1 files changed, 77 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/components/SecondaryPanes/tests/Expressions.spec.js b/devtools/client/debugger/src/components/SecondaryPanes/tests/Expressions.spec.js
new file mode 100644
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+++ b/devtools/client/debugger/src/components/SecondaryPanes/tests/Expressions.spec.js
@@ -0,0 +1,77 @@
+/* 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/>. */
+
+import React from "devtools/client/shared/vendor/react";
+import { shallow } from "enzyme";
+import Expressions from "../Expressions";
+
+function generateDefaults(overrides) {
+  return {
+    evaluateExpressions: async () => {},
+    expressions: [
+      {
+        input: "expression1",
+        value: {
+          result: {
+            value: "foo",
+            class: "",
+          },
+        },
+      },
+      {
+        input: "expression2",
+        value: {
+          result: {
+            value: "bar",
+            class: "",
+          },
+        },
+      },
+    ],
+    ...overrides,
+  };
+}
+
+function render(overrides = {}) {
+  const props = generateDefaults(overrides);
+  const component = shallow(
+    React.createElement(Expressions.WrappedComponent, props)
+  );
+  return { component, props };
+}
+
+describe("Expressions", () => {
+  it("should render", async () => {
+    const { component } = render();
+    expect(component).toMatchSnapshot();
+  });
+
+  it("should always have unique keys", async () => {
+    const overrides = {
+      expressions: [
+        {
+          input: "expression1",
+          value: {
+            result: {
+              value: undefined,
+              class: "",
+            },
+          },
+        },
+        {
+          input: "expression2",
+          value: {
+            result: {
+              value: undefined,
+              class: "",
+            },
+          },
+        },
+      ],
+    };
+
+    const { component } = render(overrides);
+    expect(component).toMatchSnapshot();
+  });
+});