def test_deme_number_of_leaders_is_number_of_individuals_with_that_role(
self, pseudorandom, getFitnessParameters):
pseudorandom(0)
self.pop = Pop(fit_fun='socialclass', inst='test/test')
self.pop.fitnessParameters = getFitnessParameters('socialclass')
self.pop.numberOfDemes = 3
self.pop.initialDemeSize = 10
self.pop.initialPhenotypes = [0.1, 0.2, 0.3, 0.6]
self.pop.migrationRate = 0
self.pop.mutationRate = 0
self.pop.createAndPopulateDemes()
self.pop.clearDemeInfo()
self.pop.populationMutationMigration()
self.pop.updateDemeInfoPreProduction()
leaderCountPerDeme = [0] * self.pop.numberOfDemes
for ind in self.pop.individuals:
leaderCountPerDeme[ind.currentDeme] += ind.leader
for deme in range(self.pop.numberOfDemes):
nl = self.pop.demes[deme].numberOfLeaders
assert nl != 10, "all individuals in deme have been elected leaders when proportion should be about: " + self.pop.initialPhenotypes[
3]
assert leaderCountPerDeme[
deme] == nl, "deme counts {0} leaders when there are {1}".format(
nl, leaderCountPerDeme[deme])
def test_demography_file_has_correct_output(self, pseudorandom, runSim,
clearOutputFiles):
pseudorandom(69)
self.pop = Pop(inst='test/test')
self.pop.mutationRate = 0.1
self.pop.numberOfDemes = 5
self.pop.initialDemeSize = 8
self.pop.fitnessParameters.clear()
self.pop.fitnessParameters.update({
"fb": 10,
"b": 0.5,
"c": 0.05,
"gamma": 0.01
})
self.pop.createAndPopulateDemes()
expDemog = []
for gen in range(5):
self.pop.lifecycle()
assert self.pop.numberOfDemes == 5
expDemog.append(self.pop.demography / self.pop.numberOfDemes)
pseudorandom(69)
runSim()
obsDemog = fman.extractColumnFromFile('test/test/out_demography.txt',
0, float)
assert obsDemog == expDemog, "unexpected value of group size has been printed"
clearOutputFiles('test/test/')
def launchSimulation(self, path, mutbound=True):
folderName = path.split('/')[-1]
fitfun = folderName.split('_')[0]
populationInstance = Pop(fit_fun=fitfun,
inst=path,
mutationBoundaries=mutbound)
populationInstance.runSimulation()
def test_consensus_takes_time_to_reach(self):
self.pop = Pop(inst='test/test')
self.pop.fit_fun = 'debate'
self.pop.initialPhenotypes = [0.1, 0.2, 0.3, 0.4]
self.pop.numberOfDemes = 3
self.pop.initialDemeSize = 2
self.pop.mutationRate = 0
self.pop.migrationRate = 0
self.pop.createAndPopulateDemes()
self.pop.clearDemeInfo()
self.pop.populationMutationMigration()
self.pop.updateDemeInfoPreProduction()
for deme in self.pop.demes:
assert deme.politicsValues[
"consensusTime"] is not None, "consensus reaching time has not been calculated"
assert deme.politicsValues[
"consensusTime"] > 0, "consensus reaching should take a bare minimum of time"
disagreement = self.pop.fitnessParameters[
"aconsensus"] * deme.demography * deme.varPhenotypes[2]
assert deme.politicsValues[
"consensusTime"] == self.pop.fitnessParameters[
"epsilon"] + disagreement / (
self.pop.fitnessParameters["bconsensus"] +
disagreement)
def test_fertility_depends_on_public_good(self, getFitnessParameters):
fitfun = 'policing'
self.fakepop = Pop(fit_fun=fitfun, inst='test/test')
self.fakepop.fitnessParameters = getFitnessParameters(fitfun)
self.fakepop.numberOfDemes = 2
self.fakepop.initialDemeSize = 1
self.fakepop.individualResources = 4
self.fakepop.initialPhenotypes = [0.2, 0.3]
self.fakepop.numberOfPhenotypes = len(self.fakepop.initialPhenotypes)
self.fakepop.migrationRate = 0
self.fakepop.mutationRate = 0
self.fakepop.createAndPopulateDemes()
self.fakepop.clearDemeInfo()
self.fakepop.populationMutationMigration()
for ind in range(self.fakepop.demography):
indiv = self.fakepop.individuals[ind]
if indiv.currentDeme == 0:
self.fakepop.fitnessParameters.update({"pg": 1})
