require_relative '../../spec_helper'
require_relative 'shared/to_i'
require_relative 'shared/integer_rounding'
require_relative 'shared/integer_ceil_precision'

describe "Integer#ceil" do
  it_behaves_like :integer_to_i, :ceil
  it_behaves_like :integer_rounding_positive_precision, :ceil

  context "with precision" do
    it_behaves_like :integer_ceil_precision, :Integer
  end

  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