Add tests for command line parameters for pamaddnoise, ppmrough

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@4610 9d0c8265-081b-0410-96cb-a4ca84ce46f8

5 files changed, 572 insertions, 1 deletions

diff --git a/test/Test-Order b/test/Test-Order
index cef89618..7bec1002 100644
--- a/test/Test-Order
+++ b/test/Test-Order
@@ -37,6 +37,7 @@ pgmnoise-parameters.test
 ppmpat-random.test
 ppmforge.test
 ppmrough.test
+ppmrough-parameters.test
 
 # Analyzer tests
 
@@ -89,7 +90,6 @@ pambackground.test
 pnmpad-reportonly.test
 pnmpaste-pbm.test
 
-pamstack.test
 pamrestack.test
 pamshuffle.test
 ppmshift.test
@@ -135,6 +135,8 @@ pnmcrop-blank.test
 ppmmix.test
 pammixmulti-identity.test
 
+pamaddnoise-parameters.test
+
 # Symmetry test
 
 symmetry.test
diff --git a/test/pamaddnoise-parameters.ok b/test/pamaddnoise-parameters.ok
new file mode 100644
index 00000000..e86632cf
--- /dev/null
+++ b/test/pamaddnoise-parameters.ok
@@ -0,0 +1,62 @@
+Test Invalid
+Expected failure 1 (no output)
+Expected failure 2 (no output)
+Expected failure 3 (no output)
+Expected failure 4 (no output)
+Expected failure 5 (no output)
+Expected failure 6 (no output)
+Expected failure 7 (no output)
+Expected failure 8 (no output)
+Expected failure 9 (no output)
+Expected failure 10 (no output)
+Expected failure 11 (no output)
+Expected failure 12 (no output)
+Expected failure 13 (no output)
+Expected failure 14 (no output)
+Expected failure 15 (no output)
+Expected failure 16 (no output)
+Expected failure 17 (no output)
+Expected failure 18 (no output)
+Expected failure 19 (no output)
+Expected failure 20 (no output)
+Expected failure 21 (no output)
+Expected failure 22 (no output)
+Expected failure 23 (no output)
+Expected failure 24 (no output)
+Expected failure 25 (no output)
+Expected failure 26 (no output)
+Expected failure 27 (no output)
+Expected failure 28 (no output)
+Expected failure 29 (no output)
+Expected failure 30 (no output)
+Expected failure 31 (no output)
+Expected failure 32 (no output)
+Expected failure 33 (no output)
+Expected failure 34 (no output)
+Expected failure 35 (no output)
+Expected failure 36 (no output)
+Expected failure 37 (no output)
+Expected failure 38 (no output)
+Expected failure 39 (no output)
+Expected failure 40 (no output)
+Expected failure 41 (no output)
+Expected failure 42 (no output)
+Expected failure 43 (no output)
+Expected failure 44 (no output)
+Expected failure 45 (no output)
+Expected failure 46 (no output)
+Expected failure 47 (no output)
+Expected failure 48 (no output)
+Expected failure 49 (no output)
+Expected failure 50 (no output)
+Expected failure 51 (no output)
+Expected failure 52 (no output)
+Expected failure 53 (no output)
+Expected failure 54 (no output)
+Expected failure 55 (no output)
+Expected failure 56 (no output)
+Expected failure 57 (no output)
+Expected failure 58 (no output)
+Expected failure 59 (no output)
+Expected failure 60 (no output)
+Expected failure 61 (no output)
diff --git a/test/pamaddnoise-parameters.test b/test/pamaddnoise-parameters.test
new file mode 100755
index 00000000..098d4946
--- /dev/null
+++ b/test/pamaddnoise-parameters.test
@@ -0,0 +1,337 @@
+#! /bin/sh
+# This script tests: pamaddnoise
+# Also requires:
+
+tmpdir=${tmpdir:-/tmp}
+test_out=/${tmpdir}/test.out
+
+# Test Invalid
+echo "Test Invalid"
+
+echo 1>&2
+echo "Invalid command-line argument combinations." 1>&2
+echo "Error messages should appear below the line." 1>&2
+echo "-----------------------------------------------------------" 1>&2
+
+# type gaussian implied
+
+pamaddnoise -sigma1=-4.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 1 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -sigma2=-20.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 2 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -mgsigma=0.5 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 3 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -lsigma=10.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 4 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -tolerance=0.10 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 5 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -salt=0.50 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 6 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -lambda=12.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 7 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+# type gaussian explicitly stated
+
+pamaddnoise -type gaussian -sigma1=-0.01 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 8 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type gaussian -sigma2=-0.01 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 9 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type gaussian -mgsigma=0.5 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 10 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type gaussian -lsigma=10.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 11 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type gaussian -tolerance=0.10 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 12 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type gaussian -salt=0.50 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 13 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type gaussian -lambda=12.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 14 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+# type multiplicative gaussian
+
