Example #1
0
    def testDirtyBlocker(self):
        # first test manual QgsProjectDirtyBlocker construction
        p = QgsProject()

        dirty_spy = QSignalSpy(p.isDirtyChanged)
        # ^ will do *whatever* it takes to discover the enemy's secret plans!

        # simple checks
        p.setDirty(True)
        self.assertTrue(p.isDirty())
        self.assertEqual(len(dirty_spy), 1)
        self.assertEqual(dirty_spy[-1], [True])
        p.setDirty(True) # already dirty
        self.assertTrue(p.isDirty())
        self.assertEqual(len(dirty_spy), 1)
        p.setDirty(False)
        self.assertFalse(p.isDirty())
        self.assertEqual(len(dirty_spy), 2)
        self.assertEqual(dirty_spy[-1], [False])
        p.setDirty(True)
        self.assertTrue(p.isDirty())
        self.assertEqual(len(dirty_spy), 3)
        self.assertEqual(dirty_spy[-1], [True])

        # with a blocker
        blocker = QgsProjectDirtyBlocker(p)
        # blockers will allow cleaning projects
        p.setDirty(False)
        self.assertFalse(p.isDirty())
        self.assertEqual(len(dirty_spy), 4)
        self.assertEqual(dirty_spy[-1], [False])
        # but not dirtying!
        p.setDirty(True)
        self.assertFalse(p.isDirty())
        self.assertEqual(len(dirty_spy), 4)
        self.assertEqual(dirty_spy[-1], [False])
        # nested block
        blocker2 = QgsProjectDirtyBlocker(p)
        p.setDirty(True)
        self.assertFalse(p.isDirty())
        self.assertEqual(len(dirty_spy), 4)
        self.assertEqual(dirty_spy[-1], [False])
        del blocker2
        p.setDirty(True)
        self.assertFalse(p.isDirty())
        self.assertEqual(len(dirty_spy), 4)
        self.assertEqual(dirty_spy[-1], [False])
        del blocker
        p.setDirty(True)
        self.assertTrue(p.isDirty())
        self.assertEqual(len(dirty_spy), 5)
        self.assertEqual(dirty_spy[-1], [True])

        # using python context manager
        with QgsProject.blockDirtying(p):
            # cleaning allowed
            p.setDirty(False)
            self.assertFalse(p.isDirty())
            self.assertEqual(len(dirty_spy), 6)
            self.assertEqual(dirty_spy[-1], [False])
            # but not dirtying!
            p.setDirty(True)
            self.assertFalse(p.isDirty())
            self.assertEqual(len(dirty_spy), 6)
            self.assertEqual(dirty_spy[-1], [False])

        # unblocked
        p.setDirty(True)
        self.assertTrue(p.isDirty())
        self.assertEqual(len(dirty_spy), 7)
        self.assertEqual(dirty_spy[-1], [True])
Example #2
0
    def testDirtyBlocker(self):
        # first test manual QgsProjectDirtyBlocker construction
        p = QgsProject()

        dirty_spy = QSignalSpy(p.isDirtyChanged)
        # ^ will do *whatever* it takes to discover the enemy's secret plans!

        # simple checks
        p.setDirty(True)
        self.assertTrue(p.isDirty())
        self.assertEqual(len(dirty_spy), 1)
        self.assertEqual(dirty_spy[-1], [True])
        p.setDirty(True)  # already dirty
        self.assertTrue(p.isDirty())
        self.assertEqual(len(dirty_spy), 1)
        p.setDirty(False)
        self.assertFalse(p.isDirty())
        self.assertEqual(len(dirty_spy), 2)
        self.assertEqual(dirty_spy[-1], [False])
        p.setDirty(True)
        self.assertTrue(p.isDirty())
        self.assertEqual(len(dirty_spy), 3)
        self.assertEqual(dirty_spy[-1], [True])

        # with a blocker
        blocker = QgsProjectDirtyBlocker(p)
        # blockers will allow cleaning projects
        p.setDirty(False)
        self.assertFalse(p.isDirty())
        self.assertEqual(len(dirty_spy), 4)
        self.assertEqual(dirty_spy[-1], [False])
        # but not dirtying!
        p.setDirty(True)
        self.assertFalse(p.isDirty())
        self.assertEqual(len(dirty_spy), 4)
        self.assertEqual(dirty_spy[-1], [False])
        # nested block
        blocker2 = QgsProjectDirtyBlocker(p)
        p.setDirty(True)
        self.assertFalse(p.isDirty())
        self.assertEqual(len(dirty_spy), 4)
        self.assertEqual(dirty_spy[-1], [False])
        del blocker2
        p.setDirty(True)
        self.assertFalse(p.isDirty())
        self.assertEqual(len(dirty_spy), 4)
        self.assertEqual(dirty_spy[-1], [False])
        del blocker
        p.setDirty(True)
        self.assertTrue(p.isDirty())
        self.assertEqual(len(dirty_spy), 5)
        self.assertEqual(dirty_spy[-1], [True])

        # using python context manager
        with QgsProject.blockDirtying(p):
            # cleaning allowed
            p.setDirty(False)
            self.assertFalse(p.isDirty())
            self.assertEqual(len(dirty_spy), 6)
            self.assertEqual(dirty_spy[-1], [False])
            # but not dirtying!
            p.setDirty(True)
            self.assertFalse(p.isDirty())
            self.assertEqual(len(dirty_spy), 6)
            self.assertEqual(dirty_spy[-1], [False])

        # unblocked
        p.setDirty(True)
        self.assertTrue(p.isDirty())
        self.assertEqual(len(dirty_spy), 7)
        self.assertEqual(dirty_spy[-1], [True])