def METHOD_NAME():
    package1 = Requirement('test-package[ext1]>=1.1.1; extra == "group1"')
    assert format_requirement_string(package1) == 'Missing test-package[ext1]>=1.1.1; extra == "group1"'
    package2 = Requirement('test-package>=1.1.1; extra == "group1" or extra == "group2" or extra == "group3"')
    assert format_requirement_string(
        package2) == 'Missing test-package>=1.1.1; extra == "group1" or "group2" or "group3"'
    package3 = Requirement('test-package>=1.1.1')
    assert format_requirement_string(package3) == 'Missing test-package>=1.1.1'