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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};
#[test]
fn can_create_labeled_counter_metric() {
let (glean, _t) = new_glean(None);
let labeled = LabeledCounter::new(
CommonMetricData {
name: "labeled_metric".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
Some(vec!["label1".into()]),
);
let metric = labeled.get("label1");
metric.add_sync(&glean, 1);
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
assert_eq!(
json!({
"labeled_counter": {
"telemetry.labeled_metric": { "label1": 1 }
}
}),
snapshot
);
}
#[test]
fn can_create_labeled_string_metric() {
let (glean, _t) = new_glean(None);
let labeled = LabeledString::new(
CommonMetricData {
name: "labeled_metric".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
Some(vec!["label1".into()]),
);
let metric = labeled.get("label1");
metric.set_sync(&glean, "text");
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
assert_eq!(
json!({
"labeled_string": {
"telemetry.labeled_metric": { "label1": "text" }
}
}),
snapshot
);
}
#[test]
fn can_create_labeled_bool_metric() {
let (glean, _t) = new_glean(None);
let labeled = LabeledBoolean::new(
CommonMetricData {
name: "labeled_metric".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
Some(vec!["label1".into()]),
);
let metric = labeled.get("label1");
metric.set_sync(&glean, true);
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
assert_eq!(
json!({
"labeled_boolean": {
"telemetry.labeled_metric": { "label1": true }
}
}),
snapshot
);
}
#[test]
fn can_use_multiple_labels() {
let (glean, _t) = new_glean(None);
let labeled = LabeledCounter::new(
CommonMetricData {
name: "labeled_metric".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
None,
);
let metric = labeled.get("label1");
metric.add_sync(&glean, 1);
let metric = labeled.get("label2");
metric.add_sync(&glean, 2);
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
assert_eq!(
json!({
"labeled_counter": {
"telemetry.labeled_metric": {
"label1": 1,
"label2": 2,
}
}
}),
snapshot
);
}
#[test]
fn can_record_error_for_submetric() {
let (glean, _t) = new_glean(None);
let labeled = LabeledString::new(
CommonMetricData {
name: "labeled_metric".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
Some(vec!["label1".into()]),
);
let metric = labeled.get("label1");
metric.set_sync(&glean, "01234567890".repeat(20));
// Make sure that the errors have been recorded
assert_eq!(
Ok(1),
test_get_num_recorded_errors(&glean, metric.meta(), ErrorType::InvalidOverflow)
);
}
#[test]
fn labels_are_checked_against_static_list() {
let (glean, _t) = new_glean(None);
let labeled = LabeledCounter::new(
CommonMetricData {
name: "labeled_metric".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
Some(vec!["label1".into(), "label2".into()]),
);
let metric = labeled.get("label1");
metric.add_sync(&glean, 1);
let metric = labeled.get("label2");
metric.add_sync(&glean, 2);
// All non-registed labels get mapped to the `other` label
let metric = labeled.get("label3");
metric.add_sync(&glean, 3);
let metric = labeled.get("label4");
metric.add_sync(&glean, 4);
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
assert_eq!(
json!({
"labeled_counter": {
"telemetry.labeled_metric": {
"label1": 1,
"label2": 2,
"__other__": 7,
}
}
}),
snapshot
);
}
#[test]
fn dynamic_labels_too_long() {
let (glean, _t) = new_glean(None);
let labeled = LabeledCounter::new(
CommonMetricData {
name: "labeled_metric".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
None,
);
let metric = labeled.get("1".repeat(72));
metric.add_sync(&glean, 1);
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
assert_eq!(
json!({
"labeled_counter": {
"glean.error.invalid_label": { "telemetry.labeled_metric": 1 },
"telemetry.labeled_metric": {
"__other__": 1,
}
}
}),
snapshot
);
}
#[test]
fn dynamic_labels_regex_mismatch() {
let (glean, _t) = new_glean(None);
let labeled = LabeledCounter::new(
CommonMetricData {
name: "labeled_metric".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
None,
);
let labels_not_validating = vec!["non-ASCII�"];
let num_non_validating = labels_not_validating.len();
for label in &labels_not_validating {
labeled.get(label).add_sync(&glean, 1);
}
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
assert_eq!(
json!({
"labeled_counter": {
"glean.error.invalid_label": { "telemetry.labeled_metric": num_non_validating },
"telemetry.labeled_metric": {
"__other__": num_non_validating,
}
}
}),
snapshot
);
}
#[test]
fn dynamic_labels_regex_allowed() {
let (glean, _t) = new_glean(None);
let labeled = LabeledCounter::new(
CommonMetricData {
