rwaldron

Inspired by Robert O'Callahan's blog

To reduce the need for "visual confirmation" tests:

• store the base-64 encoded data-uri of a reference png as a string
• copy the outerHTML of your test fixture into an SVG wrapper, prefixed with "data:image/svg+xml,"
• set the src of an image to the value of the SVG wrapper
• copy the image into a canvas context
• assert equality of canvas.context.toDataURL() and previously stored reference string

joshuaclayton

I use Homebrew and wanted to install pip for mercurial.  Pip requires a homebrew-installed version of Python, which is fine and dandy; however, I noticed that webkit2png was broken after I installed Python with Homebrew (it was missing pyobjc libs, which comes with the OS X Python install by default).

This assumes that the current homebrewed version of Python is 2.7.1 and that homebrew is set up for /usr/local.  If that's not the case, you may have to change the minor version of setuptools (e.g. from 2.7 to 2.8) and change the PATH accordingly.

$ brew install python

Modify your PATH to include the path to Python's bin directory:

export PATH="/usr/local/Cellar/python/2.7.1/bin:/usr/local/bin:$PATH"