1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Script-getLineOffsets-08.js b/js/src/jit-test/tests/debug/Script-getLineOffsets-08.js
new file mode 100644
index 0000000000..b51b0e09f8
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Script-getLineOffsets-08.js
@@ -0,0 +1,25 @@
+// A "while" or a "for" loop should have a single entry point.
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger(g);
+
+dbg.onDebuggerStatement = function(frame) {
+  var s = frame.eval('f').return.script;
+
+  // There should be just a single entry point for the first line of
+  // the function.  See below to understand the "+2".
+  assertEq(s.getLineOffsets(g.line0 + 2).length, 1);
+};
+
+
+function test(code) {
+  g.eval('var line0 = Error().lineNumber;\n' +
+         'function f() {\n' +   // line0 + 1
+         code + '\n' +          // line0 + 2 -- see above
+         '}\n' +
+         'debugger;');
+}
+
+test('while (false)\n;');
+test('for (;false;)\n;');
+test('for (;;) break;\n;');