Added timeout to wait for emulators

Author: stevenkellner

test/waitForEmulator.ts

@@ -9,4 +9,13 @@ async function waitForEmulators(): Promise<void> {
     });
 }
 
-void waitForEmulators();
+async function waitForEmulatorsMaxTimeout(timeout: number): Promise<void> {
+    return new Promise((resolve, reject) => {
+        waitForEmulators()
+            .then(resolve)
+            .catch(reject);
+        setTimeout(reject, timeout);
+    });
+}
+
+void waitForEmulatorsMaxTimeout(30000);