indiv.fertility(self.fakepop.fit_fun,
**self.fakepop.fitnessParameters)
fertility0 = indiv.fertilityValue
elif indiv.currentDeme == 1:
self.fakepop.fitnessParameters.update({"pg": 3})
indiv.fertility(self.fakepop.fit_fun,
**self.fakepop.fitnessParameters)
fertility1 = indiv.fertilityValue
assert fertility0 < fertility1
gc.collect()
def test_consensus_value_defines_policing_amount(self):
self.pop = Pop(inst='test/test')
self.pop.fit_fun = 'debate'
self.pop.initialPhenotypes = [0.1, 0.2, 0.3, 0.4]
self.pop.numberOfDemes = 3
self.pop.initialDemeSize = 2
self.pop.mutationRate = 0
self.pop.migrationRate = 0
self.pop.createAndPopulateDemes()
self.pop.clearDemeInfo()
self.pop.populationMutationMigration()
self.pop.updateDemeInfoPreProduction()
self.pop.populationProduction()
self.pop.updateDemeInfoPostProduction()
allres = [0] * self.pop.numberOfDemes
for ind in self.pop.individuals:
allres[ind.currentDeme] += ind.resourcesAmount
for deme in self.pop.demes:
assert deme.progressValues["institutionQuality"] is not None
assert deme.progressValues["institutionQuality"] == (
deme.politicsValues['consensus'] * deme.publicGood *
self.pop.fitnessParameters['aquality'] /
allres[deme.id])**self.pop.fitnessParameters['alphaquality']
assert deme.progressValues["fineBudget"] is not None
assert deme.progressValues["fineBudget"] == deme.politicsValues[
'consensus'] * deme.publicGood * (
1 - self.pop.fitnessParameters['aquality'])
def test_group_labour_force_is_calculated_and_given_to_individual_instance(
self):
self.pop = Pop(fit_fun='technology', inst='test/test')
self.pop.numberOfDemes = 3
self.pop.initialDemeSize = 20
self.pop.createAndPopulateDemes()
self.deme = self.pop.demes[0]
assert hasattr(self.deme, "progressValues"), "make dict"
assert type(self.deme.progressValues) is dict
progressKeys = ["fine", "investmentReward"]
for key in progressKeys:
assert key in self.deme.progressValues
self.pop.clearDemeInfo()
for pheno in self.pop.demes[0].meanPhenotypes:
assert pheno is not None, "none phenotypes before migration"
self.pop.populationMutationMigration()
for pheno in self.pop.demes[0].meanPhenotypes:
assert pheno is not None, "none phenotypes before update"
self.pop.updateDemeInfoPreProduction()
self.pop.populationProduction()
self.pop.updateDemeInfoPostProduction()
self.demeAFTER = self.pop.demes[0]
for key in progressKeys:
assert self.demeAFTER.progressValues[key] is not None
# deme labour force = total private time: (demography - nleaders)(1-T1) + nleaders(1-T2)
# where T1 and T2 is effective time spent in debate by civilian and leader respectively
gc.collect()
def test_migrants_destinations_equally_likely_as_in_uniform_distribution(
self, pseudorandom, instantiateSingleIndividualsDemes):
pseudorandom(69)
self.fakepop = Pop(inst='test/test')
self.ds = 100
self.nd = 10
self.fakepop.createAndPopulateDemes(nDemes=self.nd, dSize=self.ds)
destinations = []
for ind in range(self.fakepop.demography):
indiv = self.fakepop.individuals[ind]
indiv.migrate(nDemes=self.fakepop.numberOfDemes, migRate=1)
destinations.append(indiv.destinationDeme)
observedCountUnsorted = Counter(destinations)
observedCount = []
for key, val in sorted(observedCountUnsorted.items()):
observedCount.append(val)
expectedCount = [self.ds for i in range(self.nd)]
chisq, pval = scistats.chisquare(observedCount, expectedCount)
assert len(expectedCount) == len(
observedCount), "len obs = {0}, len exp = {1}".format(
len(observedCount), len(expectedCount))
assert pval > 0.05, "Test for goodness of fit failed: obs = {0}, exp = {1}".format(
observedCount, expectedCount)
gc.collect()
def test_technology_updates_with_correct_number(self):
