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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
mod common;
use crate::common::*;
use serde_json::json;
use glean_core::metrics::*;
use glean_core::storage::StorageManager;
use glean_core::{test_get_num_recorded_errors, ErrorType};
use glean_core::{CommonMetricData, Lifetime};
// Tests ported from glean-ac
#[test]
fn serializer_should_correctly_serialize_memory_distribution() {
let (mut tempdir, _) = tempdir();
let memory_unit = MemoryUnit::Kilobyte;
let kb = 1024;
{
let (glean, dir) = new_glean(Some(tempdir));
tempdir = dir;
let metric = MemoryDistributionMetric::new(
CommonMetricData {
name: "distribution".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
memory_unit,
);
metric.accumulate_sync(&glean, 100_000);
let snapshot = metric
.get_value(&glean, "store1")
.expect("Value should be stored");
assert_eq!(snapshot.sum, 100_000 * kb);
}
// Make a new Glean instance here, which should force reloading of the data from disk
// so we can ensure it persisted, because it has User lifetime
{
let (glean, _t) = new_glean(Some(tempdir));
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
// We check the exact format to catch changes to the serialization.
let expected = json!({
"sum": 100_000 * kb,
"values": {
"99108124": 1,
"103496016": 0,
}
});
assert_eq!(
expected,
snapshot["memory_distribution"]["telemetry.distribution"]
);
}
}
#[test]
fn set_value_properly_sets_the_value_in_all_stores() {
let (glean, _t) = new_glean(None);
let store_names: Vec<String> = vec!["store1".into(), "store2".into()];
let metric = MemoryDistributionMetric::new(
CommonMetricData {
name: "distribution".into(),
category: "telemetry".into(),
send_in_pings: store_names.clone(),
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
MemoryUnit::Byte,
);
metric.accumulate_sync(&glean, 100_000);
// We check the exact format to catch changes to the serialization.
let expected = json!({
"sum": 100_000,
"values": {
"96785": 1,
"101070": 0,
}
});
for store_name in store_names {
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), &store_name, true)
.unwrap();
assert_eq!(
expected,
snapshot["memory_distribution"]["telemetry.distribution"]
);
}
}
// SKIPPED from glean-ac: memory distributions must not accumulate negative values
// This test doesn't apply to Rust, because we're using unsigned integers.
#[test]
fn the_accumulate_samples_api_correctly_stores_memory_values() {
let (glean, _t) = new_glean(None);
let metric = MemoryDistributionMetric::new(
CommonMetricData {
name: "distribution".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
MemoryUnit::Kilobyte,
);
// Accumulate the samples. We intentionally do not report
// negative values to not trigger error reporting.
metric.accumulate_samples_sync(&glean, [1, 2, 3].to_vec());
let snapshot = metric
.get_value(&glean, "store1")
.expect("Value should be stored");
let kb = 1024;
// Check that we got the right sum of samples.
assert_eq!(snapshot.sum, 6 * kb);
// We should get a sample in 3 buckets.
// These numbers are a bit magic, but they correspond to
// `hist.sample_to_bucket_minimum(i * kb)` for `i = 1..=3`.
assert_eq!(1, snapshot.values[&1023]);
assert_eq!(1, snapshot.values[&2047]);
assert_eq!(1, snapshot.values[&3024]);
// No errors should be reported.
assert!(test_get_num_recorded_errors(&glean, metric.meta(), ErrorType::InvalidValue).is_err());
}
#[test]
fn the_accumulate_samples_api_correctly_handles_negative_values() {
let (glean, _t) = new_glean(None);
let metric = MemoryDistributionMetric::new(
CommonMetricData {
name: "distribution".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
MemoryUnit::Kilobyte,
);
// Accumulate the samples.
metric.accumulate_samples_sync(&glean, [-1, 1, 2, 3].to_vec());
let snapshot = metric
.get_value(&glean, "store1")
.expect("Value should be stored");
let kb = 1024;
// Check that we got the right sum of samples.
assert_eq!(snapshot.sum, 6 * kb);
// We should get a sample in 3 buckets.
// These numbers are a bit magic, but they correspond to
// `hist.sample_to_bucket_minimum(i * kb)` for `i = 1..=3`.
assert_eq!(1, snapshot.values[&1023]);
assert_eq!(1, snapshot.values[&2047]);
assert_eq!(1, snapshot.values[&3024]);
// 1 error should be reported.
assert_eq!(
Ok(1),
test_get_num_recorded_errors(&glean, metric.meta(), ErrorType::InvalidValue)
);
}