spec/ruby/library/base64/strict_decode64_spec.rb


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require_relative '../../spec_helper'

ruby_version_is ""..."3.4" do

  require 'base64'

  describe "Base64#strict_decode64" do
    it "returns the Base64-decoded version of the given string" do
      Base64.strict_decode64("U2VuZCByZWluZm9yY2VtZW50cw==").should == "Send reinforcements"
    end

    it "returns the Base64-decoded version of the given shared string" do
      Base64.strict_decode64("base64: U2VuZCByZWluZm9yY2VtZW50cw==".split(" ").last).should == "Send reinforcements"
    end

    it "raises ArgumentError when the given string contains CR" do
      -> do
        Base64.strict_decode64("U2VuZCByZWluZm9yY2VtZW50cw==\r")
      end.should raise_error(ArgumentError)
    end

    it "raises ArgumentError when the given string contains LF" do
      -> do
        Base64.strict_decode64("U2VuZCByZWluZm9yY2VtZW50cw==\n")
      end.should raise_error(ArgumentError)
    end

    it "raises ArgumentError when the given string has wrong padding" do
      -> do
        Base64.strict_decode64("=U2VuZCByZWluZm9yY2VtZW50cw==")
      end.should raise_error(ArgumentError)
    end

    it "raises ArgumentError when the given string contains an invalid character" do
      -> do
        Base64.strict_decode64("%3D")
      end.should raise_error(ArgumentError)
    end

    it "returns a binary encoded string" do
      Base64.strict_decode64("SEk=").encoding.should == Encoding::BINARY
    end
  end
end