React - Mastering Test Driven Development

Explore building a gift tracker in React using test driven development, from adding and saving gifts to removing items, with tests guiding feature development for a robust app.

Set up the gift giver React app, install Enzyme and Jest, and add React Bootstrap for production forms, following a test driven development approach with npm run test.

Learn to use snapshot testing in react with jest by creating an app component, understanding how snapshots track render output, and updating snapshots to reflect intentional changes.

Master rendering a list of gifts in a React app and adding a new gift via a button, with state initialization to an empty list and test driven development.

Render gift giver app in the browser with a React index file, wire the root to the DOM, and update a gift list via add gift button.

Master behavior driven development, a variation of test driven development that uses given–when–then scenarios to specify app state in React projects. Write tests first and document scenarios for clearer testing.

Adopt behavior driven development to test the app component, using describe and it blocks with before each and after each to manage setup, cleanup, and add gift button behavior.

Guide students through behavior driven development to build a gift component with two inputs for person and present, supported by enzyme tests, state initialization, and React Bootstrap form controls.

Learn to build a present input alongside the person input, update state on changes, and test that adding a gift renders the gift component in the app.

Build a remove gift feature by wiring a per-gift remove button to a parent remove function via props, removing gifts by id and updating state.

Explore test driven development with coverage reports, identify untested areas, and refactor into helper functions for a modular, higher-coverage codebase.

Enhance the gift giver app with optional styling by adding a css file, centering body text, and styling the gift component with borders and padding, plus bootstrap integration.

Master test driven development by building LootCheck: deposit and withdraw to track balance, provide real-time bitcoin value conversion, implement a behavior driven development approach with Redux, and test API interactions.

Master the test driven development approach by building a React app component with behavior driven development, using Enzyme for shallow rendering and snapshot tests, and wiring Redux and cookies.

Master how redux centralizes app state with a single store and follow the three-step recipe of reducers, actions, and action creators to manage data across components.

Visualize how a Redux-style store holds all stacks and cards, and how actions and producers update the store while components listen to and react to data flow.

Learn to add a wallet balance to a React app using Redux by creating balance actions and action creators, wiring constants, and building the balance reducer with test-driven development.

Advance test driven development by building a balance reducer for a Redux store, using failing tests and action constants to set the balance.

Learn to integrate a Redux store, provide it to the app, connect a wallet component via mapStateToProps, and test the connected and unconnected components using Enzyme and snapshot tests.

Render the wallet by wiring a connected wallet component into the app and verify its existence with tests that involve the redux store.

Learn how to implement deposit and withdraw in a Redux balance flow using behavior-driven development, creating action creators, constants, and a balance reducer to manage deposits and withdrawals.

Implement a wallet balance input with local state, handle on change updates, convert input to a number, and prepare actions for deposit or withdraw in the reducer.

learn how to dispatch deposit and withdraw actions in a React Redux wallet by binding action creators with connect, testing with mocks, and adding deposit and withdraw buttons.

Learn to handle asynchronous API calls in React using async actions, middleware, and redux thunk. Dispatch functions or promises to manage non-blocking requests.

Explore accessing the bitcoin price index API to fetch real-time bitcoin values, configure Redux Thunk for async actions, and test asynchronous fetch workflows in a test driven development workflow.

Explore how to fetch the bitcoin value with Redux thunk, mock stores, and Fetch Mark Library, creating async actions and testing them end to end.

Create a bitcoin redux reducer and its producer to fetch bitcoin data and update the bitcoin price index, then combine it with the balance reducer.

Combine reducers to create a single root reducer by mapping balance and bitcoin reducers, write tests for the default state, export the combined reducer, and apply redux-thunk middleware.

Build and test a connected Ludt component that reads user balance and Bitcoin conversion rate from the redux store, computes the converted Bitcoin value, and fetches Bitcoin data on mount.

Master test driven development in React by building a loot component that displays bitcoin balance from API data, using a compute bitcoin function and guard clauses.

Convert eligible components to stateless functional components (statelets) to keep them pure, remove class-based lifecycles, and improve readability and potential performance, updating tests and snapshots accordingly.

Run the coverage report with npm run test -- --coverage to generate a table and verify redux connect, props, and mounted component testing, aiming for over 95 percent.

Style the app with a new stylesheet, set a background from assets, and unify button and input styling, while adding a coin desk API attribution link.