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-rw-r--r--dom/heapsnapshot/tests/unit/test_getCensusIndividuals_01.js60
1 files changed, 60 insertions, 0 deletions
diff --git a/dom/heapsnapshot/tests/unit/test_getCensusIndividuals_01.js b/dom/heapsnapshot/tests/unit/test_getCensusIndividuals_01.js
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+++ b/dom/heapsnapshot/tests/unit/test_getCensusIndividuals_01.js
@@ -0,0 +1,60 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+// Test basic functionality of `CensusUtils.getCensusIndividuals`.
+
+function run_test() {
+ const stack1 = saveStack(1);
+ const stack2 = saveStack(1);
+ const stack3 = saveStack(1);
+
+ const COUNT = { by: "count", count: true, bytes: true };
+ const INTERNAL_TYPE = { by: "internalType", then: COUNT };
+
+ const BREAKDOWN = {
+ by: "allocationStack",
+ then: INTERNAL_TYPE,
+ noStack: INTERNAL_TYPE,
+ };
+
+ const MOCK_SNAPSHOT = {
+ takeCensus: ({ breakdown }) => {
+ assertStructurallyEquivalent(
+ breakdown,
+ CensusUtils.countToBucketBreakdown(BREAKDOWN));
+
+ // DFS Index
+ return new Map([ // 0
+ [stack1, { // 1
+ JSObject: [101, 102, 103], // 2
+ JSString: [111, 112, 113], // 3
+ }],
+ [stack2, { // 4
+ JSObject: [201, 202, 203], // 5
+ JSString: [211, 212, 213], // 6
+ }],
+ [stack3, { // 7
+ JSObject: [301, 302, 303], // 8
+ JSString: [311, 312, 313], // 9
+ }],
+ ["noStack", { // 10
+ JSObject: [401, 402, 403], // 11
+ JSString: [411, 412, 413], // 12
+ }],
+ ]);
+ }
+ };
+
+ const INDICES = new Set([3, 5, 9]);
+
+ const EXPECTED = new Set([111, 112, 113,
+ 201, 202, 203,
+ 311, 312, 313]);
+
+ const actual = new Set(CensusUtils.getCensusIndividuals(INDICES,
+ BREAKDOWN,
+ MOCK_SNAPSHOT));
+
+ assertStructurallyEquivalent(EXPECTED, actual);
+}