AppConfig(
            name=name,
            version="1.2.3",
            bundle="org.beeware",
            description="A simple app",
            sources=['src/invalid']
        )

def test_splash_target(create_command, tmp_path):
    "If the template defines an splash target, it will be installed"
    myapp = AppConfig(
        name='my-app',
        formal_name='My App',
        bundle='com.example',
        version='1.2.3',
        description='This is a simple app',
        sources=['src/my_app'],
        splash='images/splash'
    )

    # Prime the path index with 2 splash targets
    create_command._path_index = {
        myapp: {
            'splash': {
                '10x20': 'path/to/splash-10x20.png',
                '20x30': 'path/to/splash-20x30.png',
            }