qemu.tests: new case to check guest clock with syscall

Signed-off-by: NXu Tian <xutian@redhat.com>

qemu/tests/timedrift_check_with_syscall.py

+import os
+import logging
+from autotest.client.shared import error
+from virttest import aexpect
+from virttest import data_dir
+
+
+@error.context_aware
+def run_timedrift_check_with_syscall(test, params, env):
+    """
+    Time clock offset check test (only for Linux guest):
+
+    1) boot guest with '-rtc base=utc,clock=host,driftfix=slew'
+    2) build binary 'clktest' in guest
+    3) check clock offset with ./clktest
+
+    :param test: QEMU test object.
+    :param params: Dictionary with test parameters.
+    :param env: Dictionary with the test environment.
+    """
+    build_cmd = params.get("build_cmd", "gcc -lrt clktest.c -o clktest")
+    test_cmd = params.get("test_cmd", "./clktest")
+    check_timeout = int(params.get("check_timeout", "600"))
+    tmp_dir = params.get("tmp_dir", "/tmp")
+
+    vm = env.get_vm(params["main_vm"])
+    vm.verify_alive()
+    timeout = int(params.get("login_timeout", 360))
+    session = vm.wait_for_login(timeout=timeout)
+
+    src_dir = os.path.join(os.path.dirname(data_dir.get_data_dir()), "deps")
+    src_file = os.path.join(src_dir, "clktest.c")
+    dst_file = os.path.join(tmp_dir, "clktest.c")
+    error.context("transfer '%s' to guest('%s')" % (src_file, dst_file),
+                  logging.info)
+    vm.copy_files_to(src_file, tmp_dir, timeout=120)
+
+    error.context("build binary file 'clktest'", logging.info)
+    session.cmd(build_cmd)
+
+    error.context("check clock offset via `clktest`", logging.info)
+    logging.info("set check timeout to %s seconds", check_timeout)
+    try:
+        session.cmd_output(test_cmd, timeout=check_timeout)
+    except aexpect.ShellTimeoutError, msg:
+        if 'Interval is' in msg.output:
+            raise error.TestFail(msg.output)
+        pass