Merge of Breakpad Chrome Linux fork

A=agl, Lei Zhang
R=nealsid, agl



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@384 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/client/linux/minidump_writer/linux_dumper_unittest.cc

@@ -0,0 +1,118 @@
+// 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 <unistd.h>
+
+#include "client/linux/minidump_writer/linux_dumper.h"
+#include "breakpad_googletest_includes.h"
+
+using namespace google_breakpad;
+
+namespace {
+typedef testing::Test LinuxDumperTest;
+}
+
+TEST(LinuxDumperTest, Setup) {
+  LinuxDumper dumper(getpid());
+}
+
+TEST(LinuxDumperTest, FindMappings) {
+  LinuxDumper dumper(getpid());
+  ASSERT_TRUE(dumper.Init());
+
+  ASSERT_TRUE(dumper.FindMapping(reinterpret_cast<void*>(getpid)));
+  ASSERT_TRUE(dumper.FindMapping(reinterpret_cast<void*>(printf)));
+  ASSERT_FALSE(dumper.FindMapping(NULL));
+}
+
+TEST(LinuxDumperTest, ThreadList) {
+  LinuxDumper dumper(getpid());
+  ASSERT_TRUE(dumper.Init());
+
+  ASSERT_GE(dumper.threads().size(), 1);
+  bool found = false;
+  for (size_t i = 0; i < dumper.threads().size(); ++i) {
+    if (dumper.threads()[i] == getpid()) {
+      found = true;
+      break;
+    }
+  }
+}
+
+TEST(LinuxDumperTest, BuildProcPath) {
+  const pid_t pid = getpid();
+  LinuxDumper dumper(pid);
+
+  char maps_path[256] = "dummymappath";
+  char maps_path_expected[256];
+  snprintf(maps_path_expected, sizeof(maps_path_expected),
+           "/proc/%d/maps", pid);
+  dumper.BuildProcPath(maps_path, pid, "maps");
+  ASSERT_STREQ(maps_path, maps_path_expected);
+
+  // In release mode, we expect BuildProcPath to handle the invalid
+  // parameters correctly and fill map_path with an empty
+  // NULL-terminated string.
+#ifdef NDEBUG
+  snprintf(maps_path, sizeof(maps_path), "dummymappath");
+  dumper.BuildProcPath(maps_path, 0, "maps");
+  EXPECT_STREQ(maps_path, "");
+
+  snprintf(maps_path, sizeof(maps_path), "dummymappath");
+  dumper.BuildProcPath(maps_path, getpid(), "");
+  EXPECT_STREQ(maps_path, "");
+
+  snprintf(maps_path, sizeof(maps_path), "dummymappath");
+  dumper.BuildProcPath(maps_path, getpid(), NULL);
+  EXPECT_STREQ(maps_path, "");
+#endif
+}
+
+TEST(LinuxDumperTest, MappingsIncludeLinuxGate) {
+  LinuxDumper dumper(getpid());
+  ASSERT_TRUE(dumper.Init());
+
+  void* linux_gate_loc = dumper.FindBeginningOfLinuxGateSharedLibrary(getpid());
+  if (linux_gate_loc) {
+    bool found_linux_gate = false;
+
+    const wasteful_vector<MappingInfo*> mappings = dumper.mappings();
+    const MappingInfo* mapping;
+    for (unsigned i = 0; i < mappings.size(); ++i) {
+      mapping = mappings[i];
+      if (!strcmp(mapping->name, kLinuxGateLibraryName)) {
+        found_linux_gate = true;
+        break;
+      }
+    }
+    EXPECT_TRUE(found_linux_gate);
+    EXPECT_EQ(linux_gate_loc, reinterpret_cast<void*>(mapping->start_addr));
+    EXPECT_EQ(0, memcmp(linux_gate_loc, ELFMAG, SELFMAG));
+  }
+}