isa-l/igzip/checksum32_funcs_test.c

/**********************************************************************
  Copyright(c) 2011-2018 Intel Corporation All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * 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.
    * Neither the name of Intel Corporation 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.
**********************************************************************/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "igzip_checksums.h"
#include "checksum_test_ref.h"
#include "test.h"

#ifndef TEST_SEED
# define TEST_SEED 0x1234
#endif

#define MAX_BUF   512
#define TEST_SIZE  20

typedef uint32_t(*checksum32_func_t) (uint32_t, const unsigned char *, uint64_t);

typedef struct func_case {
	char *note;
	checksum32_func_t checksum32_func_call;
	checksum32_func_t checksum32_ref_call;
} func_case_t;

func_case_t test_funcs[] = {
	{"checksum32_adler", isal_adler32, adler_ref},
};

// Generates pseudo-random data

void rand_buffer(unsigned char *buf, long buffer_size)
{
	long i;
	for (i = 0; i < buffer_size; i++)
		buf[i] = rand();
}

// Test cases
int zeros_test(func_case_t * test_func);
int simple_pattern_test(func_case_t * test_func);
int seeds_sizes_test(func_case_t * test_func);
int eob_test(func_case_t * test_func);
int update_test(func_case_t * test_func);
int update_over_mod_test(func_case_t * test_func);

int verbose = 0;
void *buf_alloc = NULL;

int main(int argc, char *argv[])
{
	int fail = 0, fail_case;
	int i, ret;
	func_case_t *test_func;

	verbose = argc - 1;

	// Align to MAX_BUF boundary
	ret = posix_memalign(&buf_alloc, MAX_BUF, MAX_BUF * TEST_SIZE);
	if (ret) {
		printf("alloc error: Fail");
		return -1;
	}
	srand(TEST_SEED);
	printf("CHECKSUM32 Tests seed=0x%x\n", TEST_SEED);

	for (i = 0; i < sizeof(test_funcs) / sizeof(test_funcs[0]); i++) {
		fail_case = 0;
		test_func = &test_funcs[i];

		printf("Test %s ", test_func->note);
		fail_case += zeros_test(test_func);
		fail_case += simple_pattern_test(test_func);
		fail_case += seeds_sizes_test(test_func);
		fail_case += eob_test(test_func);
		fail_case += update_test(test_func);
		fail_case += update_over_mod_test(test_func);
		printf("Test %s done: %s\n", test_func->note, fail_case ? "Fail" : "Pass");

		if (fail_case) {
			printf("\n%s Failed %d tests\n", test_func->note, fail_case);
			fail++;
		}
	}

	printf("CHECKSUM32 Tests all done: %s\n", fail ? "Fail" : "Pass");

	return fail;
}

// Test of all zeros
int zeros_test(func_case_t * test_func)
{
	uint32_t c_dut, c_ref;
	int fail = 0;
	unsigned char *buf = NULL;

	buf = (unsigned char *)buf_alloc;
	memset(buf, 0, MAX_BUF * 10);
	c_dut = test_func->checksum32_func_call(TEST_SEED, buf, MAX_BUF * 10);
	c_ref = test_func->checksum32_ref_call(TEST_SEED, buf, MAX_BUF * 10);

	if (c_dut != c_ref) {
		fail++;
		printf("\n		opt    ref\n");
		printf("		------ ------\n");
		printf("checksum	zero = 0x%8x 0x%8x \n", c_dut, c_ref);
	} else
		printf(".");

	return fail;
}

// Another simple test pattern
int simple_pattern_test(func_case_t * test_func)
{
	uint32_t c_dut, c_ref;
	int fail = 0;
	unsigned char *buf = NULL;

	buf = (unsigned char *)buf_alloc;
	memset(buf, 0x8a, MAX_BUF);
	c_dut = test_func->checksum32_func_call(TEST_SEED, buf, MAX_BUF);
	c_ref = test_func->checksum32_ref_call(TEST_SEED, buf, MAX_BUF);
	if (c_dut != c_ref)
		fail++;
	if (verbose)
		printf("checksum  all 8a = 0x%8x 0x%8x\n", c_dut, c_ref);
	else
		printf(".");

	return fail;
}

int seeds_sizes_test(func_case_t * test_func)
{
	uint32_t c_dut, c_ref;
	int fail = 0;
	int i;
	uint32_t r, s;
	unsigned char *buf = NULL;

