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Is there a Unit-Testing Story #489

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eiswind opened this issue Feb 7, 2023 · 2 comments
Closed

Is there a Unit-Testing Story #489

eiswind opened this issue Feb 7, 2023 · 2 comments
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question Further information is requested

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@eiswind
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eiswind commented Feb 7, 2023

Do you have any plans on supporting unit-tests for components?
None of the current Rust Web-Frameworks I have seen has this, it a pity.
@gbj gbj added the question Further information is requested label Feb 7, 2023
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gbj commented Feb 7, 2023

The end-to-end testing story is pretty good, using wasm-pack test (which as I understand it is now incorporated into cargo test --target=wasm32-unknown-unknown) which uses a headless browser. You can see an example of integration tests for a Leptos app in our counters example (in the tests directory). (cargo-leptos also comes with built in e2e testing via Playwright, although I haven't explored it too much.)

Unit tests for components in any browser-based framework are quite hard, because it usually means spinning up a headless browser or using something like JSDOM which doesn't necessarily precisely emulate real browsers anyway.

Take a look at the example of testing for the counter app. If there are specific improvements you think could be made to how we're enabling testing, let me know!

@gbj gbj mentioned this issue Feb 11, 2023
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gbj added a commit that referenced this issue Feb 12, 2023
@gbj
Add docs on testing (closes #489)
ae7433c
@gbj gbj closed this as completed in db3f46c Feb 12, 2023
@eiswind
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eiswind commented Feb 13, 2023

The new docs look great!

fundon added a commit to fundon/leptos that referenced this issue Feb 14, 2023
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Merge branch 'main' into integrate-viz
d206a88 
* main:
  Reexport `web-sys` event types in `leptos::ev` to make it easier to type handlers (leptos-rs#521)
  fix: correct namespace for `Unit` in empty views (closes leptos-rs#518) (leptos-rs#520)
  leptos_dom erros.rs remove<E>() does not need to be generic. (leptos-rs#516)
  `0.2.0-alpha` (leptos-rs#515)
  remove `.unwrap()` from `redirect` in Actix integration (leptos-rs#514)
  do not unwrap use_context in integrations axum redirect (leptos-rs#513)
  CI: fix Wasm testing (leptos-rs#511)
  fix: SSR export in Wasm mode (leptos-rs#512)
  fix: import in `leptos_dom` and add Wasm build to CI for regressions (leptos-rs#510)
  Typos and a small cleanup (leptos-rs#509)
  change: reorganize module exports and reexports (leptos-rs#503)
  Add docs on testing (closes leptos-rs#489) (leptos-rs#508)
gbj added a commit that referenced this issue Mar 21, 2023
@gbj
Add docs on testing (closes #489) (#508)
f8e8465
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