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

require_relative '../../spec_helper'

describe "Kernel#=~" 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 =~ true).should       be_nil
    end
  end

  ruby_version_is "2.6" do
    it "is deprecated" do
      -> do
        Object.new =~ /regexp/
      end.should complain(/deprecated Object#=~ is called on Object/, verbose: true)
    end
  end
end