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Co-authored-by: Raunak Raj <nkray21111983@gmail.com> Co-authored-by: Thorsten Ball <mrnugget@gmail.com> Co-authored-by: Bennet <bennet@zed.dev> Co-authored-by: Marshall Bowers <elliott.codes@gmail.com> Co-authored-by: Joseph T Lyons <JosephTLyons@gmail.com> Co-authored-by: Mikayla <mikayla@zed.dev> Co-authored-by: Jason <jason@zed.dev> Co-authored-by: Antonio Scandurra <me@as-cii.com> Co-authored-by: Max Brunsfeld <maxbrunsfeld@gmail.com> Co-authored-by: Marshall <marshall@zed.dev> Co-authored-by: Nathan Sobo <nathan@zed.dev> Co-authored-by: Jason Mancuso <7891333+jvmncs@users.noreply.github.com> Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
37 lines
1.6 KiB
Markdown
37 lines
1.6 KiB
Markdown
This contains the code for Zed's Vim emulation mode.
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Vim mode in Zed is supposed to primarily "do what you expect": it mostly tries to copy vim exactly, but will use Zed-specific functionality when available to make things smoother. This means Zed will never be 100% vim compatible, but should be 100% vim familiar!
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The backlog is maintained in the `#vim` channel notes.
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## Testing against Neovim
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If you are making a change to make Zed's behavior more closely match vim/nvim, you can create a test using the `NeovimBackedTestContext`.
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For example, the following test checks that Zed and Neovim have the same behavior when running `*` in visual mode:
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```rust
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#[gpui::test]
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async fn test_visual_star_hash(cx: &mut gpui::TestAppContext) {
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let mut cx = NeovimBackedTestContext::new(cx).await;
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cx.set_shared_state("ˇa.c. abcd a.c. abcd").await;
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cx.simulate_shared_keystrokes(["v", "3", "l", "*"]).await;
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cx.assert_shared_state("a.c. abcd ˇa.c. abcd").await;
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}
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```
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To keep CI runs fast, by default the neovim tests use a cached JSON file that records what neovim did (see crates/vim/test_data),
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but while developing this test you'll need to run it with the neovim flag enabled:
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```sh
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cargo test -p vim --features neovim test_visual_star_hash
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```
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This will run your keystrokes against a headless neovim and cache the results in the test_data directory.
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## Testing zed-only behavior
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Zed does more than vim/neovim in their default modes. The `VimTestContext` can be used instead. This lets you test integration with the language server and other parts of zed's UI that don't have a NeoVim equivalent.
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