On 12/10/10 8:56 AM, Matt Wynne wrote:
Hello folks,
I'm writing some tests for file upload code. The files are binary, images
mostly. I'm futzing around a bit, trying to figure out how to assert that the
uploaded file is the same as some golden master. If I do this:
File.read(uploaded_file_path).should == File.read(path_to_expected_file)
Then when it fails, I get an ugly diff of the difference between the binary
files. So I'm about to invent something of my own. Has anyone got a good
pattern for doing this already?
cheers,
Matt
I would compare the file's MD5 (or other) hash. It won't tell you what
is different.. just that they aren't identical which is what I think you
want. So... something like:
Digest::MD5.hexdigest(File.read(uploaded_file_path)).should ==
Digest::MD5.hexdigest(File.read(path_to_expected_file))
-Ben
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