def test_circular_invasions(self):
p1, p2, p3 = self.generate_players(3)
t1, t2, t3 = self.generate_territories(owners=[p1, p2, p3])
self.generate_troops({t1: 5, t2: 20, t3: 20})
iset = InstructionSet()
i1 = Movement(issuer=p1,
origin=t1,
destination=t2,
num_troops=4,
instruction_set=iset)
i2 = Movement(issuer=p2,
origin=t2,
destination=t3,
num_troops=4,
instruction_set=iset)
i3 = Movement(issuer=p3,
origin=t3,
destination=t1,
num_troops=4,
instruction_set=iset)
i1.execute()
self.assertTrue(i1.is_executed)
self.assertTrue(i3.is_executed)
self.assertTrue(i2.is_executed)
# First, player 1 slays 2 troops of player 2 with 4 units, leaving 18 in territory 2 and one in territory 1.
# Then, player 2 slays 2 troops of player 3, leaving 14 in territory 2 and 18 in territory 3.
# Finally, player 3 slays the remaining troop of player 1 and overtakes territory 1 with one troop.
self.assertTerritoryHasTroops(t2, 14)
self.assertTerritoryHasTroops(t3, 14)
self.assertTerritoryHasTroops(t1, 1)
self.assertTerritoryOwner(t1, p3)
def test_invasion_can_be_rendered_partial_by_circular_invasions(self):
p1, p2, p3 = self.generate_players(3)
t1, t2, t3 = self.generate_territories(owners=[p1, p2, p3])
self.generate_troops({t1: 5, t2: 5, t3: 5})
iset = InstructionSet()
i1 = Movement(issuer=p1,
origin=t1,
destination=t2,
num_troops=4,
instruction_set=iset)
i2 = Movement(issuer=p2,
origin=t2,
destination=t3,
num_troops=4,
instruction_set=iset)
i3 = Movement(issuer=p3,
origin=t3,
destination=t1,
num_troops=4,
instruction_set=iset)
# At this point, all instructions are valid: 4 troops are being moved and 5 are in the territory.
# However, due to the circular resolve, instruction 1 kills some troops from territory 2, rendering
# instruction 2 partially valid. This should be permitted.
i1.execute()
def test_simple_invasion_from_multiple_origins(self):
p1, p2 = self.generate_players()
t1, t2, t3 = self.generate_territories(owners=[p1, p1, p2])
self.generate_troops({t1: 3, t2: 4, t3: 20})
iset = InstructionSet()
i1 = Movement(issuer=p1,
origin=t1,
destination=t3,
num_troops=2,
instruction_set=iset)
Movement(issuer=p1,
origin=t2,
destination=t3,
num_troops=3,
instruction_set=iset)
i1.execute()
# Both movements have been executed
self.assertTerritoryHasTroops(t1, 1)
self.assertTerritoryHasTroops(t2, 1)
# Invasion penalty applied only once
self.assertTerritoryHasTroops(t3, 20 - (5 - 2))
def test_multiple_origin_skirmish_with_different_players(self):
p1, p2, p3 = self.generate_players(3)
t1, t2, t3 = self.generate_territories(owners=[p1, p2, p3])
self.generate_troops({t1: 6, t2: 4, t3: 10})
iset = InstructionSet()
i1 = Movement(issuer=p1,
origin=t1,
destination=t3,
num_troops=5,
instruction_set=iset)
i2 = Movement(issuer=p2,
origin=t2,
destination=t3,
num_troops=2,
instruction_set=iset)
i1.execute()
# There is a skirmish between Player 1 and Player 2, even though Player 3 is the one whose territory
# is being attacked. Both troops from player 2 that were sent should be destroyed by Player 1, and
# the remainder of Player 1's troops should trigger an invasion to Player 3's territory.
self.assertTerritoryHasTroops(t1, 1)
self.assertTerritoryHasTroops(t2, 2)
