Convert the Driver class to ES6 syntax in test/driver.js

test/driver.js

@@ -393,17 +393,12 @@ var rasterizeXfaLayer = (function rasterizeXfaLayerClosure() {
  * @property {HTMLDivElement} end - Container for a completion message.
  */
 
-/**
- * @class
- */
 // eslint-disable-next-line no-unused-vars
-var Driver = (function DriverClosure() {
+class Driver {
   /**
-   * @constructs Driver
    * @param {DriverOptions} options
    */
-  // eslint-disable-next-line no-shadow
-  function Driver(options) {
+  constructor(options) {
     // Configure the global worker options.
     GlobalWorkerOptions.workerSrc = WORKER_SRC;
 
@@ -428,13 +423,12 @@ var Driver = (function DriverClosure() {
     this.canvas = document.createElement("canvas");
   }
 
-  Driver.prototype = {
-    _getQueryStringParameters: function Driver_getQueryStringParameters() {
+  _getQueryStringParameters() {
     const queryString = window.location.search.substring(1);
     return Object.fromEntries(new URLSearchParams(queryString).entries());
-    },
+  }
 
-    run: function Driver_run() {
+  run() {
     var self = this;
     window.onerror = function (message, source, line, column, error) {
       self._info(
@@ -483,7 +477,7 @@ var Driver = (function DriverClosure() {
     setTimeout(function () {
       r.send(null);
     }, this.delay);
-    },
+  }
 
   /**
    * A debugging tool to log to the terminal while tests are running.
@@ -501,7 +495,7 @@ var Driver = (function DriverClosure() {
     }
 
     this._info(`${id}: ${msg}`);
-    },
+  }
 
   _nextTask() {
     let failure = "";
@@ -570,13 +564,11 @@ var Driver = (function DriverClosure() {
             }
 
             task.pdfDoc = doc;
-              task.optionalContentConfigPromise =
-                doc.getOptionalContentConfig();
+            task.optionalContentConfigPromise = doc.getOptionalContentConfig();
 
             if (task.optionalContent) {
               const entries = Object.entries(task.optionalContent),
-                  optionalContentConfig =
-                    await task.optionalContentConfigPromise;
+                optionalContentConfig = await task.optionalContentConfigPromise;
               for (const [id, visible] of entries) {
                 optionalContentConfig.setVisibility(id, visible);
               }
@@ -595,7 +587,7 @@ var Driver = (function DriverClosure() {
       }
       this._nextPage(task, failure);
     });
-    },
+  }
 
   _cleanup() {
     // Clear out all the stylesheets since a new one is created for each font.
@@ -620,9 +612,9 @@ var Driver = (function DriverClosure() {
       }
     }
     return Promise.all(destroyedPromises);
-    },
+  }
 
-    _exceptionToString: function Driver_exceptionToString(e) {
+  _exceptionToString(e) {
     if (typeof e !== "object") {
       return String(e);
     }
@@ -630,9 +622,9 @@ var Driver = (function DriverClosure() {
       return JSON.stringify(e);
     }
     return e.message + ("stack" in e ? " at " + e.stack.split("\n")[0] : "");
-    },
+  }
 
-    _getLastPageNumber: function Driver_getLastPageNumber(task) {
+  _getLastPageNumber(task) {
     if (!task.pdfDoc) {
       return task.firstPage || 1;
     }
@@ -641,9 +633,9 @@ var Driver = (function DriverClosure() {
       lastPageNumber = task.pdfDoc.numPages;
     }
     return lastPageNumber;
-    },
+  }
 
-    _nextPage: function Driver_nextPage(task, loadError) {
+  _nextPage(task, loadError) {
     var self = this;
     var failure = loadError || "";
     var ctx;
@@ -673,11 +665,7 @@ var Driver = (function DriverClosure() {
 
     if (task.skipPages && task.skipPages.includes(task.pageNum)) {
       this._log(
-          " Skipping page " +
-            task.pageNum +
-            "/" +
-            task.pdfDoc.numPages +
-            "...\n"
+        " Skipping page " + task.pageNum + "/" + task.pdfDoc.numPages + "...\n"
       );
       task.pageNum++;
       this._nextPage(task);
@@ -687,11 +675,7 @@ var Driver = (function DriverClosure() {
     if (!failure) {
       try {
         this._log(
-            " Loading page " +
-              task.pageNum +
-              "/" +
-              task.pdfDoc.numPages +
-              "... "
+          " Loading page " + task.pageNum + "/" + task.pdfDoc.numPages + "... "
         );
         this.canvas.mozOpaque = true;
         ctx = this.canvas.getContext("2d", { alpha: false });
@@ -879,15 +863,15 @@ var Driver = (function DriverClosure() {
         this._snapshot(task, failure);
       }
     }
-    },
+  }
 
-    _clearCanvas: function Driver_clearCanvas() {
+  _clearCanvas() {
     var ctx = this.canvas.getContext("2d", { alpha: false });
     ctx.beginPath();
     ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
-    },
+  }
 
-    _snapshot: function Driver_snapshot(task, failure) {
+  _snapshot(task, failure) {
     var self = this;
     this._log("Snapshotting... ");
 
@@ -899,9 +883,9 @@ var Driver = (function DriverClosure() {
       task.pageNum++;
       self._nextPage(task);
     });
-    },
+  }
 
-    _quit: function Driver_quit() {
+  _quit() {
     this._log("Done !");
     this.end.textContent = "Tests finished. Close this window!";
 
@@ -914,9 +898,9 @@ var Driver = (function DriverClosure() {
       }
     };
     r.send(null);
-    },
+  }
 
-    _info: function Driver_info(message) {
+  _info(message) {
     this._send(
       "/info",
       JSON.stringify({
@@ -924,9 +908,9 @@ var Driver = (function DriverClosure() {
         message,
       })
     );
-    },
+  }
 
-    _log: function Driver_log(message) {
+  _log(message) {
     // Using insertAdjacentHTML yields a large performance gain and
     // reduces runtime significantly.
     if (this.output.insertAdjacentHTML) {
@@ -940,18 +924,18 @@ var Driver = (function DriverClosure() {
       // Scroll to the bottom of the page
       this.output.scrollTop = this.output.scrollHeight;
     }
-    },
+  }
 
-    _done: function Driver_done() {
+  _done() {
     if (this.inFlightRequests > 0) {
       this.inflight.textContent = this.inFlightRequests;
       setTimeout(this._done.bind(this), WAITING_TIME);
     } else {
       setTimeout(this._quit.bind(this), WAITING_TIME);
     }
-    },
+  }
 
-    _sendResult: function Driver_sendResult(snapshot, task, failure, callback) {
+  _sendResult(snapshot, task, failure, callback) {
     var result = JSON.stringify({
       browser: this.browser,
       id: task.id,
@@ -965,9 +949,9 @@ var Driver = (function DriverClosure() {
       stats: task.stats.times,
     });
     this._send("/submit_task_results", result, callback);
-    },
+  }
 
-    _send: function Driver_send(url, message, callback) {
+  _send(url, message, callback) {
     var self = this;
     var r = new XMLHttpRequest();
     r.open("POST", url, true);
@@ -989,8 +973,5 @@ var Driver = (function DriverClosure() {
     };
     this.inflight.textContent = this.inFlightRequests++;
     r.send(message);
-    },
-  };
-
-  return Driver;
-})();
+  }
+}