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	frank	863	# 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	frank	868	from Thuban.Model.scalebar import deriveInterval, roundInterval
23	frank	863
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	frank	868	# Zero savety
33			interval, unit = deriveInterval(100, 0.0)
34			self.assertEquals(interval, -1)
35			self.assertEquals(unit, '')
36	frank	863
37	frank	868	# 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	frank	863	def test_roundInterval(self):
48			"""Test scalebar.roundInterval()"""
49	frank	868
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	frank	916
100			if __name__ == "__main__":
101			unittest.main()
102
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