1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Script-getOffsetsCoverage-02.js b/js/src/jit-test/tests/debug/Script-getOffsetsCoverage-02.js
new file mode 100644
index 000000000..20c8f6b8d
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Script-getOffsetsCoverage-02.js
@@ -0,0 +1,41 @@
+// |jit-test| --ion-pgo=off;
+
+// This script check that when we enable / disable the code coverage collection,
+// then we have different results for the getOffsetsCoverage methods.
+
+var g = newGlobal();
+var dbg = Debugger(g);
+var coverageInfo = [];
+var num = 20;
+function loop(i) {
+  var n = 0;
+  for (n = 0; n < i; n++)
+    debugger;
+}
+g.eval(loop.toSource());
+
+dbg.onDebuggerStatement = function (f) {
+  // Collect coverage info each time we hit a debugger statement.
+  coverageInfo.push(f.callee.script.getOffsetsCoverage());
+};
+
+coverageInfo = [];
+dbg.collectCoverageInfo = false;
+g.eval("loop(" + num + ");");
+assertEq(coverageInfo.length, num);
+assertEq(coverageInfo[0], null);
+assertEq(coverageInfo[num - 1], null);
+
+coverageInfo = [];
+dbg.collectCoverageInfo = true;
+g.eval("loop(" + num + ");");
+assertEq(coverageInfo.length, num);
+assertEq(!coverageInfo[0], false);
+assertEq(!coverageInfo[num - 1], false);
+
+coverageInfo = [];
+dbg.collectCoverageInfo = false;
+g.eval("loop(" + num + ");");
+assertEq(coverageInfo.length, num);
+assertEq(coverageInfo[0], null);
+assertEq(coverageInfo[num - 1], null);