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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 "Function with primitive integer arguments" do

module LibTest

extend FFI::Library

ffi_lib TestLibrary::PATH

attach_function :ret_s8, [ :char ], :char

attach_function :ret_u8, [ :uchar ], :uchar

attach_function :ret_s16, [ :short ], :short

attach_function :ret_u16, [ :ushort ], :ushort

attach_function :ret_s32, [ :int ], :int

attach_function :ret_u32, [ :uint ], :uint

attach_function :ret_s64, [ :long_long ], :long_long

attach_function :ret_u64, [ :ulong_long ], :ulong_long

attach_function :ret_long, [ :long ], :long

attach_function :ret_ulong, [ :ulong ], :ulong

attach_function :set_s8, [ :char ], :void

attach_function :get_s8, [ ], :char

attach_function :set_float, [ :float ], :void

attach_function :get_float, [ ], :float

attach_function :set_double, [ :double ], :void

attach_function :get_double, [ ], :double

end

it "int8.size" do

expect(FFI::TYPE_INT8.size).to eq(1)

end

it "uint8.size" do

expect(FFI::TYPE_UINT8.size).to eq(1)

end

it "int16.size" do

expect(FFI::TYPE_INT16.size).to eq(2)

end

it "uint16.size" do

expect(FFI::TYPE_UINT16.size).to eq(2)

end

it "int32.size" do

expect(FFI::TYPE_INT32.size).to eq(4)

end

it "uint32.size" do

expect(FFI::TYPE_UINT32.size).to eq(4)

end

it "int64.size" do

expect(FFI::TYPE_INT64.size).to eq(8)

end

it "uint64.size" do

expect(FFI::TYPE_UINT64.size).to eq(8)

end

it "float.size" do

expect(FFI::TYPE_FLOAT32.size).to eq(4)

end

it "double.size" do

expect(FFI::TYPE_FLOAT64.size).to eq(8)

end

[ 0, 127, -128, -1 ].each do |i|

it ":char call(:char (#{i}))" do

expect(LibTest.ret_s8(i)).to eq(i)

end

end

[ 0, 0x7f, 0x80, 0xff ].each do |i|

it ":uchar call(:uchar (#{i}))" do

expect(LibTest.ret_u8(i)).to eq(i)

end

end

[ 0, 0x7fff, -0x8000, -1 ].each do |i|

it ":short call(:short (#{i}))" do

expect(LibTest.ret_s16(i)).to eq(i)

end

end

[ 0, 0x7fff, 0x8000, 0xffff ].each do |i|

it ":ushort call(:ushort (#{i}))" do

expect(LibTest.ret_u16(i)).to eq(i)

end

end

[ 0, 0x7fffffff, -0x80000000, -1 ].each do |i|

it ":int call(:int (#{i}))" do

expect(LibTest.ret_s32(i)).to eq(i)

end

end

[ 0, 0x7fffffff, 0x80000000, 0xffffffff ].each do |i|

it ":uint call(:uint (#{i}))" do

expect(LibTest.ret_u32(i)).to eq(i)

end

end

[ 0, 0x7fffffffffffffff, -0x8000000000000000, -1 ].each do |i|

it ":long_long call(:long_long (#{i}))" do

expect(LibTest.ret_s64(i)).to eq(i)

end

end

[ 0, 0x7fffffffffffffff, 0x8000000000000000, 0xffffffffffffffff ].each do |i|

it ":ulong_long call(:ulong_long (#{i}))" do

expect(LibTest.ret_u64(i)).to eq(i)

end

end

if FFI::Platform::LONG_SIZE == 32

[ 0, 0x7fffffff, -0x80000000, -1 ].each do |i|

it ":long call(:long (#{i}))" do

expect(LibTest.ret_long(i)).to eq(i)

end

end

[ 0, 0x7fffffff, 0x80000000, 0xffffffff ].each do |i|

it ":ulong call(:ulong (#{i}))" do

expect(LibTest.ret_ulong(i)).to eq(i)

end

end

else

[ 0, 0x7fffffffffffffff, -0x8000000000000000, -1 ].each do |i|

it ":long call(:long (#{i}))" do

expect(LibTest.ret_long(i)).to eq(i)

