Adapt to dialog changes in matrix-auth 3.2.3 (#1804)

Co-authored-by: Daniel Beck <daniel-beck@users.noreply.github.com>

src/main/java/org/jenkinsci/test/acceptance/plugins/matrix_auth/MatrixAuthorizationStrategy.java

@@ -20,17 +20,15 @@ public MatrixAuthorizationStrategy(GlobalSecurityConfig context, String path) {
      * Adds a new user to this matrix.
      */
     public MatrixRow addUser(String name) {
-        runThenHandleAlert(
+        runThenHandleInputDialog(
                 () -> this.table
                         .resolve()
                         .findElement(
                                 by.xpath(
                                         "../div/span/span/button[text()='Add user\u2026'] | ../div/button[text()='Add user\u2026']"))
                         .click(),
-                a -> {
-                    a.sendKeys(name);
-                    a.accept();
-                });
+                name,
+                "OK");
         return getUser(name);
     }
 

src/main/java/org/jenkinsci/test/acceptance/plugins/matrix_auth/ProjectMatrixProperty.java

@@ -21,17 +21,15 @@ public ProjectMatrixProperty(Job job) {
      * Adds a new user/group to this matrix.
      */
     public MatrixRow addUser(String name) {
-        runThenHandleAlert(
+        runThenHandleInputDialog(
                 () -> this.table
                         .resolve()
                         .findElement(
                                 by.xpath(
                                         "../div/span/span/button[text()='Add user\u2026'] | ../div/button[text()='Add user\u2026']"))
                         .click(),
-                a -> {
-                    a.sendKeys(name);
-                    a.accept();
-                });
+                name,
+                "OK");
         return getUser(name);
     }
 

src/main/java/org/jenkinsci/test/acceptance/po/CapybaraPortingLayerImpl.java

@@ -424,6 +424,31 @@ public void runThenHandleDialog(Runnable runnable) {
         }
     }
 
+    /**
+     * Executes the runnable, then attempts to write {@code input} in a dialog's input field and click the button with the specified label {@code buttonLabel}.
+     * If an alert appears, instead the runnable is re-run, the input written to the alert, then the alert is submitted.
+     *
+     * @param runnable the runnable to run that causes a dialog to appear
+     * @param input the text to input into the dialog or alert
+     * @param buttonLabel the button of the dialog to click
+     */
+    public void runThenHandleInputDialog(Runnable runnable, String input, String buttonLabel) {
+        try {
+            runnable.run();
+            waitFor(by.button(buttonLabel));
+            find(by.css("dialog input")).sendKeys(input);
+            clickButton(buttonLabel);
+        } catch (UnhandledAlertException uae) {
+            runThenHandleAlert(
+                    runnable,
+                    a -> {
+                        a.sendKeys(input);
+                        a.accept();
+                    },
+                    2);
+        }
+    }
+
     public void handleAlert(Consumer<Alert> action) {
         runThenHandleAlert(null, action);
     }