require 'minitest/autorun'
require 'minitest/unit'
require 'mocha/mini_test'
require './test/helper.rb'

class TestDocument < Minitest::Test

  Document = CouchPillow::Document

  def mock_time
    return @time if @time
    @time = Time.now
    Time.stubs(:now).returns(@time)
    @time
  end


  def setup
    CouchPillow.db = FakeCouchbaseServer.new
  end


  def test_create
    d = Document.new
    d.save!
  end


  def test_timestamp
    d = Document.new({}, "1")
    d.save!
    assert d.created_at
    assert d.updated_at
  end


  def test_type
    d = Document.new({}, "1")
    assert_equal "default", d._type
  end


  def test_type_subclasses
    d = Class.new(Document) do
      type 'test'
    end.new
    assert_equal "test", d._type
  end


  def test_validate_presence
    d = Class.new(Document) do
      validate_presence :xyz
    end.new
    assert_raises Document::ValidationError do
      d.save!
    end

    d.xyz = 10
    d.save!
  end


  def test_validate_type
    d = Class.new(Document) do
      validate_type     :abc, Hash
    end.new

    d.abc = "other type"
    assert_raises Document::ValidationError do
      d.save!
    end

    d.abc = { :hello => "world" }
    d.save!
  end


  def test_validate_custom
    d = Class.new(Document) do
      validate :xyz, "must be Numeric", lambda { |v| v.is_a? Numeric }
    end.new
    d.xyz = "string"
    assert_raises Document::ValidationError do
      d.save!
    end

    d.xyz = {}
    assert_raises Document::ValidationError do
      d.save!
    end

    d.xyz = 123
    d.save!
  end


  def test_to_json
    mock_time
    d = Document.new({}, "1")
    assert_equal "{\"_id\":\"1\",\"created_at\":\"#{mock_time.to_s}\",\"_type\":\"default\"}", d.to_json
  end
  

  def test_brackets
    d = Document.new({})
    d[123] = 'test'
    assert_equal 'test', d[123]

    d['foo'] = 'bar'
    assert_equal 'bar', d[:foo]

    d[:stuff] = [ 'john', 'mary' ]
    assert_equal ['john', 'mary'], d[:stuff]

    assert_equal nil, d[:something_else]
  end


  def test_rename_keys
    d = Class.new(Document) do
      rename :foo, :bar
    end.new( { :foo => 123, :other => 'abc' } )
    assert_equal 123, d[:bar]
    assert_equal 123, d.bar
    assert_equal nil, d[:foo]
    refute d.respond_to?(:foo)
    assert_equal 'abc', d.other
  end


  def test_rename_keys_reserved_keys
    assert_raises ArgumentError do
      d = Class.new(Document) do
        rename :_id, :bad
      end.new
    end

    assert_raises ArgumentError do
      d = Class.new(Document) do
        rename :_type, :err
      end.new
    end

    assert_raises ArgumentError do
      d = Class.new(Document) do
        rename :created_at, :err
      end.new
    end

    assert_raises ArgumentError do
      d = Class.new(Document) do
        rename :bla, :updated_at
      end.new
    end
  end


  def test_get_returns_nil
    CouchPillow.db.expects(:get).with('123').returns(nil)
    d = Document.get('123')
    assert_equal nil, d
  end

end