1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Environment-scopeKind-01.js b/js/src/jit-test/tests/debug/Environment-scopeKind-01.js
new file mode 100644
index 0000000000..6f44cc51e2
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Environment-scopeKind-01.js
@@ -0,0 +1,26 @@
+// Environment.prototype.scopeKind produces expected values.
+
+load(libdir + 'eqArrayHelper.js');
+
+var g = newGlobal({newCompartment: true});
+var dbg = Debugger(g);
+
+function getScopeKinds(text) {
+  const kinds = [];
+  dbg.onDebuggerStatement = frame => {
+    let env = frame.environment;
+    while (env) {
+      kinds.push(env.scopeKind);
+      env = env.parent;
+    }
+  };
+  g.eval(text);
+  return kinds;
+}
+
+assertEqArray(getScopeKinds("function f(x) { debugger; }; f()"),
+              ["function", null, null]);
+assertEqArray(getScopeKinds("function f(x) { let y = 0; debugger; }; f()"),
+              ["function lexical", "function", null, null]);
+assertEqArray(getScopeKinds("function f(x) { let y = 0; with(x) { debugger; } } f({})"),
+              [null, "function lexical", "function", null, null]);