require 'spec_helper'
require 'mspec/expectations/expectations'
require 'mspec/matchers'

describe BeKindOfMatcher do
  it "matches when actual is a kind_of? expected" do
    BeKindOfMatcher.new(Numeric).matches?(1).should == true
    BeKindOfMatcher.new(Integer).matches?(2).should == true
    BeKindOfMatcher.new(Regexp).matches?(/m/).should == true
  end

  it "does not match when actual is not a kind_of? expected" do
    BeKindOfMatcher.new(Integer).matches?(1.5).should == false
    BeKindOfMatcher.new(String).matches?(:a).should == false
    BeKindOfMatcher.new(Hash).matches?([]).should == false
  end

  it "provides a useful failure message" do
    matcher = BeKindOfMatcher.new(Numeric)
    matcher.matches?('string')
    matcher.failure_message.should == [
      "Expected \"string\" (String)", "to be kind of Numeric"]
  end

  it "provides a useful negative failure message" do
    matcher = BeKindOfMatcher.new(Numeric)
    matcher.matches?(4.0)
    matcher.negative_failure_message.should == [
      "Expected 4.0 (Float)", "not to be kind of Numeric"]
  end
end