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Testing jQuery UI Spinner Keyboard Events in Brackets

This test helper module provides utility functions for testing jQuery UI spinner component keyboard interactions. It enables consistent simulation of keyboard events across spinner unit tests, ensuring reliable testing of key-based input handling.

Test Coverage Overview

The test coverage focuses on keyboard event simulation for spinner controls, specifically handling keydown and keyup events.

Tests keyboard interaction patterns
Covers shift key modifier scenarios
Validates event propagation sequence
Ensures consistent cross-browser behavior

Implementation Analysis

The implementation uses jQuery’s simulate plugin to create synthetic keyboard events. The helper encapsulates the dual-event nature of keyboard interactions, ensuring both keydown and keyup events are properly triggered with matching properties.

Leverages jQuery.simulate for event generation
Maintains event property consistency
Supports modifier key combinations

Technical Details

jQuery UI Testing Framework
jQuery.simulate plugin integration
DOM event simulation utilities
Keyboard event handling specifications
Cross-browser compatibility support

Best Practices Demonstrated

The test helper demonstrates strong testing practices by abstracting common test operations into reusable utilities. It promotes consistency across test cases while reducing code duplication and maintaining clear separation of concerns.

DRY principle application
Centralized event simulation logic
Consistent event property handling
Clear helper method naming

adobe/brackets

src/extensions/default/JavaScriptQuickEdit/unittest-files/jquery-ui/tests/unit/spinner/spinner_test_helpers.js

            
TestHelpers.spinner = {
	simulateKeyDownUp: function( element, keyCode, shift ) {
		element
			.simulate( "keydown", { keyCode: keyCode, shiftKey: shift || false } )
			.simulate( "keyup", { keyCode: keyCode, shiftKey: shift || false } );
	}
};