Re: [Buildroot] [PATCH 3/3] support/testing: mdnsd: new runtime test

In reply of:
> Boot an armv5 image running the mdnsd responder alongside the mquery
> client, then check that service discovery works: mquery browses for the
> bundled _http._tcp service and mdnsd, on the same host, answers over the
> loopback of the eth0 multicast group.
> 
> Signed-off-by: Joachim Wiberg <[email protected]>

Applied to 2026.05.x & 2025.02.x. Thanks

> ---
>  DEVELOPERS                                  |  1 +
>  support/testing/tests/package/test_mdnsd.py | 38 +++++++++++++++++++++
>  2 files changed, 39 insertions(+)
>  create mode 100644 support/testing/tests/package/test_mdnsd.py
> 
> diff --git a/DEVELOPERS b/DEVELOPERS
> index fdfab8b489..82300c4a18 100644
> --- a/DEVELOPERS
> +++ b/DEVELOPERS
> @@ -1664,6 +1664,7 @@ F:	package/ssdp-responder/
>  F:	package/sysklogd/
>  F:	package/uredir/
>  F:	package/watchdogd/
> +F:	support/testing/tests/package/test_mdnsd.py
>  
>  N:	Jochen Baltes <[email protected]>
>  F:	package/altera-stapl
> diff --git a/support/testing/tests/package/test_mdnsd.py b/support/testing/tests/package/test_mdnsd.py
> new file mode 100644
> index 0000000000..43057d4351
> --- /dev/null
> +++ b/support/testing/tests/package/test_mdnsd.py
> @@ -0,0 +1,38 @@
> +import os
> +
> +import infra.basetest
> +
> +
> +class TestMdnsd(infra.basetest.BRTest):
> +    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
> +        """
> +        BR2_PACKAGE_MDNSD=y
> +        BR2_PACKAGE_MDNSD_MQUERY=y
> +        BR2_PACKAGE_MDNSD_HTTP_SERVICE=y
> +        BR2_SYSTEM_DHCP="eth0"
> +        BR2_TARGET_ROOTFS_CPIO=y
> +        # BR2_TARGET_ROOTFS_TAR is not set
> +        """
> +
> +    def test_run(self):
> +        img = os.path.join(self.builddir, "images", "rootfs.cpio")
> +        self.emulator.boot(arch="armv5",
> +                           kernel="builtin",
> +                           options=["-initrd", img,
> +                                    "-net", "nic,model=rtl8139",
> +                                    "-net", "user"])
> +        self.emulator.login()
> +
> +        # The responder is started at boot by /etc/init.d/S50mdnsd and
> +        # advertises the bundled _http._tcp service from /etc/mdns.d/.
> +        self.assertRunOk("pidof mdnsd")
> +
> +        # mdnsd only answers on multicast capable interfaces that are
> +        # up, so wait for eth0 to get its DHCP address before querying.
> +        cmd = "while ! ifconfig eth0 | grep -q 'inet addr'; do sleep 1; done"
> +        self.assertRunOk(cmd, timeout=30)
> +
> +        # mquery sends a multicast query for the advertised service;
> +        # output is one "+ NAME (IP)" line per instance
> +        cmd = "mquery -T _http._tcp |grep -F buildroot._http._tcp.local"
> +        self.assertRunOk(cmd, timeout=30)
> -- 
> 2.43.0
> 
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