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require File.expand_path('../../../spec_helper', __FILE__)
require 'digest'
describe "Digest.hexencode" do
before :each do
@string = 'sample string'
@encoded = "73616d706c6520737472696e67"
end
it "returns '' when passed an empty String" do
Digest.hexencode('').should == ''
end
it "returns the hex-encoded value of a non-empty String" do
Digest.hexencode(@string).should == @encoded
end
it "calls #to_str on an object and returns the hex-encoded value of the result" do
obj = mock("to_str")
obj.should_receive(:to_str).and_return(@string)
Digest.hexencode(obj).should == @encoded
end
it "raises a TypeError when passed nil" do
lambda { Digest.hexencode(nil) }.should raise_error(TypeError)
end
it "raises a TypeError when passed a Fixnum" do
lambda { Digest.hexencode(9001) }.should raise_error(TypeError)
end
end
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