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require 'logger'
require 'abstract_unit'
require 'active_support/cache'
class CacheKeyTest < ActiveSupport::TestCase
def test_expand_cache_key
assert_equal 'name/1/2/true', ActiveSupport::Cache.expand_cache_key([1, '2', true], :name)
end
end
class CacheStoreSettingTest < ActiveSupport::TestCase
def test_file_fragment_cache_store
store = ActiveSupport::Cache.lookup_store :file_store, "/path/to/cache/directory"
assert_kind_of(ActiveSupport::Cache::FileStore, store)
assert_equal "/path/to/cache/directory", store.cache_path
end
def test_mem_cache_fragment_cache_store
MemCache.expects(:new).with(%w[localhost], {})
store = ActiveSupport::Cache.lookup_store :mem_cache_store, "localhost"
assert_kind_of(ActiveSupport::Cache::MemCacheStore, store)
end
def test_mem_cache_fragment_cache_store_with_given_mem_cache
mem_cache = MemCache.new
MemCache.expects(:new).never
store = ActiveSupport::Cache.lookup_store :mem_cache_store, mem_cache
assert_kind_of(ActiveSupport::Cache::MemCacheStore, store)
end
def test_mem_cache_fragment_cache_store_with_given_mem_cache_like_object
MemCache.expects(:new).never
memcache = Object.new
def memcache.get() true end
store = ActiveSupport::Cache.lookup_store :mem_cache_store, memcache
assert_kind_of(ActiveSupport::Cache::MemCacheStore, store)
end
def test_mem_cache_fragment_cache_store_with_multiple_servers
MemCache.expects(:new).with(%w[localhost 192.168.1.1], {})
store = ActiveSupport::Cache.lookup_store :mem_cache_store, "localhost", '192.168.1.1'
assert_kind_of(ActiveSupport::Cache::MemCacheStore, store)
end
def test_mem_cache_fragment_cache_store_with_options
MemCache.expects(:new).with(%w[localhost 192.168.1.1], { :namespace => "foo" })
store = ActiveSupport::Cache.lookup_store :mem_cache_store, "localhost", '192.168.1.1', :namespace => 'foo'
assert_kind_of(ActiveSupport::Cache::MemCacheStore, store)
end
def test_object_assigned_fragment_cache_store
store = ActiveSupport::Cache.lookup_store ActiveSupport::Cache::FileStore.new("/path/to/cache/directory")
assert_kind_of(ActiveSupport::Cache::FileStore, store)
assert_equal "/path/to/cache/directory", store.cache_path
end
end
class CacheStoreTest < ActiveSupport::TestCase
def setup
@cache = ActiveSupport::Cache.lookup_store(:memory_store)
end
def test_fetch_without_cache_miss
@cache.stubs(:read).with('foo', {}).returns('bar')
@cache.expects(:write).never
assert_equal 'bar', @cache.fetch('foo') { 'baz' }
end
def test_fetch_with_cache_miss
@cache.stubs(:read).with('foo', {}).returns(nil)
@cache.expects(:write).with('foo', 'baz', {})
assert_equal 'baz', @cache.fetch('foo') { 'baz' }
end
def test_fetch_with_forced_cache_miss
@cache.expects(:read).never
@cache.expects(:write).with('foo', 'bar', :force => true)
@cache.fetch('foo', :force => true) { 'bar' }
end
end
# Tests the base functionality that should be identical across all cache stores.
module CacheStoreBehavior
def test_should_read_and_write_strings
@cache.write('foo', 'bar')
assert_equal 'bar', @cache.read('foo')
end
def test_should_read_and_write_hash
@cache.write('foo', {:a => "b"})
assert_equal({:a => "b"}, @cache.read('foo'))
end
def test_should_read_and_write_integer
@cache.write('foo', 1)
assert_equal 1, @cache.read('foo')
end
def test_should_read_and_write_nil
@cache.write('foo', nil)
assert_equal nil, @cache.read('foo')
end
def test_fetch_without_cache_miss
@cache.write('foo', 'bar')
assert_equal 'bar', @cache.fetch('foo') { 'baz' }
end
def test_fetch_with_cache_miss
assert_equal 'baz', @cache.fetch('foo') { 'baz' }
end
def test_fetch_with_forced_cache_miss
@cache.fetch('foo', :force => true) { 'bar' }
end
def test_increment
@cache.write('foo', 1, :raw => true)
assert_equal 1, @cache.read('foo', :raw => true).to_i
assert_equal 2, @cache.increment('foo')
assert_equal 2, @cache.read('foo', :raw => true).to_i
assert_equal 3, @cache.increment('foo')
assert_equal 3, @cache.read('foo', :raw => true).to_i
end
def test_decrement
@cache.write('foo', 3, :raw => true)
assert_equal 3, @cache.read('foo', :raw => true).to_i
assert_equal 2, @cache.decrement('foo')
assert_equal 2, @cache.read('foo', :raw => true).to_i
assert_equal 1, @cache.decrement('foo')
assert_equal 1, @cache.read('foo', :raw => true).to_i
end
def test_exist
@cache.write('foo', 'bar')
assert @cache.exist?('foo')
assert !@cache.exist?('bar')
end
end
class FileStoreTest < ActiveSupport::TestCase
def setup
@cache = ActiveSupport::Cache.lookup_store(:file_store, Dir.pwd)
end
def teardown
File.delete("foo.cache")
end
include CacheStoreBehavior
def test_expires_in
time = Time.local(2008, 4, 24)
Time.stubs(:now).returns(time)
File.stubs(:mtime).returns(time)
@cache.write('foo', 'bar')
cache_read = lambda { @cache.read('foo', :expires_in => 60) }
assert_equal 'bar', cache_read.call
Time.stubs(:now).returns(time + 30)
assert_equal 'bar', cache_read.call
Time.stubs(:now).returns(time + 120)
assert_nil cache_read.call
end
end
class MemoryStoreTest < ActiveSupport::TestCase
def setup
@cache = ActiveSupport::Cache.lookup_store(:memory_store)
end
include CacheStoreBehavior
def test_store_objects_should_be_immutable
@cache.write('foo', 'bar')
assert_raise(ActiveSupport::FrozenObjectError) { @cache.read('foo').gsub!(/.*/, 'baz') }
assert_equal 'bar', @cache.read('foo')
end
def test_original_store_objects_should_not_be_immutable
bar = 'bar'
@cache.write('foo', bar)
assert_nothing_raised { bar.gsub!(/.*/, 'baz') }
end
end
uses_memcached 'memcached backed store' do
class MemCacheStoreTest < ActiveSupport::TestCase
def setup
@cache = ActiveSupport::Cache.lookup_store(:mem_cache_store)
@data = @cache.instance_variable_get(:@data)
@cache.clear
@cache.silence!
