def test_get_value_throws_value_error_if_nothing_is_stored():
# Define a quantity metric, which will be stored in "store1"
quantity_metric = metrics.QuantityMetricType(
disabled=True,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="quantity_metric",
send_in_pings=["store1"],
)
with pytest.raises(ValueError):
quantity_metric.test_get_value()
def test_disabled_quantities_must_not_record_data():
# Define a quantity metric, which will be stored in "store1"
quantity_metric = metrics.QuantityMetricType(
disabled=True,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="quantity_metric",
send_in_pings=["store1"],
)
# Attempt to increment the quantity
quantity_metric.set(1)
# Check that nothing was recorded
assert quantity_metric.test_has_value() is False
def test_api_saves_to_secondary_pings():
# Define a quantity metric, which will be stored in "store1" and "store2"
quantity_metric = metrics.QuantityMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="quantity_metric",
send_in_pings=["store1", "store2"],
)
quantity_metric.set(1)
# Check that the metric was properly recorded on the second ping
assert quantity_metric.test_has_value("store2")
assert 1 == quantity_metric.test_get_value("store2")
quantity_metric.set(10)
# Check that the metric was properly overwritten on the second ping
assert quantity_metric.test_has_value("store2")
assert 10 == quantity_metric.test_get_value("store2")
def test_negative_values_are_not_counted():
# Define a quantity metric, which will be stored in "store1"
quantity_metric = metrics.QuantityMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="quantity_metric",
send_in_pings=["store1"],
)
quantity_metric.set(1)
# Check that the metric was properly recorded
assert quantity_metric.test_has_value("store1")
assert 1 == quantity_metric.test_get_value("store1")
quantity_metric.set(-10)
# Check that the quantity was NOT recorded
assert quantity_metric.test_has_value("store1")
assert 1 == quantity_metric.test_get_value("store1")
assert 1 == quantity_metric.test_get_num_recorded_errors(
testing.ErrorType.INVALID_VALUE)
def test_the_api_saves_to_its_storage_engine():
# Define a quantity metric, which will be stored in "store1"
quantity_metric = metrics.QuantityMetricType(
disabled=False,
category="telemetry",
lifetime=Lifetime.APPLICATION,
name="quantity_metric",
send_in_pings=["store1"],
)
assert quantity_metric.test_has_value() is False
quantity_metric.set(1)
# Check that the metric was properly recorded
assert quantity_metric.test_has_value() is True
assert 1 == quantity_metric.test_get_value()
quantity_metric.set(10)
# Check that the metric was properly overwritten
assert quantity_metric.test_has_value() is True
assert 10 == quantity_metric.test_get_value()