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Bug 1157282 - Add test coverage for telemetry histogram recording. r=gfritzsche

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This commit is contained in:
Alessio Placitelli 2015-04-27 06:36:00 -04:00
parent 7a0540982b
commit 90794c640d
1 changed files with 106 additions and 0 deletions
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106
toolkit/components/telemetry/tests/unit/test_nsITelemetry.js
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@ -360,6 +360,60 @@ function test_privateMode() {
do_check_neq(uneval(orig), uneval(h.snapshot()));
}
// Check that telemetry records only when it is suppose to.
function test_histogramRecording() {
// Check that no histogram is recorded if both base and extended recording are off.
Telemetry.canRecordBase = false;
Telemetry.canRecordExtended = false;
let h = Telemetry.getHistogramById("TELEMETRY_TEST_RELEASE_OPTOUT");
h.clear();
let orig = h.snapshot();
h.add(1);
Assert.equal(orig.sum, h.snapshot().sum);
// Check that only base histograms are recorded.
Telemetry.canRecordBase = true;
h.add(1);
Assert.equal(orig.sum + 1, h.snapshot().sum,
"Histogram value should have incremented by 1 due to recording.");
// Extended histograms should not be recorded.
h = Telemetry.getHistogramById("TELEMETRY_TEST_RELEASE_OPTIN");
orig = h.snapshot();
h.add(1);
Assert.equal(orig.sum, h.snapshot().sum,
"Histograms should be equal after recording.");
// Runtime created histograms should not be recorded.
h = Telemetry.newHistogram("test::runtime_created_boolean", "never", Telemetry.HISTOGRAM_BOOLEAN);
orig = h.snapshot();
h.add(1);
Assert.equal(orig.sum, h.snapshot().sum,
"Histograms should be equal after recording.");
// Check that extended histograms are recorded when required.
Telemetry.canRecordExtended = true;
h.add(1);
Assert.equal(orig.sum + 1, h.snapshot().sum,
"Runtime histogram value should have incremented by 1 due to recording.");
h = Telemetry.getHistogramById("TELEMETRY_TEST_RELEASE_OPTIN");
orig = h.snapshot();
h.add(1);
Assert.equal(orig.sum + 1, h.snapshot().sum,
"Histogram value should have incremented by 1 due to recording.");
// Check that base histograms are still being recorded.
h = Telemetry.getHistogramById("TELEMETRY_TEST_RELEASE_OPTOUT");
h.clear();
orig = h.snapshot();
h.add(1);
Assert.equal(orig.sum + 1, h.snapshot().sum,
"Histogram value should have incremented by 1 due to recording.");
}
// Check that histograms that aren't flagged as needing extended stats
// don't record extended stats.
function test_extended_stats() {
@ -528,6 +582,56 @@ function test_keyed_flag_histogram()
Assert.deepEqual(h.snapshot(), {});
}
function test_keyed_histogram_recording() {
// Check that no histogram is recorded if both base and extended recording are off.
Telemetry.canRecordBase = false;
Telemetry.canRecordExtended = false;
const TEST_KEY = "record_foo";
let h = Telemetry.getKeyedHistogramById("TELEMETRY_TEST_KEYED_RELEASE_OPTOUT");
h.clear();
h.add(TEST_KEY, 1);
Assert.equal(h.snapshot(TEST_KEY).sum, 0);
// Check that only base histograms are recorded.
Telemetry.canRecordBase = true;
h.add(TEST_KEY, 1);
Assert.equal(h.snapshot(TEST_KEY).sum, 1,
"The keyed histogram should record the correct value.");
// Extended set keyed histograms should not be recorded.
h = Telemetry.getKeyedHistogramById("TELEMETRY_TEST_KEYED_RELEASE_OPTIN");
h.clear();
h.add(TEST_KEY, 1);
Assert.equal(h.snapshot(TEST_KEY).sum, 0,
"The keyed histograms should not record any data.");
// Runtime created histograms should not be recorded.
h = Telemetry.newKeyedHistogram("test::runtime_keyed_boolean", "never", Telemetry.HISTOGRAM_BOOLEAN);
h.add(TEST_KEY, 1);
Assert.equal(h.snapshot(TEST_KEY).sum, 0,
"The keyed histogram should not record any data.");
// Check that extended histograms are recorded when required.
Telemetry.canRecordExtended = true;
h.add(TEST_KEY, 1);
Assert.equal(h.snapshot(TEST_KEY).sum, 1,
"The runtime keyed histogram should record the correct value.");
h = Telemetry.getKeyedHistogramById("TELEMETRY_TEST_KEYED_RELEASE_OPTIN");
h.clear();
h.add(TEST_KEY, 1);
Assert.equal(h.snapshot(TEST_KEY).sum, 1,
"The keyed histogram should record the correct value.");
// Check that base histograms are still being recorded.
h = Telemetry.getKeyedHistogramById("TELEMETRY_TEST_KEYED_RELEASE_OPTOUT");
h.clear();
h.add(TEST_KEY, 1);
Assert.equal(h.snapshot(TEST_KEY).sum, 1);
}
function test_keyed_histogram() {
// Check that invalid names get rejected.
@ -554,6 +658,7 @@ function test_keyed_histogram() {
test_keyed_boolean_histogram();
test_keyed_count_histogram();
test_keyed_flag_histogram();
test_keyed_histogram_recording();
}
function test_datasets()
@ -770,6 +875,7 @@ function run_test()
test_histogramFrom();
test_getSlowSQL();
test_privateMode();
test_histogramRecording();
test_addons();
test_extended_stats();
test_expired_histogram();