Add tests for reply regex

package.json

@@ -199,7 +199,7 @@
       "decoderWorker\\.min\\.wasm": "<rootDir>/__mocks__/empty.js",
       "waveWorker\\.min\\.js": "<rootDir>/__mocks__/empty.js",
       "workers/(.+)\\.worker\\.ts": "<rootDir>/__mocks__/workerMock.js",
-      "^!!raw-loader!.*": "jest-raw-loader"
+      "^!!raw-loader!.*": "jest-raw-loader",
       "RecorderWorklet": "<rootDir>/__mocks__/empty.js"
     },
     "transformIgnorePatterns": [

src/utils/exportUtils/Exporter.ts

@@ -98,7 +98,8 @@ export default abstract class Exporter {
     }
 
     protected downloadPlainText(fileName: string, text: string) {
-        saveAs(new Blob[text], fileName);
+        const content = new Blob([text], { type: "text" });
+        saveAs(content, fileName);
     }
 
     protected setEventMetadata(event: MatrixEvent): MatrixEvent {

src/utils/exportUtils/PlainTextExport.ts

@@ -16,7 +16,7 @@ limitations under the License.
 
 import Exporter from "./Exporter";
 import { Room } from "matrix-js-sdk/src/models/room";
-import { MatrixEvent } from "matrix-js-sdk/src/models/event";
+import { IContent, MatrixEvent } from "matrix-js-sdk/src/models/event";
 import { formatFullDateNoDay } from "../../DateUtils";
 import { _t } from "../../languageHandler";
 import { haveTileForEvent } from "../../components/views/rooms/EventTile";
@@ -42,10 +42,9 @@ export default class PlainTextExporter extends Exporter {
             : _t("Media omitted - file size limit exceeded");
     }
 
-    public textForReplyEvent = (ev: MatrixEvent) => {
-        const REPLY_REGEX = /> <(.*?)>(.*?)\n\n(.*)/;
+    public textForReplyEvent = (content: IContent) => {
+        const REPLY_REGEX = /> <(.*?)>(.*?)\n\n(.*)/s;
         const REPLY_SOURCE_MAX_LENGTH = 32;
-        const content = ev.getContent();
 
         const match = REPLY_REGEX.exec(content.body);
 
@@ -55,7 +54,7 @@ export default class PlainTextExporter extends Exporter {
         const rplName = match[1];
         const rplText = match[3];
 
-        rplSource = match[2].substring(1, REPLY_SOURCE_MAX_LENGTH);
+        rplSource = match[2].substring(1);
         // Get the first non-blank line from the source.
         const lines = rplSource.split('\n').filter((line) => !/^\s*$/.test(line));
         if (lines.length > 0) {
@@ -99,7 +98,7 @@ export default class PlainTextExporter extends Exporter {
                 }
             } else mediaText = ` (${this.mediaOmitText})`;
         }
-        if (this.isReply(mxEv)) return senderDisplayName + ": " + this.textForReplyEvent(mxEv) + mediaText;
+        if (this.isReply(mxEv)) return senderDisplayName + ": " + this.textForReplyEvent(mxEv.getContent()) + mediaText;
         else return textForEvent(mxEv) + mediaText;
     };
 

test/utils/export-test.tsx

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import { MatrixClient, Room } from "matrix-js-sdk";
+import { IContent, MatrixClient, Room } from "matrix-js-sdk";
 import { MatrixClientPeg } from "../../src/MatrixClientPeg";
 import { textForFormat, IExportOptions, ExportTypes } from "../../src/utils/exportUtils/exportUtils";
 import '../skinned-sdk';
@@ -30,6 +30,10 @@ function generateRoomId() {
     return '!' + Math.random().toString().slice(2, 10) + ':domain';
 }
 
+interface ITestContent extends IContent {
+    expectedText: string;
+}
+
 describe('export', function() {
     stubClient();
     client = MatrixClientPeg.get();
@@ -63,7 +67,7 @@ describe('export', function() {
 
     const events = mkEvents();
     const room = createRoom();
-    console.log(events, room);
+    console.log(events);
     function createRoom() {
         const room = new Room(generateRoomId(), null, client.getUserId());
         return room;
@@ -118,14 +122,34 @@ describe('export', function() {
         }
     });
 
-    // it('checks if the reply regex executes correctly', function() {
-    //     const eventContents = [
-    //         {
-    //             "msgtype": "m.text",
-    //             "body": "> <@me:here> Testing....\n\nTest",
-    //             "expectedText": "",
-    //         },
-    //     ];
-    // });
+    it('checks if the reply regex executes correctly', function() {
+        const eventContents: ITestContent[] = [
+            {
+                "msgtype": "m.text",
+                "body": "> <@me:here> Source\n\nReply",
+                "expectedText": "<@me:here \"Source\"> Reply",
+            },
+            {
+                "msgtype": "m.text",
+                // if the reply format is invalid, then return the original string as it is
+                "body": "Invalid reply format",
+                "expectedText": "Invalid reply format",
+            },
+            {
+                "msgtype": "m.text",
+                "body": "> <@me:here> The source is more than 32 characters\n\nReply",
+                "expectedText": "<@me:here \"The source is more than 32 chara...\"> Reply",
+            },
+            {
+                "msgtype": "m.text",
+                "body": "> <@me:here> This\nsource\nhas\nnew\nlines\n\nReply",
+                "expectedText": "<@me:here \"This\"> Reply",
+            },
+        ];
+        const exporter = new PlainTextExporter(room, ExportTypes.BEGINNING, mockExportOptions, null);
+        for (const content of eventContents) {
+            expect(exporter.textForReplyEvent(content)).toBe(content.expectedText);
+        }
+    });
 });