1727595b0e
This test tried to be lazy and test both getmntent() and getmntent_r()
in the same test, but that led to an implicit assumption that /proc
isn't the first mount returned.
This new version is quite a bit more thorough than the old. It does
assume that the mount list doesn't change while the test is running, but
that seems like a reasonable assumption to make during CTS?
Bug: https://issuetracker.google.com/230228681
Test: treehugger
Change-Id: I5c5f0b86ae1c4df9a2ce69d48e1c3accb42c687b
(cherry picked from commit 1e393b0699)
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <mntent.h>
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TEST(mntent, mntent_smoke) {
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// Read all the entries with getmntent().
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FILE* fp = setmntent("/proc/mounts", "r");
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ASSERT_TRUE(fp != nullptr);
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std::vector<std::string> fsnames;
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std::vector<std::string> dirs;
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mntent* me;
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while ((me = getmntent(fp)) != nullptr) {
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fsnames.push_back(me->mnt_fsname);
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dirs.push_back(me->mnt_dir);
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}
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ASSERT_EQ(1, endmntent(fp));
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// Then again with getmntent_r(), checking they match.
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fp = setmntent("/proc/mounts", "r");
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ASSERT_TRUE(fp != nullptr);
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struct mntent entry;
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char buf[BUFSIZ];
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size_t i = 0;
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while (getmntent_r(fp, &entry, buf, sizeof(buf)) != nullptr) {
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ASSERT_EQ(fsnames[i], entry.mnt_fsname);
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ASSERT_EQ(dirs[i], entry.mnt_dir);
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i++;
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}
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ASSERT_EQ(1, endmntent(fp));
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// And just for good measure: we did see a /proc entry, right?
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auto it = std::find(fsnames.begin(), fsnames.end(), "proc");
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ASSERT_TRUE(it != fsnames.end());
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size_t proc_index = it - fsnames.begin();
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ASSERT_EQ("/proc", dirs[proc_index]);
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}
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TEST(mntent, hasmntopt) {
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// indices 1 1
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// of keys: 0 5 9 1 4
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char mnt_opts[]{"aa=b,a=b,b,bb,c=d"};
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struct mntent ent;
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memset(&ent, 0, sizeof(ent));
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ent.mnt_opts = mnt_opts;
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EXPECT_EQ(mnt_opts, hasmntopt(&ent, "aa"));
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EXPECT_EQ(mnt_opts + 5, hasmntopt(&ent, "a"));
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EXPECT_EQ(mnt_opts + 9, hasmntopt(&ent, "b"));
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EXPECT_EQ(mnt_opts + 11, hasmntopt(&ent, "bb"));
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EXPECT_EQ(mnt_opts + 14, hasmntopt(&ent, "c"));
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EXPECT_EQ(nullptr, hasmntopt(&ent, "d"));
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EXPECT_EQ(nullptr, hasmntopt(&ent, "e"));
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}
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