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|
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as assert from 'assert';
import { timeout } from 'vs/base/common/async';
import { DisposableStore } from 'vs/base/common/lifecycle';
import { runWithFakedTimers } from 'vs/base/test/common/timeTravelScheduler';
import { ensureNoDisposablesAreLeakedInTestSuite } from 'vs/base/test/common/utils';
import { Range } from 'vs/editor/common/core/range';
import { InlineCompletionsProvider, InlineCompletionTriggerKind } from 'vs/editor/common/languages';
import { ILanguageFeaturesService } from 'vs/editor/common/services/languageFeatures';
import { LanguageFeaturesService } from 'vs/editor/common/services/languageFeaturesService';
import { ViewModel } from 'vs/editor/common/viewModel/viewModelImpl';
import { SharedInlineCompletionCache } from 'vs/editor/contrib/inlineCompletions/browser/ghostTextModel';
import { InlineCompletionsModel } from 'vs/editor/contrib/inlineCompletions/browser/inlineCompletionsModel';
import { GhostTextContext, MockInlineCompletionsProvider } from 'vs/editor/contrib/inlineCompletions/test/browser/utils';
import { ITestCodeEditor, TestCodeEditorInstantiationOptions, withAsyncTestCodeEditor } from 'vs/editor/test/browser/testCodeEditor';
import { createTextModel } from 'vs/editor/test/common/testTextModel';
import { ServiceCollection } from 'vs/platform/instantiation/common/serviceCollection';
import { inlineCompletionToGhostText } from '../../browser/inlineCompletionToGhostText';
suite('Inline Completions', () => {
ensureNoDisposablesAreLeakedInTestSuite();
suite('inlineCompletionToGhostText', () => {
function getOutput(text: string, suggestion: string): unknown {
const rangeStartOffset = text.indexOf('[');
const rangeEndOffset = text.indexOf(']') - 1;
const cleanedText = text.replace('[', '').replace(']', '');
const tempModel = createTextModel(cleanedText);
const range = Range.fromPositions(tempModel.getPositionAt(rangeStartOffset), tempModel.getPositionAt(rangeEndOffset));
const options = ['prefix', 'subword'] as const;
const result = {} as any;
for (const option of options) {
result[option] = inlineCompletionToGhostText(
{ insertText: suggestion, filterText: suggestion, snippetInfo: undefined, range, additionalTextEdits: [], },
tempModel,
option
)?.render(cleanedText, true);
}
tempModel.dispose();
if (new Set(Object.values(result)).size === 1) {
return Object.values(result)[0];
}
return result;
}
test('Basic', () => {
assert.deepStrictEqual(getOutput('[foo]baz', 'foobar'), 'foo[bar]baz');
assert.deepStrictEqual(getOutput('[aaa]aaa', 'aaaaaa'), 'aaa[aaa]aaa');
assert.deepStrictEqual(getOutput('[foo]baz', 'boobar'), undefined);
assert.deepStrictEqual(getOutput('[foo]foo', 'foofoo'), 'foo[foo]foo');
assert.deepStrictEqual(getOutput('foo[]', 'bar\nhello'), 'foo[bar\nhello]');
});
test('Empty ghost text', () => {
assert.deepStrictEqual(getOutput('[foo]', 'foo'), 'foo');
});
test('Whitespace (indentation)', () => {
assert.deepStrictEqual(getOutput('[ foo]', 'foobar'), ' foo[bar]');
assert.deepStrictEqual(getOutput('[\tfoo]', 'foobar'), '\tfoo[bar]');
assert.deepStrictEqual(getOutput('[\t foo]', '\tfoobar'), ' foo[bar]');
assert.deepStrictEqual(getOutput('[\tfoo]', '\t\tfoobar'), { prefix: undefined, subword: '\t[\t]foo[bar]' });
assert.deepStrictEqual(getOutput('[\t]', '\t\tfoobar'), '\t[\tfoobar]');
assert.deepStrictEqual(getOutput('\t[]', '\t'), '\t[\t]');
assert.deepStrictEqual(getOutput('\t[\t]', ''), '\t\t');
assert.deepStrictEqual(getOutput('[ ]', 'return 1'), ' [return 1]');
});
test('Whitespace (outside of indentation)', () => {
assert.deepStrictEqual(getOutput('bar[ foo]', 'foobar'), undefined);
assert.deepStrictEqual(getOutput('bar[\tfoo]', 'foobar'), undefined);
});
test('Unsupported cases', () => {
assert.deepStrictEqual(getOutput('foo[\n]', '\n'), undefined);
});
test('Multi Part Diffing', () => {
assert.deepStrictEqual(getOutput('foo[()]', '(x);'), { prefix: undefined, subword: 'foo([x])[;]' });
assert.deepStrictEqual(getOutput('[\tfoo]', '\t\tfoobar'), { prefix: undefined, subword: '\t[\t]foo[bar]' });
assert.deepStrictEqual(getOutput('[(y ===)]', '(y === 1) { f(); }'), { prefix: undefined, subword: '(y ===[ 1])[ { f(); }]' });
assert.deepStrictEqual(getOutput('[(y ==)]', '(y === 1) { f(); }'), { prefix: undefined, subword: '(y ==[= 1])[ { f(); }]' });
assert.deepStrictEqual(getOutput('[(y ==)]', '(y === 1) { f(); }'), { prefix: undefined, subword: '(y ==[= 1])[ { f(); }]' });
});
test('Multi Part Diffing 1', () => {
assert.deepStrictEqual(getOutput('[if () ()]', 'if (1 == f()) ()'), { prefix: undefined, subword: 'if ([1 == f()]) ()' });
});
test('Multi Part Diffing 2', () => {
assert.deepStrictEqual(getOutput('[)]', '())'), ({ prefix: undefined, subword: "[(])[)]" }));
assert.deepStrictEqual(getOutput('[))]', '(())'), ({ prefix: undefined, subword: "[((]))" }));
});
});
test('Does not trigger automatically if disabled', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider, inlineSuggest: { enabled: false } },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('foo');
await timeout(1000);
// Provider is not called, no ghost text is shown.
