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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 "FFI.errno" do
module LibTest
extend FFI::Library
ffi_lib TestLibrary::PATH
attach_function :setLastError, [ :int ], :void
attach_function :setErrno, [ :int ], :void
end
it "FFI.errno contains errno from last function, FFI::LastError.winapi_error works differently per OS" do
# setup
LibTest.setErrno(0)
LibTest.setLastError(0)
LibTest.setLastError(0x12345678)
# cases
case FFI::Platform::OS
when "cygwin"
expect(FFI::LastError.winapi_error).to eq(0x12345678)
LibTest.setErrno(0x2A)
expect(FFI.errno).to eq(0x2A)
when "windows"
expect(FFI::LastError.winapi_error).to eq(0x12345678)
expect(FFI.errno).to eq(0x12345678)
else
# Linux, and else
expect {FFI::LastError.winapi_error}.to raise_exception(NoMethodError)
expect {FFI::LastError.winapi_error = 0}.to raise_exception(NoMethodError)
expect(FFI.errno).to eq(0x12345678)
end
end
end
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