require_relative '../../spec_helper'
require_relative 'fixtures/example_class'

require 'yaml'

describe "Object#to_yaml" do

  it "returns the YAML representation of an Array object" do
    %w( 30 ruby maz irb 99 ).to_yaml.gsub("'", '"').should match_yaml("--- \n- \"30\"\n- ruby\n- maz\n- irb\n- \"99\"\n")
  end

  it "returns the YAML representation of a Hash object" do
    { "a" => "b"}.to_yaml.should match_yaml("--- \na: b\n")
  end

  it "returns the YAML representation of an object" do
    YAMLSpecs::Example.new("baz").to_yaml.should match_yaml("--- !ruby/object:YAMLSpecs::Example\nname: baz\n")
  end

  it "returns the YAML representation of a Class object" do
    YAMLSpecs::Example.to_yaml.should match_yaml("--- !ruby/class 'YAMLSpecs::Example'\n")
  end

  it "returns the YAML representation of a Module object" do
    Enumerable.to_yaml.should match_yaml("--- !ruby/module 'Enumerable'\n")
  end

  it "returns the YAML representation of a Date object" do
    require 'date'
    Date.new(1997, 12, 30).to_yaml.should match_yaml("--- 1997-12-30\n")
  end

  it "returns the YAML representation of a FalseClass" do
    false_klass = false
    false_klass.should be_kind_of(FalseClass)
    false_klass.to_yaml.should match_yaml("--- false\n")
  end

  it "returns the YAML representation of a Float object" do
    float = 1.2
    float.should be_kind_of(Float)
    float.to_yaml.should match_yaml("--- 1.2\n")
  end

  it "returns the YAML representation of an Integer object" do
    int = 20
    int.should be_kind_of(Integer)
    int.to_yaml.should match_yaml("--- 20\n")
  end

  it "returns the YAML representation of a NilClass object" do
    nil_klass = nil
    nil_klass.should be_kind_of(NilClass)
    nil_klass.to_yaml.should match_yaml("--- \n")
  end

  it "returns the YAML representation of a RegExp object" do
    Regexp.new('^a-z+:\\s+\w+').to_yaml.should match_yaml("--- !ruby/regexp /^a-z+:\\s+\\w+/\n")
  end

  it "returns the YAML representation of a String object" do
    "I love Ruby".to_yaml.should match_yaml("--- I love Ruby\n")
  end

  it "returns the YAML representation of a Struct object" do
    Person = Struct.new(:name, :gender)
    Person.new("Jane", "female").to_yaml.should match_yaml("--- !ruby/struct:Person\nname: Jane\ngender: female\n")
  ensure
    Object.send(:remove_const, :Person)
  end

  it "returns the YAML representation of an unnamed Struct object" do
    person = Struct.new(:name, :gender)
    person.new("Jane", "female").to_yaml.should match_yaml("--- !ruby/struct\nname: Jane\ngender: female\n")
  end

  it "returns the YAML representation of a Symbol object" do
    :symbol.to_yaml.should match_yaml("--- :symbol\n")
  end

  it "returns the YAML representation of a Time object" do
    Time.utc(2000,"jan",1,20,15,1).to_yaml.sub(/\.0+/, "").should match_yaml("--- 2000-01-01 20:15:01 Z\n")
  end

  it "returns the YAML representation of a TrueClass" do
    true_klass = true
    true_klass.should be_kind_of(TrueClass)
    true_klass.to_yaml.should match_yaml("--- true\n")
  end

  it "returns the YAML representation of a Error object" do
    StandardError.new("foobar").to_yaml.should match_yaml("--- !ruby/exception:StandardError\nmessage: foobar\nbacktrace: \n")
  end

  it "returns the YAML representation for Range objects" do
    yaml = Range.new(1,3).to_yaml
    yaml.include?("!ruby/range").should be_true
    yaml.include?("begin: 1").should be_true
    yaml.include?("end: 3").should be_true
    yaml.include?("excl: false").should be_true
  end

  it "returns the YAML representation of numeric constants" do
    nan_value.to_yaml.downcase.should match_yaml("--- .nan\n")
    infinity_value.to_yaml.downcase.should match_yaml("--- .inf\n")
    (-infinity_value).to_yaml.downcase.should match_yaml("--- -.inf\n")
    (0.0).to_yaml.should match_yaml("--- 0.0\n")
  end

  it "returns the YAML representation of an array of hashes" do
    players = [{"a" => "b"}, {"b" => "c"}]
    players.to_yaml.should match_yaml("--- \n- a: b\n- b: c\n")
  end
end
