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5d180d1f99
(...and ASSERT_NOT_REACHED => VERIFY_NOT_REACHED) Since all of these checks are done in release builds as well, let's rename them to VERIFY to prevent confusion, as everyone is used to assertions being compiled out in release. We can introduce a new ASSERT macro that is specifically for debug checks, but I'm doing this wholesale conversion first since we've accumulated thousands of these already, and it's not immediately obvious which ones are suitable for ASSERT.
114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/*
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* Copyright (c) 2018-2020, Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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static void assert_env(const char* name, const char* value)
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{
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char* result = getenv(name);
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if (!result) {
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perror("getenv");
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printf("(When reading value for '%s'; we expected '%s'.)\n", name, value);
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VERIFY(false);
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}
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if (strcmp(result, value) != 0) {
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printf("Expected '%s', got '%s' instead.\n", value, result);
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VERIFY(false);
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}
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}
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static void test_getenv_preexisting()
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{
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assert_env("HOME", "/home/anon");
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}
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static void test_puttenv()
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{
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char* to_put = strdup("PUTENVTEST=HELLOPUTENV");
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int rc = putenv(to_put);
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if (rc) {
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perror("putenv");
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VERIFY(false);
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}
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assert_env("PUTENVTEST", "HELLOPUTENV");
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// Do not free `to_put`!
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}
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static void test_settenv()
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{
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int rc = setenv("SETENVTEST", "HELLO SETENV!", 0);
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if (rc) {
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perror("setenv");
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VERIFY(false);
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}
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// This used to trigger a very silly bug! :)
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assert_env("SETENVTEST", "HELLO SETENV!");
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rc = setenv("SETENVTEST", "How are you today?", 0);
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if (rc) {
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perror("setenv");
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VERIFY(false);
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}
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assert_env("SETENVTEST", "HELLO SETENV!");
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rc = setenv("SETENVTEST", "Goodbye, friend!", 1);
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if (rc) {
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perror("setenv");
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VERIFY(false);
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}
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assert_env("SETENVTEST", "Goodbye, friend!");
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}
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static void test_settenv_overwrite_empty()
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{
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int rc = setenv("EMPTYTEST", "Forcefully overwrite non-existing envvar", 1);
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if (rc) {
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perror("setenv");
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VERIFY(false);
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}
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assert_env("EMPTYTEST", "Forcefully overwrite non-existing envvar");
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}
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int main(int, char**)
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{
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#define RUNTEST(x) \
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{ \
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printf("Running " #x " ...\n"); \
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x(); \
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printf("Success!\n"); \
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}
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RUNTEST(test_getenv_preexisting);
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RUNTEST(test_puttenv);
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RUNTEST(test_settenv);
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RUNTEST(test_settenv_overwrite_empty);
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printf("PASS\n");
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return 0;
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}
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