Avoid repeated calls to document.DrawPage.getByIndex(0)

I have seen various failures with (slow) ASan+UBSan builds where some other
than the first one of those self.assertEqual failed.  I would assume that they
rather either all succeed or all fail (in which case consistently the first one
in each of those self.assertEqual blocks should fail).  To rule out the
possibility that, for some timing/race reason, the identity of the element
provided by document.DrawPage.getByIndex(0) changes midway through those blocks,
only obtain that element once per block.

Examples of such failures during UITest_writer_tests3 are
<https://ci.libreoffice.org//job/lo_ubsan/1725/>

> FAIL: test_insert_signature_line (insertSignatureLine.insertSignatureLine)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/home/tdf/lode/jenkins/workspace/lo_ubsan/sw/qa/uitest/writer_tests3/insertSignatureLine.py", line 53, in test_insert_signature_line
>     self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSuggestedSignerEmail, "Email")
> AssertionError: None != 'Email'

and my local build

> FAIL: test_insert_signature_line2 (insertSignatureLine.insertSignatureLine)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/home/sbergman/lo/core/sw/qa/uitest/writer_tests3/insertSignatureLine.py", line 91, in test_insert_signature_line2
>     self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineShowSignDate, False)
> AssertionError: None != False

Change-Id: I2739edb12ed39892f5b29999b9e3d632e166c1c5
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/100572
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

1 files changed, 16 insertions, 14 deletions

diff --git a/sw/qa/uitest/writer_tests3/insertSignatureLine.py b/sw/qa/uitest/writer_tests3/insertSignatureLine.py
index 8bbbdd65b93d..eb75b6cc89b2 100644
--- a/sw/qa/uitest/writer_tests3/insertSignatureLine.py
+++ b/sw/qa/uitest/writer_tests3/insertSignatureLine.py
@@ -48,13 +48,14 @@ class insertSignatureLine(UITestCase):
         xOKBtn.executeAction("CLICK", tuple())
 
         #check the signature Line in the document
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSuggestedSignerName, "Name")
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSuggestedSignerTitle, "Title")
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSuggestedSignerEmail, "Email")
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSuggestedSignerTitle, "Title")
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineCanAddComment, False)
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineShowSignDate, True)
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSigningInstructions, "Instructions")
+        element = document.DrawPage.getByIndex(0)
+        self.assertEqual(element.SignatureLineSuggestedSignerName, "Name")
+        self.assertEqual(element.SignatureLineSuggestedSignerTitle, "Title")
+        self.assertEqual(element.SignatureLineSuggestedSignerEmail, "Email")
+        self.assertEqual(element.SignatureLineSuggestedSignerTitle, "Title")
+        self.assertEqual(element.SignatureLineCanAddComment, False)
+        self.assertEqual(element.SignatureLineShowSignDate, True)
+        self.assertEqual(element.SignatureLineSigningInstructions, "Instructions")
 
         self.ui_test.close_doc()
 
@@ -83,13 +84,14 @@ class insertSignatureLine(UITestCase):
         xOKBtn.executeAction("CLICK", tuple())
 
         #check the signature Line in the document
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSuggestedSignerName, "Name")
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSuggestedSignerTitle, "Title")
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSuggestedSignerEmail, "Email")
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSuggestedSignerTitle, "Title")
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineCanAddComment, False)
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineShowSignDate, False)
-        self.assertEqual(document.DrawPage.getByIndex(0).SignatureLineSigningInstructions, "Instructions")
+        element = document.DrawPage.getByIndex(0)
+        self.assertEqual(element.SignatureLineSuggestedSignerName, "Name")
+        self.assertEqual(element.SignatureLineSuggestedSignerTitle, "Title")
+        self.assertEqual(element.SignatureLineSuggestedSignerEmail, "Email")
+        self.assertEqual(element.SignatureLineSuggestedSignerTitle, "Title")
+        self.assertEqual(element.SignatureLineCanAddComment, False)
+        self.assertEqual(element.SignatureLineShowSignDate, False)
+        self.assertEqual(element.SignatureLineSigningInstructions, "Instructions")
 
         self.ui_test.close_doc()
 # vim: set shiftwidth=4 softtabstop=4 expandtab: