128 lines
3.7 KiB
Ruby
128 lines
3.7 KiB
Ruby
# frozen_string_literal: true
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begin
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require_relative 'helper'
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rescue LoadError
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end
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module Fiddle
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class TestFunc < TestCase
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def test_random
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f = Function.new(@libc['srand'], [-TYPE_LONG], TYPE_VOID)
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assert_nil f.call(10)
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end
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def test_sinf
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begin
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f = Function.new(@libm['sinf'], [TYPE_FLOAT], TYPE_FLOAT)
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rescue Fiddle::DLError
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skip "libm may not have sinf()"
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end
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assert_in_delta 1.0, f.call(90 * Math::PI / 180), 0.0001
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end
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def test_sin
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f = Function.new(@libm['sin'], [TYPE_DOUBLE], TYPE_DOUBLE)
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assert_in_delta 1.0, f.call(90 * Math::PI / 180), 0.0001
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end
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def test_string
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stress, GC.stress = GC.stress, true
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f = Function.new(@libc['strcpy'], [TYPE_VOIDP, TYPE_VOIDP], TYPE_VOIDP)
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buff = +"000"
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str = f.call(buff, "123")
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assert_equal("123", buff)
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assert_equal("123", str.to_s)
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ensure
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GC.stress = stress
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end
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def test_isdigit
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f = Function.new(@libc['isdigit'], [TYPE_INT], TYPE_INT)
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r1 = f.call(?1.ord)
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r2 = f.call(?2.ord)
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rr = f.call(?r.ord)
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assert_operator r1, :>, 0
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assert_operator r2, :>, 0
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assert_equal 0, rr
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end
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def test_atof
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f = Function.new(@libc['atof'], [TYPE_VOIDP], TYPE_DOUBLE)
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r = f.call("12.34")
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assert_includes(12.00..13.00, r)
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end
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def test_strtod
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f = Function.new(@libc['strtod'], [TYPE_VOIDP, TYPE_VOIDP], TYPE_DOUBLE)
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buff1 = Pointer["12.34"]
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buff2 = buff1 + 4
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r = f.call(buff1, - buff2)
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assert_in_delta(12.34, r, 0.001)
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end
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def test_qsort1
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cb = Class.new(Closure) {
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def call(x, y)
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Pointer.new(x)[0] <=> Pointer.new(y)[0]
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end
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}.new(TYPE_INT, [TYPE_VOIDP, TYPE_VOIDP])
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qsort = Function.new(@libc['qsort'],
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[TYPE_VOIDP, TYPE_SIZE_T, TYPE_SIZE_T, TYPE_VOIDP],
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TYPE_VOID)
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buff = "9341"
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qsort.call(buff, buff.size, 1, cb)
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assert_equal("1349", buff)
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bug4929 = '[ruby-core:37395]'
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buff = "9341"
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EnvUtil.under_gc_stress {qsort.call(buff, buff.size, 1, cb)}
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assert_equal("1349", buff, bug4929)
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end
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def test_snprintf
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unless Fiddle.const_defined?("TYPE_VARIADIC")
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skip "libffi doesn't support variadic arguments"
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end
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if Fiddle::WINDOWS
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snprintf_name = "_snprintf"
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else
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snprintf_name = "snprintf"
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end
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begin
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snprintf_pointer = @libc[snprintf_name]
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rescue Fiddle::DLError
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skip "Can't find #{snprintf_name}: #{$!.message}"
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end
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snprintf = Function.new(snprintf_pointer,
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[
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TYPE_VOIDP,
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TYPE_SIZE_T,
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TYPE_VOIDP,
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TYPE_VARIADIC,
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],
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TYPE_INT)
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output_buffer = " " * 1024
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output = Pointer[output_buffer]
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written = snprintf.call(output,
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output.size,
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"int: %d, string: %.*s\n",
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TYPE_INT, -29,
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TYPE_INT, 4,
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TYPE_VOIDP, "Hello")
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assert_equal("int: -29, string: Hell\n",
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output_buffer[0, written])
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written = snprintf.call(output,
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output.size,
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"string: %.*s, uint: %u\n",
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TYPE_INT, 2,
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TYPE_VOIDP, "Hello",
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TYPE_INT, 29)
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assert_equal("string: He, uint: 29\n",
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output_buffer[0, written])
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end
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end
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end if defined?(Fiddle)
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