1 files changed, 67 insertions, 0 deletions
diff --git a/devtools/shared/heapsnapshot/tests/xpcshell/test_census_filtering_03.js b/devtools/shared/heapsnapshot/tests/xpcshell/test_census_filtering_03.js
new file mode 100644
index 0000000000..dc144bac2e
--- /dev/null
+++ b/devtools/shared/heapsnapshot/tests/xpcshell/test_census_filtering_03.js
@@ -0,0 +1,67 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+// Test filtering with no matches.
+
+function run_test() {
+  const BREAKDOWN = {
+    by: "coarseType",
+    objects: {
+      by: "objectClass",
+      then: { by: "count", count: true, bytes: true },
+      other: { by: "count", count: true, bytes: true },
+    },
+    scripts: {
+      by: "internalType",
+      then: { by: "count", count: true, bytes: true },
+    },
+    strings: {
+      by: "internalType",
+      then: { by: "count", count: true, bytes: true },
+    },
+    other: {
+      by: "internalType",
+      then: { by: "count", count: true, bytes: true },
+    },
+    domNode: {
+      by: "descriptiveType",
+      then: { by: "count", count: true, bytes: true },
+    },
+  };
+
+  const REPORT = {
+    objects: {
+      Array: { bytes: 50, count: 5 },
+      UInt8Array: { bytes: 80, count: 8 },
+      Int32Array: { bytes: 320, count: 32 },
+      other: { bytes: 0, count: 0 },
+    },
+    scripts: {
+      "js::jit::JitScript": { bytes: 30, count: 3 },
+    },
+    strings: {
+      JSAtom: { bytes: 60, count: 6 },
+    },
+    other: {
+      "js::Shape": { bytes: 80, count: 8 },
+    },
+    domNode: {},
+  };
+
+  const EXPECTED = {
+    name: null,
+    bytes: 0,
+    totalBytes: 620,
+    count: 0,
+    totalCount: 62,
+    children: undefined,
+    id: 14,
+    parent: undefined,
+    reportLeafIndex: undefined,
+  };
+
+  compareCensusViewData(BREAKDOWN, REPORT, EXPECTED, {
+    filter: "zzzzzzzzzzzzzzzzzzzz",
+  });
+}