describe :integer_ceil_precision, shared: true do
  context "precision is zero" do
    it "returns integer self" do
      send(@method, 0).ceil(0).should.eql?(0)
      send(@method, 123).ceil(0).should.eql?(123)
      send(@method, -123).ceil(0).should.eql?(-123)
    end
  end

  context "precision is positive" do
    it "returns self" do
      send(@method, 0).ceil(1).should.eql?(send(@method, 0))
      send(@method, 0).ceil(10).should.eql?(send(@method, 0))

      send(@method, 123).ceil(10).should.eql?(send(@method, 123))
      send(@method, -123).ceil(10).should.eql?(send(@method, -123))
    end
  end

  context "precision is negative" do
    it "always returns 0 when self is 0" do
      send(@method, 0).ceil(-1).should.eql?(0)
      send(@method, 0).ceil(-10).should.eql?(0)
    end

    it "returns largest integer less than self with at least precision.abs trailing zeros" do
      send(@method, 123).ceil(-1).should.eql?(130)
      send(@method, 123).ceil(-2).should.eql?(200)
      send(@method, 123).ceil(-3).should.eql?(1000)

      send(@method, -123).ceil(-1).should.eql?(-120)
      send(@method, -123).ceil(-2).should.eql?(-100)
      send(@method, -123).ceil(-3).should.eql?(0)
    end

    ruby_bug "#20654", ""..."3.4" do
      it "returns 10**precision.abs when precision.abs is larger than the number digits of self" do
        send(@method, 123).ceil(-20).should.eql?(100000000000000000000)
        send(@method, 123).ceil(-50).should.eql?(100000000000000000000000000000000000000000000000000)
      end
    end
  end
end