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# -*- encoding: binary -*-
require_relative '../../../spec_helper'
require_relative '../fixtures/classes'
require_relative 'shared/basic'
describe "String#unpack with directive 'w'" do
it_behaves_like :string_unpack_basic, 'w'
it_behaves_like :string_unpack_no_platform, 'w'
it "decodes a BER-compressed integer" do
[ ["\x00", [0]],
["\x01", [1]],
["\xce\x0f", [9999]],
["\x84\x80\x80\x80\x80\x80\x80\x80\x80\x00", [2**65]]
].should be_computed_by(:unpack, "w")
end
it "ignores NULL bytes between directives" do
"\x01\x02\x03".unpack("w\x00w").should == [1, 2]
end
it "ignores spaces between directives" do
"\x01\x02\x03".unpack("w w").should == [1, 2]
end
end
describe "String#unpack with directive 'w*'" do
it "decodes BER-compressed integers" do
"\x01\x02\x03\x04".unpack("w*").should == [1, 2, 3, 4]
"\x00\xCE\x0F\x84\x80\x80\x80\x80\x80\x80\x80\x80\x00\x01\x00".unpack("w*").should == [0, 9999, 2**65, 1, 0]
"\x81\x80\x80\x80\x80\x80\x80\x80\x80\x00\x90\x80\x80\x80\x80\x80\x80\x80\x03\x01\x02".unpack("w*").should == [2**63, (2**60 + 3), 1, 2]
end
end
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