| from django.contrib.gis.gdal import Envelope, OGRException |
| from django.utils import unittest |
| |
| |
| class TestPoint(object): |
| def __init__(self, x, y): |
| self.x = x |
| self.y = y |
| |
| class EnvelopeTest(unittest.TestCase): |
| |
| def setUp(self): |
| self.e = Envelope(0, 0, 5, 5) |
| |
| def test01_init(self): |
| "Testing Envelope initilization." |
| e1 = Envelope((0, 0, 5, 5)) |
| e2 = Envelope(0, 0, 5, 5) |
| e3 = Envelope(0, '0', '5', 5) # Thanks to ww for this |
| e4 = Envelope(e1._envelope) |
| self.assertRaises(OGRException, Envelope, (5, 5, 0, 0)) |
| self.assertRaises(OGRException, Envelope, 5, 5, 0, 0) |
| self.assertRaises(OGRException, Envelope, (0, 0, 5, 5, 3)) |
| self.assertRaises(OGRException, Envelope, ()) |
| self.assertRaises(ValueError, Envelope, 0, 'a', 5, 5) |
| self.assertRaises(TypeError, Envelope, u'foo') |
| self.assertRaises(OGRException, Envelope, (1, 1, 0, 0)) |
| try: |
| Envelope(0, 0, 0, 0) |
| except OGRException: |
| self.fail("shouldn't raise an exception for min_x == max_x or min_y == max_y") |
| |
| def test02_properties(self): |
| "Testing Envelope properties." |
| e = Envelope(0, 0, 2, 3) |
| self.assertEqual(0, e.min_x) |
| self.assertEqual(0, e.min_y) |
| self.assertEqual(2, e.max_x) |
| self.assertEqual(3, e.max_y) |
| self.assertEqual((0, 0), e.ll) |
| self.assertEqual((2, 3), e.ur) |
| self.assertEqual((0, 0, 2, 3), e.tuple) |
| self.assertEqual('POLYGON((0.0 0.0,0.0 3.0,2.0 3.0,2.0 0.0,0.0 0.0))', e.wkt) |
| self.assertEqual('(0.0, 0.0, 2.0, 3.0)', str(e)) |
| |
| def test03_equivalence(self): |
| "Testing Envelope equivalence." |
| e1 = Envelope(0.523, 0.217, 253.23, 523.69) |
| e2 = Envelope((0.523, 0.217, 253.23, 523.69)) |
| self.assertEqual(e1, e2) |
| self.assertEqual((0.523, 0.217, 253.23, 523.69), e1) |
| |
| def test04_expand_to_include_pt_2_params(self): |
| "Testing Envelope expand_to_include -- point as two parameters." |
| self.e.expand_to_include(2, 6) |
| self.assertEqual((0, 0, 5, 6), self.e) |
| self.e.expand_to_include(-1, -1) |
| self.assertEqual((-1, -1, 5, 6), self.e) |
| |
| def test05_expand_to_include_pt_2_tuple(self): |
| "Testing Envelope expand_to_include -- point as a single 2-tuple parameter." |
| self.e.expand_to_include((10, 10)) |
| self.assertEqual((0, 0, 10, 10), self.e) |
| self.e.expand_to_include((-10, -10)) |
| self.assertEqual((-10, -10, 10, 10), self.e) |
| |
| def test06_expand_to_include_extent_4_params(self): |
| "Testing Envelope expand_to_include -- extent as 4 parameters." |
| self.e.expand_to_include(-1, 1, 3, 7) |
| self.assertEqual((-1, 0, 5, 7), self.e) |
| |
| def test06_expand_to_include_extent_4_tuple(self): |
| "Testing Envelope expand_to_include -- extent as a single 4-tuple parameter." |
| self.e.expand_to_include((-1, 1, 3, 7)) |
| self.assertEqual((-1, 0, 5, 7), self.e) |
| |
| def test07_expand_to_include_envelope(self): |
| "Testing Envelope expand_to_include with Envelope as parameter." |
| self.e.expand_to_include(Envelope(-1, 1, 3, 7)) |
| self.assertEqual((-1, 0, 5, 7), self.e) |
| |
| def test08_expand_to_include_point(self): |
| "Testing Envelope expand_to_include with Point as parameter." |
| self.e.expand_to_include(TestPoint(-1, 1)) |
| self.assertEqual((-1, 0, 5, 5), self.e) |
| self.e.expand_to_include(TestPoint(10, 10)) |
| self.assertEqual((-1, 0, 10, 10), self.e) |
| |
| def suite(): |
| s = unittest.TestSuite() |
| s.addTest(unittest.makeSuite(EnvelopeTest)) |
| return s |
| |
| def run(verbosity=2): |
| unittest.TextTestRunner(verbosity=verbosity).run(suite()) |
