Session Overview
The primary goal of this sprint was to implement end-to-end integration testing for the checkout lifecycle and clean up crashing behaviors across existing modules, including the cart and currency formatting utilities. Multiple silent issues relating to environment setups, structural naming conventions, parameter passing, spy lifecycle management, and directory relative routing were identified and resolved. Problems Tracked & Fixed
The testing runner dashboard initially displayed a grey status bar reporting zero specs found. This occurred because Jasmine in the browser runs entirely through explicit scripts, and the newly added test suites were living in isolation without being linked via script modules to the central test DOM harness. This was resolved by synchronizing the tests HTML file explicitly with the current directory tree using modular script references for the money, cart, and order summary tests.Execution of the cart addition tests also resulted in failures returning unexpected NaN values. The root cause was that the underlying application logic signature reads two parameters, but the test suites were passing only a singular product identification string parameter. Lacking the second parameter caused the quantity argument to fall back to undefined, evaluating to NaN during quantity compounding arithmetic. The unit tests were refined to mock and pass explicit numbers as the second operational argument.The test execution crashed further on a runtime evaluation due to a type error stating that properties of null could not be set. This stemmed from dual semantic bugs in the DOM selectors, specifically a missing class identifier literal dot during test setup, and a leading whitespace syntax combined with an invalid selector dot inside raw HTML class assignments. The code was resolved by restructuring string interpolations to leverage native selector patterns cleanly.Mismatched pointer evaluations between local mock expectations and object definitions previously caused failures. This was driven by a divergence in the key casing strategy between lowercase and uppercase definitions. The codebase was validated to strictly adhere to Pascal-case Quantity properties within all internal data dictionaries to safeguard consistency across both mocking and output testing assertions.The testing suite encountered a cross-suite spy failure where the framework reported that the localStorage setItem method had already been spied upon. This state pollution occurred because spies were persisting across different test specs without being cleared, causing subsequent initialization hooks to collide. This was resolved by implementing an afterEach cleanup mechanism that resets the calls on the localStorage spies, alongside a teardown function that unmounts and wipes the sandbox HTML test container.System Health: Current State
All nine specifications have successfully registered and passed across the test framework. State leakage between consecutive component renders has been mitigated by appending container-teardown functions and resetting global mocks. The test suite now stands at nine total specs, zero failures, covering the formatCurrency, add to cart, and renderOrderSummary suites. No further immediate testing actions are required for these modules.