How to use the briefcase.platforms.macOS.dmg.macOSDmgPackageCommand function in briefcase

def test_app_icon_missing(first_app_config, tmp_path):
    "If the app icon is missing, it is ignored as an installer icon."
    # Configure an app icon.
    first_app_config.icon = 'resources/icon'

    command = macOSDmgPackageCommand(base_path=tmp_path)
    command.subprocess = mock.MagicMock()

    command.select_identity = mock.MagicMock(return_value='Sekrit identity (DEADBEEF)')

    command.dmgbuild = mock.MagicMock()

    command.package_app(first_app_config)

    # There should only be a signing request for the main bundle
    command.subprocess.run.assert_called_with(
        [
            'codesign',
            '--sign', 'Sekrit identity (DEADBEEF)',
            '--entitlements', str(tmp_path / 'macOS' / 'First App' / 'Entitlements.plist'),
            '--deep', str(tmp_path / 'macOS' / 'First App' / 'First App.app'),
            '--force',

def test_build_dmg(first_app_config, tmp_path):
    "A macOS App can be packaged as a DMG"
    command = macOSDmgPackageCommand(base_path=tmp_path)
    command.subprocess = mock.MagicMock()

    command.select_identity = mock.MagicMock(return_value='Sekrit identity (DEADBEEF)')

    command.dmgbuild = mock.MagicMock()

    command.package_app(first_app_config)

    # There should only be a signing request for the main bundle
    command.subprocess.run.assert_called_with(
        [
            'codesign',
            '--sign', 'Sekrit identity (DEADBEEF)',
            '--entitlements', str(tmp_path / 'macOS' / 'First App' / 'Entitlements.plist'),
            '--deep', str(tmp_path / 'macOS' / 'First App' / 'First App.app'),
            '--force',

def test_installer_icon_missing(first_app_config, tmp_path):
    "If the installer icon doesn't exist, it is ignored"
    # Configure an installer icon.
    first_app_config.installer_icon = 'resources/installer_icon'

    command = macOSDmgPackageCommand(base_path=tmp_path)
    command.subprocess = mock.MagicMock()

    command.select_identity = mock.MagicMock(return_value='Sekrit identity (DEADBEEF)')

    command.dmgbuild = mock.MagicMock()

    command.package_app(first_app_config)

    # There should only be a signing request for the main bundle
    command.subprocess.run.assert_called_with(
        [
            'codesign',
            '--sign', 'Sekrit identity (DEADBEEF)',
            '--entitlements', str(tmp_path / 'macOS' / 'First App' / 'Entitlements.plist'),
            '--deep', str(tmp_path / 'macOS' / 'First App' / 'First App.app'),
            '--force',

def test_build_with_background_missing(first_app_config, tmp_path):
    "If the installer image is missing, it is ignored."
    # Configure a background image for the installer
    first_app_config.installer_background = 'resources/background'

    command = macOSDmgPackageCommand(base_path=tmp_path)
    command.subprocess = mock.MagicMock()

    command.select_identity = mock.MagicMock(return_value='Sekrit identity (DEADBEEF)')

    command.dmgbuild = mock.MagicMock()

    command.package_app(first_app_config)

    # There should only be a signing request for the main bundle
    command.subprocess.run.assert_called_with(
        [
            'codesign',
            '--sign', 'Sekrit identity (DEADBEEF)',
            '--entitlements', str(tmp_path / 'macOS' / 'First App' / 'Entitlements.plist'),
            '--deep', str(tmp_path / 'macOS' / 'First App' / 'First App.app'),
            '--force',

def test_build_with_background(first_app_config, tmp_path):
    "A macOS app can specify a background image for the installer."
    # Set up a background image for the installer
    first_app_config.installer_background = 'resources/background'
    (tmp_path / 'resources').mkdir(parents=True, exist_ok=True)
    with (tmp_path / 'resources' / 'background.png').open('w') as f:
        f.write('image')

    command = macOSDmgPackageCommand(base_path=tmp_path)
    command.subprocess = mock.MagicMock()

    command.select_identity = mock.MagicMock(return_value='Sekrit identity (DEADBEEF)')

    command.dmgbuild = mock.MagicMock()

    command.package_app(first_app_config)

    # There should only be a signing request for the main bundle
    command.subprocess.run.assert_called_with(
        [
            'codesign',
            '--sign', 'Sekrit identity (DEADBEEF)',
            '--entitlements', str(tmp_path / 'macOS' / 'First App' / 'Entitlements.plist'),
            '--deep', str(tmp_path / 'macOS' / 'First App' / 'First App.app'),
            '--force',

def test_app_icon(first_app_config, tmp_path):
    "If a macOS App doesn't specify an installer icon, the app icon will be used."
    # Set up an app icon.
    first_app_config.icon = 'resources/icon'
    (tmp_path / 'resources').mkdir(parents=True, exist_ok=True)
    with (tmp_path / 'resources' / 'icon.icns').open('w') as f:
        f.write('icon')

    command = macOSDmgPackageCommand(base_path=tmp_path)
    command.subprocess = mock.MagicMock()

    command.select_identity = mock.MagicMock(return_value='Sekrit identity (DEADBEEF)')

    command.dmgbuild = mock.MagicMock()

    command.package_app(first_app_config)

    # There should only be a signing request for the main bundle
    command.subprocess.run.assert_called_with(
        [
            'codesign',
            '--sign', 'Sekrit identity (DEADBEEF)',
            '--entitlements', str(tmp_path / 'macOS' / 'First App' / 'Entitlements.plist'),
            '--deep', str(tmp_path / 'macOS' / 'First App' / 'First App.app'),
            '--force',

def test_installer_icon(first_app_config, tmp_path):
    "A macOS App can specify an icon for the installer"
    # Set up an installer icon.
    first_app_config.installer_icon = 'resources/installer_icon'
    (tmp_path / 'resources').mkdir(parents=True, exist_ok=True)
    with (tmp_path / 'resources' / 'installer_icon.icns').open('w') as f:
        f.write('icon')

    command = macOSDmgPackageCommand(base_path=tmp_path)
    command.subprocess = mock.MagicMock()

    command.select_identity = mock.MagicMock(return_value='Sekrit identity (DEADBEEF)')

    command.dmgbuild = mock.MagicMock()

    command.package_app(first_app_config)

    # There should only be a signing request for the main bundle
    command.subprocess.run.assert_called_with(
        [
            'codesign',
            '--sign', 'Sekrit identity (DEADBEEF)',
            '--entitlements', str(tmp_path / 'macOS' / 'First App' / 'Entitlements.plist'),
            '--deep', str(tmp_path / 'macOS' / 'First App' / 'First App.app'),
            '--force',