Forbid running tests with .only in CI (#802)

Forbid running tests with `.only` in CI

Author: plemarquand

test/suite/index.ts

@@ -22,6 +22,7 @@ export function run(): Promise<void> {
         ui: "tdd",
         color: true,
         timeout: 3000,
+        forbidOnly: process.env["CI"] === "1",
     });
 
     const testsRoot = path.resolve(__dirname, "..");

test/suite/testexplorer/XCTestOutputParser.test.ts

@@ -20,7 +20,7 @@ import {
 } from "../../../src/TestExplorer/TestParsers/XCTestOutputParser";
 import { TestRunState, TestStatus } from "./MockTestRunState";
 
-suite.only("XCTestOutputParser Suite", () => {
+suite("XCTestOutputParser Suite", () => {
     suite("Darwin", () => {
         const outputParser = new XCTestOutputParser(darwinTestRegex);