From d9bd2fca774a5c3499f7b3a258aa1506fdea526f Mon Sep 17 00:00:00 2001 From: Gregory Nutt Date: Wed, 1 May 2013 08:09:20 -0600 Subject: Add tests for the SMART block driver and file system. From Ken Pettit --- apps/examples/smart_test/smart_test.c | 373 ++++++++++++++++++++++++++++++++++ 1 file changed, 373 insertions(+) create mode 100644 apps/examples/smart_test/smart_test.c (limited to 'apps/examples/smart_test/smart_test.c') diff --git a/apps/examples/smart_test/smart_test.c b/apps/examples/smart_test/smart_test.c new file mode 100644 index 000000000..3f8e42449 --- /dev/null +++ b/apps/examples/smart_test/smart_test.c @@ -0,0 +1,373 @@ +/**************************************************************************** + * apps/system/smart_test/smart_test.c + * + * Copyright (C) 2013 Ken Pettit. All rights reserved. + * Author: Ken Pettit + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define SMART_TEST_LINE_COUNT 2000 +#define SMART_TEST_SEEK_WRITE_COUNT 12000 + +/**************************************************************************** + * Private data + ****************************************************************************/ + +static int g_linePos[SMART_TEST_LINE_COUNT]; +static int g_lineLen[SMART_TEST_LINE_COUNT]; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: smart_create_test_file + * + * Description: Creates the test file with test data that we will use + * to conduct the test. + * + ****************************************************************************/ + +static int smart_create_test_file(char *filename) +{ + FILE* fd; + int x; + char string[80]; + + /* Try to open the file */ + + printf("Creating file %s for write mode\n", filename); + + fd = fopen(filename, "w+"); + + if (fd == NULL) + { + printf("Unable to create file %s\n", filename); + return -ENOENT; + } + + /* Write data to the file. The data consists of a bunch of + * lines, each with a line number and the offset within the + * file where that file starts. + */ + + printf("Writing test data. %d lines to write\n", SMART_TEST_LINE_COUNT); + for (x = 0; x < SMART_TEST_LINE_COUNT; x++) + { + g_linePos[x] = ftell(fd); + + sprintf(string, "This is line %d at offset %d\n", x, g_linePos[x]); + g_lineLen[x] = strlen(string); + fprintf(fd, "%s", string); + + printf("\r%d", x); + fflush(stdout); + } + + /* Close the file */ + + printf("\r\nDone.\n"); + + fclose(fd); + + return OK; +} + +/**************************************************************************** + * Name: smart_seek_test + * + * Description: Conducts a seek test on the file. + * + ****************************************************************************/ + +static int smart_seek_test(char *filename) +{ + FILE* fd; + int x; + int index; + char readstring[80]; + char cmpstring[80]; + + printf("Performing 2000 random seek tests\n"); + + fd = fopen(filename, "r"); + if (fd == NULL) + { + printf("Unable to open file %s\n", filename); + return -ENOENT; + } + + srand(23); + for (x = 0; x < 2000; x++) + { + /* Get random line to seek to */ + + index = rand(); + while (index >= SMART_TEST_LINE_COUNT) + { + index -= SMART_TEST_LINE_COUNT; + } + + fseek(fd, g_linePos[index], SEEK_SET); + fread(readstring, 1, g_lineLen[index], fd); + readstring[g_lineLen[index]] = '\0'; + + sprintf(cmpstring, "This is line %d at offset %d\n", + index, g_linePos[index]); + + if (strcmp(readstring, cmpstring) != 0) + { + printf("\nSeek error on line %d\n", index); + } + + printf("\r%d", x); + fflush(stdout); + } + + fclose(fd); + + return OK; +} + +/**************************************************************************** + * Name: smart_append_test + * + * Description: Conducts an append test on the file. + * + ****************************************************************************/ + +static int smart_append_test(char *filename) +{ + FILE* fd; + int pos; + char readstring[80]; + + fd = fopen(filename, "a+"); + if (fd == NULL) + { + printf("Unable to open file %s\n", filename); + return -ENOENT; + } + + /* Now write some data to the end of the file */ + + fprintf(fd, "This is a test of the append.