ladybird/Userland/Utilities/test_env.cpp
Brian Gianforcaro 1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00

93 lines
2.2 KiB
C++

/*
* Copyright (c) 2018-2020, Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static void assert_env(const char* name, const char* value)
{
char* result = getenv(name);
if (!result) {
perror("getenv");
printf("(When reading value for '%s'; we expected '%s'.)\n", name, value);
VERIFY(false);
}
if (strcmp(result, value) != 0) {
printf("Expected '%s', got '%s' instead.\n", value, result);
VERIFY(false);
}
}
static void test_getenv_preexisting()
{
assert_env("HOME", "/home/anon");
}
static void test_puttenv()
{
char* to_put = strdup("PUTENVTEST=HELLOPUTENV");
int rc = putenv(to_put);
if (rc) {
perror("putenv");
VERIFY(false);
}
assert_env("PUTENVTEST", "HELLOPUTENV");
// Do not free `to_put`!
}
static void test_settenv()
{
int rc = setenv("SETENVTEST", "HELLO SETENV!", 0);
if (rc) {
perror("setenv");
VERIFY(false);
}
// This used to trigger a very silly bug! :)
assert_env("SETENVTEST", "HELLO SETENV!");
rc = setenv("SETENVTEST", "How are you today?", 0);
if (rc) {
perror("setenv");
VERIFY(false);
}
assert_env("SETENVTEST", "HELLO SETENV!");
rc = setenv("SETENVTEST", "Goodbye, friend!", 1);
if (rc) {
perror("setenv");
VERIFY(false);
}
assert_env("SETENVTEST", "Goodbye, friend!");
}
static void test_settenv_overwrite_empty()
{
int rc = setenv("EMPTYTEST", "Forcefully overwrite non-existing envvar", 1);
if (rc) {
perror("setenv");
VERIFY(false);
}
assert_env("EMPTYTEST", "Forcefully overwrite non-existing envvar");
}
int main(int, char**)
{
#define RUNTEST(x) \
{ \
printf("Running " #x " ...\n"); \
x(); \
printf("Success!\n"); \
}
RUNTEST(test_getenv_preexisting);
RUNTEST(test_puttenv);
RUNTEST(test_settenv);
RUNTEST(test_settenv_overwrite_empty);
printf("PASS\n");
return 0;
}