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Add a better API for updating settings in the SettingsStore in tests

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This commit is contained in:
Max Brunsfeld 2023-05-11 14:39:43 -07:00
parent bc5b78198a
commit 9ae10a5dd9
3 changed files with 42 additions and 23 deletions
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10
crates/settings/src/settings_file.rs
View file

@ -172,12 +172,10 @@ pub fn update_settings_file<T: Setting>(
})
.await?;
let edits = cx.read(|cx| cx.global::<SettingsStore>().update::<T>(&old_text, update));
let mut new_text = old_text;
for (range, replacement) in edits.into_iter().rev() {
new_text.replace_range(range, &replacement);
}
let new_text = cx.read(|cx| {
cx.global::<SettingsStore>()
.new_text_for_update::<T>(old_text, update)
});
cx.background()
.spawn(async move { fs.atomic_write(paths::SETTINGS.clone(), new_text).await })

43
crates/settings/src/settings_store.rs
View file

@ -184,22 +184,43 @@ impl SettingsStore {
this
}
/// Override the global value for a particular setting.
/// Update the value of a setting in the user's global configuration.
///
/// This is only for tests. Normally, settings are only loaded from
/// JSON files.
#[cfg(any(test, feature = "test-support"))]
pub fn replace_value<T: Setting>(&mut self, value: T) {
self.setting_values
.get_mut(&TypeId::of::<T>())
.unwrap_or_else(|| panic!("unregistered setting type {}", type_name::<T>()))
.set_global_value(Box::new(value))
pub fn update_user_settings<T: Setting>(
&mut self,
cx: &AppContext,
update: impl FnOnce(&mut T::FileContent),
) {
let old_text = if let Some(user_settings) = &self.user_deserialized_settings {
serde_json::to_string(&user_settings.untyped).unwrap()
} else {
String::new()
};
let new_text = self.new_text_for_update::<T>(old_text, update);
self.set_user_settings(&new_text, cx).unwrap();
}
/// Update the value of a setting.
///
/// Returns a list of edits to apply to the JSON file.
pub fn update<T: Setting>(
/// Update the value of a setting in a JSON file, returning the new text
/// for that JSON file.
pub fn new_text_for_update<T: Setting>(
&self,
old_text: String,
update: impl FnOnce(&mut T::FileContent),
) -> String {
let edits = self.edits_for_update::<T>(&old_text, update);
let mut new_text = old_text;
for (range, replacement) in edits.into_iter().rev() {
new_text.replace_range(range, &replacement);
}
new_text
}
/// Update the value of a setting in a JSON file, returning a list
/// of edits to apply to the JSON file.
pub fn edits_for_update<T: Setting>(
&self,
text: &str,
update: impl FnOnce(&mut T::FileContent),
@ -1129,7 +1150,7 @@ mod tests {
cx: &mut AppContext,
) {
store.set_user_settings(&old_json, cx).ok();
let edits = store.update::<T>(&old_json, update);
let edits = store.edits_for_update::<T>(&old_json, update);
let mut new_json = old_json;
for (range, replacement) in edits.into_iter().rev() {
new_json.replace_range(range, &replacement);

12
crates/vim/src/test/vim_test_context.rs
View file

@ -21,8 +21,8 @@ impl<'a> VimTestContext<'a> {
search::init(cx);
crate::init(cx);
cx.update_global(|store: &mut SettingsStore, _| {
store.replace_value(VimModeSetting(enabled));
cx.update_global(|store: &mut SettingsStore, cx| {
store.update_user_settings::<VimModeSetting>(cx, |s| *s = Some(enabled));
});
settings::KeymapFileContent::load("keymaps/vim.json", cx).unwrap();
@ -53,16 +53,16 @@ impl<'a> VimTestContext<'a> {
pub fn enable_vim(&mut self) {
self.cx.update(|cx| {
cx.update_global(|store: &mut SettingsStore, _| {
store.replace_value(VimModeSetting(true))
cx.update_global(|store: &mut SettingsStore, cx| {
store.update_user_settings::<VimModeSetting>(cx, |s| *s = Some(true));
});
})
}
pub fn disable_vim(&mut self) {
self.cx.update(|cx| {
cx.update_global(|store: &mut SettingsStore, _| {
store.replace_value(VimModeSetting(false))
cx.update_global(|store: &mut SettingsStore, cx| {
store.update_user_settings::<VimModeSetting>(cx, |s| *s = Some(false));
});
})
}