Ignore SIGPIPE when running tests

base/test_suite.h

Index: base/test_suite.h
===================================================================
--- base/test_suite.h	(revision 19025)
+++ base/test_suite.h	(working copy)
@@ -24,7 +24,13 @@
 
 #if defined(OS_WIN)
 #include <windows.h>
-#elif defined(OS_LINUX)
+#endif
+
+#if defined(OS_POSIX)
+#include <signal.h>
+#endif
+
+#if defined(OS_LINUX)
 #include <gtk/gtk.h>
 #endif
 
@@ -108,6 +114,17 @@
     // Note: temporarily enabled timestamps in an effort to catch bug 6361.
     logging::SetLogItems(true, true, true, true);
 
+#if defined(OS_POSIX)
+    // When running in an application, our code typically expects SIGPIPE
+    // to be ignored.  Therefore, when testing that same code, it should run
+    // with SIGPIPE ignored as well.
+    struct sigaction action;
+    action.sa_handler = SIG_IGN;
+    action.sa_flags = 0;
+    sigemptyset(&action.sa_mask);
+    CHECK(sigaction(SIGPIPE, &action, NULL) == 0);
+#endif  // OS_POSIX
+
 #if defined(OS_WIN)
     // For unit tests we turn on the high resolution timer and disable
     // base::Time's use of SystemMonitor. Tests create and destroy the message