def testBasic(self):
w = QgsScaleWidget()
spy = QSignalSpy(w.scaleChanged)
w.setScaleString('1:2345')
self.assertEqual(w.scaleString(), '1:2,345')
self.assertEqual(w.scale(), 2345)
self.assertEqual(len(spy), 1)
self.assertEqual(spy[-1][0], 2345)
w.setScaleString('0.02')
self.assertEqual(w.scaleString(), '1:50')
self.assertEqual(w.scale(), 50)
self.assertEqual(len(spy), 2)
self.assertEqual(spy[-1][0], 50)
w.setScaleString('1:4,000')
self.assertEqual(w.scaleString(), '1:4,000')
self.assertEqual(w.scale(), 4000)
self.assertEqual(len(spy), 3)
self.assertEqual(spy[-1][0], 4000)
def testBasic(self):
w = QgsScaleWidget()
spy = QSignalSpy(w.scaleChanged)
w.setScaleString('1:2345')
self.assertEqual(w.scaleString(), '1:2,345')
self.assertEqual(w.scale(), 2345)
self.assertEqual(len(spy), 1)
self.assertEqual(spy[-1][0], 2345)
w.setScaleString('0.02')
self.assertEqual(w.scaleString(), '1:50')
self.assertEqual(w.scale(), 50)
self.assertEqual(len(spy), 2)
self.assertEqual(spy[-1][0], 50)
w.setScaleString('1:4,000')
self.assertEqual(w.scaleString(), '1:4,000')
self.assertEqual(w.scale(), 4000)
self.assertEqual(len(spy), 3)
self.assertEqual(spy[-1][0], 4000)
def testNull(self):
w = QgsScaleWidget()
w.setScale(50)
self.assertFalse(w.allowNull())
w.setNull() # no effect
self.assertEqual(w.scale(), 50.0)
self.assertFalse(w.isNull())
spy = QSignalSpy(w.scaleChanged)
w.setAllowNull(True)
self.assertTrue(w.allowNull())
w.setScaleString('')
self.assertEqual(len(spy), 1)
self.assertTrue(math.isnan(w.scale()))
self.assertTrue(math.isnan(spy[-1][0]))
self.assertTrue(w.isNull())
w.setScaleString(" ")
self.assertTrue(math.isnan(w.scale()))
self.assertTrue(w.isNull())
w.setScaleString('0.02')
self.assertEqual(w.scale(), 50.0)
self.assertEqual(len(spy), 2)
self.assertEqual(spy[-1][0], 50.0)
self.assertFalse(w.isNull())
w.setScaleString('')
self.assertTrue(math.isnan(w.scale()))
self.assertEqual(len(spy), 3)
self.assertTrue(math.isnan(spy[-1][0]))
self.assertTrue(w.isNull())
w.setScaleString('0.02')
self.assertEqual(w.scale(), 50.0)
self.assertEqual(len(spy), 4)
self.assertEqual(spy[-1][0], 50.0)
self.assertFalse(w.isNull())
w.setNull()
self.assertTrue(math.isnan(w.scale()))
self.assertEqual(len(spy), 5)
self.assertTrue(math.isnan(spy[-1][0]))
self.assertTrue(w.isNull())
w.setAllowNull(False)
self.assertFalse(w.allowNull())
def testNull(self):
w = QgsScaleWidget()
w.setScale(50)
self.assertFalse(w.allowNull())
w.setNull() # no effect
self.assertEqual(w.scale(), 50.0)
self.assertFalse(w.isNull())
spy = QSignalSpy(w.scaleChanged)
w.setAllowNull(True)
self.assertTrue(w.allowNull())
w.setScaleString('')
self.assertEqual(len(spy), 1)
self.assertTrue(math.isnan(w.scale()))
self.assertTrue(math.isnan(spy[-1][0]))
self.assertTrue(w.isNull())
w.setScaleString(" ")
self.assertTrue(math.isnan(w.scale()))
self.assertTrue(w.isNull())
w.setScaleString('0.02')
self.assertEqual(w.scale(), 50.0)
self.assertEqual(len(spy), 2)
self.assertEqual(spy[-1][0], 50.0)
self.assertFalse(w.isNull())
w.setScaleString('')
self.assertTrue(math.isnan(w.scale()))
self.assertEqual(len(spy), 3)
self.assertTrue(math.isnan(spy[-1][0]))
self.assertTrue(w.isNull())
w.setScaleString('0.02')
self.assertEqual(w.scale(), 50.0)
self.assertEqual(len(spy), 4)
self.assertEqual(spy[-1][0], 50.0)
self.assertFalse(w.isNull())
w.setNull()
self.assertTrue(math.isnan(w.scale()))
self.assertEqual(len(spy), 5)
self.assertTrue(math.isnan(spy[-1][0]))
self.assertTrue(w.isNull())
w.setAllowNull(False)
self.assertFalse(w.allowNull())
