Jasmine is Angular’s default testing framework, providing a behavior-driven development syntax for writing clean, readable tests. As the creator of CoreUI with over 12 years of Angular experience since 2014, I’ve used Jasmine extensively for testing thousands of components and services. Jasmine offers describe blocks for test suites, it blocks for individual tests, and powerful matchers for assertions. The framework includes spies for mocking functions and tracking calls without external dependencies.

Testing components and services that make HTTP requests requires mocking to avoid actual API calls and ensure tests run fast and reliably. With over 12 years of Angular development experience since 2014 and as the creator of CoreUI, I’ve written extensive test suites for HTTP-based services. Angular provides HttpClientTestingModule and HttpTestingController specifically for mocking HTTP requests in tests. This approach allows you to verify requests are made correctly and control response data for different test scenarios.

Form validation and submission logic are critical parts of Angular applications that must be thoroughly tested to prevent user frustration and data quality issues. As the creator of CoreUI with over 12 years of Angular experience since 2014, I’ve built and tested complex forms in countless enterprise applications. Testing Angular forms involves verifying that form controls validate correctly, error messages appear at the right time, and submission handlers work as expected. The approach differs slightly between reactive forms and template-driven forms but both ensure form behavior reliability.

Angular directives modify DOM behavior and appearance, making testing essential to ensure they work correctly across different scenarios and edge cases. With over 12 years of Angular development experience since 2014 and as the creator of CoreUI, I’ve tested numerous custom directives in production applications. Testing directives requires creating a test component that uses the directive, then asserting that the directive correctly modifies the DOM or behavior. This approach verifies both attribute directives that change element behavior and structural directives that modify the DOM structure.

Angular pipes transform display values in templates, and testing them ensures your data formatting logic works correctly with edge cases and unexpected inputs. As the creator of CoreUI with over 12 years of Angular experience since 2014, I’ve built and tested numerous custom pipes for enterprise applications. Testing pipes is straightforward because they’re pure functions that take input and return transformed output without side effects. The approach involves instantiating the pipe directly and calling its transform method with various test inputs.

Angular services contain critical business logic and data operations that must be thoroughly tested to prevent bugs in production applications. With over 12 years of Angular development experience since 2014 and as the creator of CoreUI, I’ve written comprehensive test suites for countless enterprise services. Testing services is simpler than testing components because services have no template or DOM to manage, focusing purely on logic and method outputs. The approach uses TestBed to inject the service and Jasmine to assert that methods behave correctly with various inputs.

Testing Angular components is essential for maintaining code quality and preventing regressions as your application grows and evolves. With over 12 years of Angular development experience since 2014 and as the creator of CoreUI, I’ve written thousands of component tests for production applications. Angular CLI automatically generates test files using TestBed for component creation and Jasmine for assertions. The testing approach involves creating a component instance, detecting changes, and asserting that the component renders and behaves correctly.

Creating branded Angular applications requires customizing Material Design components to match your company’s color palette and design system. With over 12 years of Angular experience since 2014 and as the creator of CoreUI, I’ve implemented custom themes for numerous enterprise applications. Angular Material provides a comprehensive theming system based on SCSS that allows you to define primary, accent, and warn color palettes. The approach involves creating a custom theme file and importing it into your application’s main stylesheet.

Every Angular application needs global styles for typography, spacing, colors, and reusable utility classes that apply across all components. As the creator of CoreUI with over 12 years of Angular development experience since 2014, I’ve architected styling systems for numerous enterprise applications. Angular provides a dedicated styles.scss file (or styles.css) in the project root specifically for global styles that affect the entire application. This approach ensures consistent design while keeping component-specific styles isolated.

Managing CSS scope in Angular components is critical for preventing style conflicts and maintaining clean component boundaries. With over 12 years of Angular experience since 2014 and as the creator of CoreUI, I’ve used ViewEncapsulation extensively in enterprise applications. Angular provides three ViewEncapsulation modes: Emulated (default), None, and ShadowDom, each controlling how styles are scoped to components. The ViewEncapsulation strategy determines whether component styles affect only that component or leak to the global scope.