Add `contains` test
Add `contains` test

Kingside/KeychainAccess,yzpniceboy/KeychainAccess,kishikawakatsumi/KeychainAccess,abunur/KeychainAccess,sonsongithub/KeychainAccess,BellAppLab/KeychainAccess,ikesyo/KeychainAccess,colemancda/KeychainAccess,yzpniceboy/KeychainAccess,tokorom/KeychainAccess,wimirwan/KeychainAccess,ishkawa/KeychainAccess,pengleelove/KeychainAccess,mspasov/KeychainAccess,ikesyo/KeychainAccess,msdgwzhy6/KeychainAccess,kishikawakatsumi/KeychainAccess,ishkawa/KeychainAccess,AnthonyMDev/KeychainAccess,xingyuniu/KeychainAccess,BellAppLab/KeychainAccess,wimirwan/KeychainAccess,xingyuniu/KeychainAccess,colemancda/KeychainAccess,abunur/KeychainAccess,pengleelove/KeychainAccess,AnthonyMDev/KeychainAccess,mspasov/KeychainAccess,ikesyo/KeychainAccess,kishikawakatsumi/KeychainAccess,tokorom/KeychainAccess,sonsongithub/KeychainAccess,usami-k/KeychainAccess,Kingside/KeychainAccess,sonsongithub/KeychainAccess,colemancda/KeychainAccess,msdgwzhy6/KeychainAccess,usami-k/KeychainAccess