gpui▌

GPUI provides a comprehensive testing framework that allows you to test UI components, async operations, and distributed systems. Tests run on a single-threaded executor that provides deterministic execution and the ability to test complex async scenarios. GPUI tests use the #[gpui::test] attribute and work with TestAppContext for basic testing and VisualTestContext for window-dependent tests.

GPUI provides CSS-like styling with Rust type safety.

Use the low-level Element trait when:

Global state in GPUI provides app-wide shared data accessible from any context.

Code style guide derived from gpui-component implementation patterns.

An Entity<T> is a handle to state of type T, providing safe access and updates.

GPUI uses different context types for different scenarios:

GPUI's focus system enables keyboard navigation and focus management.

GPUI provides integrated async runtime for foreground UI updates and background computation.

GPUI provides event system for component coordination: