def METHOD_NAME(self):
    ctx = {
        "langpack-creator": "Suomennosprojekti",
        "langpack-contributors": "",
    }
    manifest = langpack_manifest.create_webmanifest(
        "fi",
        "57.0.1",
        "57.0",
        "57.0.*",
        "Firefox",
        "/var/vcs/l10n-central",
        "langpack-fi@firefox.mozilla.og",
        ctx,
        {},
    )
    data = json.loads(manifest)
    self.assertEqual(data["name"], "Language: Suomi (Finnish)")
    self.assertEqual(
        data["description"], "Firefox Language Pack for Suomi (fi) – Finnish"
    )
    self.assertEqual(data["author"], "Suomennosprojekti")