def test_put_metric_uses_None_unit_if_not_provided():
# arrange
context = MetricsContext()
metric_key = fake.word()
metric_value = fake.random.random()
# act
context.put_metric(metric_key, metric_value)
# assert
metric = context.metrics[metric_key]
assert metric.unit == "None"
def test_put_metric_adds_metrics():
# arrange
context = MetricsContext()
metric_key = fake.word()
metric_value = fake.random.random()
metric_unit = fake.word()
# act
context.put_metric(metric_key, metric_value, metric_unit)
# assert
metric = context.metrics[metric_key]
assert metric.unit == metric_unit
assert metric.values == [metric_value]