Linux: Add Breakpad client.

breakpad/linux/line_reader_unittest.cc

Index: breakpad/linux/line_reader_unittest.cc
diff --git a/breakpad/linux/line_reader_unittest.cc b/breakpad/linux/line_reader_unittest.cc
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index 0000000000000000000000000000000000000000..0f9276494caecd176af06800dad7395cb3b61b68
--- /dev/null
+++ b/breakpad/linux/line_reader_unittest.cc
@@ -0,0 +1,184 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#include "breakpad/linux/line_reader.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using namespace google_breakpad;
+
+static int TemporaryFile() {
+  static const char templ[] = "/tmp/line-reader-unittest-XXXXXX";
+  char templ_copy[sizeof(templ)];
+  memcpy(templ_copy, templ, sizeof(templ));
+  const int fd = mkstemp(templ_copy);
+  if (fd >= 0)
+    unlink(templ_copy);
+
+  return fd;
+}
+
+namespace {
+typedef testing::Test LineReaderTest;
+}
+
+TEST(LineReaderTest, EmptyFile) {
+  const int fd = TemporaryFile();
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}
+
+TEST(LineReaderTest, OneLineTerminated) {
+  const int fd = TemporaryFile();
+  write(fd, "a\n", 2);
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, 1);
+  ASSERT_EQ(line[0], 'a');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}
+
+TEST(LineReaderTest, OneLine) {
+  const int fd = TemporaryFile();
+  write(fd, "a", 1);
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, 1);
+  ASSERT_EQ(line[0], 'a');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}
+
+TEST(LineReaderTest, TwoLinesTerminated) {
+  const int fd = TemporaryFile();
+  write(fd, "a\nb\n", 4);
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, 1);
+  ASSERT_EQ(line[0], 'a');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, 1);
+  ASSERT_EQ(line[0], 'b');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}
+
+TEST(LineReaderTest, TwoLines) {
+  const int fd = TemporaryFile();
+  write(fd, "a\nb", 3);
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, 1);
+  ASSERT_EQ(line[0], 'a');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, 1);
+  ASSERT_EQ(line[0], 'b');
+  ASSERT_EQ(line[1], 0);
+  reader.PopLine(len);
+
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}
+
+TEST(LineReaderTest, MaxLength) {
+  const int fd = TemporaryFile();
+  char l[LineReader::kMaxLineLen - 1];
+  memset(l, 'a', sizeof(l));
+  write(fd, l, sizeof(l));
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_TRUE(reader.GetNextLine(&line, &len));
+  ASSERT_EQ(len, sizeof(l));
+  ASSERT_TRUE(memcmp(l, line, sizeof(l)) == 0);
+  ASSERT_EQ(line[len], 0);
+
+  close(fd);
+}
+
+TEST(LineReaderTest, TooLong) {
+  const int fd = TemporaryFile();
+  char l[LineReader::kMaxLineLen];
+  memset(l, 'a', sizeof(l));
+  write(fd, l, sizeof(l));
+  lseek(fd, 0, SEEK_SET);
+  LineReader reader(fd);
+
+  const char *line;
+  unsigned len;
+  ASSERT_FALSE(reader.GetNextLine(&line, &len));
+
+  close(fd);
+}