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Diffstat (limited to 'activesupport/test/memoizable_test.rb')
-rw-r--r-- | activesupport/test/memoizable_test.rb | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/activesupport/test/memoizable_test.rb b/activesupport/test/memoizable_test.rb new file mode 100644 index 0000000000..fc24a2942d --- /dev/null +++ b/activesupport/test/memoizable_test.rb @@ -0,0 +1,49 @@ +require 'abstract_unit' + +uses_mocha 'Memoizable' do + class MemoizableTest < Test::Unit::TestCase + class Person + include ActiveSupport::Memoizable + + def name + fetch_name_from_floppy + end + memoize :name + + def age + nil + end + memoize :age + + private + def fetch_name_from_floppy + "Josh" + end + end + + def test_memoization + person = Person.new + assert_equal "Josh", person.name + + person.expects(:fetch_name_from_floppy).never + 2.times { assert_equal "Josh", person.name } + end + + def test_memoized_methods_are_frozen + person = Person.new + person.freeze + assert_equal "Josh", person.name + assert_equal true, person.name.frozen? + end + + def test_memoization_frozen_with_nil_value + person = Person.new + person.freeze + assert_equal nil, person.age + end + + def test_double_memoization + assert_raise(RuntimeError) { Person.memoize :name } + end + end +end |