1 files changed, 75 insertions, 0 deletions
diff --git a/test/rubygems/test_gem_commands_build_command.rb b/test/rubygems/test_gem_commands_build_command.rb
new file mode 100644
index 0000000000..f1fd1503ba
--- /dev/null
+++ b/test/rubygems/test_gem_commands_build_command.rb
@@ -0,0 +1,75 @@
+require 'test/unit'
+require File.join(File.expand_path(File.dirname(__FILE__)), 'gemutilities')
+require 'rubygems/commands/build_command'
+require 'rubygems/format'
+
+class TestGemCommandsBuildCommand < RubyGemTestCase
+
+  def setup
+    super
+
+    @cmd = Gem::Commands::BuildCommand.new
+  end
+
+  def test_execute
+    gem = quick_gem 'some_gem'
+
+    gemspec_file = File.join(@tempdir, "#{gem.full_name}.gemspec")
+
+    File.open gemspec_file, 'w' do |gs|
+      gs.write gem.to_ruby
+    end
+
+    util_test_build_gem gem, gemspec_file
+  end
+
+  def test_execute_yaml
+    gem = quick_gem 'some_gem'
+
+    gemspec_file = File.join(@tempdir, "#{gem.full_name}.gemspec")
+
+    File.open gemspec_file, 'w' do |gs|
+      gs.write gem.to_yaml
+    end
+
+    util_test_build_gem gem, gemspec_file
+  end
+
+  def test_execute_bad_gem
+    @cmd.options[:args] = %w[some_gem]
+    use_ui @ui do
+      @cmd.execute
+    end
+
+    assert_equal '', @ui.output
+    assert_equal "ERROR:  Gemspec file not found: some_gem\n", @ui.error
+  end
+
+  def util_test_build_gem(gem, gemspec_file)
+    @cmd.options[:args] = [gemspec_file]
+
+    use_ui @ui do
+      Dir.chdir @tempdir do
+        @cmd.execute
+      end
+    end
+
+    output = @ui.output.split "\n"
+    assert_equal "  Successfully built RubyGem", output.shift
+    assert_equal "  Name: some_gem", output.shift
+    assert_equal "  Version: 0.0.2", output.shift
+    assert_equal "  File: some_gem-0.0.2.gem", output.shift
+    assert_equal [], output
+    assert_equal '', @ui.error
+
+    gem_file = File.join @tempdir, "#{gem.full_name}.gem"
+    assert File.exist?(gem_file)
+
+    spec = Gem::Format.from_file_by_path(gem_file).spec
+
+    assert_equal "some_gem", spec.name
+    assert_equal "this is a summary", spec.summary
+  end
+
+end
+