From 8853afb50994232af8351a9b05cdc1937a9824b8 Mon Sep 17 00:00:00 2001
From: Wolfgang Hommel <wolfgang.hommel@unibw.de>
Date: Thu, 4 Feb 2021 21:30:01 +0100
Subject: [PATCH] Added optional FAKETIME_TESTLIB environment variable for make
 test (#288)

---
 README.packagers          |  4 ++++
 test/functests/common.inc |  3 ++-
 test/test.sh              | 34 ++++++++++++++++++----------------
 3 files changed, 24 insertions(+), 17 deletions(-)

diff --git a/README.packagers b/README.packagers
index d2ef290..60ffe02 100644
--- a/README.packagers
+++ b/README.packagers
@@ -14,6 +14,10 @@ src/Makefile, but sane defaults for stable operations have been chosen.
 Currently, libfaketime does not use autotools yet, so there is
 _no_ ./configure step, but "make" and "make test" will work as expected.
 
+For "make test", an optional environment variable FAKETIME_TESTLIB can
+be set, pointing to the path and filename of the libfaketime library
+to be used for tests; the default is "../src/libfaketime.so.1".
+
 
 However, one problem makes it somewhat difficult to get libfaketime
 working on different platforms:
diff --git a/test/functests/common.inc b/test/functests/common.inc
index d184ae2..1a91cf4 100644
--- a/test/functests/common.inc
+++ b/test/functests/common.inc
@@ -39,7 +39,8 @@ sunos_fakecmd()
 linuxlike_fakecmd()
 {
 	typeset timestring="$1"; shift
-	typeset fakelib=../src/libfaketime.so.1
+	FTPL="${FAKETIME_TESTLIB:-../src/libfaketime.so.1}"
+	typeset fakelib="$FTPL"
 	export LD_PRELOAD=$fakelib
 	FAKETIME="$timestring" \
 	"$@"
diff --git a/test/test.sh b/test/test.sh
index d707f8d..35f2a52 100755
--- a/test/test.sh
+++ b/test/test.sh
@@ -1,14 +1,16 @@
 #!/bin/sh
 
+FTPL="${FAKETIME_TESTLIB:-../src/libfaketime.so.1}"
+
 if [ -f /etc/faketimerc ] ; then
 	echo "Running the test program with your system-wide default in /etc/faketimerc"
-	echo "\$ LD_PRELOAD=../src/libfaketime.so.1 ./timetest"
-	LD_PRELOAD=../src/libfaketime.so.1 ./timetest
+	echo "\$ LD_PRELOAD=$FTPL ./timetest"
+	LD_PRELOAD="$FTPL" ./timetest
 	echo
 else
 	echo "Running the test program with no faked time specified"
-	echo "\$ LD_PRELOAD=../src/libfaketime.so.1 ./timetest"
-	LD_PRELOAD=../src/libfaketime.so.1 ./timetest
+	echo "\$ LD_PRELOAD=$FTPL ./timetest"
+	LD_PRELOAD="$FTPL" ./timetest
 	echo
 fi
 
@@ -16,48 +18,48 @@ echo "==========================================================================
 echo
 
 echo "Running the test program with absolute date 2003-01-01 10:00:05 specified"
-echo "\$ LD_PRELOAD=../src/libfaketime.so.1 FAKETIME=\"2003-01-01 10:00:05\" ./timetest"
-LD_PRELOAD=../src/libfaketime.so.1 FAKETIME="2003-01-01 10:00:05" ./timetest
+echo "\$ LD_PRELOAD=$FTPL FAKETIME=\"2003-01-01 10:00:05\" ./timetest"
+LD_PRELOAD="$FTPL" FAKETIME="2003-01-01 10:00:05" ./timetest
 echo
 
 echo "============================================================================="
 echo
 
 echo "Running the test program with START date @2005-03-29 14:14:14 specified"
-echo "\$ LD_PRELOAD=../src/libfaketime.so.1 FAKETIME=\"@2005-03-29 14:14:14\" ./timetest"
-LD_PRELOAD=../src/libfaketime.so.1 FAKETIME="@2005-03-29 14:14:14" ./timetest
+echo "\$ LD_PRELOAD=$FTPL FAKETIME=\"@2005-03-29 14:14:14\" ./timetest"
+LD_PRELOAD="$FTPL" FAKETIME="@2005-03-29 14:14:14" ./timetest
 echo
 
 echo "============================================================================="
 echo
 
 echo "Running the test program with 10 days negative offset specified"
-echo "LD_PRELOAD=../src/libfaketime.so.1 FAKETIME=\"-10d\" ./timetest"
-LD_PRELOAD=../src/libfaketime.so.1 FAKETIME="-10d" ./timetest
+echo "LD_PRELOAD=$FTPL FAKETIME=\"-10d\" ./timetest"
+LD_PRELOAD="$FTPL" FAKETIME="-10d" ./timetest
 echo
 
 echo "============================================================================="
 echo
 
 echo "Running the test program with 10 days negative offset specified, and FAKE_STAT disabled"
-echo "\$ LD_PRELOAD=../src/libfaketime.so.1 FAKETIME=\"-10d\" NO_FAKE_STAT=1 ./timetest"
-LD_PRELOAD=../src/libfaketime.so.1 FAKETIME="-10d" NO_FAKE_STAT=1 ./timetest
+echo "\$ LD_PRELOAD=$FTPL FAKETIME=\"-10d\" NO_FAKE_STAT=1 ./timetest"
+LD_PRELOAD="$FTPL" FAKETIME="-10d" NO_FAKE_STAT=1 ./timetest
 echo
 
 echo "============================================================================="
 echo
 
 echo "Running the test program with 10 days positive offset specified, and speed-up factor"
-echo "\$ LD_PRELOAD=../src/libfaketime.so.1 FAKETIME=\"+10d x1\" ./timetest"
-LD_PRELOAD=../src/libfaketime.so.1 FAKETIME="+10d x1" NO_FAKE_STAT=1 ./timetest
+echo "\$ LD_PRELOAD=$FTPL FAKETIME=\"+10d x1\" ./timetest"
+LD_PRELOAD="$FTPL" FAKETIME="+10d x1" NO_FAKE_STAT=1 ./timetest
 echo
 
 echo "============================================================================="
 echo
 
 echo "Running the 'date' command with 15 days negative offset specified"
-echo "\$ LD_PRELOAD=../src/libfaketime.so.1 FAKETIME=\"-15d\" date"
-LD_PRELOAD=../src/libfaketime.so.1 FAKETIME="-15d" date
+echo "\$ LD_PRELOAD=$FTPL FAKETIME=\"-15d\" date"
+LD_PRELOAD="$FTPL" FAKETIME="-15d" date
 echo
 
 echo "============================================================================="