assert.deepStrictEqual(provider.getAndClearCallHistory(), []);
assert.deepStrictEqual(context.getAndClearViewStates(), ['']);
}
);
});
test('Ghost text is shown after trigger', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('foo');
provider.setReturnValue({ insertText: 'foobar', range: new Range(1, 1, 1, 4) });
model.trigger(InlineCompletionTriggerKind.Explicit);
await timeout(1000);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,4)', text: 'foo', triggerKind: 1, }
]);
assert.deepStrictEqual(context.getAndClearViewStates(), ['', 'foo[bar]']);
}
);
});
test('Ghost text is shown automatically when configured', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider, inlineSuggest: { enabled: true } },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('foo');
provider.setReturnValue({ insertText: 'foobar', range: new Range(1, 1, 1, 4) });
await timeout(1000);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,4)', text: 'foo', triggerKind: 0, }
]);
assert.deepStrictEqual(context.getAndClearViewStates(), ['', 'foo[bar]']);
}
);
});
test('Ghost text is updated automatically', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
provider.setReturnValue({ insertText: 'foobar', range: new Range(1, 1, 1, 4) });
context.keyboardType('foo');
model.trigger(InlineCompletionTriggerKind.Explicit);
await timeout(1000);
provider.setReturnValue({ insertText: 'foobizz', range: new Range(1, 1, 1, 6) });
context.keyboardType('b');
context.keyboardType('i');
await timeout(1000);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,4)', text: 'foo', triggerKind: 1, },
{ position: '(1,6)', text: 'foobi', triggerKind: 0, }
]);
assert.deepStrictEqual(
context.getAndClearViewStates(),
['', 'foo[bar]', 'foob[ar]', 'foobi', 'foobi[zz]']
);
}
);
});
test('Unindent whitespace', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType(' ');
provider.setReturnValue({ insertText: 'foo', range: new Range(1, 2, 1, 3) });
model.trigger(InlineCompletionTriggerKind.Explicit);
await timeout(1000);
assert.deepStrictEqual(context.getAndClearViewStates(), ['', ' [foo]']);
model.commitCurrentSuggestion();
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,3)', text: ' ', triggerKind: 1, },
]);
assert.deepStrictEqual(context.getAndClearViewStates(), [' foo']);
}
);
});
test('Unindent tab', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('\t\t');
provider.setReturnValue({ insertText: 'foo', range: new Range(1, 2, 1, 3) });
model.trigger(InlineCompletionTriggerKind.Explicit);
await timeout(1000);
assert.deepStrictEqual(context.getAndClearViewStates(), ['', '\t\t[foo]']);
model.commitCurrentSuggestion();
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,3)', text: '\t\t', triggerKind: 1, },
]);
assert.deepStrictEqual(context.getAndClearViewStates(), ['\tfoo']);
}
);
});
test('No unindent after indentation', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('buzz ');
provider.setReturnValue({ insertText: 'foo', range: new Range(1, 6, 1, 7) });
model.trigger(InlineCompletionTriggerKind.Explicit);
await timeout(1000);
assert.deepStrictEqual(context.getAndClearViewStates(), ['', 'buzz ']);
model.commitCurrentSuggestion();
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,7)', text: 'buzz ', triggerKind: 1, },
]);
assert.deepStrictEqual(context.getAndClearViewStates(), []);
}
);
});
test('Next/previous', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('foo');
provider.setReturnValue({ insertText: 'foobar1', range: new Range(1, 1, 1, 4) });
model.trigger(InlineCompletionTriggerKind.Automatic);
await timeout(1000);
assert.deepStrictEqual(
context.getAndClearViewStates(),
['', 'foo[bar1]']
);
provider.setReturnValues([
{ insertText: 'foobar1', range: new Range(1, 1, 1, 4) },
{ insertText: 'foobizz2', range: new Range(1, 1, 1, 4) },
{ insertText: 'foobuzz3', range: new Range(1, 1, 1, 4) }
]);
model.showNext();
await timeout(1000);
