ruby--ruby/spec/ruby/core/integer/ceil_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#ceil" do
  it_behaves_like(:integer_to_i, :ceil)
  it_behaves_like(:integer_rounding_positive_precision, :ceil)

  ruby_version_is "2.4" do
    context "precision argument specified as part of the ceil method is negative" do
      it "returns the smallest integer greater than self with at least precision.abs trailing zeros" do
        18.ceil(-1).should eql(20)
        18.ceil(-2).should eql(100)
        18.ceil(-3).should eql(1000)
        -1832.ceil(-1).should eql(-1830)
        -1832.ceil(-2).should eql(-1800)
        -1832.ceil(-3).should eql(-1000)
      end
    end
  end
end