Add misc tests

Author: mmdanggg2

tests/qlayout.py

@@ -1,5 +1,19 @@
-from PySide6.QtWidgets import QGridLayout, QHBoxLayout, QVBoxLayout, QLayout
+from typing_extensions import override
+from PySide6.QtWidgets import QGridLayout, QHBoxLayout, QVBoxLayout, QLayout, QLayoutItem
 
 a = QGridLayout(parent=None)
 b = QHBoxLayout(parent=None)
 c = QVBoxLayout(parent=None)
+
+class TestLayout(QLayout):
+    # These can return None
+    @override
+    def itemAt(self, index: int) -> 'QLayoutItem | None':
+        return super().itemAt(index)
+    
+    @override
+    def takeAt(self, index: int) -> 'QLayoutItem | None':
+        return super().takeAt(index)
+
+assert a.itemAt(0) is None
+assert a.takeAt(0) is None

tests/qpixmap.py

@@ -1,7 +1,12 @@
-from PySide6.QtCore import Qt
+from PySide6.QtCore import QByteArray, Qt
 from PySide6.QtGui import QPixmap
 
 emptyPixmap = QPixmap(16, 16)
 emptyPixmap.fill(Qt.GlobalColor.transparent)
 emptyPixmap.fill('white')
 emptyPixmap.fill(0xFFFFFF)
+
+# Should accept str for format
+worlds_smallest_png = QByteArray.fromBase64(b"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQAAAAA3bvkkAAAACklEQVR4AWNgAAAAAgABc3UBGAAAAABJRU5ErkJggg==")
+load_pixmap = QPixmap()
+load_pixmap.loadFromData(worlds_smallest_png, "PNG")

tests/qregularexpressionvalidator.py

@@ -0,0 +1,10 @@
+from PySide6.QtGui import QRegularExpressionValidator, QValidator
+
+
+v = QRegularExpressionValidator()
+
+valid_info: tuple[QValidator.State, str, int] = v.validate("", 0)
+assert isinstance(valid_info, tuple)
+assert isinstance(valid_info[0], QValidator.State)
+assert isinstance(valid_info[1], str)
+assert isinstance(valid_info[2], int)

tests/qtreewidget.py

@@ -13,3 +13,6 @@
 # default type returned by topLevelItem() should allow None value
 topItem = None
 
+t.setCurrentItem(None)
+current_item = t.currentItem()
+current_item = None