1 files changed, 36 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/utils/tests/ast.spec.js b/devtools/client/debugger/src/utils/tests/ast.spec.js
new file mode 100644
index 0000000000..0f00ae4fda
--- /dev/null
+++ b/devtools/client/debugger/src/utils/tests/ast.spec.js
@@ -0,0 +1,36 @@
+/* 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/>. */
+
+// @flow
+
+import { findBestMatchExpression } from "../ast";
+
+import { getSymbols } from "../../workers/parser/getSymbols";
+import { populateSource } from "../../workers/parser/tests/helpers";
+
+describe("find the best expression for the token", () => {
+  const source = populateSource("computed-props");
+  const symbols = getSymbols(source.id);
+
+  it("should find the identifier", () => {
+    const expression = findBestMatchExpression(symbols, {
+      line: 1,
+      column: 13,
+    });
+    expect(expression).toMatchSnapshot();
+  });
+
+  it("should find the expression for the property", () => {
+    const expression = findBestMatchExpression(symbols, {
+      line: 6,
+      column: 16,
+    });
+    expect(expression).toMatchSnapshot();
+  });
+
+  it("should find the identifier for computed member expressions", () => {
+    const expression = findBestMatchExpression(symbols, { line: 5, column: 6 });
+    expect(expression).toMatchSnapshot();
+  });
+});