end

end

[ 0, 0x7fffffffffffffff, 0x8000000000000000, 0xffffffffffffffff ].each do |i|

it ":ulong call(:ulong (#{i}))" do

expect(LibTest.ret_ulong(i)).to eq(i)

end

end

[ 0.0, 0.1, 1.1, 1.23 ].each do |f|

it ":float call(:double (#{f}))" do

LibTest.set_float(f)

expect((LibTest.get_float - f).abs).to be < 0.001

end

end

[ 0.0, 0.1, 1.1, 1.23 ].each do |f|

it ":double call(:double (#{f}))" do

LibTest.set_double(f)

expect((LibTest.get_double - f).abs).to be < 0.001

end

end

end

end

# range checks are not yet supported on TruffleRuby

describe "Integer parameter range checking" do

[ 128, -129 ].each do |i|

it ":char call(:char (#{i}))" do

expect { expect(LibTest.ret_s8(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }

end

end

[ -1, 256 ].each do |i|

it ":uchar call(:uchar (#{i}))" do

expect { expect(LibTest.ret_u8(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }

end

end

[ 0x8000, -0x8001 ].each do |i|

it ":short call(:short (#{i}))" do

expect { expect(LibTest.ret_s16(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }

end

end

[ -1, 0x10000 ].each do |i|

it ":ushort call(:ushort (#{i}))" do

expect { expect(LibTest.ret_u16(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }

end

end

[ 0x80000000, -0x80000001 ].each do |i|

it ":int call(:int (#{i}))" do

expect { expect(LibTest.ret_s32(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }

end

end

[ -1, 0x100000000 ].each do |i|

it ":uint call(:uint (#{i}))" do

expect { expect(LibTest.ret_u32(i)).to eq(i) }.to raise_error(Exception) { |error| expect([RSpec::Expectations::ExpectationNotMetError, RangeError]).to be_include(error.class) }

end

end

end if RUBY_ENGINE != "truffleruby"

describe "Three different size Integer arguments" do

TYPE_MAP = {

's8' => :char, 'u8' => :uchar, 's16' => :short, 'u16' => :ushort,

's32' => :int, 'u32' => :uint, 's64' => :long_long, 'u64' => :ulong_long,

'sL' => :long, 'uL' => :ulong, 'f32' => :float, 'f64' => :double

}

TYPES = TYPE_MAP.keys

module LibTest

extend FFI::Library

ffi_lib TestLibrary::PATH

[ 's32', 'u32', 's64', 'u64' ].each do |rt|

TYPES.each do |t1|

TYPES.each do |t2|

TYPES.each do |t3|

begin

attach_function "pack_#{t1}#{t2}#{t3}_#{rt}",

[ TYPE_MAP[t1], TYPE_MAP[t2], TYPE_MAP[t3], :buffer_out ], :void

rescue FFI::NotFoundError

end

end

end

end

end

end

PACK_VALUES = {

's8' => [ 0x12 ],

'u8' => [ 0x34 ],

's16' => [ 0x5678 ],

'u16' => [ 0x9abc ],

's32' => [ 0x7654321f ],

'u32' => [ 0xfee1babe ],

'sL' => [ 0x1f2e3d4c ],

'uL' => [ 0xf7e8d9ca ],

's64' => [ 0x1eafdeadbeefa1b2 ],

# 'f32' => [ 1.234567 ],

'f64' => [ 9.87654321 ]

}

def verify(p, off, t, v)

if t == 'f32'

expect(p.get_float32(off)).to eq(v)

elsif t == 'f64'

expect(p.get_float64(off)).to eq(v)

else

expect(p.get_int64(off)).to eq(v)

end

end

PACK_VALUES.keys.each do |t1|

PACK_VALUES.keys.each do |t2|

PACK_VALUES.keys.each do |t3|

PACK_VALUES[t1].each do |v1|

PACK_VALUES[t2].each do |v2|

PACK_VALUES[t3].each do |v3|

it "call(#{TYPE_MAP[t1]} (#{v1}), #{TYPE_MAP[t2]} (#{v2}), #{TYPE_MAP[t3]} (#{v3}))" do

p = FFI::Buffer.new :long_long, 3

LibTest.send("pack_#{t1}#{t2}#{t3}_s64", v1, v2, v3, p)

verify(p, 0, t1, v1)

verify(p, 8, t2, v2)

verify(p, 16, t3, v3)

end

end

end

end

end

end

end

end