Add two tests for uninit reads to ToolsSanityTests

TEST=./tools/valgrind/chrome_tests.sh -t base --gtest_filter="Sanity*" on Linux and Mac
Review URL: http://codereview.chromium.org/3470006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@60271 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 0 deletions

diff --git a/base/tools_sanity_unittest.cc b/base/tools_sanity_unittest.cc
index d4b27a5..2f758e2 100644
--- a/base/tools_sanity_unittest.cc
+++ b/base/tools_sanity_unittest.cc
@@ -35,6 +35,14 @@ TEST(ToolsSanityTest, MemoryLeak) {
   leak[4] = 1;  // Make sure the allocated memory is used.
 }
 
+void ReadUninitializedValue(char *ptr) {
+  if (*ptr == true) {
+    (*ptr)++;
+  } else {
+    (*ptr)--;
+  }
+}
+
 void ReadValueOutOfArrayBoundsLeft(char *ptr) {
   LOG(INFO) << "Reading a byte out of bounds: " << ptr[-2];
 }
@@ -54,6 +62,7 @@ void WriteValueOutOfArrayBoundsRight(char *ptr, size_t size) {
 }
 
 void MakeSomeErrors(char *ptr, size_t size) {
+  ReadUninitializedValue(ptr);
   ReadValueOutOfArrayBoundsLeft(ptr);
   ReadValueOutOfArrayBoundsRight(ptr, size);
   WriteValueOutOfArrayBoundsLeft(ptr);