+ @@known_locator = 'acbd18db4cc2f85cedef654fccc4a4d8+3'
+ @@known_token = 'hocfupkn2pjhrpgp2vxv8rsku7tvtx49arbc9s4bvu7p7wxqvk'
+ @@known_key = '13u9fkuccnboeewr0ne3mvapk28epf68a3bhj9q8sb4l6e4e5mkk' +
+ 'p6nhj2mmpscgu1zze5h5enydxfe3j215024u16ij4hjaiqs5u4pzsl3nczmaoxnc' +
+ 'ljkm4875xqn4xv058koz3vkptmzhyheiy6wzevzjmdvxhvcqsvr5abhl15c2d4o4' +
+ 'jhl0s91lojy1mtrzqqvprqcverls0xvy9vai9t1l1lvvazpuadafm71jl4mrwq2y' +
+ 'gokee3eamvjy8qq1fvy238838enjmy5wzy2md7yvsitp5vztft6j4q866efym7e6' +
+ 'vu5wm9fpnwjyxfldw3vbo01mgjs75rgo7qioh8z8ij7jpyp8508okhgbbex3ceei' +
+ '786u5rw2a9gx743dj3fgq2irk'
+ @@known_signed_locator = 'acbd18db4cc2f85cedef654fccc4a4d8+3' +
+ '+A257f3f5f5f0a4e4626a18fc74bd42ec34dcb228a@7fffffff'
+
+ test 'generate predictable invincible signature' do
+ signed = Blob.sign_locator @@known_locator, {
+ api_token: @@known_token,
+ key: @@known_key,
+ expire: 0x7fffffff,
+ }
+ assert_equal @@known_signed_locator, signed
+ end
+
+ test 'verify predictable invincible signature' do
+ assert_equal true, Blob.verify_signature!(@@known_signed_locator,
+ api_token: @@known_token,
+ key: @@known_key)
+ end
+