[nrf fromtree] tests: subsys: logging: Test with CONFIG_LOG disabled

tests/subsys/logging/log_disabled/CMakeLists.txt

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+#
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+
+project(log_disable)
+
+target_sources(app PRIVATE src/main.c)

tests/subsys/logging/log_disabled/prj.conf

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+CONFIG_PRINTK=y
+CONFIG_LOG=n

tests/subsys/logging/log_disabled/src/main.c

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+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/logging/log.h>
+
+LOG_MODULE_REGISTER(app, LOG_LEVEL_DBG);
+
+int main(void)
+{
+	uint8_t data[] = {0, 1, 2, 3};
+	uint32_t dummy_1 = 1;
+	uint32_t dummy_2 = 2;
+	uint32_t dummy_3 = 3;
+	uint32_t dummy_4 = 4;
+	uint32_t dummy_5 = 5;
+	uint32_t dummy_6 = 6;
+	uint32_t dummy_7 = 7;
+
+	LOG_DBG("Debug log %u", dummy_1);
+	LOG_INF("Info log %u", dummy_2);
+	LOG_WRN("Warning log %u", dummy_3);
+	LOG_ERR("Error log %u", dummy_4);
+
+	for (int i = 0; i < 10; i++) {
+		LOG_WRN_ONCE("Warning on the first execution only %u", dummy_5);
+	}
+
+	LOG_PRINTK("Printk log %u\n", dummy_6);
+
+	LOG_RAW("Raw log %u\n", dummy_7);
+
+	LOG_HEXDUMP_DBG(data, sizeof(data), "Debug data");
+	LOG_HEXDUMP_INF(data, sizeof(data), "Info data");
+	LOG_HEXDUMP_WRN(data, sizeof(data), "Warning data");
+	LOG_HEXDUMP_ERR(data, sizeof(data), "Error data");
+
+	printk("All done.\n");
+	return 0;
+}

tests/subsys/logging/log_disabled/testcase.yaml

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+common:
+  tags:
+    - logging
+  build_only: true
+  platform_allow:
+    - native_sim
+  integration_platforms:
+    - native_sim
+
+tests:
+  logging.log_disable:
+    harness: console
+    harness_config:
+      type: one_line
+      regex:
+        - "All done."