From f1c8959e66046a42de580b2cece79a54eb982a67 Mon Sep 17 00:00:00 2001
From: John Cupitt <jcupitt@gmail.com>
Date: Sun, 4 Oct 2020 16:14:13 +0100
Subject: [PATCH] add a test for vipsthumbnail of stdin/stdout

---
 test/test_cli.sh | 32 ++++++++++++++++++++++++++------
 1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/test/test_cli.sh b/test/test_cli.sh
index 633445af..f8c6a0ea 100755
--- a/test/test_cli.sh
+++ b/test/test_cli.sh
@@ -68,15 +68,13 @@ for i in nearest bicubic bilinear nohalo lbb; do
 	test_rotate $image $i
 done
 
-test_thumbnail() {
-	geo=$1
+test_size() {
+	to_test=$1
 	correct_width=$2
 	correct_height=$3
 
-	printf "testing thumbnail -s $geo ... "
-	$vipsthumbnail $image -s "$geo" -o $tmp/t1.jpg
-	width=$($vipsheader -f width $tmp/t1.jpg)
-	height=$($vipsheader -f height $tmp/t1.jpg)
+	width=$($vipsheader -f width $to_test)
+	height=$($vipsheader -f height $to_test)
 	if [ $width -ne $correct_width ]; then
 		echo width is $width, not $correct_width
 		exit 1
@@ -85,6 +83,16 @@ test_thumbnail() {
 		echo height is $height, not $correct_height
 		exit 1
 	fi
+}
+
+test_thumbnail() {
+	geo=$1
+	correct_width=$2
+	correct_height=$3
+
+	printf "testing thumbnail -s $geo ... "
+	$vipsthumbnail $image -s "$geo" -o $tmp/t1.jpg
+	test_size $tmp/t1.jpg $correct_width $correct_height
 
 	echo "ok"
 }
@@ -96,3 +104,15 @@ test_thumbnail "100x100<" 290 442
 test_thumbnail "2000<" 1312 2000
 test_thumbnail "100x100>" 66 100
 test_thumbnail "2000>" 290 442
+
+# test thumbnail to and from pipes
+echo -n "testing thumbnail of stdin / stdout ... "
+$vipsthumbnail stdin -s 100 -o $tmp/t1.jpg < $image
+test_size $tmp/t1.jpg 66 100
+cat $image | $vipsthumbnail stdin -s 100 -o $tmp/t1.jpg
+test_size $tmp/t1.jpg 66 100
+cat $image | $vipsthumbnail stdin -s 100 -o .jpg > $tmp/t1.jpg
+test_size $tmp/t1.jpg 66 100
+cat $image | $vipsthumbnail stdin -s 100 -o .jpg | cat > $tmp/t1.jpg
+echo ok
+test_size $tmp/t1.jpg 66 100