do not output color in the testcases if stdout/stderr are not a /dev/pts

test/integration/framework

@@ -1,16 +1,19 @@
 #!/bin/sh -- # no runable script, just for vi
 
 # we all like colorful messages
-CERROR="" # red
-CWARNING="" # yellow
-CMSG="" # green
-CINFO="" # light blue
-CDEBUG="" # blue
-CNORMAL="" # default system console color
-CDONE="" # green
-CPASS="" # green
-CFAIL="" # red
-CCMD="" # pink
+if expr match "$(readlink -f /proc/$$/fd/1)" '/dev/pts/[0-9]\+' > /dev/null && \
+   expr match "$(readlink -f /proc/$$/fd/2)" '/dev/pts/[0-9]\+' > /dev/null; then
+	CERROR="" # red
+	CWARNING="" # yellow
+	CMSG="" # green
+	CINFO="" # light blue
+	CDEBUG="" # blue
+	CNORMAL="" # default system console color
+	CDONE="" # green
+	CPASS="" # green
+	CFAIL="" # red
+	CCMD="" # pink
+fi
 
 msgdie() { echo "${CERROR}E: $1${CNORMAL}" >&2; exit 1; }
 msgwarn() { echo "${CWARNING}W: $1${CNORMAL}" >&2; }
@@ -42,7 +45,11 @@ if [ $MSGLEVEL -le 2 ]; then
 	msgtest() { true; }
 	msgpass() { echo -n " ${CPASS}P${CNORMAL}" >&2; }
 	msgskip() { echo -n " ${CWARNING}S${CNORMAL}" >&2; }
-	msgfail() { echo -n " ${CFAIL}FAIL${CNORMAL}" >&2; }
+	if [ -n "$CFAIL" ]; then
+		msgfail() { echo -n " ${CFAIL}FAIL${CNORMAL}" >&2; }
+	else
+		msgfail() { echo -n " ###FAILED###" >&2; }
+	fi
 fi
 if [ $MSGLEVEL -le 3 ]; then
 	msginfo() { true; }

test/integration/run-tests

@@ -8,17 +8,26 @@ if [ "$1" = "-q" ]; then
 elif [ "$1" = "-v" ]; then
 	export MSGLEVEL=4
 fi
+
+if expr match "$(readlink -f /proc/$$/fd/1)" '/dev/pts/[0-9]\+' > /dev/null; then
+	CTEST='\033[1;32m'
+	CHIGH='\033[1;35m'
+	CRESET='\033[0m'
+elif [ -z "${MSGLEVEL}" ]; then
+	export MSGLEVEL=2
+fi
+
 for testcase in $(run-parts --list $DIR | grep '/test-'); do
-	if [ "$1" = "-q" ]; then
-		echo -n "\033[1;32mRun Testcase \033[1;35m$(basename ${testcase})\033[0m"
+	if [ "$MSGLEVEL" -le 2 ]; then
+		echo -n "${CTEST}Testcase ${CHIGH}$(basename ${testcase})${CRESET}: "
 	else
-		echo "\033[1;32mRun Testcase \033[1;35m$(basename ${testcase})\033[0m"
+		echo "${CTEST}Run Testcase ${CHIGH}$(basename ${testcase})${CRESET}"
 	fi
 	if ! ${testcase}; then
                  FAIL=$((FAIL+1))
                  echo "$(basename $testcase) ... FAIL"
         fi
-	if [ "$1" = "-q" ]; then
+	if [ "$MSGLEVEL" -le 2 ]; then
 		echo
 	fi
 done

test/libapt/run-tests

@@ -7,14 +7,28 @@ echo "Compiling the tests …"
 echo "Running all testcases …"
 LDPATH="$DIR/../../build/bin"
 EXT="_libapt_test"
+
+# detect if output is on a terminal (colorful) or better not
+if expr match "$(readlink -f /proc/$$/fd/1)" '/dev/pts/[0-9]\+' > /dev/null; then
+	COLHIGH='\033[1;35m'
+	COLRESET='\033[0m'
+	TESTOKAY='\033[1;32mOKAY\033[0m'
+	TESTFAIL='\033[1;31mFAILED\033[0m'
+else
+	COLHIGH=''
+	COLRESET=''
+	TESTOKAY='OK'
+	TESTFAIL='###FAILED###'
+fi
+
 for testapp in $(ls ${LDPATH}/*$EXT)
 do
 	name=$(basename ${testapp})
+	NAME="${COLHIGH}${name}${COLRESET}"
 	tmppath=""
 
 	if [ $name = "GetListOfFilesInDir${EXT}" ]; then
 		# TODO: very-low: move env creation to the actual test-app
-		echo "Prepare Testarea for \033[1;35m$name\033[0m ..."
 		tmppath=$(mktemp -d)
 		touch "${tmppath}/anormalfile" \
 			"${tmppath}/01yet-anothernormalfile" \
@@ -46,7 +60,6 @@ do
 		ln -s "${tmppath}/anormalfile" "${tmppath}/linkedfile.list"
 		ln -s "${tmppath}/non-existing-file" "${tmppath}/brokenlink.list"
 	elif [ $name = "getLanguages${EXT}" ]; then
-		echo "Prepare Testarea for \033[1;35m$name\033[0m ..."
 		tmppath=$(mktemp -d)
 		touch "${tmppath}/ftp.de.debian.org_debian_dists_sid_main_i18n_Translation-tr" \
 			"${tmppath}/ftp.de.debian.org_debian_dists_sid_main_i18n_Translation-pt" \
@@ -56,11 +69,10 @@ do
 		tmppath="${DIR}/versions.lst"
 	fi
 
-	echo -n "Testing with \033[1;35m${name}\033[0m ... "
-	LD_LIBRARY_PATH=${LDPATH} ${testapp} ${tmppath} && echo "\033[1;32mOKAY\033[0m" || echo "\033[1;31mFAILED\033[0m"
+	echo -n "Testing with ${NAME} "
+	LD_LIBRARY_PATH=${LDPATH} ${testapp} ${tmppath} && echo "$TESTOKAY" || echo "$TESTFAIL"
 
 	if [ -n "$tmppath" -a -d "$tmppath" ]; then
-		echo "Cleanup Testarea after \033[1;35m$name\033[0m ..."
 		rm -rf "$tmppath"
 	fi