esp-idf/examples/system/gcov/example_test.py

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from __future__ import unicode_literals
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import os
import time
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import ttfw_idf
from ttfw_idf import Utility
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@ttfw_idf.idf_example_test(env_tag='test_jtag_arm')
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def test_examples_gcov(env, extra_data):
rel_project_path = os.path.join('examples', 'system', 'gcov')
dut = env.get_dut('gcov', rel_project_path)
idf_path = dut.app.get_sdk_path()
proj_path = os.path.join(idf_path, rel_project_path)
openocd_cmd_log = os.path.join(proj_path, 'openocd_cmd.log')
with ttfw_idf.OCDBackend(os.path.join(proj_path, 'openocd.log'), dut.app.target) as oocd:
dut.start_app()
def expect_counter_output(loop, timeout=10):
dut.expect_all('blink_dummy_func: Counter = {}'.format(loop),
'some_dummy_func: Counter = {}'.format(loop * 2),
timeout=timeout)
expect_counter_output(0, timeout=20)
dut.expect('Ready to dump GCOV data...', timeout=5)
def dump_coverage(cmd):
try:
response = oocd.cmd_exec(cmd)
with open(openocd_cmd_log, 'a') as f:
f.write(response)
assert all(x in response for x in ['Targets connected.',
'gcov_example_main.c.gcda',
'gcov_example_func.c.gcda',
'some_funcs.c.gcda',
'Targets disconnected.',
])
except AssertionError:
# Print what is happening with DUT. Limit the size if it is in loop and generating output.
Utility.console_log(dut.read(size=1000))
raise
# Test two hard-coded dumps
dump_coverage('esp gcov dump')
dut.expect('GCOV data have been dumped.', timeout=5)
expect_counter_output(1)
dut.expect('Ready to dump GCOV data...', timeout=5)
dump_coverage('esp gcov dump')
dut.expect('GCOV data have been dumped.', timeout=5)
for i in range(2, 6):
expect_counter_output(i)
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for _ in range(3):
time.sleep(1)
# Test instant run-time dump
dump_coverage('esp gcov')
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if __name__ == '__main__':
test_examples_gcov()