Add four test cases for "virsh uri" command

This patch adds four test cases for "virsh uri" command.

Use four cases:(1) Call virsh uri
               (2) Call virsh -c remote_uri uri
               (3) Call virsh uri with an unexpected option
               (4) Call virsh uri with libvirtd service stop

Signed-off-by: Gu Yanhua <guyanhua-fnst@cn.fujitsu.com>

client/tests/libvirt/tests/virsh_uri.py

@@ -0,0 +1,55 @@
+import logging
+from autotest_lib.client.common_lib import utils, error
+from autotest_lib.client.virt import libvirt_vm
+
+def run_virsh_uri(test, params, env):
+    """
+    Test the command virsh uri
+
+    (1) Call virsh uri
+    (2) Call virsh -c remote_uri uri
+    (3) Call virsh uri with an unexpected option
+    (4) Call virsh uri with libvirtd service stop
+    """
+
+    def virsh_uri(cmd):
+        cmd_result = utils.run(cmd, ignore_status=True)
+        logging.debug("Output: %s", cmd_result.stdout.strip())
+        logging.debug("Error: %s", cmd_result.stderr.strip())
+        logging.debug("Status: %d", cmd_result.exit_status)
+        return cmd_result.exit_status, cmd_result.stdout.strip()
+
+    # Prepare libvirtd service
+    check_libvirtd = params.has_key("libvirtd")
+    if check_libvirtd:
+        libvirtd = params.get("libvirtd")
+        if libvirtd == "off":
+            libvirt_vm.service_libvirtd_control("stop")
+
+    # Run test case
+    option = params.get("options")
+    check_target_uri = params.has_key("target_uri")
+    if check_target_uri:
+        target_uri = params.get("target_uri")
+        cmd = "virsh -c %s uri" % target_uri
+    else:
+        cmd = "virsh uri %s" % option
+
+    status, uri_test = virsh_uri(cmd)
+
+    # Recover libvirtd service start
+    if libvirtd == "off":
+        libvirt_vm.service_libvirtd_control("start")
+
+    # Check status_error
+    status_error = params.get("status_error")
+    if status_error == "yes":
+        if status == 0:
+            raise error.TestFail("Command 'virsh uri %s' succeeded "
+                                 "(incorrect command)" % option)
+    elif status_error == "no":
+        if cmp(target_uri, uri_test) != 0:
+            raise error.TestFail("Virsh cmd gives wrong uri.")
+        if status != 0:
+            raise error.TestFail("Command 'virsh uri %s' failed "
+                                 "(correct command)" % option)