Add a short stress test for start/stop

unit-tests/live/frames/test-pipeline-start-stop.py

@@ -0,0 +1,41 @@
+# License: Apache 2.0. See LICENSE file in root directory.
+# Copyright(c) 2023 Intel Corporation. All Rights Reserved.
+
+# test:device D400*
+
+import pyrealsense2 as rs
+from rspy.stopwatch import Stopwatch
+from rspy import test, log
+import time
+import platform
+
+
+# Start depth + color streams and measure the time from stream opened until first frame arrived using pipeline API.
+# Verify that the time do not exceeds the maximum time allowed
+# Note - Using Windows Media Foundation to handle power management between USB actions take time (~27 ms)
+
+
+# Set maximum delay for first frame according to product line
+dev = test.find_first_device_or_exit()
+
+def verify_frame_received(config):
+    pipe = rs.pipeline()
+    start_call_stopwatch = Stopwatch()
+    pipe.start(config)
+    f = pipe.wait_for_frames()
+    delay = start_call_stopwatch.get_elapsed()
+    log.out("After ", delay, " [sec] got first frame of ", f)
+    pipe.stop()
+
+
+################################################################################################
+test.start("Testing pipeline start/stop stress test")
+for i in range(10):
+    log.out("starting iteration #", i, "/", 10)
+    cfg = rs.config()
+    cfg.enable_all_streams()
+    verify_frame_received(cfg)
+test.finish()
+
+################################################################################################
+test.print_results_and_exit()