commit | a420137dc48e96c90d2e846f2741de771c1aee60 | [log] [tgz] |
---|---|---|
author | Jeff Vander Stoep <jeffv@google.com> | Mon Feb 05 23:53:39 2024 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Mon Feb 05 23:53:39 2024 +0000 |
tree | 441740faf26afb9045263f16a15c9519476b5911 | |
parent | d97a0370cf221aaf59c9d9f5060f2861ea0e479a [diff] | |
parent | 57c1b1d01866400095be731b221b81d275d6fa89 [diff] |
Upgrade serde_test to 1.0.176 am: 57c1b1d018 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/serde_test/+/2949320 Change-Id: Ie67e484609bc1fb034c1318824ac640b53f39a25 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This crate provides a convenient concise way to write unit tests for implementations of Serialize
and Deserialize
.
The Serialize
impl for a value can be characterized by the sequence of Serializer
calls that are made in the course of serializing the value, so serde_test
provides a [Token
] abstraction which corresponds roughly to Serializer
method calls. There is an [assert_ser_tokens
] function to test that a value serializes to a particular sequence of method calls, an [assert_de_tokens
] function to test that a value can be deserialized from a particular sequence of method calls, and an [assert_tokens
] function to test both directions. There are also functions to test expected failure conditions.
Here is an example from the linked-hash-map
crate.
use linked_hash_map::LinkedHashMap; use serde_test::{assert_tokens, Token}; #[test] fn test_ser_de_empty() { let map = LinkedHashMap::<char, u32>::new(); assert_tokens( &map, &[ Token::Map { len: Some(0) }, Token::MapEnd, ], ); } #[test] fn test_ser_de() { let mut map = LinkedHashMap::new(); map.insert('b', 20); map.insert('a', 10); map.insert('c', 30); assert_tokens( &map, &[ Token::Map { len: Some(3) }, Token::Char('b'), Token::I32(20), Token::Char('a'), Token::I32(10), Token::Char('c'), Token::I32(30), Token::MapEnd, ], ); }