From 1d6e7ed71ffab4f2716353da08eafab0f3398c8a Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Tue, 24 Nov 2009 12:15:33 -0500
Subject: [PATCH] Improve fake $HOME test isolation code

The commit "Fake $HOME to isolate tests from user" started setting $HOME
in the CTest script environment.  On some platforms tests depend on some
local configuration in the home directory, such as the "cvs login" for
KWSys in CTestTest3.

In this commit we now construct a fake home dir during CMake config step
and populate it with a .cvspass file needed by the test.  We also check
CTEST_NO_TEST_HOME to optionally disable the test home.

See issue #9949.
---
 Tests/CMakeLists.txt         | 9 +++++++++
 Tests/EnforceConfig.cmake.in | 7 +------
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index cc7f5579c..b51630da8 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -13,6 +13,15 @@ MACRO(ADD_TEST_MACRO NAME COMMAND)
   LIST(APPEND TEST_BUILD_DIRS "${CMake_BINARY_DIR}/Tests/${NAME}")
 ENDMACRO(ADD_TEST_MACRO)
 
+# Fake a user home directory to avoid polluting the real one.
+IF(DEFINED ENV{HOME} AND NOT CTEST_NO_TEST_HOME)
+  SET(TEST_HOME "${CMake_BINARY_DIR}/Tests/CMakeFiles/TestHome")
+  FILE(MAKE_DIRECTORY "${TEST_HOME}")
+  FILE(WRITE "${TEST_HOME}/.cvspass" ":pserver:anoncvs@www.cmake.org:/cvsroot/KWSys A\n")
+  SET(TEST_HOME_ENV_CODE "# Fake a user home directory to avoid polluting the real one.
+SET(ENV{HOME} \"${TEST_HOME}\")")
+ENDIF()
+
 # Make sure the 'testing' test gets a proper configuration.
 CONFIGURE_FILE(${CMake_SOURCE_DIR}/Tests/EnforceConfig.cmake.in
                ${CMake_BINARY_DIR}/Tests/EnforceConfig.cmake @ONLY)
diff --git a/Tests/EnforceConfig.cmake.in b/Tests/EnforceConfig.cmake.in
index 9a5f04231..b2101f832 100644
--- a/Tests/EnforceConfig.cmake.in
+++ b/Tests/EnforceConfig.cmake.in
@@ -28,9 +28,4 @@ IF(NOT CTEST_CONFIGURATION_TYPE AND CONFIG_REQUIRED)
   MESSAGE("Guessing configuration ${CTEST_CONFIGURATION_TYPE}")
 ENDIF(NOT CTEST_CONFIGURATION_TYPE AND CONFIG_REQUIRED)
 
-# Fake a user home directory to avoid polluting the real one.
-IF(DEFINED ENV{HOME})
-  SET(HOME "@CMake_BINARY_DIR@/Tests/CMakeFiles/TestHome")
-  FILE(MAKE_DIRECTORY "${HOME}")
-  SET(ENV{HOME} "${HOME}")
-ENDIF(DEFINED ENV{HOME})
+@TEST_HOME_ENV_CODE@