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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 "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
FFI::TYPE_INT8.size.should eq 1
end
it "uint8.size" do
FFI::TYPE_UINT8.size.should eq 1
end
it "int16.size" do
FFI::TYPE_INT16.size.should eq 2
end
it "uint16.size" do
FFI::TYPE_UINT16.size.should eq 2
end
it "int32.size" do
FFI::TYPE_INT32.size.should eq 4
end
it "uint32.size" do
FFI::TYPE_UINT32.size.should eq 4
end
it "int64.size" do
FFI::TYPE_INT64.size.should eq 8
end
it "uint64.size" do
FFI::TYPE_UINT64.size.should eq 8
end
it "float.size" do
FFI::TYPE_FLOAT32.size.should eq 4
end
it "double.size" do
FFI::TYPE_FLOAT64.size.should eq 8
end
[ 0, 127, -128, -1 ].each do |i|
it ":char call(:char (#{i}))" do
LibTest.ret_s8(i).should eq i
end
end
[ 0, 0x7f, 0x80, 0xff ].each do |i|
it ":uchar call(:uchar (#{i}))" do
LibTest.ret_u8(i).should eq i
end
end
[ 0, 0x7fff, -0x8000, -1 ].each do |i|
it ":short call(:short (#{i}))" do
LibTest.ret_s16(i).should eq i
end
end
[ 0, 0x7fff, 0x8000, 0xffff ].each do |i|
it ":ushort call(:ushort (#{i}))" do
LibTest.ret_u16(i).should eq i
end
end
[ 0, 0x7fffffff, -0x80000000, -1 ].each do |i|
it ":int call(:int (#{i}))" do
LibTest.ret_s32(i).should eq i
end
end
[ 0, 0x7fffffff, 0x80000000, 0xffffffff ].each do |i|
it ":uint call(:uint (#{i}))" do
LibTest.ret_u32(i).should eq i
end
end
[ 0, 0x7fffffffffffffff, -0x8000000000000000, -1 ].each do |i|
it ":long_long call(:long_long (#{i}))" do
LibTest.ret_s64(i).should eq i
end
end
[ 0, 0x7fffffffffffffff, 0x8000000000000000, 0xffffffffffffffff ].each do |i|
it ":ulong_long call(:ulong_long (#{i}))" do
LibTest.ret_u64(i).should eq i
end
end
if FFI::Platform::LONG_SIZE == 32
[ 0, 0x7fffffff, -0x80000000, -1 ].each do |i|
it ":long call(:long (#{i}))" do
LibTest.ret_long(i).should eq i
end
end
[ 0, 0x7fffffff, 0x80000000, 0xffffffff ].each do |i|
it ":ulong call(:ulong (#{i}))" do
LibTest.ret_ulong(i).should eq i
end
end
else
[ 0, 0x7fffffffffffffff, -0x8000000000000000, -1 ].each do |i|
it ":long call(:long (#{i}))" do
LibTest.ret_long(i).should eq i
end
end
[ 0, 0x7fffffffffffffff, 0x8000000000000000, 0xffffffffffffffff ].each do |i|
it ":ulong call(:ulong (#{i}))" do
LibTest.ret_ulong(i).should 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)
(LibTest.get_float - f).abs.should < 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)
(LibTest.get_double - f).abs.should < 0.001
end
end
end
end
describe "Integer parameter range checking" do
[ 128, -129 ].each do |i|
it ":char call(:char (#{i}))" do
lambda { LibTest.ret_int8_t(i).should eq i }.should raise_error
end
end
[ -1, 256 ].each do |i|
it ":uchar call(:uchar (#{i}))" do
lambda { LibTest.ret_u_int8_t(i).should eq i }.should raise_error
end
end
[ 0x8000, -0x8001 ].each do |i|
it ":short call(:short (#{i}))" do
lambda { LibTest.ret_int16_t(i).should eq i }.should raise_error
end
end
[ -1, 0x10000 ].each do |i|
it ":ushort call(:ushort (#{i}))" do
lambda { LibTest.ret_u_int16_t(i).should eq i }.should raise_error
end
end
[ 0x80000000, -0x80000001 ].each do |i|
it ":int call(:int (#{i}))" do
lambda { LibTest.ret_int32_t(i).should eq i }.should raise_error
end
end
[ -1, 0x100000000 ].each do |i|
it ":ushort call(:ushort (#{i}))" do
lambda { LibTest.ret_u_int32_t(i).should eq i }.should raise_error
end
end
end
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'
p.get_float32(off).should eq v
elsif t == 'f64'
p.get_float64(off).should eq v
else
p.get_int64(off).should 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
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