/django/contrib/gis/gdal/tests/test_envelope.py
https://code.google.com/p/mango-py/ · Python · 95 lines · 80 code · 15 blank · 0 comment · 2 complexity · 2d51986464d56cd38bac0cf153ccbe26 MD5 · raw file
- 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())