Contents

require "spec_helper"

module Fonte
  module Parsers
    describe NumberParser do
      let(:parser) { described_class.new }

      subject { parser.parse(number).value }

      describe "integer" do
        context "decimal" do
          context "positive" do
            let(:number) { "42" }
            it { should == 42 }
          end

          context "negative" do
            let(:number) { "-3" }
            it { should == -3 }
          end
        end

        context "hexadecimal" do
          context "positive" do
            let(:number) { "0xff" }
            it { should == 255 }
          end

          context "negative" do
            let(:number) { "-0XFF" }
            it { should == -255 }
          end
        end

        context "binary" do
          context "positive" do
            let(:number) { "0b110" }
            it { should == 6 }
          end

          context "negative" do
            let(:number) { "-0B110" }
            it { should == -6 }
          end
        end
      end

      describe "floating point" do
        describe "standard notation" do
          context "positive" do
            let(:number) { "10.3"}
            it { should == 10.3 }
          end

          context "negative" do
            let(:number) { "-43.21" }
            it { should == -43.21 }
          end

          context "just decimal points" do
            let(:number) { ".21" }
            it { should == 0.21 }
          end
        end

        describe "scientific notation" do
          context "with positive expoent" do
            let(:number) { "5e4" }
            it { should == 50000.0 }
          end

          context "with negative expoent" do
            let(:number) { "2.2E-4" }
            it { should == 0.00022 }
          end
        end
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
fonte-0.1.0	spec/parsers/number_parser_spec.rb
fonte-0.0.1	spec/parsers/number_parser_spec.rb