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# encoding: binary
ruby_version_is "4.1" do
require_relative '../../../spec_helper'
require_relative '../fixtures/classes'
require_relative 'shared/basic'
describe "String#unpack with format '^'" do
it_behaves_like :string_unpack_basic, '^'
it_behaves_like :string_unpack_no_platform, '^'
it "returns the current offset that start from 0" do
"".unpack("^").should == [0]
end
it "returns the current offset after the last decode ended" do
"a".unpack("CC^").should == [97, nil, 1]
end
it "returns the current offset that start from the given offset" do
"abc".unpack("^", offset: 1).should == [1]
end
it "returns the offset moved by 'X'" do
"\x01\x02\x03\x04".unpack("C3X2^").should == [1, 2, 3, 1]
end
it "returns the offset moved by 'x'" do
"\x01\x02\x03\x04".unpack("Cx2^").should == [1, 3]
end
it "returns the offset to the position the previous decode ended" do
"foo".unpack("A4^").should == ["foo", 3]
"foo".unpack("a4^").should == ["foo", 3]
"foo".unpack("Z5^").should == ["foo", 3]
end
it "returns the offset including truncated part" do
"foo ".unpack("A*^").should == ["foo", 6]
"foo\0".unpack("Z*^").should == ["foo", 4]
"foo\0\0\0".unpack("Z5^").should == ["foo", 5]
end
end
end
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