Sapphire

#######################################################################

# test_aref.rb

#

# Test suite for the Hash#[] instance method.

#######################################################################

require 'test/unit'

class Test_Hash_Aref_InstanceMethod < Test::Unit::TestCase

   def setup

      @hash = {:foo, 1, 'bar', 2, nil, 3, false, 4, 'foo', 5, 3.7, 6.0}

   end

   def test_aref_basic

      assert_respond_to(@hash, :[])

      assert_nothing_raised{ @hash['bar'] }

   end

   def test_aref

      assert_equal(1, @hash[:foo])

      assert_equal(2, @hash['bar'])

      assert_equal(3, @hash[nil])

      assert_equal(4, @hash[false])

      assert_equal(5, @hash['foo'])

      assert_equal(6.0, @hash[3.7])

      assert_equal(nil, @hash['bogus'])

   end

   def test_aref_slice

      assert_equal([1, 2], @hash[:foo, 'bar'])

      assert_equal([1, nil], @hash[:foo, 'bogus'])

   end

   def test_aref_expected_errors

      assert_raise(ArgumentError){ @hash[] }

   end

   def teardown

      @hash = nil

   end

end