Test the newly added 'trace wipe' command.
Signed-off-by: Jerome Forissier jerome.forissier@linaro.org Acked-by: Ilias Apalodimas ilias.apalodimas@linaro.org --- test/py/tests/test_trace.py | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+)
diff --git a/test/py/tests/test_trace.py b/test/py/tests/test_trace.py index ec1e624722c..44239da5280 100644 --- a/test/py/tests/test_trace.py +++ b/test/py/tests/test_trace.py @@ -70,6 +70,32 @@ def collect_trace(cons): return fname, int(dm_f_time[0])
+def wipe_and_collect_trace(cons): + """Pause and wipe traces, return the number of calls (should be zero) + + Args: + cons (ConsoleBase): U-Boot console + + Returns: + int: the number of traced function calls reported by 'trace stats' + """ + cons.run_command('trace pause') + cons.run_command('trace wipe') + out = cons.run_command('trace stats') + + # The output is something like this: + # 117,221 function sites + # 0 function calls + # 0 untracked function calls + # 0 traced function calls + + # Get a dict of values from the output + lines = [line.split(maxsplit=1) for line in out.splitlines() if line] + vals = {key: val.replace(',', '') for val, key in lines} + + return int(vals['traced function calls']) + + def check_function(cons, fname, proftool, map_fname, trace_dat): """Check that the 'function' output works
@@ -304,3 +330,7 @@ def test_trace(u_boot_console): # This allows for CI being slow to run diff = abs(fg_time - dm_f_time) assert diff / dm_f_time < 0.3 + + # Check that the trace buffer can be wiped + numcalls = wipe_and_collect_trace(cons) + assert numcalls == 0