assert.deepStrictEqual(context.getAndClearViewStates(), ['foo[bizz2]']);
model.showNext();
await timeout(1000);
assert.deepStrictEqual(context.getAndClearViewStates(), ['foo[buzz3]']);
model.showNext();
await timeout(1000);
assert.deepStrictEqual(context.getAndClearViewStates(), ['foo[bar1]']);
model.showPrevious();
await timeout(1000);
assert.deepStrictEqual(context.getAndClearViewStates(), ['foo[buzz3]']);
model.showPrevious();
await timeout(1000);
assert.deepStrictEqual(context.getAndClearViewStates(), ['foo[bizz2]']);
model.showPrevious();
await timeout(1000);
assert.deepStrictEqual(context.getAndClearViewStates(), ['foo[bar1]']);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,4)', text: 'foo', triggerKind: 0, },
{ position: '(1,4)', text: 'foo', triggerKind: 1, },
]);
}
);
});
test('Calling the provider is debounced', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
model.trigger(InlineCompletionTriggerKind.Automatic);
context.keyboardType('f');
await timeout(40);
context.keyboardType('o');
await timeout(40);
context.keyboardType('o');
await timeout(40);
// The provider is not called
assert.deepStrictEqual(provider.getAndClearCallHistory(), []);
await timeout(400);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,4)', text: 'foo', triggerKind: 0, }
]);
provider.assertNotCalledTwiceWithin50ms();
}
);
});
test('Backspace is debounced', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider, inlineSuggest: { enabled: true } },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('foo');
provider.setReturnValue({ insertText: 'foobar', range: new Range(1, 1, 1, 4) });
await timeout(1000);
for (let j = 0; j < 2; j++) {
for (let i = 0; i < 3; i++) {
context.leftDelete();
await timeout(5);
}
context.keyboardType('bar');
}
await timeout(400);
provider.assertNotCalledTwiceWithin50ms();
}
);
});
test('Forward stability', async function () {
// The user types the text as suggested and the provider is forward-stable
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
provider.setReturnValue({ insertText: 'foobar', range: new Range(1, 1, 1, 4) });
context.keyboardType('foo');
model.trigger(InlineCompletionTriggerKind.Automatic);
await timeout(1000);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,4)', text: 'foo', triggerKind: 0, }
]);
assert.deepStrictEqual(context.getAndClearViewStates(), ['', 'foo[bar]']);
provider.setReturnValue({ insertText: 'foobar', range: new Range(1, 1, 1, 5) });
context.keyboardType('b');
assert.deepStrictEqual(context.currentPrettyViewState, 'foob[ar]');
await timeout(1000);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,5)', text: 'foob', triggerKind: 0, }
]);
assert.deepStrictEqual(context.getAndClearViewStates(), ['foob[ar]']);
provider.setReturnValue({ insertText: 'foobar', range: new Range(1, 1, 1, 6) });
context.keyboardType('a');
assert.deepStrictEqual(context.currentPrettyViewState, 'fooba[r]');
await timeout(1000);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,6)', text: 'fooba', triggerKind: 0, }
]);
assert.deepStrictEqual(context.getAndClearViewStates(), ['fooba[r]']);
}
);
});
test('Support forward instability', async function () {
// The user types the text as suggested and the provider reports a different suggestion.
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
provider.setReturnValue({ insertText: 'foobar', range: new Range(1, 1, 1, 4) });
context.keyboardType('foo');
model.trigger(InlineCompletionTriggerKind.Explicit);
await timeout(100);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,4)', text: 'foo', triggerKind: 1, }
]);
assert.deepStrictEqual(context.getAndClearViewStates(), ['', 'foo[bar]']);
provider.setReturnValue({ insertText: 'foobaz', range: new Range(1, 1, 1, 5) });
context.keyboardType('b');
assert.deepStrictEqual(context.currentPrettyViewState, 'foob[ar]');
await timeout(100);
// This behavior might change!
