1 files changed, 55 insertions, 0 deletions
diff --git a/devtools/client/shared/components/test/node/__mocks__/object-front.js b/devtools/client/shared/components/test/node/__mocks__/object-front.js
new file mode 100644
index 0000000000..def182111d
--- /dev/null
+++ b/devtools/client/shared/components/test/node/__mocks__/object-front.js
@@ -0,0 +1,55 @@
+/* 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";
+
+function ObjectFront(grip, overrides) {
+  return {
+    grip,
+    enumEntries() {
+      return Promise.resolve(
+        this.getIterator({
+          ownProperties: {},
+        })
+      );
+    },
+    enumProperties(options) {
+      return Promise.resolve(
+        this.getIterator({
+          ownProperties: {},
+        })
+      );
+    },
+    enumSymbols() {
+      return Promise.resolve(
+        this.getIterator({
+          ownSymbols: [],
+        })
+      );
+    },
+    enumPrivateProperties() {
+      return Promise.resolve(
+        this.getIterator({
+          privateProperties: [],
+        })
+      );
+    },
+    getPrototype() {
+      return Promise.resolve({
+        prototype: {},
+      });
+    },
+    // Declared here so we can override it.
+    getIterator(res) {
+      return {
+        slice(start, count) {
+          return Promise.resolve(res);
+        },
+      };
+    },
+    ...overrides,
+  };
+}
+
+module.exports = ObjectFront;