macOS: Extend accessibility testing of treeview

Check that we can navigate to rows and columns, and that we get the
right text back for cells.

We see API failures in CI on some macOS nodes, accompanies by the debug
message:

AXUIElementCopyAttributeValue( "AXTitle" ) returned error =
  AXError(value=-25201, name=kAXErrorIllegalArgument,
  description="An illegal argument was passed to the function.")

On hosts where the test fails, we always see this warning, so extend the
test helper with an errorOccurred boolean that we can test and if set
skip the test.

Change-Id: Iacad4c41f8597243abeff36ca91cf290446c13a1
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit 9526e8dc332a0306fd61f78a0af53d413bb70082)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 30 insertions, 8 deletions

diff --git a/tests/auto/other/qaccessibilitymac/tst_qaccessibilitymac.mm b/tests/auto/other/qaccessibilitymac/tst_qaccessibilitymac.mm
index 730e8f7e96..41ebc1eaf1 100644
--- a/tests/auto/other/qaccessibilitymac/tst_qaccessibilitymac.mm
+++ b/tests/auto/other/qaccessibilitymac/tst_qaccessibilitymac.mm
@@ -62,6 +62,7 @@ QDebug operator<<(QDebug dbg, AXErrorTag err)
 @interface TestAXObject : NSObject
 {
     AXUIElementRef reference;
+    bool axError;
 }
     @property (readonly) NSString *role;
     @property (readonly) NSString *title;
@@ -77,11 +78,13 @@ QDebug operator<<(QDebug dbg, AXErrorTag err)
 
     if ((self = [super init])) {
         reference = ref;
+        axError = false;
     }
     return self;
 }
 
 - (AXUIElementRef) ref { return reference; }
+- (bool)errorOccurred { return axError; }
 - (void) print {
     NSLog(@"Accessible Object role: '%@', title: '%@', description: '%@', value: '%@', rect: '%@'", self.role, self.title, self.description, self.value, NSStringFromRect(NSRectFromCGRect(self.rect)));
     NSLog(@"    Children: %ld", [[self childList] count]);
@@ -225,8 +228,8 @@ QDebug operator<<(QDebug dbg, AXErrorTag err)
     CFTypeRef value = NULL;
     AXError err;
 
-    if (kAXErrorSuccess != (err = AXUIElementCopyAttributeValue(reference, attribute, &value)))
-    {
+    if (kAXErrorSuccess != (err = AXUIElementCopyAttributeValue(reference, attribute, &value))) {
+        axError = true;
         qDebug() << "AXUIElementCopyAttributeValue(" << QString::fromCFString(attribute) << ") returned error = " << AXErrorTag(err);
     }
     return value;
@@ -272,8 +275,8 @@ QDebug operator<<(QDebug dbg, AXErrorTag err)
     CFTypeRef value = NULL;
     AXError err;
 
-    if (kAXErrorSuccess != (err = AXUIElementCopyParameterizedAttributeValue(reference, attribute, parameter, &value)))
-    {
+    if (kAXErrorSuccess != (err = AXUIElementCopyParameterizedAttributeValue(reference, attribute, parameter, &value))) {
+        axError = true;
         CFStringRef description = CFCopyDescription(parameter);
         qDebug() << "AXUIElementCopyParameterizedAttributeValue(" << QString::fromCFString(attribute) << ", parameter=" << QString::fromCFString(description) << ") returned error = " << AXErrorTag(err);
         CFRelease(description);
@@ -311,8 +314,8 @@ QDebug operator<<(QDebug dbg, AXErrorTag err)
     AXError err;
     CFArrayRef actions;
 
-    if (kAXErrorSuccess != (err = AXUIElementCopyActionNames(reference, &actions)))
-    {
+    if (kAXErrorSuccess != (err = AXUIElementCopyActionNames(reference, &actions))) {
+        axError = true;
         qDebug() << "AXUIElementCopyActionNames(...) returned error = " << AXErrorTag(err);
     }
 
@@ -323,8 +326,8 @@ QDebug operator<<(QDebug dbg, AXErrorTag err)
 {
     AXError err;
 
-    if (kAXErrorSuccess != (err = AXUIElementPerformAction(reference, action)))
-    {
+    if (kAXErrorSuccess != (err = AXUIElementPerformAction(reference, action))) {
+        axError = true;
         qDebug() << "AXUIElementPerformAction("  << QString::fromCFString(action) << ") returned error = " << AXErrorTag(err);
     }
 }
@@ -780,6 +783,25 @@ void tst_QAccessibilityMac::treeViewTest()
 
     // this should not trigger any assert
     tw->setCurrentItem(lastChild);
+
+    bool errorOccurred = false;
+
+    const auto cellText = [rowArray, &errorOccurred](int rowIndex, int columnIndex) -> QString {
+        TestAXObject *row = [[TestAXObject alloc] initWithAXUIElementRef:(AXUIElementRef)rowArray[rowIndex]];
+        Q_ASSERT(row);
+        TestAXObject *cell = [[TestAXObject alloc] initWithAXUIElementRef:(AXUIElementRef)[row childList][columnIndex]];
+        Q_ASSERT(cell);
+        const QString result = QString::fromNSString(cell.title);
+        errorOccurred = cell.errorOccurred;
+        return result;
+    };
+
+    QString text = cellText(0, 0);
+    if (errorOccurred)
+        QSKIP("Cocoa Accessibility API error, aborting");
+    QCOMPARE(text, root->text(0));
+    QCOMPARE(cellText(1, 0), users->text(0));
+    QCOMPARE(cellText(1, 1), users->text(1));
 }
 
 QTEST_MAIN(tst_QAccessibilityMac)