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,5)', text: 'foob', triggerKind: 0, }
]);
assert.deepStrictEqual(context.getAndClearViewStates(), ['foob[ar]', 'foob[az]']);
}
);
});
test('Support backward instability', async function () {
// The user deletes text and the suggestion changes
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('fooba');
provider.setReturnValue({ insertText: 'foobar', range: new Range(1, 1, 1, 6) });
model.trigger(InlineCompletionTriggerKind.Explicit);
await timeout(1000);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,6)', text: 'fooba', triggerKind: 1, }
]);
assert.deepStrictEqual(context.getAndClearViewStates(), ['', 'fooba[r]']);
provider.setReturnValue({ insertText: 'foobaz', range: new Range(1, 1, 1, 5) });
context.leftDelete();
await timeout(1000);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{ position: '(1,5)', text: 'foob', triggerKind: 0, }
]);
assert.deepStrictEqual(context.getAndClearViewStates(), [
'foob[ar]',
'foob[az]'
]);
}
);
});
test('No race conditions', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider, },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('h');
provider.setReturnValue({ insertText: 'helloworld', range: new Range(1, 1, 1, 2) }, 1000);
model.trigger(InlineCompletionTriggerKind.Explicit);
await timeout(1030);
context.keyboardType('ello');
provider.setReturnValue({ insertText: 'helloworld', range: new Range(1, 1, 1, 6) }, 1000);
// after 20ms: Inline completion provider answers back
// after 50ms: Debounce is triggered
await timeout(2000);
assert.deepStrictEqual(context.getAndClearViewStates(), [
'',
'hello[world]',
]);
});
});
test('Do not reuse cache from previous session (#132516)', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider, inlineSuggest: { enabled: true } },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('hello\n');
context.cursorLeft();
provider.setReturnValue({ insertText: 'helloworld', range: new Range(1, 1, 1, 6) }, 1000);
await timeout(2000);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{
position: '(1,6)',
text: 'hello\n',
triggerKind: 0,
}
]);
provider.setReturnValue({ insertText: 'helloworld', range: new Range(2, 1, 2, 6) }, 1000);
context.cursorDown();
context.keyboardType('hello');
await timeout(100);
context.cursorLeft(); // Cause the ghost text to update
context.cursorRight();
await timeout(2000);
assert.deepStrictEqual(provider.getAndClearCallHistory(), [
{
position: '(2,6)',
text: 'hello\nhello',
triggerKind: 0,
}
]);
assert.deepStrictEqual(context.getAndClearViewStates(), [
'',
'hello[world]\n',
'hello\n',
'hello\nhello[world]',
]);
});
});
test('Additional Text Edits', async function () {
const provider = new MockInlineCompletionsProvider();
await withAsyncTestCodeEditorAndInlineCompletionsModel('',
{ fakeClock: true, provider },
async ({ editor, editorViewModel, model, context }) => {
model.setActive(true);
context.keyboardType('buzz\nbaz');
provider.setReturnValue({
insertText: 'bazz',
range: new Range(2, 1, 2, 4),
additionalTextEdits: [{
range: new Range(1, 1, 1, 5),
text: 'bla'
}],
});
model.trigger(InlineCompletionTriggerKind.Explicit);
await timeout(1000);
model.commitCurrentSuggestion();
assert.deepStrictEqual(provider.getAndClearCallHistory(), ([{ position: "(2,4)", triggerKind: 1, text: "buzz\nbaz" }]));
assert.deepStrictEqual(context.getAndClearViewStates(), [
'',
'buzz\nbaz[z]',
'bla\nbazz',
]);
}
);
});
});
async function withAsyncTestCodeEditorAndInlineCompletionsModel<T>(
text: string,
options: TestCodeEditorInstantiationOptions & { provider?: InlineCompletionsProvider; fakeClock?: boolean },
callback: (args: { editor: ITestCodeEditor; editorViewModel: ViewModel; model: InlineCompletionsModel; context: GhostTextContext }) => Promise<T>
): Promise<T> {
return await runWithFakedTimers({
useFakeTimers: options.fakeClock,
}, async () => {
const disposableStore = new DisposableStore();
try {
if (options.provider) {
const languageFeaturesService = new LanguageFeaturesService();
if (!options.serviceCollection) {
options.serviceCollection = new ServiceCollection();
}
options.serviceCollection.set(ILanguageFeaturesService, languageFeaturesService);
const d = languageFeaturesService.inlineCompletionsProvider.register({ pattern: '**' }, options.provider);
disposableStore.add(d);
}
let result: T;
await withAsyncTestCodeEditor(text, options, async (editor, editorViewModel, instantiationService) => {
const cache = disposableStore.add(new SharedInlineCompletionCache());
const model = instantiationService.createInstance(InlineCompletionsModel, editor, cache);
const context = new GhostTextContext(model, editor);
try {
result = await callback({ editor, editorViewModel, model, context });
} finally {
context.dispose();
model.dispose();
}
});
if (options.provider instanceof MockInlineCompletionsProvider) {
options.provider.assertNotCalledTwiceWithin50ms();
}
return result!;
} finally {
disposableStore.dispose();
}
});
}
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