ci: add ci example test

examples/system/deep_sleep_wake_stub/example_test.py

@@ -0,0 +1,32 @@
+from __future__ import unicode_literals
+
+import time
+
+import tiny_test_fw
+import ttfw_idf
+
+try:
+    import typing  # noqa: F401 # pylint: disable=unused-import
+except ImportError:
+    pass
+
+
+@ttfw_idf.idf_example_test(env_tag='Example_GENERIC', target=['esp32', 'esp32s2', 'esp32c3', 'esp32s3'])
+def test_deep_sleep_wake_stub(env, extra_data):  # type: (tiny_test_fw.Env, typing.Any) -> None
+    dut = env.get_dut('deep_sleep', 'examples/system/deep_sleep_wake_stub')
+    dut.start_app()
+
+    dut.expect('Enabling timer wakeup, 10s', timeout=30)
+    dut.expect('Entering deep sleep', timeout=10)
+
+    start_sleep = time.time()
+    print('Waiting for wakeup...')
+    dut.expect('wake stub: going to deep sleep')
+
+    sleep_time = time.time() - start_sleep
+    print('Host measured sleep time at {:.2f}s'.format(sleep_time))
+    assert 8 < sleep_time < 12  # note: high tolerance as measuring time on the host may have some timing skew
+
+
+if __name__ == '__main__':
+    test_deep_sleep_wake_stub()