unit test for CGContext

2026-10-30 20:07:36 +00:00 · 2011-04-25 14:13:04 +02:00
1 parent d147e9cbaa
commit 6a4d8a24be
@@ -0,0 +1,78 @@
+@import <AppKit/CGContext.j>
+@import "CGTestCase.j"
+
+@implementation CGContextTest : CGTestCase
+
+- (void)testEnsureTestingCanvas
+{
+    /*
+      Ensure that we have no canvas nor vml support.
+    */
+    [self assert:YES equals:!CPFeatureIsCompatible(CPHTMLCanvasFeature)];
+    [self assert:YES equals:!CPFeatureIsCompatible(CPVMLFeature)];
+}
+
+- (void)testGStateCreate
+{
+    var gstate = CGGStateCreate(),
+        testdata = { alpha:       1.0,
+                     strokeStyle: "#000",
+                     fillStyle:   "#ccc",
+                     lineWidth:   1.0,
+                     lineJoin:    kCGLineJoinMiter,
+                     lineCap:     kCGLineCapButt,
+                     miterLimit:  10.0,
+                     globalAlpha: 1.0,
+                     blendMode:   kCGBlendModeNormal,
+                     shadowBlur:  0.0,
+                     shadowColor: NULL };
+
+    for ( var key in testdata )
+        [self assert:testdata[key] equals:gstate[key] message:"Failed for " + key];
+
+    [self compareSize:CGSizeMakeZero()
+                 with:gstate.shadowOffset
+              message:"Failed for shadowOffset"];
+
+    [self compareTransform:CGAffineTransformMakeIdentity()
+                      with:gstate.CTM
+                   message:"Failed for CTM"];
+}
+
+- (void)testGStateCreateCopy
+{
+    var gstate = CGGStateCreate(),
+        gstatecopy = CGGStateCreateCopy(gstate),
+        testdata = { alpha:       1.0,
+                     strokeStyle: "#000",
+                     fillStyle:   "#ccc",
+                     lineWidth:   1.0,
+                     lineJoin:    kCGLineJoinMiter,
+                     lineCap:     kCGLineCapButt,
+                     miterLimit:  10.0,
+                     globalAlpha: 1.0,
+                     blendMode:   kCGBlendModeNormal,
+                     shadowBlur:  0.0,
+                     shadowColor: NULL };
+
+    for ( var key in testdata )
+        [self assert:testdata[key] equals:gstatecopy[key] message:"Failed for " + key];
+
+    // ensure that the size is copied
+    var sizecopy = CGSizeMakeCopy( gstate.shadowOffset );
+    gstate.shadowOffset.width += 1000;
+    gstate.shadowOffset.height += 2000;
+    [self compareSize:sizecopy with:gstatecopy.shadowOffset message:"Failed for shadowOffset"];
+
+    // ensure that the transform is copied
+    var transformcopy = CGAffineTransformMakeCopy( gstate.CTM );
+    gstate.CTM.a += 1000;
+    gstate.CTM.b += 1000;
+    gstate.CTM.c += 1000;
+    gstate.CTM.d += 1000;
+    gstate.CTM.tx += 1000;
+    gstate.CTM.ty += 1000;
+    [self compareTransform:transformcopy with:gstatecopy.CTM message:"Failed with CTM"];
+}
+
+@end