* SilentUI tests.

test/rubygems/test_gem_silent_ui.rb

@@ -0,0 +1,113 @@
+require 'rubygems/test_case'
+require 'rubygems/user_interaction'
+require 'timeout'
+
+class TestGemSilentUI < Gem::TestCase
+
+  def setup
+    super
+    @sui = Gem::SilentUI.new
+  end
+
+  def test_ask
+    value = nil
+    out, err = capture_io do
+      use_ui @sui do
+        value = @sui.ask 'Problem?'
+      end
+    end
+
+    assert_empty out, 'No output'
+    assert_empty err, 'No output'
+
+    assert_nil value, 'No value'
+  end
+
+  def test_ask_for_password
+    value = nil
+    out, err = capture_io do
+      use_ui @sui do
+        value = @sui.ask_for_password 'Problem?'
+      end
+    end
+
+    assert_empty out, 'No output'
+    assert_empty err, 'No output'
+
+    assert_nil value, 'No value'
+  end
+
+  def test_ask_yes_no
+    value = nil
+    out, err = capture_io do
+      use_ui @sui do
+        assert_raises(Gem::OperationNotSupportedError) do
+          @sui.ask_yes_no 'Problem?'
+        end
+      end
+    end
+
+    assert_empty out, 'No output'
+    assert_empty err, 'No output'
+
+    out, err = capture_io do
+      use_ui @sui do
+        value = @sui.ask_yes_no 'Problem?', true
+      end
+    end
+
+    assert_empty out, 'No output'
+    assert_empty err, 'No output'
+
+    assert value, 'Value is true'
+
+    out, err = capture_io do
+      use_ui @sui do
+        value = @sui.ask_yes_no 'Problem?', false
+      end
+    end
+
+    assert_empty out, 'No output'
+    assert_empty err, 'No output'
+
+    assert_equal value, false, 'Value is false'
+  end
+
+  def test_choose_from_list
+    value = nil
+    out, err = capture_io do
+      use_ui @sui do
+        value = @sui.choose_from_list 'Problem?', %w[yes no]
+      end
+    end
+
+    assert_empty out, 'No output'
+    assert_empty err, 'No output'
+
+    assert_equal [nil, nil], value, 'Value is nil!'
+  end
+
+  def test_progress_reporter
+    value = nil
+    out, err = capture_io do
+      use_ui @sui do
+        @sui.progress_reporter 10, 'hi'
+      end
+    end
+
+    assert_empty out, 'No output'
+    assert_empty err, 'No output'
+  end
+
+  def test_download_reporter
+    value = nil
+    out, err = capture_io do
+      use_ui @sui do
+        @sui.download_reporter.fetch 'a.gem', 1024
+      end
+    end
+
+    assert_empty out, 'No output'
+    assert_empty err, 'No output'
+  end
+end