From b14734b9b65db0abbc21a3e339a4ce6df77a4f6d Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 2 Dec 2009 09:31:49 -0500
Subject: [PATCH] Make CTestTestTimeout time configurable

In this test we start up a cmake script that runs a process that sleeps,
and the timeout for the script is shorter than the sleep time.  However,
in order to properly detect that the sleeping grandchild is killed when
the script times out we need to give sufficient time for the script to
start the grandchild.  Otherwise the log file for the grandchild is not
available.

On some (cygwin) builds our previous 1 second timeout for the script was
not long enough to let the interpreter load and start the grandchild.
We make the timeout time configurable by setting CTestTestTimeout_TIME
in the cache for CMake itself.  It tells the test how long to let the
script run.  The grandchild always sleeps for 4 seconds longer to ensure
a comfortable window during which the process tree can be killed.
---
 Tests/CTestTestTimeout/CMakeLists.txt | 7 ++++++-
 Tests/CTestTestTimeout/test.cmake.in  | 1 +
 Tests/CTestTestTimeout/timeout.c      | 4 ++--
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/Tests/CTestTestTimeout/CMakeLists.txt b/Tests/CTestTestTimeout/CMakeLists.txt
index 5fce68093..d22c63d21 100644
--- a/Tests/CTestTestTimeout/CMakeLists.txt
+++ b/Tests/CTestTestTimeout/CMakeLists.txt
@@ -2,6 +2,11 @@ cmake_minimum_required (VERSION 2.8)
 PROJECT(CTestTestTimeout)
 INCLUDE(CTest)
 
+IF(NOT TIMEOUT)
+  SET(TIMEOUT 1)
+ENDIF()
+
+ADD_DEFINITIONS(-DTIMEOUT=${TIMEOUT})
 ADD_EXECUTABLE (Timeout timeout.c)
 
 ADD_TEST(NAME TestTimeout
@@ -9,7 +14,7 @@ ADD_TEST(NAME TestTimeout
                            -D Log=${CMAKE_CURRENT_BINARY_DIR}/timeout.log
                            -P ${CMAKE_CURRENT_SOURCE_DIR}/timeout.cmake
   )
-SET_TESTS_PROPERTIES(TestTimeout PROPERTIES TIMEOUT 1)
+SET_TESTS_PROPERTIES(TestTimeout PROPERTIES TIMEOUT ${TIMEOUT})
 
 ADD_TEST(NAME CheckChild
   COMMAND ${CMAKE_COMMAND} -D Timeout=$<TARGET_FILE:Timeout>
diff --git a/Tests/CTestTestTimeout/test.cmake.in b/Tests/CTestTestTimeout/test.cmake.in
index 45828015c..2aa41e227 100644
--- a/Tests/CTestTestTimeout/test.cmake.in
+++ b/Tests/CTestTestTimeout/test.cmake.in
@@ -21,6 +21,7 @@ SET(CTEST_NOTES_FILES                   "${CTEST_SCRIPT_DIRECTORY}/${CTEST_SCRIP
 #CTEST_EMPTY_BINARY_DIRECTORY(${CTEST_BINARY_DIRECTORY})
 
 FILE(WRITE "${CTEST_BINARY_DIRECTORY}/CMakeCache.txt" "
+TIMEOUT:STRING=@CTestTestTimeout_TIME@
 CMAKE_TEST_GENERATOR:STRING=@CMAKE_TEST_GENERATOR@
 CMAKE_TEST_MAKEPROGRAM:FILEPATH=@CMAKE_TEST_MAKEPROGRAM@
 MAKECOMMAND:STRING=@MAKECOMMAND@
diff --git a/Tests/CTestTestTimeout/timeout.c b/Tests/CTestTestTimeout/timeout.c
index ba91bc044..370ab22ed 100644
--- a/Tests/CTestTestTimeout/timeout.c
+++ b/Tests/CTestTestTimeout/timeout.c
@@ -9,9 +9,9 @@
 int main(void)
 {
 #if defined(_WIN32)
-  Sleep(5000);
+  Sleep((TIMEOUT+4)*1000);
 #else
-  sleep(5);
+  sleep((TIMEOUT+4));
 #endif
   printf("timeout process finished sleeping!\n");
   return -1;