+pamaddnoise -type multiplicative_gaussian -sigma1=4.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 15 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+  
+pamaddnoise -type multiplicative_gaussian -sigma2=20.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 16 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type multiplicative_gaussian -mgsigma=-0.5 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 17 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type multiplicative_gaussian -lsigma=10.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 18 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type multiplicative_gaussian -tolerance=0.10 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 19 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type multiplicative_gaussian -salt=0.50 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 20 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type multiplicative_gaussian -lambda=12.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 21 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+# type laplacian
+
+pamaddnoise -type laplacian -sigma1=4.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 22 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type laplacian -sigma2=20.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 23 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type laplacian -mgsigma=0.5 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 24 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type laplacian -lsigma=-10.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 25 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type laplacian -tolerance=0.10 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 26 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type laplacian -salt=0.50 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 27 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type laplacian -lambda=12.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 28 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+ 
+
+# type impulse
+
+pamaddnoise -type impulse -sigma1=4.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 29 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impulse -sigma2=20.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 30 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impulse -mgsigma=0.5 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 31 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impulse -lsigma=10.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 32 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impulse -tolerance=-0.10 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 33 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impulse -tolerance=1.10 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 34 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impulse -salt=-0.10 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 35 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impulse -salt=+1.10 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 36 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impulse -lambda=12.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 37 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+# type poisson
+
+pamaddnoise -type poisson -sigma1=4.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 38 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type poisson -sigma2=20.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 39 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type poisson -mgsigma=0.5 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 40 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type poisson -lsigma=10.0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 41 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type poisson -tolerance=0.10 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 42 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type poisson -salt=0.50 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 43 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type poisson -lambda=0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 44 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+# Missing or invalid numerical parameters
+
+pamaddnoise -sigma1 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 45 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -sigma1 Z testgrid.pbm > ${test_out} || \
+  printf "Expected failure 46 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type gaussian -sigma2 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 47 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type gaussian -sigma2 sigma testgrid.pbm > ${test_out} || \
+  printf "Expected failure 48 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type mult -mgsigma testgrid.pbm > ${test_out} || \
+  printf "Expected failure 49 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type mult -mgsigma 10,0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 50 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type lapl -lsigma 1..0 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 51 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type lapl -lsigma lsigma testgrid.pbm > ${test_out} || \
+  printf "Expected failure 52 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impul -tolerance testgrid.pbm > ${test_out} || \
+  printf "Expected failure 53 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impul -tolerance t testgrid.pbm > ${test_out} || \
