chore: update telemetry test not to fail without key VSCODE-517 (#1169)

Author: tculig

scripts/generate-constants.ts

@@ -13,10 +13,12 @@ const ui = ora('Generate constants file').start();
 
 config({ path: resolve(__dirname, '../.env') });
 
+const segmentKey = process.env.SEGMENT_KEY || 'test-segment-key';
+
 (async () => {
   await writeFile(
     `${ROOT_DIR}/constants.json`,
-    JSON.stringify({ segmentKey: process.env.SEGMENT_KEY }, null, 2),
+    JSON.stringify({ segmentKey }, null, 2),
   );
   ui.succeed('The constants file has been generated');
 })().catch((error) => {

src/test/suite/index.ts

@@ -7,6 +7,10 @@ import MDBExtensionController from '../../mdbExtensionController';
 import { ExtensionContextStub } from './stubs';
 import { mdbTestExtension } from './stubbableMdbExtension';
 
+if (!process.env.SEGMENT_KEY) {
+  process.env.SEGMENT_KEY = 'test-segment-key';
+}
+
 export async function run(): Promise<void> {
   const reporterOptions = {
     spec: '-',