# Player 1 should have 3 of its 5 units remaining that go onward to invade.
# This means one of Player 3's troops is expected to be slain.
self.assertTerritoryHasTroops(t3, 9)
# In executing the first order, the second order involved in the skirmish was also executed automatically.
self.assertTrue(i2.is_executed)
def test_mutual_invasion(self):
p1, p2 = self.generate_players()
t1, t2 = self.generate_territories(owners=[p1, p2])
self.generate_troops({t1: 6, t2: 10})
iset = InstructionSet()
i1 = Movement(issuer=p1,
origin=t1,
destination=t2,
num_troops=3,
instruction_set=iset)
i2 = Movement(issuer=p2,
origin=t2,
destination=t1,
num_troops=3,
instruction_set=iset)
i1.execute()
# The first Instruction in the mutual invasion has triggered the other Instruction as well,
# due to the circular loop. Note that the Troop penalty should be incurred only once for each
# Territory, hence, the second territory should have 4 Troops remaining (10 - 2 - (3-2) - 3).
# The first territory is neutralized: 6 - 3 (invasion) - 3 (being invaded).
self.assertTerritoryHasTroops(t1, 0)
self.assertTerritoryHasTroops(t2, 4)
self.assertTerritoryNeutral(t1)
self.assertTerritoryOwner(t2, p2)
self.assertTrue(i2.is_executed)
def test_movement_can_be_executed_only_once(self):
p1, = self.generate_players(1)
t1, t2 = self.generate_territories(owners=[p1])
self.generate_troops({t1: 3})
iset = InstructionSet()
order = Movement(issuer=p1,
origin=t1,
destination=t2,
num_troops=1,
instruction_set=iset).execute()
with self.assertRaises(InstructionAlreadyExecuted):
order.execute()
def test_triple_skirmish_with_three_players(self):
p1, p2, p3, p4 = self.generate_players(4)
t1, t2, t3, t4 = self.generate_territories(owners=[p1, p2, p3, p4])
self.generate_troops({t1: 6, t2: 3, t3: 10, t4: 1})
iset = InstructionSet()
i1 = Movement(issuer=p1,
origin=t1,
destination=t4,
num_troops=5,
instruction_set=iset)
i2 = Movement(issuer=p2,
origin=t2,
destination=t4,
num_troops=2,
instruction_set=iset)
i3 = Movement(issuer=p3,
origin=t3,
destination=t4,
num_troops=9,
instruction_set=iset)
# FIXME: This test passes because we execute the instruction with the biggest army set.
# This should not be relevant.
i3.execute()
# All attackers have sent the maximum number of troops they had available.
self.assertTerritoryHasTroops(t1, 1)
self.assertTerritoryHasTroops(t2, 1)
self.assertTerritoryHasTroops(t3, 1)
# Notice that in the skirmishes, all troops are to be vanquished save 4 of Player 3's troops.
# These 4 troops then go on to invade the single troop in t4 and take over.
self.assertTerritoryHasTroops(t4, 1)
self.assertTerritoryOwner(t4, p3)
# In resolving the skirmishes, all orders are finalized.
self.assertTrue(i1.is_executed)
self.assertTrue(i2.is_executed)
self.assertTrue(i3.is_executed)
def test_order_of_chain_of_invasions(self):
p1, p2, p3 = self.generate_players(3)
t1, t2, t3 = self.generate_territories(owners=[p1, p2, p3])
self.generate_troops({t1: 6, t2: 6, t3: 6})
iset = InstructionSet()
i1 = Movement(issuer=p1,
origin=t1,
destination=t2,
num_troops=4,
instruction_set=iset)
i2 = Movement(issuer=p2,
origin=t2,
destination=t3,
num_troops=4,
instruction_set=iset)
i1.execute()
self.assertTerritoryHasTroops(t1, 2)
self.assertTrue(i1.is_executed)
self.assertTrue(i2.is_executed)
self.assertTerritoryHasTroops(t2, 0)
self.assertTerritoryHasTroops(t3, 4)
