36 lines
1.1 KiB
TypeScript
36 lines
1.1 KiB
TypeScript
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import { describe, expect, test } from 'bun:test';
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import { getVisualViewportState } from './useVisualViewport';
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const withWindow = (value: { innerHeight: number; visualViewport?: { height: number } | null }, run: () => void) => {
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const originalWindow = Object.getOwnPropertyDescriptor(globalThis, 'window');
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Object.defineProperty(globalThis, 'window', {
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configurable: true,
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value,
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});
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try {
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run();
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} finally {
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if (originalWindow) {
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Object.defineProperty(globalThis, 'window', originalWindow);
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} else {
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Reflect.deleteProperty(globalThis, 'window');
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}
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}
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};
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describe('getVisualViewportState', () => {
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test('falls back to innerHeight when visualViewport is unavailable', () => {
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withWindow({ innerHeight: 812 }, () => {
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expect(getVisualViewportState()).toEqual({ height: 812, keyboardHeight: 0 });
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});
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});
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test('derives keyboard height from visualViewport height', () => {
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withWindow({ innerHeight: 812, visualViewport: { height: 512 } }, () => {
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expect(getVisualViewportState()).toEqual({ height: 512, keyboardHeight: 300 });
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});
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});
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});
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