self.pop = Pop(fit_fun='technology', inst='test/test')
self.pop.numberOfDemes = 2
self.pop.initialDemeSize = 10
self.pop.fit_fun = 'technology'
self.pop.initialPhenotypes = [0.5] * 4
self.pop.createAndPopulateDemes()
assert self.pop.demes[
0].technologyLevel == self.pop.initialTechnologyLevel, "wrong technology level assigned to deme when created"
self.pop.clearDemeInfo()
assert self.pop.demes[
0].technologyLevel == self.pop.initialTechnologyLevel, "wrong technology level after first clearing"
self.pop.populationMutationMigration()
self.pop.updateDemeInfoPreProduction()
self.pop.populationProduction()
self.pop.updateDemeInfoPostProduction()
# calculate new technology level as it should be
publicGood = self.pop.demes[0].publicGood
tech = self.pop.demes[0].technologyLevel
tech_new = tech * (self.pop.fitnessParameters['atech'] +
((1 - self.pop.fitnessParameters['p']) * publicGood)
**(1 - self.pop.fitnessParameters['betaTech'])) / (
1 + self.pop.fitnessParameters['btech'] * tech)
self.pop.populationReproduction()
self.pop.clearDemeInfo()
assert self.pop.demes[
0].technologyLevel == tech_new, "wrong value for new technology level."
gc.collect()
def test_deme_gets_number_of_leaders(self, pseudorandom,
getFitnessParameters):
pseudorandom(10)
self.pop = Pop(fit_fun='socialclass', inst='test/test')
self.pop.fitnessParameters = getFitnessParameters('socialclass')
self.pop.numberOfDemes = 3
self.pop.initialDemeSize = 1000
self.pop.initialPhenotypes = [0.1, 0.2, 0.3, 0.6]
self.pop.migrationRate = 0
self.pop.mutationRate = 0
self.pop.createAndPopulateDemes()
self.pop.clearDemeInfo()
self.pop.populationMutationMigration()
self.pop.updateDemeInfoPreProduction()
plead = self.pop.initialPhenotypes[3]
for deme in self.pop.demes:
nlead = deme.numberOfLeaders
assert nlead is not None
assert type(nlead) is int
assert nlead >= 0
assert pytest.approx(nlead / deme.demography, 0.1) == plead
stat1, pval1 = scistats.ttest_1samp(
[1] * nlead + [0] * (deme.demography - nlead), plead)
#assert pval1 > 0.05, "T-test mean failed. Observed: {0}, Expected: {1}".format(nlead/deme.demography, plead)
self.test = scistats.binom_test(nlead,
deme.demography,
plead,
alternative="two-sided")
assert self.test > 0.05, "Success rate = {0} when proportion of leaders = {1}".format(
nlead / deme.demography, plead)
gc.collect()
def test_all_phenotype_means_in_output(self):
self.ntraits = 4
with open('test/test/' + INITIAL_PHENOTYPES_FILE, "w") as f:
for i in range(self.ntraits):
f.write('{0}\n'.format(i / self.ntraits))
self.fakepop = Pop(inst='test/test')
self.fakepop.numberOfDemes = 3
self.fakepop.initialDemeSize = 2
self.fakepop.numberOfGenerations = 5
self.fakepop.createAndPopulateDemes()
assert self.fakepop.numberOfPhenotypes == self.ntraits, "uh-oh, the test did not change the number of phenotypes"
self.fakepop.runSimulation()
with open('test/test/out_phenotypes.txt') as fp:
firstline = fp.readline()
phenotypeMeans = firstline.split(',')
### only take half of the line, since the second half is the variance in phenotypes, not the mean
assert len(
phenotypeMeans
) / 2 == self.ntraits, "Simulation returns mean of {0} phenotypes instead of {1}".format(
len(phenotypeMeans), self.ntraits)
os.remove('test/test/out_phenotypes.txt')
os.remove('test/test/out_demography.txt')
def test_demes_are_populated(self):
self.pop = Pop(inst='test/test')
self.pop.createAndPopulateDemes()
for deme in self.pop.demes:
assert deme.demography is not None, "Deme {0} is not populated".format(
deme)
gc.collect()
def test_population_contains_demes(self):
self.pop = Pop(inst='test/test')
self.pop.createAndPopulateDemes()
assert hasattr(self.pop, "demes"), "This population has no deme yet!"
