| 1 | import rand |
| 2 | |
| 3 | interface Sample { |
| 4 | mut: |
| 5 | get_next() int |
| 6 | } |
| 7 | |
| 8 | struct SampleA { |
| 9 | mut: |
| 10 | state int |
| 11 | } |
| 12 | |
| 13 | fn (mut sample SampleA) get_next() int { |
| 14 | sample.state++ |
| 15 | return sample.state |
| 16 | } |
| 17 | |
| 18 | struct SampleB { |
| 19 | mut: |
| 20 | state int = 1 |
| 21 | } |
| 22 | |
| 23 | fn (mut sample SampleB) get_next() int { |
| 24 | sample.state += 2 |
| 25 | return sample.state |
| 26 | } |
| 27 | |
| 28 | fn create_sampler() Sample { |
| 29 | return if rand.intn(1) or { 0 } == 0 { Sample(SampleA{}) } else { Sample(SampleB{}) } |
| 30 | } |
| 31 | |
| 32 | fn test_if_cond_with_option() { |
| 33 | mut sample := create_sampler() |
| 34 | mut ret := sample.get_next() |
| 35 | println(ret) |
| 36 | assert ret == 1 |
| 37 | |
| 38 | ret = sample.get_next() |
| 39 | println(ret) |
| 40 | assert ret == 2 |
| 41 | } |
| 42 | |