import unittest from unittest import skipUnless from django.contrib.gis.gdal import HAS_GDAL if HAS_GDAL: from django.contrib.gis.gdal import Envelope, GDALException class TestPoint(object): def __init__(self, x, y): self.x = x self.y = y @skipUnless(HAS_GDAL, "GDAL is required") class EnvelopeTest(unittest.TestCase): def setUp(self): self.e = Envelope(0, 0, 5, 5) def test01_init(self): "Testing Envelope initialization." e1 = Envelope((0, 0, 5, 5)) Envelope(0, 0, 5, 5) Envelope(0, '0', '5', 5) # Thanks to ww for this Envelope(e1._envelope) self.assertRaises(GDALException, Envelope, (5, 5, 0, 0)) self.assertRaises(GDALException, Envelope, 5, 5, 0, 0) self.assertRaises(GDALException, Envelope, (0, 0, 5, 5, 3)) self.assertRaises(GDALException, Envelope, ()) self.assertRaises(ValueError, Envelope, 0, 'a', 5, 5) self.assertRaises(TypeError, Envelope, 'foo') self.assertRaises(GDALException, Envelope, (1, 1, 0, 0)) try: Envelope(0, 0, 0, 0) except GDALException: 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)