namespace MoShiro.Measurement.Tests;

public sealed class PlatformDetectorTests
{
    [Theory]
    [InlineData("PRETTY_NAME=\"Debian GNU/Linux 12 (bookworm)\"|NAME=\"Debian GNU/Linux\"|VERSION_ID=\"12\"|ID=debian", "Debian 12")]
    [InlineData("NAME=\"OpenWrt\"|VERSION_ID=\"24.10.0\"|ID=openwrt", "OpenWrt 24.10")]
    [InlineData("NAME=\"Alpine Linux\"|ID=alpine|VERSION_ID=3.22.1", "Alpine Linux 3.22")]
    [InlineData("NAME=\"Ubuntu\"|VERSION_ID=\"24.04\"", "Ubuntu 24.04")]
    [InlineData("NAME=\"Fedora Linux\"|VERSION_ID=44|HOSTNAME=private-router|KERNEL_VERSION=6.18.1|PRETTY_NAME=\"Fedora Linux 44 (Workstation Edition)\"", "Fedora Linux 44")]
    [InlineData("ID=arch", "arch")]
    [InlineData("", "Linux")]
    public void LinuxName_IsTheDistroAndItsMajorMinorVersion(string osRelease, string expected)
    {
        Assert.Equal(expected, PlatformDetector.LinuxName(osRelease.Split('|', StringSplitOptions.RemoveEmptyEntries)));
    }

    [Fact]
    public void Detect_ReportsOnlyCoarseInformation()
    {
        var platform = PlatformDetector.Detect();
        Assert.Contains(platform.Os, new[] { "linux", "windows", "macos", "other" });
        Assert.Contains(platform.Arch, new[] { "x64", "arm64", "arm", "x86" });
        // 没有主机名、内核版本：名字很短，也不含小数点以外的版本细节
        Assert.True((platform.Name ?? string.Empty).Length < 40);
        // 主机名可能恰好就是发行版名（例如 fedora），不能用字符串重合判断泄漏。
        // 发行版字段的白名单和版本截断由上面的固定输入覆盖。
    }
}