tests: Avoid accessing Qt statics at import time

With a Qt 6.7 developer build, the tests fail with:

    ASSERT failure in QtGlobalStatic::ApplicationHolder<QAS>::PlainType*
    QtGlobalStatic::ApplicationHolder<QAS>::pointer() [with QAS =
    {anonymous}::Q_QAS_qtlsbLoader; PlainType = QFactoryLoader]: "The
    application static was used without a QCoreApplication instance", file
    .../qtbase/src/corelib/kernel/qapplicationstatic.h, line 54

    Fatal Python error: Aborted

    [...]

    Current thread 0x00007c18bb3f3740 (most recent call first):
    File ".../tests/unit/browser/webkit/test_certificateerror.py", line 23 in <module>

See https://codereview.qt-project.org/c/qt/qtbase/+/495239

1 files changed, 9 insertions, 8 deletions

diff --git a/tests/unit/browser/webkit/test_certificateerror.py b/tests/unit/browser/webkit/test_certificateerror.py
index 2feb7dcf1..7f5cce9c6 100644
--- a/tests/unit/browser/webkit/test_certificateerror.py
+++ b/tests/unit/browser/webkit/test_certificateerror.py
@@ -18,15 +18,15 @@ class FakeError:
         return self.msg
 
 
-@pytest.mark.parametrize('errors, expected', [
+@pytest.mark.parametrize('error_factories, expected', [
     (
-        [QSslError(QSslError.SslError.UnableToGetIssuerCertificate)],
+        [lambda: QSslError(QSslError.SslError.UnableToGetIssuerCertificate)],
         ['<p>The issuer certificate could not be found</p>'],
     ),
     (
         [
-            QSslError(QSslError.SslError.UnableToGetIssuerCertificate),
-            QSslError(QSslError.SslError.UnableToDecryptCertificateSignature),
+            lambda: QSslError(QSslError.SslError.UnableToGetIssuerCertificate),
+            lambda: QSslError(QSslError.SslError.UnableToDecryptCertificateSignature),
         ],
         [
             '<ul>',
@@ -37,13 +37,13 @@ class FakeError:
     ),
 
     (
-        [FakeError('Escaping test: <>')],
+        [lambda: FakeError('Escaping test: <>')],
         ['<p>Escaping test: &lt;&gt;</p>'],
     ),
     (
         [
-            FakeError('Escaping test 1: <>'),
-            FakeError('Escaping test 2: <>'),
+            lambda: FakeError('Escaping test 1: <>'),
+            lambda: FakeError('Escaping test 2: <>'),
         ],
         [
             '<ul>',
@@ -53,8 +53,9 @@ class FakeError:
         ],
     ),
 ])
-def test_html(stubs, errors, expected):
+def test_html(stubs, error_factories, expected):
     reply = stubs.FakeNetworkReply(url=QUrl("https://example.com"))
+    errors = [factory() for factory in error_factories]
     wrapper = certificateerror.CertificateErrorWrapper(reply=reply, errors=errors)
     lines = [line.strip() for line in wrapper.html().splitlines() if line.strip()]
     assert lines == expected