1 files changed, 61 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/envChain_object-02.js b/js/src/jit-test/tests/debug/envChain_object-02.js
new file mode 100644
index 0000000000..297cf374d9
--- /dev/null
+++ b/js/src/jit-test/tests/debug/envChain_object-02.js
@@ -0,0 +1,61 @@
+// Verify the environment chain for Debugger.Object described in
+// js/src/vm/EnvironmentObject.h.
+
+const g = newGlobal({newCompartment: true});
+const dbg = new Debugger();
+const gw = dbg.addDebuggee(g);
+
+const bindings = {
+  bindings_prop: 50,
+};
+
+const envs = JSON.parse(gw.executeInGlobalWithBindings(`
+var qualified = 10;
+unqualified = 20;
+let lexical = 30;
+this.prop = 40;
+
+const envs = [];
+let env = getInnerMostEnvironmentObject();
+while (env) {
+  envs.push({
+    type: getEnvironmentObjectType(env) || "*global*",
+    qualified: !!Object.getOwnPropertyDescriptor(env, "qualified"),
+    unqualified: !!Object.getOwnPropertyDescriptor(env, "unqualified"),
+    lexical: !!Object.getOwnPropertyDescriptor(env, "lexical"),
+    prop: !!Object.getOwnPropertyDescriptor(env, "prop"),
+    bindings_prop: !!Object.getOwnPropertyDescriptor(env, "bindings_prop"),
+  });
+
+  env = getEnclosingEnvironmentObject(env);
+}
+JSON.stringify(envs);
+`, bindings).return);
+
+assertEq(envs.length, 3);
+
+let i = 0, env;
+
+env = envs[i]; i++;
+assertEq(env.type, "WithEnvironmentObject");
+assertEq(env.qualified, false);
+assertEq(env.unqualified, false);
+assertEq(env.lexical, false);
+assertEq(env.prop, false);
+assertEq(env.bindings_prop, true, "bindings property must live in the with env for bindings");
+
+env = envs[i]; i++;
+assertEq(env.type, "GlobalLexicalEnvironmentObject");
+assertEq(env.qualified, false);
+assertEq(env.unqualified, false);
+assertEq(env.lexical, true, "lexical must live in the GlobalLexicalEnvironmentObject");
+assertEq(env.prop, false);
+assertEq(env.bindings_prop, false);
+
+env = envs[i]; i++;
+assertEq(env.type, "*global*");
+assertEq(env.qualified, true, "qualified var must live in the global");
+assertEq(env.unqualified, true, "unqualified name must live in the global");
+assertEq(env.lexical, false);
+assertEq(env.prop, true, "this property must live in the global");
+assertEq(env.bindings_prop, false);