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Edit File: test_gem_ext_configure_builder.rb

require 'rubygems/test_case'
require 'rubygems/ext'

class TestGemExtConfigureBuilder < Gem::TestCase

def setup
    super

@makefile_body =  "all:\n\t@echo ok\ninstall:\n\t@echo ok"

@ext = File.join @tempdir, 'ext'
    @dest_path = File.join @tempdir, 'prefix'

FileUtils.mkdir_p @ext
    FileUtils.mkdir_p @dest_path
  end

def test_self_build
    skip("test_self_build skipped on MS Windows (VC++)") if vc_windows?

File.open File.join(@ext, './configure'), 'w' do |configure|
      configure.puts "#!/bin/sh\necho \"#{@makefile_body}\" > Makefile"
    end

output = []

Dir.chdir @ext do
      Gem::Ext::ConfigureBuilder.build nil, nil, @dest_path, output
    end

assert_equal "sh ./configure --prefix=#{@dest_path}", output.shift
    assert_equal "", output.shift
    assert_equal make_command, output.shift
    assert_match(/^ok$/m, output.shift)
    assert_equal make_command + " install", output.shift
    assert_match(/^ok$/m, output.shift)
  end

def test_self_build_fail
    skip("test_self_build_fail skipped on MS Windows (VC++)") if vc_windows?
    output = []

error = assert_raises Gem::InstallError do
      Dir.chdir @ext do
        Gem::Ext::ConfigureBuilder.build nil, nil, @dest_path, output
      end
    end

shell_error_msg = %r{(\./configure: .*)|(Can't open \./configure(?:: No such file or directory)?)}
    sh_prefix_configure = "sh ./configure --prefix="

expected = %r(configure failed:

#{Regexp.escape sh_prefix_configure}#{Regexp.escape @dest_path}
.*?: #{shell_error_msg}
)

assert_match expected, error.message

assert_equal "#{sh_prefix_configure}#{@dest_path}", output.shift
    assert_match %r(#{shell_error_msg}), output.shift
    assert_equal true, output.empty?
  end

def test_self_build_has_makefile
    if vc_windows? && !nmake_found?
      skip("test_self_build_has_makefile skipped - nmake not found")
    end

File.open File.join(@ext, 'Makefile'), 'w' do |makefile|
      makefile.puts @makefile_body
    end

output = []
    Dir.chdir @ext do
      Gem::Ext::ConfigureBuilder.build nil, nil, @dest_path, output
    end

assert_equal make_command, output[0]
    assert_equal "#{make_command} install", output[2]
  end

end

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