1 files changed, 48 insertions, 0 deletions
diff --git a/test/pamhue.test b/test/pamhue.test
new file mode 100755
index 00000000..5979e414
--- /dev/null
+++ b/test/pamhue.test
@@ -0,0 +1,48 @@
+#! /bin/bash
+# This script tests: pamhue
+# Also requires: pamseq ppmhist pamdepth
+
+echo "Test 1"
+# Should print 1213482165 83 twice
+
+pamseq -tupletype=RGB 3 1 | pamdepth 255 | pamhue -huechange=60 | cksum
+pamseq -tupletype=RGB 3 1 | pamdepth 255 | pamhue -huechange=-300 | cksum
+
+echo "Test 2"
+
+pamseq -tupletype=RGB 3 1 | pamdepth 255 | ppmhist -sort=rgb
+pamseq -tupletype=RGB 3 1 | pamdepth 255 | pamhue -huechange=60 | \
+  ppmhist -sort=rgb
+
+echo "Test 3"
+# pamhue has no effect on monotone images
+# Should print 281226646 481 twice
+
+pamhue -huechange=45  maze.pbm | cmp -s - maze.pbm
+  echo ${PIPESTATUS[@]} ":" $?
+pamhue -huechange=180 maze.pbm | cmp -s - maze.pbm
+  echo ${PIPESTATUS[@]} ":" $?
+
+echo "Test 4"
+# spinning the color wheel by multiples of 360 leaves the image unchanged
+# Should print 1926073387 101484 twice
+
+pamhue -huechange=0 testimg.ppm   | cmp -s - testimg.ppm
+  echo ${PIPESTATUS[@]} ":" $?
+pamhue -huechange=360 testimg.ppm | cmp -s - testimg.ppm
+  echo ${PIPESTATUS[@]} ":" $?
+
+echo "Test Invalid"
+
+tmpdir=${tmpdir:-/tmp}
+test_out=${tmpdir}/test_out
+
+echo 1>&2
+echo "Omission of mandatory argument." 1>&2
+echo "An error message should appear below the line." 1>&2
+echo "-----------------------------------------------------------" 1>&2
+
+pamhue testimg.ppm  > ${test_out} || \
+  printf "Expected failure 1"
+  test -s ${test_out}; echo " "$?
+  rm -f ${test_out}