tests: cpp: add some basic Device Tree coverage

This provides C++ coverage for Z_DEVICE_INIT() fixed in the previous commit and for some other Device Tree macros. Signed-off-by: Marc Herbert <[email protected]>
zephyrproject-rtos · Mar 20, 2024 · a19094b · a19094b
1 parent 4cef8c4
commit a19094b
Show file tree

Hide file tree

Showing 2 changed files with 24 additions and 0 deletions.
diff --git a/tests/lib/cpp/cxx/app.overlay b/tests/lib/cpp/cxx/app.overlay
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2020 Nordic Semiconductor ASA
+ * Copyright (c) 2020 Intel Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Application overlay for creating a fake device instance we can use to
+ * test. Tiny subset of tests/kernel/device/app.overlay.
+ */
+
+/ {
+	fakedomain_0: fakedomain_0 {
+		compatible = "fakedomain";
+		status = "okay";
+	};
+};
diff --git a/tests/lib/cpp/cxx/src/main.cpp b/tests/lib/cpp/cxx/src/main.cpp
@@ -136,3 +136,11 @@ ZTEST(cxx_tests, test_new_delete)
 	delete test_foo;
 }
 ZTEST_SUITE(cxx_tests, NULL, NULL, NULL, NULL, NULL);
+
+/*
+ * Unused macros are parsed but not really compiled. Even with all the
+ * NULL arguments this line adds a lot of additional coverage.
+ *
+ * DEVICE_DEFINE(dev_id, name, * init_fn, pm, data, config, level, prio, api)
+ */
+DEVICE_DT_DEFINE(DT_NODELABEL(fakedomain_0), NULL, NULL, NULL, NULL, POST_KERNEL, 33, NULL);