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Testing GlobalStateStore Animation Controls in learnGitBranching

This test suite validates the GlobalStateStore functionality in the learnGitBranching application, focusing on state management and animation controls. The tests verify core state transitions and tree visualization settings using Jest testing framework.

Test Coverage Overview

The test suite provides comprehensive coverage of the GlobalStateStore’s state management capabilities.

Tests animation state toggling functionality
Validates tree visualization orientation controls
Verifies state persistence across changes
Covers both positive and negative state transitions

Implementation Analysis

The implementation follows a behavior-driven development approach using Jest’s describe/it blocks. The tests utilize direct store method calls and action dispatches to verify state changes.

The testing pattern demonstrates the flux architecture’s unidirectional data flow, with actions triggering store updates that are then verified through getter methods.

Technical Details

Testing Framework: Jest
Store Implementation: Flux architecture
Test Utilities: expect assertions
Key Components: GlobalStateStore, GlobalStateActions
Test Structure: Modular describe blocks with focused test cases

Best Practices Demonstrated

The test suite exemplifies clean testing practices with isolated test cases and clear assertions.

Single responsibility principle in test cases
Consistent state reset between tests
Clear test case naming conventions
Thorough state transition verification
Explicit expected vs actual value comparisons

pcottle/learngitbranching

__tests__/GlobalStateStore.spec.js

            
var GlobalStateActions = require('../src/js/actions/GlobalStateActions');
var GlobalStateStore = require('../src/js/stores/GlobalStateStore');

describe('this store', function() {
  it('is can change animating', function() {
    expect(GlobalStateStore.getIsAnimating()).toEqual(false);
    GlobalStateActions.changeIsAnimating(true);
    expect(GlobalStateStore.getIsAnimating()).toEqual(true);
    GlobalStateActions.changeIsAnimating(false);
    expect(GlobalStateStore.getIsAnimating()).toEqual(false);
  });

  it('can change flip treey', function() {
    expect(GlobalStateStore.getFlipTreeY()).toEqual(false);
    GlobalStateActions.changeFlipTreeY(true);
    expect(GlobalStateStore.getFlipTreeY()).toEqual(true);
    GlobalStateActions.changeFlipTreeY(false);
    expect(GlobalStateStore.getFlipTreeY()).toEqual(false);
  });

});