ruby--ruby/spec/ruby/core/integer/truncate_spec.rb

require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../shared/to_i', __FILE__)
require File.expand_path('../shared/integer_rounding', __FILE__)

describe "Integer#truncate" do
  it_behaves_like(:integer_to_i, :truncate)
  it_behaves_like(:integer_rounding_positive_precision, :truncate)

  ruby_version_is "2.4" do
    context "precision argument specified as part of the truncate method is negative" do
      it "returns an integer with at least precision.abs trailing zeros" do
        1832.truncate(-1).should eql(1830)
        1832.truncate(-2).should eql(1800)
        1832.truncate(-3).should eql(1000)
        -1832.truncate(-1).should eql(-1830)
        -1832.truncate(-2).should eql(-1800)
        -1832.truncate(-3).should eql(-1000)
      end
    end
  end
end