for deme in self.pop.demes:
assert type(deme) is Dem
gc.collect()
def test_initial_deme_technology_is_not_null(self):
self.pop = Pop(inst='test/test')
self.pop.createAndPopulateDemes()
assert type(self.pop.demes[0].technologyLevel
) is float, "initial technology level info missing"
assert self.pop.demes[
0].technologyLevel > 0, "technology level cannot be null or negative"
gc.collect()
def test_migration_is_ran_at_the_population_level(self):
self.fakepop = Pop(inst='test/test')
self.nd = self.fakepop.numberOfDemes
self.fakepop.createAndPopulateDemes(self.nd, 10)
assert hasattr(self.fakepop, "populationMutationMigration"
), "Migration cannot be ran at the population level"
assert callable(self.fakepop.populationMutationMigration)
gc.collect()
def test_population_has_fitness_method_or_pgg_parameters(self):
self.fakepop = Pop(inst='test/test')
assert hasattr(self.fakepop,
"fitnessParameters"), "Provide fitness parameters"
if not hasattr(self.fakepop, "fitnessMethod"):
for key in ["fb", "b", "c", "gamma"]:
assert key in self.fakepop.fitnessParameters, "PGG parameter {0} not provided".format(
key)
def test_simulation_stops_if_population_extinct(self):
self.fakepop = Pop(inst='test/test')
self.fakepop.numberOfDemes = 10
self.fakepop.numberOfGenerations = 10
self.fakepop.fitnessParameters[
"fb"] = 0.0001 # to make the population die out
self.fakepop.createAndPopulateDemes()
assert self.fakepop.demography == self.fakepop.numberOfDemes * self.fakepop.initialDemeSize
def test_population_mutation_updates_individual_phenotypes(self):
self.fakepop = Pop(inst='test/test')
self.fakepop.numberOfDemes = 2
self.fakepop.initialDemeSize = 50
self.fakepop.migrationRate = 0
self.fakepop.mutationRate = 1
# the two following lines are very important so that the test does not fail at the boundaries,
# e.g. if phen = 0 and dev < 0, mutated phenotype will still be 0
self.fakepop.initialPhenotypes = [0.5]
self.fakepop.numberOfPhenotypes = 1
self.fakepop.createAndPopulateDemes(nDemes=self.fakepop.numberOfDemes,
dSize=self.fakepop.initialDemeSize)
origPhenDeme0 = []
origPhenDeme1 = []
for ind in self.fakepop.individuals:
if ind.currentDeme == 0:
origPhenDeme0.append(ind.phenotypicValues[0])
elif ind.currentDeme == 1:
origPhenDeme1.append(ind.phenotypicValues[0])
self.fakepop.clearDemeInfo()
self.fakepop.populationMutationMigration()
phenDeme0 = []
devDeme0 = []
phenDeme1 = []
devDeme1 = []
for ind in self.fakepop.individuals:
if ind.currentDeme == 0:
phenDeme0.append(ind.phenotypicValues[0])
devDeme0.append(ind.mutationDeviation[0])
elif ind.currentDeme == 1:
phenDeme1.append(ind.phenotypicValues[0])
devDeme1.append(ind.mutationDeviation[0])
assert len(origPhenDeme0) == len(
phenDeme0
), "Number of individuals in deme 0 have changed from {0} to {1} after mutation".format(
len(origPhenDeme0), len(phenDeme0))
assert len(origPhenDeme1) == len(
phenDeme1
), "Number of individuals in deme 1 have changed from {0} to {1} after mutation".format(
len(origPhenDeme1), len(phenDeme1))
for i in range(self.fakepop.initialDemeSize):
assert origPhenDeme0[i] != phenDeme0[