name: "labeled_metric".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
None,
);
let labels_validating = vec![
"this.is.fine",
"this_is_fine_too",
"this.is_still_fine",
"thisisfine",
"_.is_fine",
"this.is-fine",
"this-is-fine",
];
for label in &labels_validating {
labeled.get(label).add_sync(&glean, 1);
}
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
assert_eq!(
json!({
"labeled_counter": {
"telemetry.labeled_metric": {
"this.is.fine": 1,
"this_is_fine_too": 1,
"this.is_still_fine": 1,
"thisisfine": 1,
"_.is_fine": 1,
"this.is-fine": 1,
"this-is-fine": 1
}
}
}),
snapshot
);
}
#[test]
fn seen_labels_get_reloaded_from_disk() {
let (mut tempdir, _) = tempdir();
let (glean, dir) = new_glean(Some(tempdir));
tempdir = dir;
let labeled = LabeledCounter::new(
CommonMetricData {
name: "labeled_metric".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
None,
);
// Store some data into labeled metrics
{
// Set the maximum number of labels
for i in 1..=16 {
let label = format!("label{i}");
labeled.get(label).add_sync(&glean, i);
}
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", false)
.unwrap();
// Check that the data is there
for i in 1..=16 {
let label = format!("label{i}");
assert_eq!(
i,
snapshot["labeled_counter"]["telemetry.labeled_metric"][&label]
);
}
drop(glean);
}
// Force a reload
{
let (glean, _t) = new_glean(Some(tempdir));
// Try to store another label
labeled.get("new_label").add_sync(&glean, 40);
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", false)
.unwrap();
// Check that the old data is still there
for i in 1..=16 {
let label = format!("label{i}");
assert_eq!(
i,
snapshot["labeled_counter"]["telemetry.labeled_metric"][&label]
);
}
// The new label lands in the __other__ bucket, due to too many labels
assert_eq!(
40,
snapshot["labeled_counter"]["telemetry.labeled_metric"]["__other__"]
);
}
}
#[test]
fn caching_metrics_with_dynamic_labels() {
let (glean, _t) = new_glean(None);
let labeled = LabeledCounter::new(
CommonMetricData {
name: "cached_labels".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
None,
);
// Create multiple metric instances and cache them for later use.
let metrics = (1..=20)
.map(|i| {
let label = format!("label{i}");
labeled.get(label)
})
.collect::<Vec<_>>();
// Only now use them.
for metric in metrics {
metric.add_sync(&glean, 1);
}
// The maximum number of labels we store is 16.
// So we should have put 4 metrics in the __other__ bucket.
let other = labeled.get("__other__");
assert_eq!(Some(4), other.get_value(&glean, Some("store1")));
}
#[test]
fn caching_metrics_with_dynamic_labels_across_pings() {
let (glean, _t) = new_glean(None);
let labeled = LabeledCounter::new(
CommonMetricData {
name: "cached_labels2".into(),
category: "telemetry".into(),
send_in_pings: vec!["store1".into()],
disabled: false,
lifetime: Lifetime::Ping,
..Default::default()
},
None,
);
// Create multiple metric instances and cache them for later use.
let metrics = (1..=20)
.map(|i| {
let label = format!("label{i}");
labeled.get(label)
})
.collect::<Vec<_>>();
// Only now use them.
for metric in &metrics {
metric.add_sync(&glean, 1);
}
// The maximum number of labels we store is 16.
// So we should have put 4 metrics in the __other__ bucket.
let other = labeled.get("__other__");
assert_eq!(Some(4), other.get_value(&glean, Some("store1")));
// Snapshot (so we can inspect the JSON)
// and clear out storage (the same way submitting a ping would)
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
// We didn't send the 20th label
assert_eq!(
json!(null),
snapshot["labeled_counter"]["telemetry.cached_labels2"]["label20"]
);
// We now set the ones that ended up in `__other__` before.
// Note: indexing is zero-based,
// but we later check the names, so let's offset it by 1.
metrics[16].add_sync(&glean, 17);
metrics[17].add_sync(&glean, 18);
metrics[18].add_sync(&glean, 19);
metrics[19].add_sync(&glean, 20);
assert_eq!(Some(17), metrics[16].get_value(&glean, Some("store1")));
assert_eq!(Some(18), metrics[17].get_value(&glean, Some("store1")));
assert_eq!(Some(19), metrics[18].get_value(&glean, Some("store1")));
assert_eq!(Some(20), metrics[19].get_value(&glean, Some("store1")));
assert_eq!(None, other.get_value(&glean, Some("store1")));
let snapshot = StorageManager
.snapshot_as_json(glean.storage(), "store1", true)
.unwrap();
let cached_labels = &snapshot["labeled_counter"]["telemetry.cached_labels2"];
assert_eq!(json!(17), cached_labels["label17"]);
assert_eq!(json!(18), cached_labels["label18"]);
assert_eq!(json!(19), cached_labels["label19"]);
assert_eq!(json!(20), cached_labels["label20"]);
assert_eq!(json!(null), cached_labels["__other__"]);
}