test/mkmf/test_have_library.rb


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# frozen_string_literal: false
require_relative 'base'
require 'tempfile'

class TestMkmfHaveLibrary < TestMkmf
  LIBRARY_NAME = 'mkmftest'
  HEADER_NAME = "#{LIBRARY_NAME}.h"
  FUNC_NAME = 'ruby_mkmftest_foo'
  ARPREFIX = config_string('LIBRUBY_A') {|lib| lib[/\A\w+/]}

  def create_library(libname = LIBRARY_NAME)
    lib = "#{ARPREFIX}#{libname}.#{$LIBEXT}"
    open(HEADER_NAME, "w") do |hdr|
      hdr.puts "void #{FUNC_NAME}(void);"
      hdr.puts "void #{FUNC_NAME}_fake(void);"
    end
    create_tmpsrc("#include \"#{HEADER_NAME}\"\n""void #{FUNC_NAME}(void) {}")
    assert(xsystem(cc_command), "compile failed: #{cc_command}")
    command = "#{CONFIG['AR']} #{config_string('ARFLAGS') || 'cru '}#{lib} #{CONFTEST}.#{$OBJEXT}"
    assert(xsystem(command), "making library failed: #{command}")
    File.unlink("#{CONFTEST}.#{$OBJEXT}")
    config_string('RANLIB') do |ranlib|
      command = "#{ranlib} #{lib}"
      assert(xsystem(command), "ranlib failed: #{command}")
    end
  end

  def assert_have_library(*args)
    assert_equal(true, have_library(LIBRARY_NAME, *args), MKMFLOG)
  end

  def assert_not_have_library(*args)
    assert_equal(false, have_library(LIBRARY_NAME, *args), MKMFLOG)
  end

  def test_have_library
    create_library
    assert_have_library
  end

  def test_have_library_with_name
    create_library
    assert_have_library(FUNC_NAME, HEADER_NAME)
  end

  def test_not_have_library
    assert_not_have_library
  end

  def test_not_have_library_with_name
    create_library
    assert_not_have_library("#{FUNC_NAME}_fake", HEADER_NAME)
  end
end