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__ = "$Revision$"
# $Source$
# $Id$

from Thuban import _

import unittest
import os

import support
support.initthuban()

from Thuban.Model.scalebar import *

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, '')


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	from Thuban import _
17
18	import unittest
19	import os
20
21	import support
22	support.initthuban()
23
24	from Thuban.Model.scalebar import *
25
26	class TestScalebar(unittest.TestCase, support.FloatComparisonMixin):
27
28	"""Test cases for the Thuban scalebar calculations
29	"""
30
31	def test_deriveInterval(self):
32	"""Test scalebar.deriveInterval()"""
33
34	# Zero savety
35	interval, unit = deriveInterval(100, 0.0)
36	self.assertEquals(interval, -1)
37	self.assertEquals(unit, '')
38
39	# meters
40	interval, unit = deriveInterval(100, 0.5)
41	self.assertEquals(interval, 200)
42	self.assertEquals(unit, 'm')
43
44	# kilometer conversion
45	interval, unit = deriveInterval(100, 0.05)
46	self.assertEquals(interval, 2)
47	self.assertEquals(unit, 'km')
48
49	def test_roundInterval(self):
50	"""Test scalebar.roundInterval()"""
51
52	# 0.0005
53	interval, label = roundInterval(0.000545943795)
54	self.assertFloatEqual(interval, 0.0005)
55	self.assertEquals(label, '0.0005')
56
57	# 0.005
58	interval, label = roundInterval(0.00545943795)
59	self.assertFloatEqual(interval, 0.005)
60	self.assertEquals(label, '0.005')
61
62	# 0.05
63	interval, label = roundInterval(0.0545943795)
64	self.assertFloatEqual(interval, 0.05)
65	self.assertEquals(label, '0.05')
66
67	# 0.5
68	interval, label = roundInterval(0.545943795)
69	self.assertFloatEqual(interval, 0.5)
70	self.assertEquals(label, '0.5')
71
72	# 5
73	interval, label = roundInterval(5.45943795)
74	self.assertFloatEqual(interval, 5)
75	self.assertEquals(label, '5')
76
77	# 50
78	interval, label = roundInterval(54.5943795)
79	self.assertFloatEqual(interval, 50)
80	self.assertEquals(label, '50')
81
82	# 500
83	interval, label = roundInterval(545.943795)
84	self.assertFloatEqual(interval, 500)
85	self.assertEquals(label, '500')
86
87	# 5000
88	interval, label = roundInterval(5459.43795)
89	self.assertFloatEqual(interval, 5000)
90	self.assertEquals(label, '5000')
91
92	# 50000
93	interval, label = roundInterval(54594.3795)
94	self.assertFloatEqual(interval, 50000)
95	self.assertEquals(label, '50000')
96
97	# 500000
98	interval, label = roundInterval(545943.795)
99	self.assertFloatEqual(interval, -1)
100	self.assertEquals(label, '')
101
102
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