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Merge "Merge "mntent_test: don't assume /proc isn't the first mount." into android10-tests-dev am: 0462cfb766" into android11-tests-dev

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Automerger Merge Worker 2022-05-18 00:32:25 +00:00 committed by Gerrit Code Review
commit 0a5cc21c42
1 changed files with 23 additions and 7 deletions
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30
tests/mntent_test.cpp
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@ -19,24 +19,40 @@
#include <mntent.h>
TEST(mntent, mntent_smoke) {
// Read all the entries with getmntent().
FILE* fp = setmntent("/proc/mounts", "r");
ASSERT_TRUE(fp != nullptr);
ASSERT_TRUE(getmntent(fp) != nullptr);
std::vector<std::string> fsnames;
std::vector<std::string> dirs;
mntent* me;
while ((me = getmntent(fp)) != nullptr) {
fsnames.push_back(me->mnt_fsname);
dirs.push_back(me->mnt_dir);
}
bool saw_proc = false;
ASSERT_EQ(1, endmntent(fp));
// Then again with getmntent_r(), checking they match.
fp = setmntent("/proc/mounts", "r");
ASSERT_TRUE(fp != nullptr);
struct mntent entry;
char buf[BUFSIZ];
size_t i = 0;
while (getmntent_r(fp, &entry, buf, sizeof(buf)) != nullptr) {
if (strcmp(entry.mnt_fsname, "proc") == 0 && strcmp(entry.mnt_dir, "/proc") == 0) {
saw_proc = true;
}
ASSERT_EQ(fsnames[i], entry.mnt_fsname);
ASSERT_EQ(dirs[i], entry.mnt_dir);
i++;
}
ASSERT_TRUE(saw_proc);
ASSERT_EQ(1, endmntent(fp));
// And just for good measure: we did see a /proc entry, right?
auto it = std::find(fsnames.begin(), fsnames.end(), "proc");
ASSERT_TRUE(it != fsnames.end());
size_t proc_index = it - fsnames.begin();
ASSERT_EQ("/proc", dirs[proc_index]);
}
TEST(mntent, hasmntopt) {