All files / __testUtils__ MockResizeObserver.js

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
 
 
55x
55x
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
46x
 
 
 
export default class MockResizeObserver {
    constructor(callback) {
      this.callback = callback;
      this.elements = new Set();
    }
  
    observe(element) {
      this.elements.add(element);
      // Simulate an immediate resize observation for testing
      this.callback([
        {
          target: element,
          contentRect: element.getBoundingClientRect(),
          borderBoxSize: [{ blockSize: 100, inlineSize: 200 }]
        }
      ]);
    }
  
    unobserve(element) {
      this.elements.delete(element);
    }
  
    disconnect() {
      this.elements.clear();
    }
  }