1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/heap-analysis/byteSize-of-scripts.js b/js/src/jit-test/tests/heap-analysis/byteSize-of-scripts.js
new file mode 100644
index 000000000..11923b35b
--- /dev/null
+++ b/js/src/jit-test/tests/heap-analysis/byteSize-of-scripts.js
@@ -0,0 +1,46 @@
+// Check JS::ubi::Node::size results for scripts. We don't attempt to check
+// exact sizes in this test (deemed to difficult and non-deterministic), just
+// some sanity checks.
+
+function f1() {
+  return 42;
+}
+
+print("byteSizeOfScript(f1) = " + byteSizeOfScript(f1));
+assertEq(byteSizeOfScript(f1) > 1, true);
+
+function f2(n) {
+  var obj = {
+    x: 1,
+    y: 2,
+    z: 3,
+  };
+
+  if (i % 2 == 0) {
+    for (var i = 0; i < n; i++) {
+      this.x += i;
+      print(uneval(i));
+      obj[i] = i * i;
+      if (i > 10) {
+        f2(i / f1());
+      }
+    }
+  }
+
+  if (i % 3 == 0) {
+    for (var i = 0; i < n; i++) {
+      this.x *= i;
+      print(uneval(i));
+      obj[i] = i * i;
+      if (i > 10) {
+        f2(i / f1());
+      }
+    }
+  }
+
+  return this.x;
+}
+
+print("byteSizeOfScript(f2) = " + byteSizeOfScript(f2));
+assertEq(byteSizeOfScript(f2) > 1, true);
+assertEq(byteSizeOfScript(f2) > byteSizeOfScript(f1), true);