test/unit/test_unit.py

   1 import sys
   2 if sys.path[0] != "../..":
   3     sys.path.insert(0, "../..")
   4
   5 import unittest
   6
   7 import types
   8 from pyx import *
   9
  10 class UnitTestCase(unittest.TestCase):
  11
  12     def testTrueUnits(self):
  13         self.failUnlessAlmostEqual(unit.tom(unit.t_m*42), 42)
  14         self.failUnlessAlmostEqual(unit.tocm(unit.t_cm*42), 42)
  15         self.failUnlessAlmostEqual(unit.tomm(unit.t_mm*42), 42)
  16         self.failUnlessAlmostEqual(unit.toinch(unit.t_inch*42), 42)
  17         self.failUnlessAlmostEqual(unit.topt(unit.t_pt*42), 42)
  18
  19     def testUserUnits(self):
  20         unit.set(uscale=2)
  21         self.failUnlessAlmostEqual(unit.tom(unit.m*42), 84)
  22         self.failUnlessAlmostEqual(unit.tocm(unit.cm*42), 84)
  23         self.failUnlessAlmostEqual(unit.tomm(unit.mm*42), 84)
  24         self.failUnlessAlmostEqual(unit.toinch(unit.inch*42), 84)
  25         self.failUnlessAlmostEqual(unit.topt(unit.pt*42), 84)
  26         unit.set(uscale=1)
  27
  28     def testVisualUnits(self):
  29         unit.set(vscale=3)
  30         self.failUnlessAlmostEqual(unit.tom(unit.v_m*42), 126)
  31         self.failUnlessAlmostEqual(unit.tocm(unit.v_cm*42), 126)
  32         self.failUnlessAlmostEqual(unit.tomm(unit.v_mm*42), 126)
  33         self.failUnlessAlmostEqual(unit.toinch(unit.v_inch*42), 126)
  34         self.failUnlessAlmostEqual(unit.topt(unit.v_pt*42), 126)
  35         unit.set(vscale=1)
  36
  37     def testWidthUnits(self):
  38         unit.set(wscale=4)
  39         self.failUnlessAlmostEqual(unit.tom(unit.w_m*42), 168)
  40         self.failUnlessAlmostEqual(unit.tocm(unit.w_cm*42), 168)
  41         self.failUnlessAlmostEqual(unit.tomm(unit.w_mm*42), 168)
  42         self.failUnlessAlmostEqual(unit.toinch(unit.w_inch*42), 168)
  43         self.failUnlessAlmostEqual(unit.topt(unit.w_pt*42), 168)
  44         unit.set(wscale=1)
  45
  46     def testTeXUnits(self):
  47         unit.set(xscale=5)
  48         self.failUnlessAlmostEqual(unit.tom(unit.x_m*42), 210)
  49         self.failUnlessAlmostEqual(unit.tocm(unit.x_cm*42), 210)
  50         self.failUnlessAlmostEqual(unit.tomm(unit.x_mm*42), 210)
  51         self.failUnlessAlmostEqual(unit.toinch(unit.x_inch*42), 210)
  52         self.failUnlessAlmostEqual(unit.topt(unit.x_pt*42), 210)
  53         unit.set(xscale=1)
  54
  55     def testMixedUnits(self):
  56         unit.set(uscale=2, vscale=3, wscale=4, xscale=5)
  57         self.failUnlessAlmostEqual(unit.tom(42*unit.t_m + 42*unit.m + 42*unit.v_m + 42*unit.w_m + 42*unit.x_m), 630)
  58         self.failUnlessAlmostEqual(unit.tocm(42*unit.t_cm + 42*unit.cm + 42*unit.v_cm + 42*unit.w_cm + 42*unit.x_cm), 630)
  59         self.failUnlessAlmostEqual(unit.toinch(42*unit.t_inch + 42*unit.inch + 42*unit.v_inch + 42*unit.w_inch + 42*unit.x_inch), 630)
  60         self.failUnlessAlmostEqual(unit.topt(42*unit.t_pt + 42*unit.pt + 42*unit.v_pt + 42*unit.w_pt + 42*unit.x_pt), 630)
  61         unit.set(uscale=1, vscale=1, wscale=1, xscale=1)
  62
  63     def testCompareUnits(self):
  64         assert unit.cm*41 < unit.cm*42, "comparision error"
  65         assert unit.cm*42 == unit.cm*42, "numbers should be equal (might be unstable)"
  66         assert unit.cm*43 > unit.cm*42, "comparision error"
  67         assert unit.cm*41 < 42, "comparision error"
  68         assert unit.cm*42 == 42, "numbers should be equal (might be unstable)"
  69         assert unit.cm*43 > 42, "comparision error"
  70         assert 42 > unit.cm*41, "comparision error"
  71         assert 42 == unit.cm*42, "numbers should be equal (might be unstable)"
  72         assert 42 < unit.cm*43, "comparision error"
  73
  74
  75 if __name__ == "__main__":
  76     unittest.main()