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tests: kernel: added memory pool configuration options test

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TestPurpose: verify memory pool configuration options.
All TESTPOINTs extracted from kernel documentation.
https://www.zephyrproject.org/doc/kernel/memory/pools.html#configuration-options

Jira: ZEP-1210

Change-Id: Ia5379aabd60e490c4566def21eda600c4c1b08dd
Signed-off-by: Sharron LIU <sharron.liu@intel.com>
This commit is contained in:
Sharron LIU 2016-12-28 11:38:32 +08:00 • committed by Anas Nashif
commit 6ec8c6ef14
8 changed files with 211 additions and 0 deletions
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4
tests/kernel/mem_pool/test_mpool_options/Makefile Normal file
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BOARD ?= qemu_x86
CONF_FILE ?= prj_split_defrag.conf
include ${ZEPHYR_BASE}/Makefile.test

2
tests/kernel/mem_pool/test_mpool_options/prj_defrag_split.conf Normal file
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CONFIG_ZTEST=y
CONFIG_MEM_POOL_DEFRAG_BEFORE_SPLIT=y

2
tests/kernel/mem_pool/test_mpool_options/prj_split_defrag.conf Normal file
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CONFIG_ZTEST=y
CONFIG_MEM_POOL_SPLIT_BEFORE_DEFRAG=y

2
tests/kernel/mem_pool/test_mpool_options/prj_split_only.conf Normal file
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CONFIG_ZTEST=y
CONFIG_MEM_POOL_SPLIT_ONLY=y

3
tests/kernel/mem_pool/test_mpool_options/src/Makefile Normal file
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include $(ZEPHYR_BASE)/tests/Makefile.test
obj-y = main.o test_mpool_options.o

27
tests/kernel/mem_pool/test_mpool_options/src/main.c Normal file
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/*
* Copyright (c) 2016 Intel Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <ztest.h>
extern void test_mpool_alloc_options(void);
/*test case main entry*/
void test_main(void *p1, void *p2, void *p3)
{
ztest_test_suite(test_mpool_options,
ztest_unit_test(test_mpool_alloc_options));
ztest_run_test_suite(test_mpool_options);
}

