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require File.expand_path('../../../spec_helper', __FILE__)
ruby_version_is "1.8.7" do
require 'securerandom'
describe "SecureRandom.base64" do
it "generates a random base64 string out of specified number of random bytes" do
(16..128).each do |idx|
base64 = SecureRandom.base64(idx)
base64.should be_kind_of(String)
base64.length.should < 2 * idx
base64.should =~ /^[A-Za-z0-9\+\/]+={0,2}$/
end
base64 = SecureRandom.base64(16.5)
base64.should be_kind_of(String)
base64.length.should < 2 * 16
end
it "returns an empty string when argument is 0" do
SecureRandom.base64(0).should == ""
end
it "generates different base64 strings with subsequent invocations" do
# quick and dirty check, but good enough
values = []
256.times do
base64 = SecureRandom.base64
# make sure the random values are not repeating
values.include?(base64).should == false
values << base64
end
end
it "generates a random base64 string out of 32 random bytes" do
SecureRandom.base64.should be_kind_of(String)
SecureRandom.base64.length.should < 32 * 2
end
it "treats nil agrument as default one and generates a random base64 string" do
SecureRandom.base64(nil).should be_kind_of(String)
SecureRandom.base64(nil).length.should < 32 * 2
end
it "raises ArgumentError on negative arguments" do
lambda {
SecureRandom.base64(-1)
}.should raise_error(ArgumentError)
end
it "tries to convert the passed argument to an Integer using #to_int" do
obj = mock("to_int")
obj.should_receive(:to_int).and_return(5)
SecureRandom.base64(obj).size.should < 10
end
end
end
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