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# frozen_string_literal: true
begin
require_relative 'helper'
rescue LoadError
end
class TestFiddle < Fiddle::TestCase
def test_nil_true_etc
if ffi_backend?
omit("Fiddle::Q* aren't supported with FFI backend")
end
assert_equal Fiddle::Qtrue, Fiddle.dlwrap(true)
assert_equal Fiddle::Qfalse, Fiddle.dlwrap(false)
assert_equal Fiddle::Qnil, Fiddle.dlwrap(nil)
assert Fiddle::Qundef
end
def test_windows_constant
require 'rbconfig'
if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/
assert Fiddle::WINDOWS, "Fiddle::WINDOWS should be 'true' on Windows platforms"
else
refute Fiddle::WINDOWS, "Fiddle::WINDOWS should be 'false' on non-Windows platforms"
end
end
def test_dlopen_linker_script_input_linux
omit("This is only for Linux") unless RUBY_PLATFORM.match?("linux")
if Dir.glob("/usr/lib{,64}/**/libncurses.so").empty?
omit("libncurses.so is needed")
end
if ffi_backend?
omit("Fiddle::Handle#file_name doesn't exist in FFI backend")
end
# libncurses.so uses INPUT() on Debian GNU/Linux and Arch Linux:
#
# Debian GNU/Linux:
#
# $ cat /usr/lib/x86_64-linux-gnu/libncurses.so
# INPUT(libncurses.so.6 -ltinfo)
#
# Arch Linux:
# $ cat /usr/lib/libncurses.so
# INPUT(-lncursesw)
handle = Fiddle.dlopen("libncurses.so")
begin
# /usr/lib/x86_64-linux-gnu/libncurses.so.6 ->
# libncurses.so.6
normalized_file_name = File.basename(handle.file_name)
# libncurses.so.6 ->
# libncurses.so
#
# libncursesw.so ->
# libncursesw.so
normalized_file_name = normalized_file_name.sub(/\.so(\.\d+)+\z/, ".so")
# libncurses.so ->
# libncurses.so
#
# libncursesw.so ->
# libncurses.so
normalized_file_name = normalized_file_name.sub(/ncursesw/, "ncurses")
assert_equal("libncurses.so", normalized_file_name)
ensure
handle.close
end
end
def test_dlopen_linker_script_group_linux
omit("This is only for Linux") unless RUBY_PLATFORM.match?("linux")
if ffi_backend?
omit("Fiddle::Handle#file_name doesn't exist in FFI backend")
end
# libc.so uses GROUP() on Debian GNU/Linux
# $ cat /usr/lib/x86_64-linux-gnu/libc.so
# /* GNU ld script
# Use the shared library, but some functions are only in
# the static library, so try that secondarily. */
# OUTPUT_FORMAT(elf64-x86-64)
# GROUP ( /lib/x86_64-linux-gnu/libc.so.6 /usr/lib/x86_64-linux-gnu/libc_nonshared.a AS_NEEDED ( /lib64/ld-linux-x86-64.so.2 ) )
handle = Fiddle.dlopen("libc.so")
begin
assert_equal("libc.so",
File.basename(handle.file_name, ".*").gsub(/\.so.\d+/,'.so'))
ensure
handle.close
end
end
end if defined?(Fiddle)
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