1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug1827072.js b/js/src/jit-test/tests/basic/bug1827072.js
new file mode 100644
index 0000000000..9e47c26cd7
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug1827072.js
@@ -0,0 +1,19 @@
+assertThrows(() => newString("", { capacity: 1 }));
+assertThrows(() => newString("x", { capacity: 2 }));
+
+// Too large for an inline string.
+const nonInlineLinear = "123456789012345678901234567890";
+assertEq(nonInlineLinear.length, 30);
+
+newString(nonInlineLinear, { capacity: 29, tenured: true });
+newString(nonInlineLinear, { capacity: 30, tenured: true });
+newString(nonInlineLinear, { capacity: 31, tenured: true });
+
+function assertThrows(f) {
+  try {
+    f();
+  } catch {
+    return;
+  }
+  throw new Error("missing error");
+}