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-rw-r--r--dom/heapsnapshot/tests/unit/test_countToBucketBreakdown_01.js37
1 files changed, 37 insertions, 0 deletions
diff --git a/dom/heapsnapshot/tests/unit/test_countToBucketBreakdown_01.js b/dom/heapsnapshot/tests/unit/test_countToBucketBreakdown_01.js
new file mode 100644
index 000000000..e89048c33
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+++ b/dom/heapsnapshot/tests/unit/test_countToBucketBreakdown_01.js
@@ -0,0 +1,37 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+// Test that we can turn a breakdown with { by: "count" } leaves into a
+// breakdown with { by: "bucket" } leaves.
+
+const COUNT = { by: "count", count: true, bytes: true };
+const BUCKET = { by: "bucket" };
+
+const BREAKDOWN = {
+ by: "coarseType",
+ objects: { by: "objectClass", then: COUNT, other: COUNT },
+ strings: COUNT,
+ scripts: {
+ by: "filename",
+ then: { by: "internalType", then: COUNT },
+ noFilename: { by: "internalType", then: COUNT },
+ },
+ other: { by: "internalType", then: COUNT },
+};
+
+const EXPECTED = {
+ by: "coarseType",
+ objects: { by: "objectClass", then: BUCKET, other: BUCKET },
+ strings: BUCKET,
+ scripts: {
+ by: "filename",
+ then: { by: "internalType", then: BUCKET },
+ noFilename: { by: "internalType", then: BUCKET },
+ },
+ other: { by: "internalType", then: BUCKET },
+};
+
+function run_test() {
+ assertCountToBucketBreakdown(BREAKDOWN, EXPECTED);
+}