support/testing: add iputils runtime test

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit eda78597eb4edef4f8cd842bbe3eb110fb2fb1b0)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

DEVELOPERS

@@ -1812,6 +1812,7 @@ F:	support/testing/tests/package/test_iperf.py
 F:	support/testing/tests/package/test_iperf3.py
 F:	support/testing/tests/package/test_iproute2.py
 F:	support/testing/tests/package/test_iptables.py
+F:	support/testing/tests/package/test_iputils.py
 F:	support/testing/tests/package/test_jailhouse.py
 F:	support/testing/tests/package/test_jq.py
 F:	support/testing/tests/package/test_jq/

support/testing/tests/package/test_iputils.py

@@ -0,0 +1,48 @@
+import os
+
+import infra.basetest
+
+
+class TestIputils(infra.basetest.BRTest):
+    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
+        """
+        BR2_PACKAGE_IPUTILS=y
+        BR2_SYSTEM_DHCP="eth0"
+        BR2_TARGET_ROOTFS_CPIO=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        """
+
+    def test_run(self):
+        cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
+        self.emulator.boot(arch="armv7",
+                           kernel="builtin",
+                           options=["-initrd", cpio_file])
+        self.emulator.login()
+
+        # We check all the main programs of iputils can execute and
+        # report their version. Note the "-V" option is not accepted
+        # and fails if the "ping" applet of BusyBox is used instead.
+        iputils_progs = ["arping", "clockdiff", "ping", "tracepath"]
+        for prog in iputils_progs:
+            self.assertRunOk(f"{prog} -V")
+
+        # Qemu host IP, See:
+        # https://wiki.qemu.org/Documentation/Networking#User_Networking_(SLIRP)
+        qemu_host = "10.0.2.2"
+
+        # We test the "arping" program, with 3 pings.
+        self.assertRunOk(f"arping -c 3 {qemu_host}", timeout=10)
+
+        # We test the "ping" program. We use the option "-D" which
+        # shows a timestamp and is also not supported by the "ping"
+        # BusyBox applet.
+        self.assertRunOk(f"ping -D -c 3 {qemu_host}", timeout=10)
+
+        # We test the "tracepath" program. We set the max hops to 2,
+        # since there is no intermediate routers.
+        self.assertRunOk(f"tracepath -m 2 {qemu_host}", timeout=10)
+
+        # We test the "clockdiff" program. We cannot use the Qemu host
+        # IP for this program as the ICMP TIMESTAMP is used and is not
+        # responded. We use the local host instead.
+        self.assertRunOk("clockdiff 127.0.0.1", timeout=10)