readMediaSubtypeXML

    auto xmlData = `<?xml version="1.0" encoding="utf-8"?>
<mime-type xmlns="http://www.freedesktop.org/standards/shared-mime-info" type="text/markdown">
  <!--Created automatically by update-mime-database. DO NOT EDIT!-->
  <comment>Markdown document</comment>
  <comment xml:lang="ru">документ Markdown</comment>
  <sub-class-of type="text/plain"/>
  <x-unknown>Just for a test</x-unknown>
  <glob pattern="*.md"/>
  <glob pattern="*.mkd" weight="40"/>
  <glob pattern="*.markdown" case-sensitive="true"/>
  <alias type="text/x-markdown"/>
</mime-type>`;
    auto mimeType = readMediaSubtypeXML(xmlData);
    assert(mimeType.name == "text/markdown");
    assert(mimeType.displayName == "Markdown document");
    assert(mimeType.aliases == ["text/x-markdown"]);
    assert(mimeType.parents == ["text/plain"]);
    assert(mimeType.globs == [MimeGlob("*.md"), MimeGlob("*.mkd", 40), MimeGlob("*.markdown", defaultGlobWeight, true)]);

    import std.exception : assertThrown, assertNotThrown;
    auto notXml = "not xml";
    assertThrown!XMLMimeException(readMediaSubtypeXML(notXml));
    auto invalidEmpty = `<?xml version="1.0" encoding="utf-8"?>`;
    assertThrown!XMLMimeException(readMediaSubtypeXML(invalidEmpty));

    auto notNumber = `<mime-type type="text/markdown">
  <glob pattern="*.mkd" weight="not_a_number"/>
</mime-type>`;
    assertThrown!XMLMimeException(readMediaSubtypeXML(notNumber));

    auto validEmpty = `<mime-type type="text/markdown"></mime-type>`;
    assertNotThrown(readMediaSubtypeXML(validEmpty));

    auto missingName = `<mime-type></mime-type>`;
    assertThrown(readMediaSubtypeXML(missingName));

    auto noPattern = `<mime-type type="text/markdown">
  <glob pattern=""/></mime-type>`;
    assertThrown!XMLMimeException(readMediaSubtypeXML(noPattern));