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-rw-r--r--js/xpconnect/tests/unit/test_envChain_JSM.js40
1 files changed, 40 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/test_envChain_JSM.js b/js/xpconnect/tests/unit/test_envChain_JSM.js
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+++ b/js/xpconnect/tests/unit/test_envChain_JSM.js
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+// Verify the environment chain for JSM described in
+// js/src/vm/EnvironmentObject.h.
+
+add_task(async function() {
+ const { envs } = ChromeUtils.import("resource://test/envChain.jsm");
+
+ Assert.equal(envs.length, 4);
+
+ let i = 0, env;
+
+ env = envs[i]; i++;
+ Assert.equal(env.type, "NonSyntacticLexicalEnvironmentObject");
+ Assert.equal(env.qualified, false);
+ Assert.equal(env.lexical, true, "lexical must live in the NSLEO");
+ Assert.equal(env.prop, false);
+
+ env = envs[i]; i++;
+ Assert.equal(env.type, "NonSyntacticVariablesObject");
+ Assert.equal(env.qualified, true, "qualified var must live in the NSVO");
+ Assert.equal(env.lexical, false);
+ Assert.equal(env.prop, true, "prop var must live in the NSVO");
+
+ env = envs[i]; i++;
+ Assert.equal(env.type, "GlobalLexicalEnvironmentObject");
+ Assert.equal(env.qualified, false);
+ Assert.equal(env.lexical, false);
+ Assert.equal(env.prop, false);
+
+ env = envs[i]; i++;
+ Assert.equal(env.type, "*BackstagePass*");
+ Assert.equal(env.qualified, false);
+ Assert.equal(env.lexical, false);
+ Assert.equal(env.prop, false);
+});