more work on tests and shimming Canvas

Author: jywarren

README.md

@@ -72,6 +72,8 @@ For help integrating, please open an issue.
 
 Notes on development next steps:
 
+* use `Marty.isBrowser`
+
 ### UI
 
 * [ ] add createUserInterface() which is set up by default to draw on ImageBoardUI, but could be swapped for nothing, or an equiv. lib

dist/image-sequencer.js

@@ -184272,7 +184272,7 @@ module.exports = function GreenChannel(options) {
     function changePixel(r, g, b, a) {
       return [0, g, 0, a];
     }
-    return require('./PixelManipulation.js')(image, {
+    return require('./PixelManipulation.js')(_image, {
       output: options.output,
       changePixel: changePixel
     });
@@ -184471,7 +184471,8 @@ module.exports = function PixelManipulation(image, options) {
   getPixels(image.src, function(err, pixels) {
 
     if(err) {
-      console.log("Bad image path")
+console.log('image src',image.src)
+      console.log("getPixels: Bad image path")
       return
     }
 

src/modules/GreenChannel.js

@@ -16,7 +16,7 @@ module.exports = function GreenChannel(options) {
     function changePixel(r, g, b, a) {
       return [0, g, 0, a];
     }
-    return require('./PixelManipulation.js')(image, {
+    return require('./PixelManipulation.js')(_image, {
       output: options.output,
       changePixel: changePixel
     });

src/modules/PixelManipulation.js

@@ -17,7 +17,8 @@ module.exports = function PixelManipulation(image, options) {
   getPixels(image.src, function(err, pixels) {
 
     if(err) {
-      console.log("Bad image path")
+console.log('image src',image.src)
+      console.log("getPixels: Bad image path")
       return
     }
 

test/image-sequencer.js

@@ -48,7 +48,7 @@ test('each core module has a draw() method which outputs an image via options.ou
     step.options.output = function moduleOutput(img) { images.push(image); }
     t.equal(step.draw(image));
   });
-  t.equal(images.length, steps.length);
+  t.equal(images.length, sequencer.steps.length);
   // and be sure they're all real images
   images.forEach(function forEachImage(img) {
     t.equal('Image', typeof img);