toolkit/crashreporter/google-breakpad/src/common/linux/safe_readlink_unittest.cc

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1 // Copyright (c) 2011, Google Inc.
michael@0 2 // All rights reserved.
michael@0 3 //
michael@0 4 // Redistribution and use in source and binary forms, with or without
michael@0 5 // modification, are permitted provided that the following conditions are
michael@0 6 // met:
michael@0 7 //
michael@0 8 // * Redistributions of source code must retain the above copyright
michael@0 9 // notice, this list of conditions and the following disclaimer.
michael@0 10 // * Redistributions in binary form must reproduce the above
michael@0 11 // copyright notice, this list of conditions and the following disclaimer
michael@0 12 // in the documentation and/or other materials provided with the
michael@0 13 // distribution.
michael@0 14 // * Neither the name of Google Inc. nor the names of its
michael@0 15 // contributors may be used to endorse or promote products derived from
michael@0 16 // this software without specific prior written permission.
michael@0 17 //
michael@0 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0 29
michael@0 30 // safe_readlink_unittest.cc: Unit tests for google_breakpad::SafeReadLink.
michael@0 31
michael@0 32 #include "breakpad_googletest_includes.h"
michael@0 33 #include "common/linux/safe_readlink.h"
michael@0 34
michael@0 35 using google_breakpad::SafeReadLink;
michael@0 36
michael@0 37 TEST(SafeReadLinkTest, ZeroBufferSize) {
michael@0 38 char buffer[1];
michael@0 39 EXPECT_FALSE(SafeReadLink("/proc/self/exe", buffer, 0));
michael@0 40 }
michael@0 41
michael@0 42 TEST(SafeReadLinkTest, BufferSizeTooSmall) {
michael@0 43 char buffer[1];
michael@0 44 EXPECT_FALSE(SafeReadLink("/proc/self/exe", buffer, 1));
michael@0 45 }
michael@0 46
michael@0 47 TEST(SafeReadLinkTest, BoundaryBufferSize) {
michael@0 48 char buffer[PATH_MAX];
michael@0 49 EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer, sizeof(buffer)));
michael@0 50 size_t path_length = strlen(buffer);
michael@0 51 EXPECT_LT(0U, path_length);
michael@0 52 EXPECT_GT(sizeof(buffer), path_length);
michael@0 53
michael@0 54 // Buffer size equals to the expected path length plus 1 for the NULL byte.
michael@0 55 char buffer2[PATH_MAX];
michael@0 56 EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer2, path_length + 1));
michael@0 57 EXPECT_EQ(path_length, strlen(buffer2));
michael@0 58 EXPECT_EQ(0, strncmp(buffer, buffer2, PATH_MAX));
michael@0 59
michael@0 60 // Buffer size equals to the expected path length.
michael@0 61 EXPECT_FALSE(SafeReadLink("/proc/self/exe", buffer, path_length));
michael@0 62 }
michael@0 63
michael@0 64 TEST(SafeReadLinkTest, NonexistentPath) {
michael@0 65 char buffer[PATH_MAX];
michael@0 66 EXPECT_FALSE(SafeReadLink("nonexistent_path", buffer, sizeof(buffer)));
michael@0 67 }
michael@0 68
michael@0 69 TEST(SafeReadLinkTest, NonSymbolicLinkPath) {
michael@0 70 char actual_path[PATH_MAX];
michael@0 71 EXPECT_TRUE(SafeReadLink("/proc/self/exe", actual_path, sizeof(actual_path)));
michael@0 72
michael@0 73 char buffer[PATH_MAX];
michael@0 74 EXPECT_FALSE(SafeReadLink(actual_path, buffer, sizeof(buffer)));
michael@0 75 }
michael@0 76
michael@0 77 TEST(SafeReadLinkTest, DeduceBufferSizeFromCharArray) {
michael@0 78 char buffer[PATH_MAX];
michael@0 79 char* buffer_pointer = buffer;
michael@0 80 EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer_pointer, sizeof(buffer)));
michael@0 81 size_t path_length = strlen(buffer);
michael@0 82
michael@0 83 // Use the template version of SafeReadLink to deduce the buffer size
michael@0 84 // from the char array.
michael@0 85 char buffer2[PATH_MAX];
michael@0 86 EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer2));
michael@0 87 EXPECT_EQ(path_length, strlen(buffer2));
michael@0 88 EXPECT_EQ(0, strncmp(buffer, buffer2, PATH_MAX));
michael@0 89 }

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