mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-11 01:06:01 +03:00
43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
|
/*
|
||
|
|
* Copyright (c) 2022, Daniel Bertalan <dani@danielbertalan.dev>
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <LibTest/TestCase.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <sys/wait.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
// Test whether file writes are flushed to disk at program termination,
|
||
|
|
// even if we do not close the files or call fflush().
|
||
|
|
TEST_CASE(flush_on_exit)
|
||
|
|
{
|
||
|
|
static constexpr auto test_str = "peekaboo";
|
||
|
|
auto pid = fork();
|
||
|
|
VERIFY(pid >= 0);
|
||
|
|
|
||
|
|
if (pid == 0) {
|
||
|
|
auto* fp = fopen("/tmp/flushtest", "w");
|
||
|
|
VERIFY(fp != nullptr);
|
||
|
|
auto nwritten = fwrite(test_str, 1, strlen(test_str), fp);
|
||
|
|
VERIFY(nwritten != 0);
|
||
|
|
// We intentionally leak `fp` here.
|
||
|
|
exit(0);
|
||
|
|
} else {
|
||
|
|
int wstatus;
|
||
|
|
auto rc = waitpid(pid, &wstatus, 0);
|
||
|
|
VERIFY(rc >= 0);
|
||
|
|
|
||
|
|
char buf[256];
|
||
|
|
auto* fp = fopen("/tmp/flushtest", "r");
|
||
|
|
VERIFY(fp != nullptr);
|
||
|
|
auto* sp = fgets(buf, sizeof(buf), fp);
|
||
|
|
VERIFY(sp != nullptr);
|
||
|
|
fclose(fp);
|
||
|
|
unlink("/tmp/flushtest");
|
||
|
|
|
||
|
|
EXPECT_EQ(strcmp(test_str, buf), 0);
|
||
|
|
}
|
||
|
|
}
|