i], "Individual {0} in deme 0 mutated from {1} to {2} when deviation was supposed to be {3}".format(
i, origPhenDeme0[i], phenDeme0[i], devDeme0[i])
assert origPhenDeme1[i] != phenDeme1[
i], "Individual {0} in deme 1 mutated from {1} to {2} when deviation was supposed to be {3}".format(
i, origPhenDeme1[i], phenDeme1[i], devDeme1[i])
def test_fitness_function_runs_at_population_level(self):
self.pop = Pop(fit_fun='socialclass', inst='test/test')
self.pop.numberOfDemes = 3
self.pop.initialDemeSize = 5
self.pop.initialPhenotypes = [0.9, 0.7, 0.5, 0.3]
self.pop.createAndPopulateDemes()
try:
self.pop.lifecycle()
except ValueError as e:
assert False, str(e)
def test_individual_attributes_are_non_empty(self,
objectAttributesAreNotNone):
self.pop = Pop(inst='test/test')
self.pop.createAndPopulateDemes()
for ind in self.pop.individuals:
testObj, attrObj = objectAttributesAreNotNone(
ind, ["phenotypicValues", "currentDeme"])
assert testObj, "Individual {0} has attribute(s) {1} set to None".format(
ind, attrObj)
gc.collect()
def test_population_has_the_right_size(self):
self.howManyDemes = 10
self.howManyIndividualsPerDeme = 10
self.pop = Pop(inst='test/test')
self.pop.createAndPopulateDemes(nDemes=self.howManyDemes,
dSize=self.howManyIndividualsPerDeme)
assert len(
self.pop.individuals
) == self.howManyIndividualsPerDeme * self.howManyDemes, "You created a population of {0} individuals instead of {1}!".format(
len(self.pop.individuals),
self.howManyIndividualsPerDeme * self.howManyDemes)
def test_simulation_cycle(self):
fakepop = Pop(fit_fun='policingdemog', inst='test/test')
fakepop.numberOfDemes = 3
fakepop.initialDemeSize = 10
fakepop.numberOfGenerations = 10
try:
fakepop.runSimulation()
for f in glob.glob('test/test/out_*.txt'):
os.remove(f)
except ValueError as e:
assert False, str(e)
def test_program_requires_valid_fitness_function(self, clearOutputFiles):
self.population = Pop(fit_fun="gibberish", inst='test/test')
setattr(self.population, "numberOfGenerations", 4)
try:
self.population.runSimulation()
except KeyError as e:
assert str(e).replace(
"'", ""
) == 'Fitness function "gibberish" unknown. Add it to the functions in fitness.py', "Explain why the program fails!, not '{0}'".format(
e)
else:
assert False, "The program should return an error message when trying to run simulations with unknown fitness function".format(
self.population.numberOfDemes)
clearOutputFiles('test/test/')
def test_single_sim_reads_and_writes_from_same_folder(self):
dirpath = Path('simulations')
if dirpath.exists() and dirpath.is_dir():
shutil.rmtree(dirpath)
shutil.copytree('test/test', 'simulations')
self.pop = Pop(inst='simulations')
self.pop.numberOfGenerations = 3
self.pop.runSimulation()
self.outputfiles = ["out_consensus.txt", "out_demography.txt", "out_phenotypes.txt", "out_resources.txt", "out_technology.txt"]
for file in self.outputfiles:
assert file in os.listdir('simulations')
shutil.rmtree('simulations')
def test_elections_take_place_in_demes(self, pseudorandom):
pseudorandom(23)
self.pop = Pop(fit_fun='socialclass', inst='test/test')
self.pop.numberOfDemes = 2
self.pop.initialDemeSize = 500
