/* * Copyright (c) 2022 Huawei Device Co., Ltd. * 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 #include #include "test.h" /** * @tc.name : srand_0100 * @tc.desc : Test the srand function to set the random number seed * @tc.level : Level 0 */ void srand_0100(void) { int a[10] = {0}; int b[10] = {0}; srand(10); for (int i = 0; i < 10; i++) { a[i] = rand(); } srand(10); for (int i = 0; i < 10; i++) { b[i] = rand(); } for (int i = 0; i < 10; i++) { if (a[i] != b[i]) { t_error("%s srand rand in %d is %d , %d \n", __func__, i, a[i], b[i]); } } } /** * @tc.name : srand_0200 * @tc.desc : Change the random number seed * @tc.level : Level 1 */ void srand_0200(void) { int a = 0; int b = 0; srand(10); a = rand(); srand(500); b = rand(); if (a == b) { t_error("%s srand get rand is %d , %d \n", __func__, a, b); } } int main(int argc, char *argv[]) { srand_0100(); srand_0200(); return t_status; }