Right align total debit/credit on status pages

[bluechips.git] / bluechips / tests / model / test_expenditure.py

diff --git a/bluechips/tests/model/test_expenditure.py b/bluechips/tests/model/test_expenditure.py
index 3af4af62e0c84db2042810c8a557749f27ffe69c..2bf8037cbc57dc1402998be412c55f30a26dcff4 100644 (file)
--- a/bluechips/tests/model/test_expenditure.py
+++ b/bluechips/tests/model/test_expenditure.py
@@ -1,18 +1,95 @@
+from decimal import Decimal
+
 from unittest import TestCase
 from bluechips import model
+from bluechips.model import meta
 from bluechips.model.types import Currency
 
 class TestExpenditure(TestCase):
     def setUp(self):
-        self.u = model.User('chaz', u'Charles Root', False)
-        self.e = model.Expenditure(self.u, Currency('445.27'),
+        self.u = model.User(u'chaz', u'Charles Root', False)
+        self.e = model.Expenditure(self.u, Currency('444.88'),
                                    u'chaz buys lunch')
+        meta.Session.add(self.u)
+        meta.Session.add(self.e)
+        meta.Session.commit()
 
     def test_constructor(self):
         assert self.e.spender == self.u
-        assert self.e.amount == Currency('445.27')
+        assert self.e.amount == Currency('444.88')
         assert self.e.description == u'chaz buys lunch'
 
     def test_repr(self):
         assert (repr(self.e) == 
-                '<Expenditure: spender: Charles Root spent: $445.27>')
+                '<Expenditure: spender: Charles Root spent: $444.88>')
+
+    def test_even_split(self):
+        self.e.even_split()
+        meta.Session.commit()
+        for sp in self.e.splits:
+            assert sp.share == Currency('111.22')
+
+    def test_split_change_to_zero(self):
+        self.e.even_split()
+        meta.Session.commit()
+        users = meta.Session.query(model.User).all()
+        split_dict = dict((user, Decimal('0')) for user in users)
+        split_dict[self.u] = Decimal(1)
+        self.e.split(split_dict)
+
+    def _two_way_split_test(self, amount, min, max):
+        e2 = model.Expenditure(self.u, amount,
+                              u'testing splits')
+        u2 = model.User(u'bo', u'Bo Jangles', False)
+        meta.Session.add(u2)
+        meta.Session.add(e2)
+        meta.Session.commit()
+        split_dict = {}
+        split_dict[self.u] = Decimal(1)
+        split_dict[u2] = Decimal(1)
+        e2.split(split_dict)
+        assert min <= e2.share(u2) <= max
+        meta.Session.delete(e2)
+        meta.Session.delete(u2)
+        meta.Session.commit()
+
+    def test_split_rounds_down(self):
+        self._two_way_split_test(Currency('40.01'),
+                                 Currency('20.00'),
+                                 Currency('20.01'))
+
+    def test_split_rounds_up(self):
+        self._two_way_split_test(Currency('39.99'),
+                                 Currency('19.99'),
+                                 Currency('20.00'))
+
+    def test_split_small(self):
+        self._two_way_split_test(Currency('0.01'),
+                                 Currency('0.00'),
+                                 Currency('0.01'))
+
+    def test_split_small_negative(self):
+        self._two_way_split_test(Currency('-0.01'),
+                                 Currency('-0.01'),
+                                 Currency('-0.00'))
+
+    def test_split_irrational_rounding(self):
+        e2 = model.Expenditure(self.u, Decimal('2375.00'),
+                               u'rounding test')
+        u2 = model.User(u'rat', u'Irrational Rat', False)
+        meta.Session.add(u2)
+        meta.Session.add(e2)
+        meta.Session.commit()
+        split_dict = {}
+        split_dict[u2] = Decimal('750.00')
+        split_dict[self.u] = Decimal('4000.00')
+        e2.split(split_dict)
+        assert e2.share(u2) == Decimal('375.00')
+        meta.Session.delete(e2)
+        meta.Session.delete(u2)
+        meta.Session.commit()
+
+    def tearDown(self):
+        meta.Session.delete(self.e)
+        meta.Session.delete(self.u)
+        meta.Session.commit()