wehub-resource-sync
42 lines
1.2 KiB
JavaScript
42 lines
1.2 KiB
JavaScript
'use strict';
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const test = require('node:test');
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const assert = require('node:assert/strict');
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const {
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constrainImageDimensions,
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estimateDataUrlBytes,
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MAX_BACKGROUND_EDGE,
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} = require('./background-image.js');
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test('constrainImageDimensions keeps smaller images unchanged', () => {
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assert.deepEqual(
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constrainImageDimensions({ width: 1200, height: 800, maxEdge: MAX_BACKGROUND_EDGE }),
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{ width: 1200, height: 800 }
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);
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});
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test('constrainImageDimensions scales landscape images down to the max edge', () => {
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assert.deepEqual(
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constrainImageDimensions({ width: 4000, height: 2000, maxEdge: 1920 }),
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{ width: 1920, height: 960 }
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);
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});
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test('constrainImageDimensions scales portrait images down to the max edge', () => {
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assert.deepEqual(
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constrainImageDimensions({ width: 1800, height: 3600, maxEdge: 1600 }),
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{ width: 800, height: 1600 }
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);
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});
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test('estimateDataUrlBytes converts base64 payload length to bytes', () => {
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const payload = Buffer.from('tab-harbor-background').toString('base64');
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const dataUrl = `data:image/jpeg;base64,${payload}`;
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assert.equal(
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estimateDataUrlBytes(dataUrl),
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Buffer.byteLength('tab-harbor-background')
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);
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});
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