ruby--ruby/spec/ruby/core/nil/match_spec.rb

require_relative '../../spec_helper'

ruby_version_is "2.6" do
  describe "NilClass#=~" do
    it "returns nil matching any object" do
      o = Object.new

      suppress_warning do
        (o =~ /Object/).should   be_nil
        (o =~ 'Object').should   be_nil
        (o =~ Object).should     be_nil
        (o =~ Object.new).should be_nil
        (o =~ nil).should        be_nil
        (o =~ false).should      be_nil
        (o =~ true).should       be_nil
      end
    end

    it "should not warn" do
      -> { nil =~ /a/ }.should_not complain(verbose: true)
    end
  end
end