1 require File.dirname(__FILE__) + '/abstract_unit'
2 require File.join(File.dirname(File.dirname(__FILE__)), 'lib/active_support/caching_tools.rb')
4 class HashCachingTests < Test::Unit::TestCase
6 return @cached if defined?(@cached)
8 @cached_class = Class.new(&proc)
9 @cached_class.class_eval do
10 extend ActiveSupport::CachingTools::HashCaching
11 hash_cache :slow_method
13 @cached = @cached_class.new
16 def test_cache_access_should_call_method
18 def slow_method(a) raise "I should be here: #{a}"; end
20 assert_raises(RuntimeError) { cached.slow_method_cache[1] }
23 def test_cache_access_should_actually_cache
27 if @x.include?(a) then raise "Called twice for #{a}!"
34 assert_equal 11, cached.slow_method_cache[10]
35 assert_equal 12, cached.slow_method_cache[11]
36 assert_equal 11, cached.slow_method_cache[10]
37 assert_equal 12, cached.slow_method_cache[11]
40 def test_cache_should_be_clearable
47 assert_equal 1, cached.slow_method_cache[:a]
48 assert_equal 2, cached.slow_method_cache[:b]
49 assert_equal 3, cached.slow_method_cache[:c]
51 assert_equal 1, cached.slow_method_cache[:a]
52 assert_equal 2, cached.slow_method_cache[:b]
53 assert_equal 3, cached.slow_method_cache[:c]
55 cached.slow_method_cache.clear
57 assert_equal 4, cached.slow_method_cache[:a]
58 assert_equal 5, cached.slow_method_cache[:b]
59 assert_equal 6, cached.slow_method_cache[:c]
62 def test_deep_caches_should_work_too
64 def slow_method(a, b, c)
68 assert_equal 3, cached.slow_method_cache[1][1][1]
69 assert_equal 7, cached.slow_method_cache[1][2][4]
70 assert_equal 7, cached.slow_method_cache[1][2][4]
71 assert_equal 7, cached.slow_method_cache[4][2][1]
74 1 => {1 => {1 => 3}, 2 => {4 => 7}},
75 4 => {2 => {1 => 7}}},
76 cached.slow_method_cache