Temporary fix for jaws double escape (#89)

* double parse speech strings on JAWS

* add comment to issue

Author: gnarf

src/runner/driver-test-runner.js

@@ -347,8 +347,15 @@ export class DriverTestRunner {
    */
   async _collectSpeech(debounceDelay, asyncOperation) {
     let spoken = [];
+    const isJAWS = (await this.collectedCapabilities).atName == 'JAWS';
+
     const speechJob = startJob(async signal => {
-      for await (const speech of signal.cancelable(this.atDriver.speeches())) {
+      for await (let speech of signal.cancelable(this.atDriver.speeches())) {
+        if (isJAWS) {
+          // temporary workaround to double-escaped string literals.
+          // see https://github.com/w3c/aria-at-automation-harness/issues/90
+          speech = JSON.parse(`"${speech}"`);
+        }
         spoken.push(speech);
         this.log(RunnerMessage.SPEECH_EVENT, { spokenText: speech });
       }