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-rwxr-xr-xtest/pad-crop-roundtrip.test25
1 files changed, 21 insertions, 4 deletions
diff --git a/test/pad-crop-roundtrip.test b/test/pad-crop-roundtrip.test
index c7780d68..31e02c99 100755
--- a/test/pad-crop-roundtrip.test
+++ b/test/pad-crop-roundtrip.test
@@ -1,9 +1,26 @@
-#! /bin/bash
-# This script tests: pnmcrop pnmmargin
-# Also requires: pnmpad
+#! /bin/sh
+# This script tests: pnmcrop pnmmargin pnmpad
+# Also requires:
 
+# Test 1. Should produce 1926073387 101484, cksum of testimg.ppm
 
 pnmmargin -white 10 testimg.ppm | \
   pnmcrop | cksum
-pnmmargin -white 10 testgrid.pbm | \
+
+# Test 2. Should produce 1926073387 101484
+
+pnmpad -white -left 10 -top 10 testimg.ppm | \
+  pnmpad -white -right 10 -bottom 10 | \
+  pnmcrop -right -bottom | pnmcrop -left -top | cksum
+
+# Test 3. Should produce 281226646 481, cksum of maze.pbm
+
+pnmmargin -white 10 maze.pbm | \
   pnmcrop | cksum
+
+# Test 4. Should produce 281226646 481
+
+pnmpad -white -left 10 -top 10 maze.pbm | \
+  pnmpad -white -right 10 -bottom 10 | \
+  pnmcrop -left -right | pnmcrop -top -bottom | cksum
+