timer: example migrate to pytest

examples/peripherals/timer_group/pytest_timer_group.py

@@ -0,0 +1,24 @@
+# SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: CC0-1.0
+
+import pytest
+from pytest_embedded.dut import Dut
+
+
+@pytest.mark.esp32
+@pytest.mark.esp32s2
+@pytest.mark.esp32s3
+@pytest.mark.esp32c3
+@pytest.mark.generic
+def test_timer_group_example(dut: Dut):  # type: ignore
+    dut.expect(r'Init timer with auto-reload', timeout=5)
+    res = dut.expect(r'Timer auto reloaded, count value in ISR: (\d+)', timeout=5)
+    reloaded_count = res.group(1).decode('utf8')
+    assert 0 <= int(reloaded_count) < 10
+
+    alarm_increase_step = 500000
+    dut.expect(r'Init timer without auto-reload')
+    for i in range(1, 5):
+        res = dut.expect(r'Timer alarmed at (\d+)', timeout=3)
+        alarm_count = res.group(1).decode('utf8')
+        assert (i * alarm_increase_step - 10) < int(alarm_count) < (i * alarm_increase_step + 10)