WIP-pyshapelib-bramz/test/test_scalebar.py

# Copyright (c) 2002 by Intevation GmbH
# Authors:
# Frank Koormann <[email protected]>
#
# This program is free software under the GPL (>=v2)
# Read the file COPYING coming with Thuban for details.

"""
Test the Thuban scalebar calculations
"""

__version__ = "$Revision$"
# $Source$
# $Id$

import unittest
import os

import support
support.initthuban()

from Thuban.Model.scalebar import deriveInterval, roundInterval

class TestScalebar(unittest.TestCase, support.FloatComparisonMixin):

    """Test cases for the Thuban scalebar calculations
    """

    def test_deriveInterval(self):
        """Test scalebar.deriveInterval()"""

        # Zero savety
        interval, unit = deriveInterval(100, 0.0)
        self.assertEquals(interval, -1)
        self.assertEquals(unit, '')

        # meters
        interval, unit = deriveInterval(100, 0.5)
        self.assertEquals(interval, 200)
        self.assertEquals(unit, 'm')
    
        # kilometer conversion
        interval, unit = deriveInterval(100, 0.05)
        self.assertEquals(interval, 2)
        self.assertEquals(unit, 'km')
    
    def test_roundInterval(self):
        """Test scalebar.roundInterval()"""
        
        # 0.0005
        interval, label = roundInterval(0.000545943795)
        self.assertFloatEqual(interval, 0.0005)
        self.assertEquals(label, '0.0005')
        
        # 0.005
        interval, label = roundInterval(0.00545943795)
        self.assertFloatEqual(interval, 0.005)
        self.assertEquals(label, '0.005')
            
        # 0.05
        interval, label = roundInterval(0.0545943795)
        self.assertFloatEqual(interval, 0.05)
        self.assertEquals(label, '0.05')
            
        # 0.5
        interval, label = roundInterval(0.545943795)
        self.assertFloatEqual(interval, 0.5)
        self.assertEquals(label, '0.5')
            
        # 5
        interval, label = roundInterval(5.45943795)
        self.assertFloatEqual(interval, 5)
        self.assertEquals(label, '5')
    
        # 50
        interval, label = roundInterval(54.5943795)
        self.assertFloatEqual(interval, 50)
        self.assertEquals(label, '50')
    
        # 500
        interval, label = roundInterval(545.943795)
        self.assertFloatEqual(interval, 500)
        self.assertEquals(label, '500')
    
        # 5000
        interval, label = roundInterval(5459.43795)
        self.assertFloatEqual(interval, 5000)
        self.assertEquals(label, '5000')
    
        # 50000
        interval, label = roundInterval(54594.3795)
        self.assertFloatEqual(interval, 50000)
        self.assertEquals(label, '50000')
    
        # 500000
        interval, label = roundInterval(545943.795)
        self.assertFloatEqual(interval, -1)
        self.assertEquals(label, '')

if __name__ == "__main__":
    unittest.main()

1	# Copyright (c) 2002 by Intevation GmbH
2	# Authors:
3	# Frank Koormann <[email protected]>
4	#
5	# This program is free software under the GPL (>=v2)
6	# Read the file COPYING coming with Thuban for details.
7
8	"""
9	Test the Thuban scalebar calculations
10	"""
11
12	__version__ = "$Revision$"
13	# $Source$
14	# $Id$
15
16	import unittest
17	import os
18
19	import support
20	support.initthuban()
21
22	from Thuban.Model.scalebar import deriveInterval, roundInterval
23
24	class TestScalebar(unittest.TestCase, support.FloatComparisonMixin):
25
26	"""Test cases for the Thuban scalebar calculations
27	"""
28
29	def test_deriveInterval(self):
30	"""Test scalebar.deriveInterval()"""
31
32	# Zero savety
33	interval, unit = deriveInterval(100, 0.0)
34	self.assertEquals(interval, -1)
35	self.assertEquals(unit, '')
36
37	# meters
38	interval, unit = deriveInterval(100, 0.5)
39	self.assertEquals(interval, 200)
40	self.assertEquals(unit, 'm')
41
42	# kilometer conversion
43	interval, unit = deriveInterval(100, 0.05)
44	self.assertEquals(interval, 2)
45	self.assertEquals(unit, 'km')
46
47	def test_roundInterval(self):
48	"""Test scalebar.roundInterval()"""
49
50	# 0.0005
51	interval, label = roundInterval(0.000545943795)
52	self.assertFloatEqual(interval, 0.0005)
53	self.assertEquals(label, '0.0005')
54
55	# 0.005
56	interval, label = roundInterval(0.00545943795)
57	self.assertFloatEqual(interval, 0.005)
58	self.assertEquals(label, '0.005')
59
60	# 0.05
61	interval, label = roundInterval(0.0545943795)
62	self.assertFloatEqual(interval, 0.05)
63	self.assertEquals(label, '0.05')
64
65	# 0.5
66	interval, label = roundInterval(0.545943795)
67	self.assertFloatEqual(interval, 0.5)
68	self.assertEquals(label, '0.5')
69
70	# 5
71	interval, label = roundInterval(5.45943795)
72	self.assertFloatEqual(interval, 5)
73	self.assertEquals(label, '5')
74
75	# 50
76	interval, label = roundInterval(54.5943795)
77	self.assertFloatEqual(interval, 50)
78	self.assertEquals(label, '50')
79
80	# 500
81	interval, label = roundInterval(545.943795)
82	self.assertFloatEqual(interval, 500)
83	self.assertEquals(label, '500')
84
85	# 5000
86	interval, label = roundInterval(5459.43795)
87	self.assertFloatEqual(interval, 5000)
88	self.assertEquals(label, '5000')
89
90	# 50000
91	interval, label = roundInterval(54594.3795)
92	self.assertFloatEqual(interval, 50000)
93	self.assertEquals(label, '50000')
94
95	# 500000
96	interval, label = roundInterval(545943.795)
97	self.assertFloatEqual(interval, -1)
98	self.assertEquals(label, '')
99
100	if __name__ == "__main__":
101	unittest.main()
102
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