diff --git a/Tests/AppKit/CGColorSpaceTest.j b/Tests/AppKit/CGColorSpaceTest.j
new file mode 100644
index 000000000..2b17da8a6
--- /dev/null
+++ b/Tests/AppKit/CGColorSpaceTest.j
@@ -0,0 +1,138 @@
+@import <AppKit/CGColorSpace.j>
+
+@implementation CGColorSpaceTest : OJTestCase 
+
+- (void)testColorSpaceCreateWithName
+{
+    var testdata = { 
+      "CGColorSpaceGenericGray" : {
+          model: kCGColorSpaceModelMonochrome,
+          count: 1,
+          base: NULL
+      },
+      "CGColorSpaceGenericRGB" : {
+          model: kCGColorSpaceModelRGB,
+          count: 3,
+          base: NULL
+      },
+      "CGColorSpaceGenericCMYK" : {
+          model: kCGColorSpaceModelCMYK,
+          count: 4,
+          base: NULL
+      },
+      "CGColorSpaceGenericRGBLinear" : {
+          model: kCGColorSpaceModelRGB,
+          count: 3,
+          base: NULL
+      },
+      "CGColorSpaceGenericRGBHDR" : {
+          model: kCGColorSpaceModelRGB,
+          count: 3,
+          base: NULL
+      },
+      "CGColorSpaceAdobeRGB1998" : {
+          model: kCGColorSpaceModelRGB,
+          count: 3,
+          base: NULL
+      },
+      "CGColorSpaceSRGB" : {
+          model: kCGColorSpaceModelRGB,
+          count: 3,
+          base: NULL
+      },
+    }
+    
+    for ( var key in testdata ) {
+        var clrsp = CGColorSpaceCreateWithName(key),
+            expdata = testdata[key];
+        [self assert:expdata.model equals:clrsp.model message:"model for "+key];
+        [self assert:expdata.count equals:clrsp.count message:"count for "+key];
+        [self assert:expdata.base equals:clrsp.base message:"base for "+key];
+    }
+
+    [self assert:NULL 
+          equals:CGColorSpaceCreateWithName("doesnotexist") 
+          message:"should be missing"];
+}
+
+
+- (void)testColorSpaceStandardizeComponents
+{
+    // the following models are all not supported.
+
+    var testcases = {
+        "notsupported1" : {
+          testdata : {
+              model: kCGColorSpaceModelIndexed, 
+              count: 5
+          },
+          expected: [5,4,3,2,1,NaN] // alpha value normalisation adds value at index 5
+        },
+        "notsupported2" : {
+          testdata : {
+              model: kCGColorSpaceModelLab,
+              count: 5
+          },
+          expected: [5,4,3,2,1,NaN]
+        },
+        "notsupported3" : {
+          testdata : {
+              model: kCGColorSpaceModelPattern,
+              count: 4
+          },
+          expected: [5,4,3,2,1]
+        },
+        "base override with count value" : {
+          testdata : {
+              model: kCGColorSpaceModelPattern,
+              base: { model: kCGColorSpaceModelMonochrome },
+              count: 4
+          },
+          expected: [1,1,1,1,1],
+        },
+        "base override no count value" : {
+          testdata : {
+              model: kCGColorSpaceModelPattern,
+              base: { model: kCGColorSpaceModelMonochrome, count: 4 },
+              count: 0
+          },
+          expected: [1,4,3,2,1], // alpha value is assumed to be at index 0
+        },
+        "monochrome color space model" : {
+          testdata : {
+              model: kCGColorSpaceModelMonochrome,
+              count: 2
+          },
+          expected: [1,1,1,2,1],
+        },
+        "rgb color space model" : {
+          testdata : {
+              model: kCGColorSpaceModelRGB,
+              count: 2
+          },
+          expected: [1,1,1,2,1],
+        },
+        "cmyk color space model" : {
+          testdata : {
+              model: kCGColorSpaceModelCMYK,
+              count: 2
+          },
+          expected: [1,1,1,2,1],
+        },
+        "devicen color space model" : {
+          testdata : {
+              model: kCGColorSpaceModelDeviceN,
+              count: 2
+          },
+          expected: [1,1,1,2,1],
+        },
+    }
+
+    for ( var key in testcases ) {
+        var components = [5,4,3,2,1];
+        CGColorSpaceStandardizeComponents( testcases[key].testdata, components);
+        [self assert:testcases[key].expected equals:components message:"Failed for "+key];
+    }
+}
+
+@end