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tests/kernel/mem_pool/test_mpool_options/src/test_mpool_options.c Normal file
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/*
* Copyright (c) 2016 Intel Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @addtogroup t_mpool
* @{
* @defgroup t_mpool_options test_mpool_options
* @brief TestPurpose: verify memory pool configure options
* @details All TESTPOINTs extracted from kernel documentation
* - Configure options covered
* - CONFIG_MEM_POOL_SPLIT_BEFORE_DEFRAG
* - CONFIG_MEM_POOL_DEFRAG_BEFORE_SPLIT
* - CONFIG_MEM_POOL_SPLIT_ONLY
* @}
*/
#include <ztest.h>
#define TIMEOUT 2000
#define BLK_SIZE_MIN 4
#define BLK_SIZE_MID 16
#define BLK_SIZE_MAX 64
#define BLK_NUM_MIN 32
#define BLK_NUM_MAX 2
#define BLK_ALIGN BLK_SIZE_MIN
K_MEM_POOL_DEFINE(mpool1, BLK_SIZE_MIN, BLK_SIZE_MAX, BLK_NUM_MAX, BLK_ALIGN);
static struct k_mem_block block[BLK_NUM_MIN];
static size_t block_size[] = {
BLK_SIZE_MIN, BLK_SIZE_MIN, BLK_SIZE_MIN, BLK_SIZE_MIN,
BLK_SIZE_MID, BLK_SIZE_MID, BLK_SIZE_MID};
static int block_count = sizeof(block_size)/sizeof(size_t);
#ifdef CONFIG_MEM_POOL_SPLIT_BEFORE_DEFRAG
static void tmpool_split_before_defrag(void)
{
struct k_mem_block block_split, block_max;
/**
* TESTPOINT: This option instructs a memory pool to try splitting a
* larger unused block if an unused block of the required size is not
* available; only if no such blocks exist will the memory pool try
* merging smaller unused blocks.
* Test steps: mpool1 initial status (F for free, U for used)
* 4F 4F 4F 4F 16U 16U 16U 64F
* 1. request a mid-size (16) block
* 2. verify the previous block was splited from 64F, since
* consequently a further request to max-size block fail
*/
TC_PRINT("CONFIG_MEM_POOL_SPLIT_BEFORE_DEFRAG\n");
/* 1. request a mid-size block*/
assert_true(k_mem_pool_alloc(&mpool1, &block_split, BLK_SIZE_MID,
K_NO_WAIT) == 0, NULL);
/* 2. verify the previous block was split from the 2nd max block*/
assert_true(k_mem_pool_alloc(&mpool1, &block_max, BLK_SIZE_MAX,
TIMEOUT) == -EAGAIN, NULL);
k_mem_pool_free(&block_split);
}
#endif
#ifdef CONFIG_MEM_POOL_DEFRAG_BEFORE_SPLIT
static void tmpool_defrag_before_split(void)
{
struct k_mem_block block_defrag, block_max;
/**
* TESTPOINT: This option instructs a memory pool to try merging smaller
* unused blocks if an unused block of the required size is not
* available; only if this does not generate a sufficiently large block
* will the memory pool try splitting a larger unused block.
* Test steps: mpool1 initial status (F for free, U for used)
* 4F 4F 4F 4F 16U 16U 16U 64F
* 1. request a mid-size (16) block
* 2. verify the previous block was defrag from 4*4F, since
* consequently a further request to max-size block pass
*/
TC_PRINT("CONFIG_MEM_POOL_DEFRAG_BEFORE_SPLIT\n");
/* 1. request a mid-size block*/
assert_true(k_mem_pool_alloc(&mpool1, &block_defrag, BLK_SIZE_MID,
TIMEOUT) == 0, NULL);
/* 2. verify the previous block was defrag from block[0~3]*/
assert_true(k_mem_pool_alloc(&mpool1, &block_max, BLK_SIZE_MAX,
K_NO_WAIT) == 0, NULL);
k_mem_pool_free(&block_defrag);
k_mem_pool_free(&block_max);
}
#endif
#ifdef CONFIG_MEM_POOL_SPLIT_ONLY
static void tmpool_split_only(void)
{
struct k_mem_block block_mid[4], block_fail;
/**
* TESTPOINT: This option instructs a memory pool to try splitting a
* larger unused block if an unused block of the required size is not
* available; if no such blocks exist the block allocation operation
* fails.
* Test steps: mpool1 initial status (F for free, U for used)
* 4F 4F 4F 4F 16U 16U 16U 64F
* 1. request 4 mid-size (16) blocks, verify allocation
* ok via splitting the 64F max block
* 2. request another mid-size (16) block, verify allocation
* failed since no large blocks to split, nor the memory
* pool is configured to do defrag (merging)
*/
TC_PRINT("CONFIG_MEM_POOL_SPLIT_ONLY\n");
for (int i = 0; i < 4; i++) {
/* 1. verify allocation ok via spliting the max block*/
assert_true(k_mem_pool_alloc(&mpool1, &block_mid[i],
BLK_SIZE_MID, K_NO_WAIT) == 0, NULL);
}
/* 2. verify allocation failed since no large blocks nor defrag*/
assert_true(k_mem_pool_alloc(&mpool1, &block_fail, BLK_SIZE_MID,
TIMEOUT) == -EAGAIN, NULL);
for (int i = 0; i < 4; i++) {
k_mem_pool_free(&block_mid[i]);
}
}
#endif
/* test cases*/
void test_mpool_alloc_options(void)
{
/* allocate 7 blocks, in size 4 4 4 4 16 16 16, respectively*/
for (int i = 0; i < block_count; i++) {
assert_true(k_mem_pool_alloc(&mpool1, &block[i], block_size[i],
K_NO_WAIT) == 0, NULL);
}
/* free block [0~3]*/
for (int i = 0; i < 4; i++) {
k_mem_pool_free(&block[i]);
}
#ifdef CONFIG_MEM_POOL_SPLIT_BEFORE_DEFRAG
tmpool_split_before_defrag();
#endif
#ifdef CONFIG_MEM_POOL_DEFRAG_BEFORE_SPLIT
tmpool_defrag_before_split();
#endif
#ifdef CONFIG_MEM_POOL_SPLIT_ONLY
tmpool_split_only();
#endif
/* test case tear down*/
for (int i = 4; i < block_count; i++) {
k_mem_pool_free(&block[i]);
}
}

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tests/kernel/mem_pool/test_mpool_options/testcase.ini Normal file
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[test_mpool_split_defrag]
tags = kernel
extra_args = CONF_FILE=prj_split_defrag.conf
[test_mpool_defrag_split]
tags = kernel
extra_args = CONF_FILE=prj_defrag_split.conf
[test_mpool_split_only]
tags = kernel
extra_args = CONF_FILE=prj_split_only.conf