When rubygems/test_case is required the default user interaction is a MockGemUi.

Module that defines the default UserInteraction. Any class including this module will have access to the uimethod that returns the default UI.

Methods
U
Class Public methods
ui()

Return the default UI.

# File lib/rubygems/user_interaction.rb, line 22
def self.ui
  @ui ||= Gem::ConsoleUI.new
end
ui=(new_ui)

Set the default UI. If the default UI is never explicitly set, a simple console based UserInteraction will be used automatically.

# File lib/rubygems/user_interaction.rb, line 30
def self.ui=(new_ui)
  @ui = new_ui
end
use_ui(new_ui)

Use new_uifor the duration of block.

# File lib/rubygems/user_interaction.rb, line 37
def self.use_ui(new_ui)
  old_ui = @ui
  @ui = new_ui
  yield
ensure
  @ui = old_ui
end
Instance Public methods
ui()

See ::ui

# File lib/rubygems/user_interaction.rb, line 48
def ui
  Gem::DefaultUserInteraction.ui
end
ui=(new_ui)

See ::ui=

# File lib/rubygems/user_interaction.rb, line 55
def ui=(new_ui)
  Gem::DefaultUserInteraction.ui = new_ui
end
use_ui(new_ui, &block)

See ::use_ui

# File lib/rubygems/user_interaction.rb, line 62
def use_ui(new_ui, &block)
  Gem::DefaultUserInteraction.use_ui(new_ui, &block)
end