tests: adjust for 'push button' -> 'button' role change

Thunderbird 128 on Fedora 41 has buttons as 'button' role, instead of
'push button' that was before. This means the button() function cannot
be used anymore (it looks for 'push button' role), use child(...,
roleName='button') instead.
It's unclear whether that's about Thunderbird version or some library
(GTK?) version.

tests/test_thunderbird.py

@@ -170,7 +170,8 @@ def enter_imap_passwd(tb):
                .doActionNamed('check')
     pass_prompt.findChild(orPredicate(
         GenericPredicate(name='OK', roleName='push button'),       # tb < 91
-        GenericPredicate(name='Sign in', roleName='push button'))  # tb >= 91
+        GenericPredicate(name='Sign in', roleName='push button'),  # tb >= 91, tb < 128
+        GenericPredicate(name='OK', roleName='button'))  # tb >= 128
     ).doActionNamed('press')
 
 def accept_qubes_attachments(tb):
@@ -269,23 +270,36 @@ def configure_openpgp_account(tb):
 
 def get_messages(tb):
     try:
+        # TB >= 115
+        try:
+            # TB >= 128
+            tb.app.child('Get Messages', roleName='button').doActionNamed('press')
+        except tree.SearchError:
+            # TB < 128
+            tb.app.button('Get Messages').doActionNamed('press')
+        tb.app.child(name='Inbox.*', roleName='tree item').doActionNamed(
+            'activate')
+    except tree.SearchError:
         # TB < 115
         tb.app.child(name='user@localhost',
                 roleName='table row').doActionNamed('activate')
         tb.app.button('Get Messages').doActionNamed('press')
         tb.app.menuItem('Get All New Messages').doActionNamed('click')
         tb.app.child(name='Inbox.*', roleName='table row').doActionNamed(
             'activate')
-    except tree.SearchError:
-        # TB >= 115
-        tb.app.button('Get Messages').doActionNamed('press')
-        tb.app.child(name='Inbox.*', roleName='tree item').doActionNamed(
-            'activate')
 
 
 def attach(tb, compose_window, path):
-    compose_window.button('Attach').button('Attach').doActionNamed('press')
-    compose_window.button('Attach').menuItem('File.*').doActionNamed('click')
+    try:
+        # TB >= 128
+        compose_window.child('Attach', roleName='button').\
+                       doActionNamed('press')
+        compose_window.child('Attach', roleName='button').\
+                       menuItem('File.*').doActionNamed('click')
+    except tree.SearchError:
+        # TB < 128
+        compose_window.button('Attach').button('Attach').doActionNamed('press')
+        compose_window.button('Attach').menuItem('File.*').doActionNamed('click')
     # for some reason on some thunderbird versions do not expose 'Attach File'
     # dialog through accessibility API, use xdotool instead
     subprocess.check_call(
@@ -314,9 +328,13 @@ def attach(tb, compose_window, path):
 def send_email(tb, sign=False, encrypt=False, inline=False, attachment=None):
     config.searchCutoffCount = 20
     try:
-        write = tb.app.button('New Message')
+        # TB >= 128
+        write = tb.app.child(name='New Message', roleName='button')
     except tree.SearchError:
-        write = tb.app.button('Write')
+        try:
+            write = tb.app.button('New Message')
+        except tree.SearchError:
+            write = tb.app.button('Write')
     config.searchCutoffCount = defaultCutoffCount
     write.doActionNamed('press')
     compose = tb.app.child(name='Write: .*', roleName='frame')
@@ -338,8 +356,14 @@ def send_email(tb, sign=False, encrypt=False, inline=False, attachment=None):
     except tree.SearchError:
         compose.child(
             roleName='document frame').text = 'This is test message'
-    security = compose.findChild(
-        GenericPredicate(name='Security|OpenPGP', roleName='push button'))
+    try:
+        # TB >= 128
+        security = compose.findChild(
+            GenericPredicate(name='Security|OpenPGP', roleName='button'))
+    except tree.SearchError:
+        # TB < 128
+        security = compose.findChild(
+            GenericPredicate(name='Security|OpenPGP', roleName='push button'))
     security.doActionNamed('press')
     sign_button = security.childNamed('Digitally Sign.*')
     encrypt_button = security.childNamed('Require Encryption|Encrypt')
@@ -349,7 +373,12 @@ def send_email(tb, sign=False, encrypt=False, inline=False, attachment=None):
         encrypt_button.doActionNamed('click')
     if attachment:
         attach(tb, compose, attachment)
-    compose.button('Send').doActionNamed('press')
+    try:
+        # TB >= 128
+        compose.child('Send', roleName='button').doActionNamed('press')
+    except tree.SearchError:
+        # TB < 128
+        compose.button('Send').doActionNamed('press')
     config.searchCutoffCount = 5
     try:
         if encrypt:
@@ -473,8 +502,14 @@ def receive_message(tb, signed=False, encrypted=False, attachment=None):
         attachment_size = attachment_label.parent.children[
             attachment_label.indexInParent + 1 + offset]
         assert attachment_size.text[0] != '0'
-        attachment_save = attachment_label.parent.children[
-            attachment_label.indexInParent + 2 + offset].button('Save.*')
+        attachment_save_parent = attachment_label.parent.children[
+            attachment_label.indexInParent + 2 + offset]
+        try:
+            # TB >= 128
+            attachment_save = attachment_save_parent.child('Save.*', roleName='button')
+        except tree.SearchError:
+            # TB < 128
+            attachment_save = attachment_save_parent.button('Save.*')
         try:
             # try child button first
             attachment_save.children[1].doActionNamed('press')