tests: Add CTest base harness testing

Add a testcase to validate the added CTest twister harness.

Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>

tests/ctest/base/CMakeLists.txt

@@ -0,0 +1,26 @@
+# Copyright (c) 2024 Basalte bv
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+
+project(ctest_base)
+
+target_sources(app PRIVATE ${ZEPHYR_BASE}/misc/empty_file.c)
+
+enable_testing()
+include(CTest)
+
+add_test(NAME exe_help COMMAND ${CMAKE_BINARY_DIR}/zephyr/zephyr.exe --help)
+add_test(NAME exe_run COMMAND ${CMAKE_BINARY_DIR}/zephyr/zephyr.exe -stop_at=3 -no-rt)
+set_property(
+  TEST exe_run
+  PROPERTY PASS_REGULAR_EXPRESSION "Stopped at [0-9.]+s"
+)
+
+# A test that always succeeds
+add_test(NAME success COMMAND ${CMAKE_COMMAND} -E true)
+
+# A test that is expected to fail
+add_test(NAME failure COMMAND ${CMAKE_COMMAND} -E false)
+set_property(TEST failure PROPERTY WILL_FAIL true)

tests/ctest/base/prj.conf

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+# Intentionally empty

tests/ctest/base/testcase.yaml

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+common:
+  tags:
+    - test_framework
+  platform_allow:
+    - native_sim
+  integration_platforms:
+    - native_sim
+  harness: ctest
+tests:
+  testing.ctest.base: {}