self.pop.migrationRate = 0
self.pop.createAndPopulateDemes()
self.pop.clearDemeInfo()
self.pop.populationMutationMigration()
self.pop.updateDemeInfoPreProduction()
for deme in self.pop.demes:
assert deme.numberOfLeaders is not None
assert deme.numberOfLeaders / deme.demography == pytest.approx(
deme.meanPhenotypes[3], 1.4)
def test_function_runs_at_population_level(self):
fakepop = Pop(fit_fun='policingdemog', inst='test/test')
fakepop.numberOfDemes = 3
fakepop.initialDemeSize = 4
fakepop.createAndPopulateDemes()
fakepop.clearDemeInfo()
fakepop.populationMutationMigration()
fakepop.updateDemeInfoPreProduction()
fakepop.populationProduction()
fakepop.updateDemeInfoPostProduction()
try:
fakepop.populationReproduction()
except:
assert False, "not running"
def test_simulations_only_run_on_structured_populations(
self, clearOutputFiles):
self.population = Pop(inst='test/test')
setattr(self.population, "numberOfDemes", 1)
setattr(self.population, "numberOfGenerations", 4)
try:
self.population.runSimulation()
except ValueError as e:
assert str(
e
) == 'This program runs simulations on well-mixed populations only. "numberOfDemes" in initialisation.txt must be > 1', "Explain why the program fails!, not '{0}'".format(
e)
else:
assert False, "You cannot let people run simulations on well-mixed populations (only {0} deme)!".format(
self.population.numberOfDemes)
clearOutputFiles('test/test/')
def test_policing_function_in_population_reproduction(self):
self.fakepop = Pop(inst='test/test', fit_fun='policing')
self.fakepop.numberOfDemes = 3
self.fakepop.initialDemeSize = 3
self.fakepop.createAndPopulateDemes()
self.fakepop.clearDemeInfo()
self.fakepop.populationMutationMigration()
self.fakepop.updateDemeInfoPreProduction()
self.fakepop.populationProduction()
self.fakepop.updateDemeInfoPostProduction()
try:
self.fakepop.populationReproduction()
except Exception as e:
assert False, "something went wrong, raised {0}: {1}".format(
e.__class__.__name__, str(e))
def test_consensus_is_aggregate_of_opinions(self):
self.pop = Pop(inst='test/test')
self.pop.fit_fun = 'debate'
self.pop.initialPhenotypes = [0.1, 0.2, 0.3, 0.4]
self.pop.numberOfDemes = 3
self.pop.initialDemeSize = 2
self.pop.mutationRate = 0
self.pop.migrationRate = 0
self.pop.createAndPopulateDemes()
self.pop.clearDemeInfo()
self.pop.populationMutationMigration()
self.pop.updateDemeInfoPreProduction()
for deme in self.pop.demes:
assert deme.politicsValues[
"consensus"] == 0.3, "wrong consensus value"
def test_identify_deme_neighbours(self):
self.fakepop = Pop(inst='test/test')
self.nd = self.fakepop.numberOfDemes
for deme in range(self.nd):
newDemeInstance = Dem()
newDemeInstance.id = deme
assert deme in range(self.nd)
newDemeInstance.neighbours = self.fakepop.identifyNeighbours(
self.nd, deme)
assert deme not in newDemeInstance.neighbours, "Deme {0} counts itself as a neighbour".format(
deme)
assert all(
x in range(self.nd) for x in newDemeInstance.neighbours
), "Neighbour(s) of deme {0} are missing: takes into account {1} out of its {2} neighbours".format(
deme, newDemeInstance.neighbours, self.nd - 1)
gc.collect()
