icu_testdata

icu_testdata is a unit testing crate for [ICU4X].

The crate exposes a data provider with stable data useful for unit testing. The data is based on a CLDR tag and a short list of locales that, together, cover a range of scenarios.

There are four modes of operation, enabled by features: * static (default) exposes [get_postcard_provider]. * fs exposes [get_json_provider] * baked exposes [get_baked_provider]. * metadata exposes the [metadata] module which contains information such as the CLDR Gitref and the list of included locales.

However, clients should not generally choose a specific provider, but rather use [get_provider]. This is currently an alias for [get_postcard_provider], as it is fast and has few dependencies.

Re-generating the data

Downloading fresh CLDR data

bash $ cargo run --bin --features=bin icu4x-testdata-download-sources

Regenerating JSON and postcard data

bash $ cargo run --bin --features=bin icu4x-testdata-datagen

Examples

```rust use std::borrow::Cow; use icuprovider::prelude::*; use iculocid::locale;

let dataprovider = icutestdata::get_provider();

let data: DataPayload = dataprovider .loadresource(&DataRequest { options: locale!("ru").into(), metadata: Default::default(), }) .unwrap() .takepayload() .unwrap(); let rule = "v = 0 and i % 10 = 2..4 and i % 100 != 12..14".parse() .expect("Failed to parse plural rule"); asserteq!(data.get().few, Some(rule)); ```

More Information

For more information on development, authorship, contributing etc. please visit ICU4X home page.