Replies now display mentions with @displayname (#1957)

* reply with mentions

* fixed a bug and wrote a test for it

* error message

UnitTests/Sources/AttributedStringBuilderTests.swift

@@ -555,6 +555,52 @@ class AttributedStringBuilderTests: XCTestCase {
         XCTAssertEqual(foundLink, url)
         XCTAssertEqual(foundAttachments, 2)
     }
+    
+    func testMultipleMentions2() {
+        guard let url = URL(string: "https://matrix.to/#/@test:matrix.org") else {
+            XCTFail("Invalid url")
+            return
+        }
+        
+        let string = "\(url) @room"
+        guard let attributedStringFromHTML = attributedStringBuilder.fromHTML(string) else {
+            XCTFail("Attributed string is nil")
+            return
+        }
+        
+        var foundAttachments = 0
+        var foundLink: URL?
+        for run in attributedStringFromHTML.runs {
+            if run.attachment != nil {
+                foundAttachments += 1
+            }
+            
+            if let link = run.link {
+                foundLink = link
+            }
+        }
+        XCTAssertEqual(foundLink, url)
+        XCTAssertEqual(foundAttachments, 2)
+        
+        guard let attributedStringFromPlain = attributedStringBuilder.fromPlain(string) else {
+            XCTFail("Attributed string is nil")
+            return
+        }
+        
+        foundAttachments = 0
+        foundLink = nil
+        for run in attributedStringFromPlain.runs {
+            if run.attachment != nil {
+                foundAttachments += 1
+            }
+            
+            if let link = run.link {
+                foundLink = link
+            }
+        }
+        XCTAssertEqual(foundLink, url)
+        XCTAssertEqual(foundAttachments, 2)
+    }
 
     // MARK: - Private
     

UnitTests/__Snapshots__/PreviewTests/test_timelineReplyView.1.png

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d20d3c8a4bcebf86630fb5173f1e19b80c25fa2aad136024cbc36c876cca47cb
-size 132631
+oid sha256:23ba537d93a78dd7c69dc1d9482ae972ba50f0eb05dadbcb0f0ecc2b9fea2695
+size 145983