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| 1 | +use candid::CandidType; |
| 2 | +use ic_cdk::api::stable::{ |
| 3 | + stable64_grow, stable64_read, stable64_size, stable64_write, stable_read, stable_write, |
| 4 | +}; |
| 5 | +use serde::{Deserialize, Serialize}; |
| 6 | + |
| 7 | +#[derive(Clone, Debug, Serialize, Deserialize, CandidType, PartialEq)] |
| 8 | +pub enum StableOperationResult { |
| 9 | + Size(u64), |
| 10 | + Grow { |
| 11 | + new_pages: u64, |
| 12 | + result: Result<u64, ()>, |
| 13 | + }, |
| 14 | + Read { |
| 15 | + start: u64, |
| 16 | + result: Vec<u8>, |
| 17 | + }, |
| 18 | + Write { |
| 19 | + start: u64, |
| 20 | + contents: Vec<u8>, |
| 21 | + }, |
| 22 | + Read32 { |
| 23 | + start: u32, |
| 24 | + result: Vec<u8>, |
| 25 | + }, |
| 26 | + Write32 { |
| 27 | + start: u32, |
| 28 | + contents: Vec<u8>, |
| 29 | + }, |
| 30 | +} |
| 31 | + |
| 32 | +impl StableOperationResult { |
| 33 | + pub fn perform_and_check(self) { |
| 34 | + match self { |
| 35 | + StableOperationResult::Size(expected_size) => { |
| 36 | + let result = stable64_size(); |
| 37 | + assert_eq!(expected_size, result); |
| 38 | + } |
| 39 | + StableOperationResult::Grow { new_pages, result } => { |
| 40 | + let initial_size = stable64_size(); |
| 41 | + let actual_result = stable64_grow(new_pages).map_err(|_| ()); |
| 42 | + assert_eq!(result, actual_result); |
| 43 | + let new_size = stable64_size(); |
| 44 | + if actual_result.is_ok() { |
| 45 | + assert_eq!(new_size, initial_size + new_pages); |
| 46 | + } else { |
| 47 | + assert_eq!(new_size, initial_size); |
| 48 | + } |
| 49 | + } |
| 50 | + StableOperationResult::Read { start, result } => { |
| 51 | + let mut actual_result = vec![0; result.len()]; |
| 52 | + stable64_read(start, &mut actual_result); |
| 53 | + assert_eq!(result, actual_result); |
| 54 | + } |
| 55 | + StableOperationResult::Write { start, contents } => { |
| 56 | + stable64_write(start, &contents); |
| 57 | + let mut result = vec![0; contents.len()]; |
| 58 | + stable64_read(start, &mut result); |
| 59 | + assert_eq!(contents, result); |
| 60 | + } |
| 61 | + StableOperationResult::Read32 { start, result } => { |
| 62 | + let mut actual_result = vec![0; result.len()]; |
| 63 | + stable_read(start, &mut actual_result); |
| 64 | + assert_eq!(result, actual_result); |
| 65 | + } |
| 66 | + StableOperationResult::Write32 { start, contents } => { |
| 67 | + stable_write(start, &contents); |
| 68 | + let mut result = vec![0; contents.len()]; |
| 69 | + stable_read(start, &mut result); |
| 70 | + assert_eq!(contents, result); |
| 71 | + } |
| 72 | + } |
| 73 | + } |
| 74 | +} |
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