LSP-client-example

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/* --------------------------------------------------------------------------------------------
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 * Copyright (c) Microsoft Corporation. All rights reserved.
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 * Licensed under the MIT License. See License.txt in the project root for license information.
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 * ------------------------------------------------------------------------------------------ */
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import * as vscode from 'vscode';
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import * as assert from 'assert';
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import { getDocUri, activate } from './helper';
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suite('Should get diagnostics', () => {
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	const docUri = getDocUri('diagnostics.txt');
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	test('Diagnoses uppercase texts', async () => {
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		await testDiagnostics(docUri, [
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			{ message: 'ANY is all uppercase.', range: toRange(0, 0, 0, 3), severity: vscode.DiagnosticSeverity.Warning, source: 'ex' },
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			{ message: 'ANY is all uppercase.', range: toRange(0, 14, 0, 17), severity: vscode.DiagnosticSeverity.Warning, source: 'ex' },
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			{ message: 'OS is all uppercase.', range: toRange(0, 18, 0, 20), severity: vscode.DiagnosticSeverity.Warning, source: 'ex' }
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		]);
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	});
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});
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function toRange(sLine: number, sChar: number, eLine: number, eChar: number) {
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	const start = new vscode.Position(sLine, sChar);
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	const end = new vscode.Position(eLine, eChar);
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	return new vscode.Range(start, end);
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}
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async function testDiagnostics(docUri: vscode.Uri, expectedDiagnostics: vscode.Diagnostic[]) {
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	await activate(docUri);
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	const actualDiagnostics = vscode.languages.getDiagnostics(docUri);
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	assert.equal(actualDiagnostics.length, expectedDiagnostics.length);
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	expectedDiagnostics.forEach((expectedDiagnostic, i) => {
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		const actualDiagnostic = actualDiagnostics[i];
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		assert.equal(actualDiagnostic.message, expectedDiagnostic.message);
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		assert.deepEqual(actualDiagnostic.range, expectedDiagnostic.range);
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		assert.equal(actualDiagnostic.severity, expectedDiagnostic.severity);
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	});
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}