事实证明，答案非常简单.我只需要从测试覆盖率生成中排除路由文件:

As it turned out, the answer was fairly straightforward. I just needed to exclude the routes file from the test coverage generation:

<filter>
    <whitelist processUncoveredFilesFromWhitelist="true">
        <directory suffix=".php">./src</directory>
        <exclude>
            <directory suffix=".php">./src/database</directory>
            <file>./src/routes.php</file>
        </exclude>
    </whitelist>
</filter>