Merge pull request #2194 from aliang123/1823707

blockdev_commit_stress:commit during stress test

qemu/tests/blockdev_commit_stress.py

+from virttest import utils_test
+
+from provider.blockdev_commit_base import BlockDevCommitTest
+
+
+class BlockdevCommitStress(BlockDevCommitTest):
+    def run_stress_test(self):
+        self.stress_test = utils_test.VMStress(self.main_vm, "stress",
+                                               self.params)
+        self.stress_test.load_stress_tool()
+
+    def stress_running_check(self):
+        if not self.stress_test.app_running():
+            self.test.fail("Stress app does not running as expected")
+
+    def pre_test(self):
+        if not self.main_vm.is_alive():
+            self.main_vm.create()
+        self.main_vm.verify_alive()
+        for device in self.params["device_tag"].split():
+            device_params = self.params.object_params(device)
+            snapshot_tags = device_params["snapshot_tags"].split()
+            self.device_node = self.get_node_name(device)
+            self.configure_disk(device)
+            self.run_stress_test()
+            self.prepare_snapshot_file(snapshot_tags)
+            self.create_snapshots(snapshot_tags, device)
+
+    def run_test(self):
+        self.pre_test()
+        try:
+            self.commit_snapshots()
+            self.stress_running_check()
+            self.verify_data_file()
+        finally:
+            self.post_test()
+
+
+def run(test, params, env):
+    """
+    Block commit base Test
+
+    1. boot guest with system disk
+    2. run stress test in guest
+    3. create 4 snapshots and save file in each snapshot
+    4. commit snapshot 3 to base
+    5. verify if stress test still running and verify file's md5 after commit
+    """
+
+    block_test = BlockdevCommitStress(test, params, env)
+    block_test.run_test()

qemu/tests/cfg/blockdev_commit_stress.cfg

+- blockdev_commit_stress:
+    type = blockdev_commit_stress
+    virt_test_type = qemu
+    only Linux
+    start_vm = yes
+    kill_vm = yes
+    storage_pools = default
+    storage_type_default = "directory"
+    storage_pool = default
+    snapshot_tags = sn1 sn2 sn3 sn4
+
+    image_name_sn1 = sn1
+    image_format_sn1 = qcow2
+
+    image_name_sn2 = sn2
+    image_format_sn2 = qcow2
+
+    image_name_sn3 = sn3
+    image_format_sn3 = qcow2
+
+    image_name_sn4 = sn4
+    image_format_sn4 = qcow2
+
+    device_tag = "image1"
+    rebase_mode = unsafe
+    mount_point = "/tmp"
+    qemu_force_use_drive_expression = no