pqc/tests/ntru_file_cunit.c

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/*
* Copyright (C) 2014 FH Bielefeld
*
* This file is part of a FH Bielefeld project.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
/**
* @file ntru_file_cunit.c
* Test cases for file reading and writing.
* @brief tests for ntru_file.c
*/
#include "ntru.h"
#include <CUnit/Basic.h>
#include <CUnit/Console.h>
#include <CUnit/Automated.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/**
* Read a valid text file and compare it with the correct expected
* string.
*/
void test_read_text_file1(void)
{
string *tmp_str = read_file("test-file.txt");
char actual_string[512];
char *expected_string = "This test file is a test file.\n";
memcpy(actual_string, tmp_str->ptr, tmp_str->len);
actual_string[tmp_str->len] = '\0';
string_delete(tmp_str);
CU_ASSERT_PTR_NOT_NULL(actual_string);
CU_ASSERT_EQUAL((strcmp(actual_string, expected_string)), 0);
}
/**
* Read a valid text file and compare it with an uncorrect expected
* string.
*/
void test_read_text_file2(void)
{
string *tmp_str = read_file("test-file.txt");
char actual_string[512];
char *expected_string = "foo\n";
memcpy(actual_string, tmp_str->ptr, tmp_str->len);
actual_string[tmp_str->len] = '\0';
string_delete(tmp_str);
CU_ASSERT_PTR_NOT_NULL(actual_string);
CU_ASSERT_NOT_EQUAL((strcmp(actual_string, expected_string)), 0);
}
/**
* Read an invalid text file.
*/
void test_read_text_file3(void)
{
string *actual_string = read_file("asd");
CU_ASSERT_PTR_NULL(actual_string);
}
/**
* Pass NULL to the read_file() function.
*/
void test_read_text_file4(void)
{
string *actual_string = read_file(NULL);
CU_ASSERT_PTR_NULL(actual_string);
}
/**
* Test if writing the file works, without checking the content.
*/
void test_write_text_file1(void)
{
string *tmp_str = read_file("test-file.txt");
write_file(tmp_str, "test-file.out");
string_delete(tmp_str);
CU_ASSERT_EQUAL(0, access("test-file.out", F_OK));
}
/**
* Test if the written file has the expected content.
*/
void test_write_text_file2(void)
{
string *tmp_str = read_file("test-file.txt");
char actual_string[512];
char *expected_string = "This test file is a test file.\n";
write_file(tmp_str, "test-file.out");
string_delete(tmp_str);
tmp_str = read_file("test-file.out");
memcpy(actual_string, tmp_str->ptr, tmp_str->len);
actual_string[tmp_str->len] = '\0';
string_delete(tmp_str);
CU_ASSERT_PTR_NOT_NULL(actual_string);
CU_ASSERT_EQUAL((strcmp(actual_string, expected_string)), 0);
}
/**
* Check error handling when trying to write to directory.
*/
void test_write_text_file3(void)
{
string str;
char *c_str = "This test file is a test file.\n";
str.ptr = c_str;
str.len = 0;
str.len = strlen(c_str);
CU_ASSERT_EQUAL(false, write_file(&str, "."));
}
/**
* Check error handling when passing NULL pointers.
*/
void test_write_text_file4(void)
{
CU_ASSERT_EQUAL(false, write_file(NULL, "test-file.out"));
}
/**
* Check error handling when passing NULL pointers.
*/
void test_write_text_file5(void)
{
string str;
char *c_str = "This test file is a test file.\n";
str.ptr = c_str;
str.len = strlen(c_str);
CU_ASSERT_EQUAL(false, write_file(&str, NULL));
}