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test_utils.py
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test_utils.py
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import yaml
from models import Server
from utils import (
get_healthy_server,
healthcheck,
least_connections,
process_firewall_rules_flag,
process_rules,
process_rewrite_rules,
transform_backends_from_config,
)
def test_transform_backends_from_config():
input = yaml.safe_load('''
hosts:
- host: www.mango.com
servers:
- localhost:8081
- localhost:8082
- host: www.apple.com
servers:
- localhost:9081
- localhost:9082
paths:
- path: /mango
servers:
- localhost:8081
- localhost:8082
- path: /apple
servers:
- localhost:9081
- localhost:9082
''')
output = transform_backends_from_config(input)
assert list(output.keys()) == ['www.mango.com', 'www.apple.com', '/mango', '/apple']
assert output['www.mango.com'][0] == Server('localhost:8081')
assert output['www.mango.com'][1] == Server('localhost:8082')
assert output['www.apple.com'][0] == Server('localhost:9081')
assert output['www.apple.com'][1] == Server('localhost:9082')
assert output['/mango'][0] == Server('localhost:8081')
assert output['/mango'][1] == Server('localhost:8082')
assert output['/apple'][0] == Server('localhost:9081')
assert output['/apple'][1] == Server('localhost:9082')
def test_get_healthy_server():
healthy_server = Server('localhost:8081')
unhealthy_server = Server('localhost:8082')
unhealthy_server.healthy = False
register = {'www.mango.com': [healthy_server, unhealthy_server],
'www.apple.com': [healthy_server, healthy_server],
'www.orange.com': [unhealthy_server, unhealthy_server],
'/mango': [healthy_server, unhealthy_server],
'/apple': [unhealthy_server, unhealthy_server]}
assert get_healthy_server('www.mango.com', register) == healthy_server
assert get_healthy_server('www.apple.com', register) == healthy_server
assert get_healthy_server('www.orange.com', register) is None
assert get_healthy_server('/mango', register) == healthy_server
assert get_healthy_server('/apple', register) is None
def test_healthcheck():
config = yaml.safe_load('''
hosts:
- host: www.mango.com
servers:
- localhost:8081
- localhost:8888
- host: www.apple.com
servers:
- localhost:9081
- localhost:4444
''')
register = healthcheck(transform_backends_from_config(config))
assert register['www.apple.com'][0].healthy
assert not register['www.apple.com'][1].healthy
assert register['www.mango.com'][0].healthy
assert not register['www.mango.com'][1].healthy
def test_process_rules():
input = yaml.safe_load('''
hosts:
- host: www.mango.com
header_rules:
add:
MyCustomHeader: Test
remove:
Host: www.mango.com
servers:
- localhost:8081
- localhost:8082
- host: www.apple.com
servers:
- localhost:9081
- localhost:9082
paths:
- path: /mango
servers:
- localhost:8081
- localhost:8082
- path: /apple
servers:
- localhost:9081
- localhost:9082
''')
headers = {'Host': 'www.mango.com'}
results = process_rules(input, 'www.mango.com', headers, 'header')
assert results == {'MyCustomHeader': 'Test'}
def test_process_param_rules():
input = yaml.safe_load('''
hosts:
- host: www.mango.com
param_rules:
add:
MyCustomParam: Test
remove:
RemoveMe: Remove
servers:
- localhost:8081
- localhost:8082
- host: www.apple.com
servers:
- localhost:9081
- localhost:9082
paths:
- path: /mango
servers:
- localhost:8081
- localhost:8082
- path: /apple
servers:
- localhost:9081
- localhost:9082
''')
params = {'RemoveMe': 'Remove'}
results = process_rules(input, 'www.mango.com', params, 'param')
assert results == {'MyCustomParam': 'Test'}
def test_process_rewrite_rules():
input = yaml.safe_load('''
hosts:
- host: www.mango.com
rewrite_rules:
replace:
v1: v2
servers:
- localhost:8081
- localhost:8082
- host: www.apple.com
servers:
- localhost:9081
- localhost:9082
paths:
- path: /mango
servers:
- localhost:8081
- localhost:8082
- path: /apple
servers:
- localhost:9081
- localhost:9082
''')
path = 'localhost:8081/v1'
results = process_rewrite_rules(input, 'www.mango.com', path)
assert results == 'localhost:8081/v2'
def test_least_connections_empty_list():
result = least_connections([])
assert result == None
def test_least_connections():
backend1 = Server('localhost:8081')
backend1.open_connections = 10
backend2 = Server('localhost:8082')
backend2.open_connections = 5
backend3 = Server('localhost:8083')
backend3.open_connections = 2
servers = [backend1, backend2, backend3]
result = least_connections(servers)
assert result == backend3
def test_process_firewall_rules_reject():
input = yaml.safe_load('''
hosts:
- host: www.mango.com
firewall_rules:
ip_reject:
- 10.192.0.1
- 10.192.0.2
servers:
- localhost:8081
- localhost:8082
- host: www.apple.com
servers:
- localhost:9081
- localhost:9082
paths:
- path: /mango
servers:
- localhost:8081
- localhost:8082
- path: /apple
servers:
- localhost:9081
- localhost:9082
''')
results = process_firewall_rules_flag(input, 'www.mango.com', '10.192.0.1')
assert not results
def test_process_firewall_rules_accept():
input = yaml.safe_load('''
hosts:
- host: www.mango.com
firewall_rules:
ip_reject:
- 10.192.0.1
- 10.192.0.2
servers:
- localhost:8081
- localhost:8082
- host: www.apple.com
servers:
- localhost:9081
- localhost:9082
paths:
- path: /mango
servers:
- localhost:8081
- localhost:8082
- path: /apple
servers:
- localhost:9081
- localhost:9082
''')
results = process_firewall_rules_flag(input, 'www.mango.com', '55.55.55.55')
assert results
def test_process_firewall_rules_path_reject():
input = yaml.safe_load('''
hosts:
- host: www.mango.com
firewall_rules:
path_reject:
- /messages
- /apps
servers:
- localhost:8081
- localhost:8082
- host: www.apple.com
servers:
- localhost:9081
- localhost:9082
paths:
- path: /mango
servers:
- localhost:8081
- localhost:8082
- path: /apple
servers:
- localhost:9081
- localhost:9082
''')
results = process_firewall_rules_flag(input, 'www.mango.com', path='/apps')
assert results == False
def test_process_firewall_rules_path_accept():
input = yaml.safe_load('''
hosts:
- host: www.mango.com
firewall_rules:
path_reject:
- /messages
- /apps
servers:
- localhost:8081
- localhost:8082
- host: www.apple.com
servers:
- localhost:9081
- localhost:9082
paths:
- path: /mango
servers:
- localhost:8081
- localhost:8082
- path: /apple
servers:
- localhost:9081
- localhost:9082
''')
results = process_firewall_rules_flag(input, 'www.mango.com', path='/pictures')
assert results == True