CI: migrated system example tests to pytest-embedded framework

examples/system/pthread/pytest_pthread.py

@@ -0,0 +1,18 @@
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: CC0-1.0
+
+import pytest
+from pytest_embedded import Dut
+
+
+@pytest.mark.supported_targets
+@pytest.mark.generic
+def test_pthread(dut: Dut) -> None:
+
+    # Note: this test doesn't really confirm anything, except that threads are created
+    # and stdout is not being corrupted by multiple threads printing ot it.
+    dut.expect(r'Created thread 0x[\da-f]+')
+    dut.expect(r'Created larger stack thread 0x[\da-f]+')
+    dut.expect(r'Threads have exited')
+    dut.expect(r'Created thread 0x[\da-f]+ with new default config')
+    dut.expect('Thread has exited')