	// Do a few random tests
	buf = (unsigned char *)buf_alloc;	//reset buf
	r = rand();
	rand_buffer(buf, MAX_BUF * TEST_SIZE);

	for (i = 0; i < TEST_SIZE; i++) {
		c_dut = test_func->checksum32_func_call(r, buf, MAX_BUF);
		c_ref = test_func->checksum32_ref_call(r, buf, MAX_BUF);
		if (c_dut != c_ref)
			fail++;
		if (verbose)
			printf("checksum rand%3d = 0x%8x 0x%8x\n", i, c_dut, c_ref);
		else
			printf(".");
		buf += MAX_BUF;
	}

	// Do a few random sizes
	buf = (unsigned char *)buf_alloc;	//reset buf
	r = rand();

	for (i = MAX_BUF; i >= 0; i--) {
		c_dut = test_func->checksum32_func_call(r, buf, i);
		c_ref = test_func->checksum32_ref_call(r, buf, i);
		if (c_dut != c_ref) {
			fail++;
			printf("fail random size%i 0x%8x 0x%8x\n", i, c_dut, c_ref);
		} else
			printf(".");
	}

	// Try different seeds
	for (s = 0; s < 20; s++) {
		buf = (unsigned char *)buf_alloc;	//reset buf

		r = rand();	// just to get a new seed
		rand_buffer(buf, MAX_BUF * TEST_SIZE);	// new pseudo-rand data

		if (verbose)
			printf("seed = 0x%x\n", r);

		for (i = 0; i < TEST_SIZE; i++) {
			c_dut = test_func->checksum32_func_call(r, buf, MAX_BUF);
			c_ref = test_func->checksum32_ref_call(r, buf, MAX_BUF);
			if (c_dut != c_ref)
				fail++;
			if (verbose)
				printf("checksum rand%3d = 0x%8x 0x%8x\n", i, c_dut, c_ref);
			else
				printf(".");
			buf += MAX_BUF;
		}
	}

	return fail;
}

// Run tests at end of buffer
int eob_test(func_case_t * test_func)
{
	uint32_t c_dut, c_ref;
	int fail = 0;
	int i;
	unsigned char *buf = NULL;

	buf = (unsigned char *)buf_alloc;	//reset buf
	buf = buf + ((MAX_BUF - 1) * TEST_SIZE);	//Line up TEST_SIZE from end
	for (i = 0; i < TEST_SIZE; i++) {
		c_dut = test_func->checksum32_func_call(TEST_SEED, buf + i, TEST_SIZE - i);
		c_ref = test_func->checksum32_ref_call(TEST_SEED, buf + i, TEST_SIZE - i);
		if (c_dut != c_ref)
			fail++;
		if (verbose)
			printf("checksum eob rand%3d = 0x%8x 0x%8x\n", i, c_dut, c_ref);
		else
			printf(".");
	}

	return fail;
}

int update_test(func_case_t * test_func)
{
	uint32_t c_dut, c_ref;
	int fail = 0;
	int i;
	uint32_t r;
	unsigned char *buf = NULL;

	buf = (unsigned char *)buf_alloc;	//reset buf
	r = rand();
	// Process the whole buf with reference func single call.
	c_ref = test_func->checksum32_ref_call(r, buf, MAX_BUF * TEST_SIZE);
	// Process buf with update method.
	for (i = 0; i < TEST_SIZE; i++) {
		c_dut = test_func->checksum32_func_call(r, buf, MAX_BUF);
		// Update checksum seeds and buf pointer.
		r = c_dut;
		buf += MAX_BUF;
	}

	if (c_dut != c_ref)
		fail++;
	if (verbose)
		printf("checksum rand%3d = 0x%8x 0x%8x\n", i, c_dut, c_ref);
	else
		printf(".");

	return fail;
}

int update_over_mod_test(func_case_t * test_func)
{
	uint32_t c_dut, c_ref;
	int fail = 0;
	int i;
	unsigned char *buf = NULL;

	buf = malloc(ADLER_MOD);
	memset(buf, 0xff, ADLER_MOD);

	c_ref = c_dut = rand();

	// Process buf with update method.
	for (i = 0; i < 20; i++) {
		c_ref = test_func->checksum32_ref_call(c_ref, buf, ADLER_MOD - 64);
		c_dut = test_func->checksum32_func_call(c_dut, buf, ADLER_MOD - 64);
	}

	if (c_dut != c_ref)
		fail++;
	if (verbose)
		printf("checksum rand%3d = 0x%8x 0x%8x\n", i, c_dut, c_ref);
	else
		printf(".");

	free(buf);
	return fail;
}