test_dflee is unstable

[djgroen]

test_dflee periodically throws an error, as it appears to deliver unstable outcomes. Perhaps the assertions are too tight?

[djgroen]

Example error:

>               assert e.agents[0].location.name == "A"
E               AssertionError: assert 'B' == 'A'
E                 - A
E                 + B

tests/test_dflee.py:344: AssertionError
------------------------------------------------------------------------------------------- Captured stdout call -------------------------------------------------------------------------------------------
locations [['A', 'AB', 'ABC', '1.0', '1.0', 'flood_zone', '', '200000000', ''], ['B', 'AB', 'ABC', '1.0', '1.0', 'flood_zone', '', '1000000000', ''], ['C', 'C', 'ABC', '1.0', '1.0', 'town', '', '100', ''], ['C2', 'C', 'ABC', '1.0', '1.0', 'town', '', '200', ''], ['D', 'D', 'DEF', '1.0', '1.0', 'camp', '', '30000', ''], ['E', 'EF', 'DEF', '1.0', '1.0', 'camp', '', '20000', ''], ['F', 'EF', 'DEF', '1.0', '1.0', 'camp', '', '10000', '']]
{'A': [0, 0, 1, 1, 2, 1, 1, 1, 1, 1, 1], 'B': [1, 1, 1, 3, 1, 1, 0, 0, 0, 0, 1]}
{'A': [0, 0, 1, 1, 2, 1, 1, 1, 1, 1, 1], 'B': [1, 1, 1, 3, 1, 1, 0, 0, 0, 0, 1]}
0 100 100 100 100 100 100 100
------------------------------------------------------------------------------------------- Captured stderr call -------------------------------------------------------------------------------------------
YAML file: empty.yml
YAML: None
Take from population? false
Spawn decay set to: None, with interval 30
Move rules set to: {'FloodRulesEnabled': False, 'FloodForecaster': False, 'flood_forecaster_timescale': 0, 'MaxMoveSpeed': 360.0, 'MaxWalkSpeed': 35.0, 'MaxCrossingSpeed': 20.0, 'ForeignWeight': 1.0, 'CampWeight': 1.0, 'ConflictWeight': 0.31622776601667585, 'ConflictMoveChance': 1.0, 'CampMoveChance': 0.001, 'IDPCampMoveChance': 0.1, 'DefaultMoveChance': 0.3, 'AwarenessLevel': 1, 'CapacityBuffer': 0.9, 'CapacityScaling': 1.0, 'AvoidShortStints': False, 'StartOnFoot': False, 'DistanceSoftening': 10.0, 'WeightSoftening': 0.0, 'WeightPower': 1.0, 'DistancePower': 1.0, 'StayCloseToHome': False, 'HomeDistancePower': 0.5, 'UsePopForLocWeight': False, 'PopPowerForLocWeight': 0.1, 'MovechancePopBase': 10000.0, 'MovechancePopScaleFactor': 0.0, 'PruningThreshold': 1.0, 'ChildrenAvoidHazards': False, 'BoysTakeRisk': False, 'MatchCampEthnicity': False, 'MatchTownEthnicity': False, 'MatchConflictEthnicity': False, 'FloodLocWeights': [0.0, 1.0, 1.0, 1.0, 1.0], 'FloodMovechances': [0.0, 1.0, 1.0, 1.0, 1.0], 'FloodForecasterTimescale': 2, 'FloodForecasterEndTime': 6, 'FloodForecasterWeights': [1.0, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.3, 0.1, 0.3, 0.3, 0.1, 0.1, 0.1, 0.0, 0.0], 'FloodAwarenessWeights': [0.0, 0.5, 1.0]}
appending
header ['name', 'region', 'country', 'gps_x', 'gps_y', 'location_type', 'conflict_date', 'pop/cap', ''] ['#"name"', 'region', 'country', 'lat', 'lon', 'location_type', 'conflict_date', 'population', ''] 9
link header ['name1', 'name2', 'distance', 'forced_redirection'] ['#"name1"', 'name2', 'distance', 'forced_redirection'] 4
Home country set to:  ABC
Location name: A, X: 1.0, Y: 1.0, movechance: 0.3, cap: -1, pop: 200000000, country: ABC, conflict? -1.0, camp? False, flood_zone? True, foreign? False, attributes: {'': ''}
Location name: B, X: 1.0, Y: 1.0, movechance: 0.3, cap: -1, pop: 1000000000, country: ABC, conflict? -1.0, camp? False, flood_zone? True, foreign? False, attributes: {'': ''}
Location name: C, X: 1.0, Y: 1.0, movechance: 0.3, cap: -1, pop: 100, country: ABC, conflict? -1.0, camp? False, flood_zone? False, foreign? False, attributes: {'': ''}
Location name: C2, X: 1.0, Y: 1.0, movechance: 0.3, cap: -1, pop: 200, country: ABC, conflict? -1.0, camp? False, flood_zone? False, foreign? False, attributes: {'': ''}
Location name: D, X: 1.0, Y: 1.0, movechance: 0.001, cap: 30000, pop: 0, country: DEF, conflict? -1.0, camp? True, flood_zone? False, foreign? True, attributes: {'': ''}
Location name: E, X: 1.0, Y: 1.0, movechance: 0.001, cap: 20000, pop: 0, country: DEF, conflict? -1.0, camp? True, flood_zone? False, foreign? True, attributes: {'': ''}
Location name: F, X: 1.0, Y: 1.0, movechance: 0.001, cap: 10000, pop: 0, country: DEF, conflict? -1.0, camp? True, flood_zone? False, foreign? True, attributes: {'': ''}
Warning: location graph has 0 conflict zones (ignore if conflicts.csv is used).
========================================================================================= short test summary info ==========================================================================================
FAILED tests/test_dflee.py::test_agent_flood_awareness - AssertionError: assert 'B' == 'A'
======================================================================================= 1 failed, 25 passed in 2.27s =======================================================================================
c

To reproduce this and other errors in this test, you may need to rerun pytest locally 10+ times.

This can be done by using:
pytest tests/