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Diffstat (limited to '')
-rw-r--r-- | devtools/shared/heapsnapshot/tests/xpcshell/test_HeapSnapshot_takeCensus_12.js | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/devtools/shared/heapsnapshot/tests/xpcshell/test_HeapSnapshot_takeCensus_12.js b/devtools/shared/heapsnapshot/tests/xpcshell/test_HeapSnapshot_takeCensus_12.js new file mode 100644 index 0000000000..f3a72102b0 --- /dev/null +++ b/devtools/shared/heapsnapshot/tests/xpcshell/test_HeapSnapshot_takeCensus_12.js @@ -0,0 +1,60 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ +"use strict"; + +// Test that when we take a census and get a bucket list of ids that matched the +// given category, that the returned ids are all in the snapshot and their +// reported category. + +function run_test() { + const g = newGlobal(); + const dbg = new Debugger(g); + + const path = saveNewHeapSnapshot({ debugger: dbg }); + const snapshot = readHeapSnapshot(path); + + const bucket = { by: "bucket" }; + const count = { by: "count", count: true, bytes: false }; + const objectClassCount = { by: "objectClass", then: count, other: count }; + + const byClassName = snapshot.takeCensus({ + breakdown: { + by: "objectClass", + then: bucket, + other: bucket, + }, + }); + + const byClassNameCount = snapshot.takeCensus({ + breakdown: objectClassCount, + }); + + const keys = new Set(Object.keys(byClassName)); + equal( + keys.size, + Object.keys(byClassNameCount).length, + "Should have the same number of keys." + ); + for (const k of Object.keys(byClassNameCount)) { + ok(keys.has(k), "Should not have any unexpected class names"); + } + + for (const key of Object.keys(byClassName)) { + equal( + byClassNameCount[key].count, + byClassName[key].length, + "Length of the bucket and count should be equal" + ); + + for (const id of byClassName[key]) { + const desc = snapshot.describeNode(objectClassCount, id); + equal( + desc[key].count, + 1, + "Describing the bucketed node confirms that it belongs to the category" + ); + } + } + + do_test_finished(); +} |