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#
# This file is part of ruby-ffi.
# For licensing, see LICENSE.SPECS
#
require File.expand_path(File.join(File.dirname(__FILE__), "spec_helper"))
describe "Pointer#dup" do
it "clone should be independent" do
p1 = FFI::MemoryPointer.new(:char, 1024)
p1.put_string(0, "test123");
p2 = p1.dup
p1.put_string(0, "deadbeef")
expect(p2.get_string(0)).to eq("test123")
end
it "sliced pointer can be cloned" do
p1 = FFI::MemoryPointer.new(:char, 1024)
p1.put_string(0, "test123");
p2 = p1[1].dup
# first char will be excised
expect(p2.get_string(0)).to eq("est123")
expect(p1.get_string(0)).to eq("test123")
end
it "sliced pointer when cloned is independent" do
p1 = FFI::MemoryPointer.new(:char, 1024)
p1.put_string(0, "test123");
p2 = p1[1].dup
p1.put_string(0, "deadbeef")
# first char will be excised
expect(p2.get_string(0)).to eq("est123")
end
end
describe "Struct#dup" do
it "clone should be independent" do
s = Class.new(FFI::Struct) do
layout :i, :int
end
s1 = s.new
s1[:i] = 0x12345
s2 = s1.dup
s1[:i] = 0x98765
expect(s2[:i]).to eq(0x12345)
expect(s1[:i]).to eq(0x98765)
end
end
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