Use red plane of testimg.ppm for test PGM input; rewrite file names which use tmpdir in the manner of symmetry.test; add some failure messages

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@2225 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 7 insertions, 4 deletions

diff --git a/test/gif-quant-roundtrip.test b/test/gif-quant-roundtrip.test
index b5f69edd..7f99ca6e 100755
--- a/test/gif-quant-roundtrip.test
+++ b/test/gif-quant-roundtrip.test
@@ -11,10 +11,13 @@
 
 colors=15      # any value between 2 - 256 works
 
-pnmquant $colors testimg.ppm > ${tmpdir}/quant.ppm &&
-pamtogif ${tmpdir}/quant.ppm | giftopnm | \
-   cmp -s - ${tmpdir}/quant.ppm > /dev/null
+tmpdir=${tmpdir:-/tmp}
+quant_ppm=${tmpdir}/quant.ppm
+
+pnmquant ${colors} testimg.ppm > ${quant_ppm} &&
+pamtogif ${quant_ppm} | giftopnm | \
+   cmp -s - ${quant_ppm} > /dev/null
 echo $?
 
-rm ${tmpdir}/quant.ppm
+rm ${quant_ppm}