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require_relative '../../../spec_helper'
require_relative '../fixtures/classes'
require_relative 'shared/basic'
require_relative 'shared/taint'
describe "String#unpack with format 'P'" do
it_behaves_like :string_unpack_basic, 'P'
it_behaves_like :string_unpack_taint, 'P'
it "round-trips a string through pack and unpack" do
["hello"].pack("P").unpack("P5").should == ["hello"]
end
it "cannot unpack a string except from the same object that created it, or a duplicate of it" do
packed = ["hello"].pack("P")
packed.unpack("P5").should == ["hello"]
packed.dup.unpack("P5").should == ["hello"]
-> { packed.to_sym.to_s.unpack("P5") }.should raise_error(ArgumentError, /no associated pointer/)
end
ruby_version_is ''...'2.7' do
it "taints the unpacked string" do
["hello"].pack("P").unpack("P5").first.tainted?.should be_true
end
end
it "reads as many characters as specified" do
["hello"].pack("P").unpack("P1").should == ["h"]
end
it "reads only as far as a NUL character" do
["hello"].pack("P").unpack("P10").should == ["hello"]
end
end
describe "String#unpack with format 'p'" do
it_behaves_like :string_unpack_basic, 'p'
it_behaves_like :string_unpack_taint, 'p'
it "round-trips a string through pack and unpack" do
["hello"].pack("p").unpack("p").should == ["hello"]
end
it "cannot unpack a string except from the same object that created it, or a duplicate of it" do
packed = ["hello"].pack("p")
packed.unpack("p").should == ["hello"]
packed.dup.unpack("p").should == ["hello"]
-> { packed.to_sym.to_s.unpack("p") }.should raise_error(ArgumentError, /no associated pointer/)
end
ruby_version_is ''...'2.7' do
it "taints the unpacked string" do
["hello"].pack("p").unpack("p").first.tainted?.should be_true
end
end
end
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