Test builder for CMakeLists.txt

test/rubygems/test_gem_ext_cmake_builder.rb

@@ -0,0 +1,81 @@
+require 'rubygems/test_case'
+require 'rubygems/ext'
+
+class TestGemExtCmakeBuilder < Gem::TestCase
+
+  def setup
+    super
+
+
+    @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
+    File.open File.join(@ext, 'CMakeLists.txt'), 'w' do |cmakelists|
+      cmakelists.write <<-eo_cmake
+cmake_minimum_required(VERSION 2.8)
+install (FILES test.txt DESTINATION bin)
+      eo_cmake
+    end
+    File.open File.join(@ext, 'test.txt'), 'w' do |testfile|
+    end
+
+    output = []
+
+    Dir.chdir @ext do
+      Gem::Ext::CmakeBuilder.build nil, nil, @dest_path, output
+    end
+
+    assert_equal "cmake . -DCMAKE_INSTALL_PREFIX=#{@dest_path}", output.shift
+    assert_match(/#{@ext}/, output.shift)
+    assert_equal make_command, output.shift
+    assert_equal "", output.shift
+    assert_equal make_command + " install", output.shift
+    assert_match(/test\.txt/, output.shift)
+  end
+
+  def test_self_build_fail
+    output = []
+
+    error = assert_raises Gem::InstallError do
+      Dir.chdir @ext do
+        Gem::Ext::CmakeBuilder.build nil, nil, @dest_path, output
+      end
+    end
+
+    shell_error_msg = %r{(CMake Error: .*)}
+    sh_prefix_cmake = "cmake . -DCMAKE_INSTALL_PREFIX="
+
+    expected = %r(cmake failed:
+
+#{Regexp.escape sh_prefix_cmake}#{Regexp.escape @dest_path}
+#{shell_error_msg}
+)
+
+    assert_match expected, error.message
+
+    assert_equal "#{sh_prefix_cmake}#{@dest_path}", output.shift
+    assert_match %r(#{shell_error_msg}), output.shift
+    assert_equal true, output.empty?
+  end
+
+  def test_self_build_has_makefile
+    File.open File.join(@ext, 'Makefile'), 'w' do |makefile|
+      makefile.puts "all:\n\t@echo ok\ninstall:\n\t@echo ok"
+    end
+
+    output = []
+    Dir.chdir @ext do
+      Gem::Ext::CmakeBuilder.build nil, nil, @dest_path, output
+    end
+
+    assert_equal make_command, output[0]
+    assert_equal "#{make_command} install", output[2]
+  end
+
+end
+