timeless-partialeq

PartialEq, but ignores timestamps, ideal for API testing

This crate provides a custom derive macro TimelessPartialEq that allows you to implement PartialEq for structs while ignoring fields ending with _at.

Usage

First, add TimelessPartialEq as a dependency.

cargo add timeless-partialeq

Then, derive TimelessPartialEq for your struct:

use timeless_partialeq::TimelessPartialEq;

#[derive(Debug, TimelessPartialEq)]
pub struct Post {
    pub id: i64,
    pub content: String,
    pub author: i32,
    pub created_at: DateTime<Utc>,
    pub updated_at: Option<DateTime<Utc>>,
}

This will generate an implementation of PartialEq that ignores the fields ending with _at, while still checking for Option's outer None & Some values.

Limitations

Currently, it only assert fields (or should I say it does not assert) that end with _at, thus requiring that your structs are forced to be defined that way. It would be a great addition to the current tests if we could check that struct fields that are renamed with another derive proc macro (e.g. a struct that represents a SQLx table fields) also work with TimelessPartialEq.