# Credits to Danny Ryan (Ethereum Foundation)
---

title: Shuffling Algorithm Tests
summary: Test vectors for shuffling a list based upon a seed using `shuffle`
test_suite: shuffle
fork: tchaikovsky
version: 1.0

test_cases:
- config:
    validator_count: 100
    cycle_length: 8
    shard_count: 32
    min_committee_size: 8
- input: []
  output: []
  seed: !!binary ""
- name: boring_list
  description: List with a single element, 0
  input: [0]
  output: [0]
  seed: !!binary ""
- input: [255]
  output: [255]
  seed: !!binary ""
- input: [4, 6, 2, 6, 1, 4, 6, 2, 1, 5]
  output: [2, 1, 6, 1, 4, 5, 6, 4, 6, 2]
  seed: !!binary ""
- input: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
  output: [4, 9, 1, 13, 8, 3, 5, 10, 7, 6, 11, 2, 12]
  seed: !!binary ""
- input: [65, 6, 2, 6, 1, 4, 6, 2, 1, 5]
  output: [6, 1, 2, 2, 6, 6, 1, 5, 65, 4]
  seed: !!binary |
    JlAYJ5H2j8g7PLiPHZI/rTS1uAvKiieOrifPN6Moso0=
- input: [35, 6, 2, 6, 1, 4, 6, 2, 1, 5, 7, 98, 3, 2, 11]
  output: [35, 1, 6, 4, 6, 6, 5, 11, 2, 3, 7, 1, 2, 2, 98]
  seed: !!binary |
    VGhlIHF1aWNrIGJyb3duIGZveCBqdW1wcyBvdmVyIDEzIGxhenkgZG9ncy4=
- input: [35, 6, 2, 6, 1, 4, 6, 2, 1, 5, 7, 98, 3, 2, 11]
  output: [98, 6, 6, 11, 5, 35, 2, 7, 2, 6, 4, 2, 1, 3, 1]
  seed: !!binary |
    rDTbe23J4UA0yLIurjbJqk49VcavAC0Nysas+l5MlwvLc0B/JqQ=