File: provided_list_spec.rb

package info (click to toggle)
python-hypothesis 6.138.0-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 15,272 kB
  • sloc: python: 62,853; ruby: 1,107; sh: 253; makefile: 41; javascript: 6
file content (28 lines) | stat: -rw-r--r-- 635 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
# frozen_string_literal: true

RSpec.describe 'shrinking' do
  include Hypothesis::Debug
  include Hypothesis::Possibilities

  it 'finds a small list' do
    ls, = find { any(arrays(of: integers)).length >= 2 }
    expect(ls).to eq([0, 0])
  end

  it 'shrinks a list to its last element' do
    10.times do
      @original_target = nil

      ls, = find do
        v = any(arrays(of: integers))

        if v.length >= 5 && @original_target.nil? && v[-1] > 0
          @original_target = v
        end
        !@original_target.nil? && v && v[-1] == @original_target[-1]
      end

      expect(ls.length).to eq(1)
    end
  end
end