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#
# This file is part of ruby-ffi.
#
# This code is free software: you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License version 3 only, as
# published by the Free Software Foundation.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
# version 3 for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# version 3 along with this work. If not, see <http://www.gnu.org/licenses/>.
#
require File.expand_path(File.join(File.dirname(__FILE__), "spec_helper"))
describe FFI::Struct do
it "packed :char followed by :int should have size of 5" do
Class.new(FFI::Struct) do
packed
layout :c, :char, :i, :int
end.size.should eq 5
end
it "packed :char followed by :int should have alignment of 1" do
Class.new(FFI::Struct) do
packed
layout :c, :char, :i, :int
end.alignment.should eq 1
end
it "packed(2) :char followed by :int should have size of 6" do
Class.new(FFI::Struct) do
packed 2
layout :c, :char, :i, :int
end.size.should eq 6
end
it "packed(2) :char followed by :int should have alignment of 2" do
Class.new(FFI::Struct) do
packed 2
layout :c, :char, :i, :int
end.alignment.should eq 2
end
it "packed :short followed by int should have size of 6" do
Class.new(FFI::Struct) do
packed
layout :s, :short, :i, :int
end.size.should eq 6
end
it "packed :short followed by int should have alignment of 1" do
Class.new(FFI::Struct) do
packed
layout :s, :short, :i, :int
end.alignment.should eq 1
end
end
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