def test_stack_dict_arg():
stack = ContextStack()
with stack({'a': 1}):
assert list(stack.items()) == [('a', 1)]
with stack({'a': 1}, b=2):
# order not preserved, as kwargs
assert dict(stack) == {'a': 1, 'b': 2}
def test_stack_dict_arg(name):
stack = ContextStack(name)
with stack({'a': 1}):
assert list(stack.items()) == [('a', 1)]
with stack({'a': 1}, b=2):
# order not preserved, as kwargs
assert dict(stack) == {'a': 1, 'b': 2}
def test_context_clear_resets_stack(name):
stack = ContextStack(name)
stack.push(a=1)
assert stack._stack == [{'a': 1}]
assert stack.flat == {'a': 1}
clear()
assert stack._stack == []
assert stack.flat == {}
def test_context_clear_resets_stack(name):
stack = ContextStack(name)
stack.push(a=1)
assert stack._stack == [{'a': 1}]
assert stack.flat == {'a': 1}
clear()
assert stack._stack == []
assert stack.flat == {}
def test_does_not_use_or_modify_dict():
stack = ContextStack()
d = {'a': 1}
stack.push(d, b=2)
assert stack['a'] == 1
assert stack['b'] == 2
assert d == {'a': 1}
d['a'] = 2
assert stack['a'] == 1
def test_does_not_use_or_modify_dict(name):
stack = ContextStack(name)
d = {'a': 1}
stack.push(d, b=2)
assert stack['a'] == 1
assert stack['b'] == 2
assert d == {'a': 1}
d['a'] = 2
assert stack['a'] == 1
def test_stack_clear(name):
stack = ContextStack(name)
stack.push(a=1)
stack.push(b=2)
stack.push(c=3)
assert list(stack.items()) == [('c', 3), ('b', 2), ('a', 1)]
stack.clear()
assert list(stack.items()) == []
def test_stack_clear(name):
stack = ContextStack(name)
stack.push(a=1)
stack.push(b=2)
stack.push(c=3)
assert list(stack.items()) == [('c', 3), ('b', 2), ('a', 1)]
stack.clear()
assert list(stack.items()) == []
def test_name_doesnt_clash(name):
stack1 = ContextStack(name)
stack2 = ContextStack(name + 'xxx')
stack1.push(a=1)
stack2.push(a=2)
assert stack1['a'] == 1
assert stack2['a'] == 2
def test_stack_unwind():
stack = ContextStack()
stack.push(a=1)
assert stack['a'] == 1
level = stack.push(a=2)
assert stack['a'] == 2
stack.push(a=3)
stack.push(a=4)
assert stack['a'] == 4
stack.unwind(level)
assert stack['a'] == 1
def test_stack_context_manager():
stack = ContextStack()
stack.push(a=1)
assert list(stack.items()) == [('a', 1)]
with stack(b=2):
assert list(stack.items()) == [('b', 2), ('a', 1)]
assert list(stack.items()) == [('a', 1)]
def test_stack_unwind(name):
stack = ContextStack(name)
stack.push(a=1)
assert stack['a'] == 1
level = stack.push(a=2)
assert stack['a'] == 2
stack.push(a=3)
stack.push(a=4)
assert stack['a'] == 4
stack.unwind(level)
assert stack['a'] == 1
def test_name_doesnt_clash(name):
stack1 = ContextStack(name)
stack2 = ContextStack(name + 'xxx')
stack1.push(a=1)
stack2.push(a=2)
assert stack1['a'] == 1
assert stack2['a'] == 2
def test_concurrent(name):
stack = ContextStack(name)
result = []
e1 = threading.Event()
e2 = threading.Event()
def worker():
stack.push(a=2)
result.append(stack.flat)
e1.set()
e2.wait()
stack.clear()
result.append(stack.flat)
e1.set()
t = threading.Thread(target=worker)
stack.push(a=1)
t.start()
e1.wait()
e1.clear()
# we should now have 2 different thread locals
assert stack.flat == {'a': 1}
assert result[-1] == {'a': 2}
e2.set()
e1.wait()
assert stack.flat == {'a': 1}
assert result[-1] == {}
t.join()
def test_concurrent(name):
stack = ContextStack(name)
result = []
e1 = threading.Event()
e2 = threading.Event()
def worker():
stack.push(a=2)
result.append(stack.flat)
e1.set()
e2.wait()
stack.clear()
result.append(stack.flat)
e1.set()
t = threading.Thread(target=worker)
stack.push(a=1)
t.start()
e1.wait()
e1.clear()
# we should now have 2 different thread locals
assert stack.flat == {'a': 1}
assert result[-1] == {'a': 2}
e2.set()
e1.wait()
assert stack.flat == {'a': 1}
assert result[-1] == {}
t.join()
def test_stack_context(name):
stack = ContextStack(name)
stack.push(a=1)
assert list(stack.items()) == [('a', 1)]
with stack(b=2):
assert list(stack.items()) == [('b', 2), ('a', 1)]
assert list(stack.items()) == [('a', 1)]
def reset_logging():
"""Reset logging config"""
# avoid unclosed file resource warning
for handler in logging.getLogger().handlers:
if getattr(handler, '_debug_handler', False):
handler.stream.close()
logging.getLogger().handlers = []
NOISY_LOGS = {
'requests': logging.WARNING,
}
logging_context = ContextStack('logging')
# backwards compat alias
set_logging_context = logging_context.push
extra_logging = logging_context
def add_talisker_handler(level, handler, formatter=None):
if formatter is None:
formatter = StructuredFormatter()
handler.setFormatter(formatter)
handler.setLevel(level)
handler._talisker_handler = True
logging.getLogger().addHandler(handler)
def test_stack_basic():
stack = ContextStack()
stack.push(a=1)
assert stack['a'] == 1
assert list(stack.items()) == [('a', 1)]
stack.push(b=2)
assert stack['b'] == 2
assert list(stack.items()) == [('b', 2), ('a', 1)]
stack.push(a=3)
assert stack['a'] == 3
assert list(stack.items()) == [('a', 3), ('b', 2)]
stack.pop()
assert stack['a'] == 1
assert list(stack.items()) == [('b', 2), ('a', 1)]
stack.pop()
assert stack['a'] == 1
assert list(stack.items()) == [('a', 1)]
stack.pop()
with pytest.raises(KeyError):
stack['a']
assert list(stack.items()) == []
def test_stack_basic(name):
stack = ContextStack(name)
stack.push(a=1)
assert stack['a'] == 1
assert list(stack.items()) == [('a', 1)]
stack.push(b=2)
assert stack['b'] == 2
assert list(stack.items()) == [('b', 2), ('a', 1)]
stack.push(a=3)
assert stack['a'] == 3
assert list(stack.items()) == [('a', 3), ('b', 2)]
stack.pop()
assert stack['a'] == 1
assert list(stack.items()) == [('b', 2), ('a', 1)]
stack.pop()
assert stack['a'] == 1
assert list(stack.items()) == [('a', 1)]
stack.pop()
with pytest.raises(KeyError):
stack['a']
assert list(stack.items()) == []
