Add roundtrip tests for sbig, st4

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@2409 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 17 insertions, 0 deletions

diff --git a/test/st4-roundtrip.test b/test/st4-roundtrip.test
new file mode 100755
index 00000000..bd3da5f1
--- /dev/null
+++ b/test/st4-roundtrip.test
@@ -0,0 +1,17 @@
+#! /bin/bash
+# This script tests: pgmtost4 st4topgm
+# Also requires: pamchannel pamtopnm pamcut
+
+  alias st4topgm="${PBM_TESTPREFIX}st4topgm"
+  alias pgmtost4="${PBM_TESTPREFIX}pgmtost4"
+  shopt -s expand_aliases
+
+# Input image of pgmtost4 must by 192x165
+
+# Should produce 185194654 31695 which is the output of:
+# pamchannel -infile=testimg.ppm -tupletype="GRAYSCALE" 0 | \
+#   pamtopnm | pamcut -pad 0 0 192 165 | cksum
+
+pamchannel -infile=testimg.ppm -tupletype="GRAYSCALE" 0 | \
+  pamtopnm | pamcut -pad 0 0 192 165 | \
+  pgmtost4 | st4topgm - | cksum