@cache.logger = Logger.new("/dev/null")
end
include CacheStoreBehavior
def test_store_objects_should_be_immutable
@cache.with_local_cache do
@cache.write('foo', 'bar')
@cache.read('foo').gsub!(/.*/, 'baz')
assert_equal 'bar', @cache.read('foo')
end
end
def test_stored_objects_should_not_be_frozen
@cache.with_local_cache do
@cache.write('foo', 'bar')
end
@cache.with_local_cache do
assert !@cache.read('foo').frozen?
end
end
def test_write_should_return_true_on_success
@cache.with_local_cache do
result = @cache.write('foo', 'bar')
assert_equal 'bar', @cache.read('foo') # make sure 'foo' was written
assert result
end
end
def test_local_writes_are_persistent_on_the_remote_cache
@cache.with_local_cache do
@cache.write('foo', 'bar')
end
assert_equal 'bar', @cache.read('foo')
end
def test_clear_also_clears_local_cache
@cache.with_local_cache do
@cache.write('foo', 'bar')
@cache.clear
assert_nil @cache.read('foo')
end
end
def test_local_cache_of_read_and_write
@cache.with_local_cache do
@cache.write('foo', 'bar')
@data.flush_all # Clear remote cache
assert_equal 'bar', @cache.read('foo')
end
end
def test_local_cache_should_read_and_write_integer
@cache.with_local_cache do
@cache.write('foo', 1)
assert_equal 1, @cache.read('foo')
end
end
def test_local_cache_of_delete
@cache.with_local_cache do
@cache.write('foo', 'bar')
@cache.delete('foo')
@data.flush_all # Clear remote cache
assert_nil @cache.read('foo')
end
end
def test_local_cache_of_exist
@cache.with_local_cache do
@cache.write('foo', 'bar')
@cache.instance_variable_set(:@data, nil)
@data.flush_all # Clear remote cache
assert @cache.exist?('foo')
end
end
def test_local_cache_of_increment
@cache.with_local_cache do
@cache.write('foo', 1, :raw => true)
@cache.increment('foo')
@data.flush_all # Clear remote cache
assert_equal 2, @cache.read('foo', :raw => true).to_i
end
end
def test_local_cache_of_decrement
@cache.with_local_cache do
@cache.write('foo', 1, :raw => true)
@cache.decrement('foo')
@data.flush_all # Clear remote cache
assert_equal 0, @cache.read('foo', :raw => true).to_i
end
end
def test_exist_with_nulls_cached_locally
@cache.with_local_cache do
@cache.write('foo', 'bar')
@cache.delete('foo')
assert !@cache.exist?('foo')
end
end
def test_multi_get
@cache.with_local_cache do
@cache.write('foo', 1)
@cache.write('goo', 2)
result = @cache.read_multi('foo', 'goo')
assert_equal({'foo' => 1, 'goo' => 2}, result)
end
end
def test_middleware
app = lambda { |env|
result = @cache.write('foo', 'bar')
assert_equal 'bar', @cache.read('foo') # make sure 'foo' was written
assert result
}
app = @cache.middleware.new(app)
app.call({})
end
def test_expires_in
result = @cache.write('foo', 'bar', :expires_in => 1)
assert_equal 'bar', @cache.read('foo')
sleep 2
assert_equal nil, @cache.read('foo')
end
def test_expires_in_with_invalid_value
@cache.write('baz', 'bat')
assert_raise(RuntimeError) do
@cache.write('foo', 'bar', :expires_in => 'Mon Jun 29 13:10:40 -0700 2150')
end
assert_equal 'bat', @cache.read('baz')
assert_equal nil, @cache.read('foo')
end
def test_delete_should_only_pass_key_to_data
key = 'foo'
@data.expects(:delete).with(key)
@cache.delete(key)
end
end
class CompressedMemCacheStore < ActiveSupport::TestCase
def setup
@cache = ActiveSupport::Cache.lookup_store(:compressed_mem_cache_store)
@cache.clear
end
include CacheStoreBehavior
end
end
class CacheStoreLoggerTest < ActiveSupport::TestCase
def setup
@cache = ActiveSupport::Cache.lookup_store(:memory_store)
@buffer = StringIO.new
@cache.logger = Logger.new(@buffer)
end
def test_logging
@cache.fetch('foo') { 'bar' }
assert @buffer.string.present?
end
def test_mute_logging
@cache.mute { @cache.fetch('foo') { 'bar' } }
assert @buffer.string.blank?
end
end
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