tests: lib: Add test for mpsc_pbuf

Added suite for multiple producer, single consumer packet buffer.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>

include/sys/mpsc_pbuf.h

@@ -1,4 +1,3 @@
-
 /*
  * Copyright (c) 2021 Nordic Semiconductor ASA
  *
@@ -28,8 +27,8 @@ extern "C" {
  * Multi producer, single consumer packet buffer allows to allocate variable
  * length consecutive space for storing a packet. When space is allocated
  * it can be filled by the user (except for the first 2 bits) and when packet
- * is ready it is commited. It is allowed to allocate another packet before
- * commiting the previous one.
+ * is ready it is committed. It is allowed to allocate another packet before
+ * committing the previous one.
  *
  * If buffer is full and packet cannot be allocated then null is returned unless
  * overwrite mode is selected. In that mode, oldest entry are dropped (user is
@@ -43,7 +42,8 @@ extern "C" {
  */
 
 /**@defgroup MPSC_PBUF_FLAGS MPSC packet buffer flags
- * @{ */
+ * @{
+ */
 
 /** @brief Flag indicating that buffer size is power of 2.
  *

lib/os/mpsc_pbuf.c

@@ -434,4 +434,3 @@ bool mpsc_pbuf_is_pending(struct mpsc_pbuf_buffer *buffer)
 
 	return a ? true : false;
 }
-

tests/lib/mpsc_pbuf/CMakeLists.txt

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.13.1)
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(mpsc_pbuf)
+
+FILE(GLOB app_sources src/*.c)
+target_sources(app PRIVATE ${app_sources})

tests/lib/mpsc_pbuf/prj.conf

@@ -0,0 +1,3 @@
+CONFIG_ZTEST=y
+CONFIG_MPSC_PBUF=y
+CONFIG_TEST_RANDOM_GENERATOR=y

tests/lib/mpsc_pbuf/testcase.yaml

@@ -0,0 +1,7 @@
+tests:
+  lib.mpsc_pbuf:
+    tags: mpsc_pbuf
+    platform_allow: >
+      qemu_arc_em qemu_arc_hs qemu_cortex_a53 qemu_cortex_m0 qemu_cortex_m3
+      qemu_cortex_r5 qemu_leon3 qemu_nios2 qemu_riscv32 qemu_riscv64 qemu_x86
+      qemu_x86_64 qemu_xtensa