+  printf "Expected failure 54 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impul -salt testgrid.pbm > ${test_out} || \
+  printf "Expected failure 55 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type impul -salt pepper testgrid.pbm > ${test_out} || \
+  printf "Expected failure 56 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type pois -lambda testgrid.pbm > ${test_out} || \
+  printf "Expected failure 57 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -type pois -lambda L testgrid.pbm > ${test_out} || \
+  printf "Expected failure 58 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -seed -1 testgrid.pbm > ${test_out} || \
+  printf "Expected failure 59 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+pamaddnoise -seed random testgrid.pbm > ${test_out} || \
+  printf "Expected failure 60 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+  
+# no type specified
+
+pamaddnoise -type testgrid.pbm > ${test_out} || \
+  printf "Expected failure 61 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
diff --git a/test/ppmrough-parameters.ok b/test/ppmrough-parameters.ok
new file mode 100644
index 00000000..473ace05
--- /dev/null
+++ b/test/ppmrough-parameters.ok
@@ -0,0 +1,25 @@
+Test Invalid
+Expected failure 1 (no output)
+Expected failure 2 (no output)
+Expected failure 3 (no output)
+Expected failure 4 (no output)
+Expected failure 5 (no output)
+Expected failure 6 (no output)
+Expected failure 7 (no output)
+Expected failure 8 (no output)
+Expected failure 9 (no output)
+Expected failure 10 (no output)
+Expected failure 11 (no output)
+Expected failure 12 (no output)
+Expected failure 13 (no output)
+Expected failure 14 (no output)
+Expected failure 15 (no output)
+Expected failure 16 (no output)
+Expected failure 17 (no output)
+Expected failure 20 (no output)
+Expected failure 18 (no output)
+Expected failure 19 (no output)
+Expected failure 20 (no output)
+Expected failure 21 (no output)
+Expected failure 22 (no output)
+Expected failure 23 (no output)
diff --git a/test/ppmrough-parameters.test b/test/ppmrough-parameters.test
new file mode 100755
index 00000000..fb67424e
--- /dev/null
+++ b/test/ppmrough-parameters.test
@@ -0,0 +1,145 @@
+#! /bin/sh
+# This script tests: ppmrough
+# Also requires:
+
+tmpdir=${tmpdir:-/tmp}
+test_out=${tmpdir}/test_out
+
+
+# Test Invalid
+echo "Test Invalid"
+
+echo 1>&2
+echo "Invalid command-line argument combinations." 1>&2
+echo "Error messages should appear below the line." 1>&2
+echo "-----------------------------------------------------------" 1>&2
+
+ppmrough -h 10 -w 10 -top -1 > ${test_out} || \
+  printf "Expected failure 1 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -h 10 -w 100 -top 11 > ${test_out} || \
+  printf "Expected failure 2 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+
+ppmrough -h 10 -w 10 -bottom -1 > ${test_out} || \
+  printf "Expected failure 3 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -h 10 -w 1000 -bottom 11 > ${test_out} || \
+  printf "Expected failure 4 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -h 10 -w 10 -left -1 > ${test_out} || \
+  printf "Expected failure 5 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -h 10 -w 100 -left 101 > ${test_out} || \
+  printf "Expected failure 6 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+
+ppmrough -h 10 -w 10 -right -1 > ${test_out} || \
+  printf "Expected failure 7 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -h 10 -w 1000 -right 1001 > ${test_out} || \
+  printf "Expected failure 8 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+
+ppmrough -width 0.1 > ${test_out} || \
+  printf "Expected failure 9 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -width -1 > ${test_out} || \
+  printf "Expected failure 10 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -width > ${test_out} || \
+  printf "Expected failure 11 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+
+ppmrough -height 0.1 > ${test_out} || \
+  printf "Expected failure 12 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -height -1 > ${test_out} || \
+  printf "Expected failure 13 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -height > ${test_out} || \
+  printf "Expected failure 14 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+
+ppmrough -randomseed 0.1 > ${test_out} || \
+  printf "Expected failure 15 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -randomseed -1 > ${test_out} || \
+  printf "Expected failure 16 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -randomseed > ${test_out} || \
+  printf "Expected failure 17 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+
+
+ppmrough -var A > ${test_out} || \
+  printf "Expected failure 20 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -var -1 > ${test_out} || \
+  printf "Expected failure 18 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -var > ${test_out} || \
+  printf "Expected failure 19 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+
+ppmrough -bg redmint > ${test_out} || \
+  printf "Expected failure 20 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -bg > ${test_out} || \
+  printf "Expected failure 21 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+
+ppmrough -fg redmint > ${test_out} || \
+  printf "Expected failure 22 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+
+ppmrough -fg > ${test_out} || \
+  printf "Expected failure 23 "
+  test -s ${test_out} && echo "unexpected output" || echo "(no output)"
+  rm -f ${test_out}
+