\n"); + pos = ftell(fd); + + /* Now seek to the end of the file and ensure that is where + * pos is. + */ + + fseek(fd, 0, SEEK_END); + if (ftell(fd) != pos) + { + printf("Error opening for append ... data not at EOF\n"); + } + + /* Now seek to that position and read the data back */ + + fseek(fd, 30, SEEK_END); + fread(readstring, 1, 30, fd); + readstring[30] = '\0'; + if (strcmp(readstring, "This is a test of the append.\n") != 0) + { + printf("Append test failed\n"); + } + else + { + printf("Append test passed\n"); + } + + fclose(fd); + + return OK; +} + +/**************************************************************************** + * Name: smart_seek_with_write_test + * + * Description: Conducts an append test on the file. + * + ****************************************************************************/ + +static int smart_seek_with_write_test(char *filename) +{ + FILE* fd; + int x; + int index; + char temp; + char readstring[80]; + char cmpstring[80]; + int c, s1, s2, len; + + printf("Performing %d random seek with write tests\n", + SMART_TEST_SEEK_WRITE_COUNT); + + fd = fopen(filename, "r+"); + if (fd == NULL) + { + printf("Unable to open file %s\n", filename); + return -ENOENT; + } + + index = 0; + for (x = 0; x < SMART_TEST_SEEK_WRITE_COUNT; x++) + { +#if 0 + /* Get a random value */ + + index = rand(); + while (index >= SMART_TEST_LINE_COUNT) + { + index -= SMART_TEST_LINE_COUNT; + } +#endif + /* Read the data into the buffer */ + + fseek(fd, g_linePos[index], SEEK_SET); + fread(readstring, 1, g_lineLen[index], fd); + readstring[g_lineLen[index]] = '\0'; + + /* Scramble the data in the line */ + + len = strlen(readstring); + for (c = 0; c < 100; c++) + { + s1 = rand() % len; + s2 = rand() % len; + + temp = readstring[s1]; + readstring[s1] = readstring[s2]; + readstring[s2] = temp; + } + + /* Now write the data back to the file */ + + fseek(fd, g_linePos[index], SEEK_SET); + fwrite(readstring, 1, g_lineLen[index], fd); + fflush(fd); + + /* Now read the data back and compare it */ + + fseek(fd, g_linePos[index], SEEK_SET); + fread(cmpstring, 1, g_lineLen[index], fd); + cmpstring[g_lineLen[index]] = '\0'; + + if (strcmp(readstring, cmpstring) != 0) + { + printf("\nCompare failure on line %d\n", index); + break; + } + + printf("\r%d", x); + fflush(stdout); + + /* On to next line */ + + if (++index >= SMART_TEST_LINE_COUNT) + { + index = 0; + } + } + + printf("\n"); + + fclose(fd); + + return OK; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +int smart_test_main(int argc, char *argv[]) +{ + int ret; + + /* Argument given? */ + + if (argc < 2) + { + fprintf(stderr, "usage: smart_test smart_mounted_filename\n"); + return -1; + } + + /* Create a test file */ + + if ((ret = smart_create_test_file(argv[1])) < 0) + { + return ret; + } + + /* Conduct a seek test */ + + if ((ret = smart_seek_test(argv[1])) < 0) + { + return ret; + } + + /* Conduct an append test */ + + if ((ret = smart_append_test(argv[1])) < 0) + { + return ret; + } + + /* Conduct a seek with write test */ + + if ((ret = smart_seek_with_write_test(argv[1])) < 0) + { + return ret; + } + + /* Delete the file */ + + return 0; +} -- cgit v1.2.3