test("add contact to notebook", () => { // Arrange: Create the object and initial data const notebook = new Notebook(); // Act: Perform the action being tested notebook.add("John", 1234); // Assert: Verify the result is as expected expect(notebook.get("John")).toBe(1234); }); Use code with caution. Copied to clipboard Depending on the context, "aaa.txt" may also refer to:
: This phase consists of the single action or method invocation being tested. Ideally, this should be a one-liner to keep the focus strictly on the behavior under investigation. aaa.txt
A typical test following this pattern would look like this in code: javascript test("add contact to notebook", () => { //