diff --git a/tests/validate-colorspace.tap b/tests/validate-colorspace.tap
new file mode 100755
index 0000000..05d6617
--- /dev/null
+++ b/tests/validate-colorspace.tap
@@ -0,0 +1,123 @@
+#!/bin/sh
+#
+# Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization
+# dedicated to making software imaging solutions freely available.
+#
+# You may not use this file except in compliance with the License. You may
+# obtain a copy of the License at
+#
+# http://www.imagemagick.org/script/license.php
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+. ${srcdir}/tests/common.shi
+echo "1..1"
+
+depth=`eval ${MAGICK} xc:none -format '%[fx:QuantumRange]' info:-`
+if [ "X$depth" == "X255" ]; then
+ exit 0
+fi
+
+# how to generate a one pixel (average rose) color and output its values
+in="rose: -scale 1x1" # a one pixel image of the average color.
+out="-format '%[fx:int(255*r+.5)],%[fx:int(255*g+.5)],%[fx:int(255*b+.5)]' info:-"
+
+# ----------------
+
+# Colors to compare results to.
+error=false
+average=`eval ${MAGICK} "$in" -noop "$out"`
+too_dark=`eval ${MAGICK} "$in" -colorspace RGB "$out"`
+too_light=`eval ${MAGICK} "$in" -set colorspace RGB -colorspace sRGB "$out"`
+format='%-30s%s\n' # results formating
+format2='%-30s%-14s%s\n'
+
+printf "$format2" "Average \"rose:\" Color" "$average" "sRGB(rose)"
+printf "$format2" "Too Dark Color" "$too_dark" "sRGB(rose)->RGB result"
+printf "$format2" "Too Light Color" "$too_light" "RGB(rose)->sRGB result"
+echo ''
+
+#
+# Sanity checks
+#
+# NOTE: as a extra validation on sanity checks below...
+# eval ${MAGICK} "$in" -gamma .454545 "$out"
+# produces a value of 74,25,20 which is close to 73,26,21 below.
+# eval ${MAGICK} "$in" -gamma 2.2 "$out"
+# produces a value of 198,158,151 whcih is close to 199,160,152 below.
+#
+# Actual values used below come from IM v6.5.4-7 colorspace conversions
+#
+error=false
+if [ "X$average" != "X146,89,80" ]; then
+ echo "Sanity Failure: Average expected to be 145,89,80 - ABORTING"
+ error=true
+fi
+if [ "X$too_dark" != "X73,26,21" ]; then
+ echo "Sanity Failure: Too Dark expected to be 73,26,21 - ABORTING"
+ error=true
+fi
+if [ "X$too_light" != "X199,160,152" ]; then
+ echo "Sanity Failure: Too Light expected to be 199,160,152 - ABORTING"
+ error=true
+fi
+$error && exit 1
+
+test_color() {
+ test="sRGB"
+ cs='';
+ for i in "$@"; do
+ test="${test}->$i" # format of the test being performed
+ cs="$cs -colorspace $i" # colorspace operations to perform test
+ done
+ color=`eval ${MAGICK} "$in" $cs "$out"`
+
+ if [ "X$color" = "X$average" ]; then
+ printf "$format" "$test" "good"
+ return
+ fi
+ # Its failed the round-trip test, now report how it failed!
+ error=true
+ if [ "X$color" = "X$too_light" ]; then
+ printf "$format" "$test" "TOO_LIGHT"
+ return
+ fi
+ if [ "X$color" = "X$too_dark" ]; then
+ printf "$format" "$test" "TOO_DARK"
+ return
+ fi
+ printf "$format" "$test" "UNKNOWN COLOR (expect $average, got $color)"
+}
+
+# ----------------
+
+test_color RGB sRGB # round trip (parts tested above)
+
+test_color XYZ sRGB
+test_color XYZ RGB sRGB
+test_color RGB XYZ sRGB
+
+test_color LAB sRGB
+test_color XYZ LAB sRGB
+test_color LAB XYZ sRGB
+test_color RGB LAB sRGB
+test_color LAB RGB sRGB
+
+test_color CMY sRGB
+test_color CMYK sRGB
+test_color HSL sRGB
+test_color HSB sRGB
+test_color HWB sRGB
+test_color Log sRGB
+test_color YIQ sRGB
+test_color YUV sRGB
+test_color YCbCr sRGB
+test_color OHTA sRGB
+
+$error && exit 1 # return the overall error result
+exit 0
+: