24153816851

Committed 08 Apr 2026 07:17PM UTC coverage: 53.247% (-12.1%) from 65.319%

Build # 24153816851

Build Type

push

github

Committed by

web-flow

Commit Message

chore: Move from tape to vitest (#3351)

Coverage Stats

8651 of 17291 branches covered (50.03%)

Branch coverage included in aggregate %.

7 of 7 new or added lines in 1 file covered. (100.0%)

2031 existing lines in 296 files now uncovered.

17563 of 31940 relevant lines covered (54.99%)

5279.54 hits per line

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0.0

/modules/compression/src/workers/compression-worker.ts

// loaders.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors

import {createWorker} from '@loaders.gl/worker-utils';

// Compressors
import {NoCompression} from '../lib/no-compression';
import {BrotliCompression} from '../lib/brotli-compression';
import {DeflateCompression} from '../lib/deflate-compression';
import {GZipCompression} from '../lib/gzip-compression';
import {LZ4Compression} from '../lib/lz4-compression';
// import {LZOCompression} from '../lib/lzo-compression';
import {SnappyCompression} from '../lib/snappy-compression';
import {ZstdCompression} from '../lib/zstd-compression';

// Import big dependencies

// import brotli from 'brotli'; - brotli has problems with decompress in browsers
// import brotliDecompress from 'brotli/decompress';
import lz4js from 'lz4js';
// import lzo from 'lzo';
// import {ZstdCodec} from 'zstd-codec';

// Inject large dependencies through Compression constructor options
const modules = {
  // brotli has problems with decompress in browsers
  // brotli: {
  //   decompress: brotliDecompress,
  //   compress: () => {
  //     throw new Error('brotli compress');
  //   }
  // },
  lz4js
  // lzo,
  // 'zstd-codec': ZstdCodec
};

/** @type {Compression[]} */
const COMPRESSIONS = [
  new NoCompression({modules}),
  new BrotliCompression({modules}),
  new DeflateCompression({modules}),
  new GZipCompression({modules}),
  // new LZOCompression({modules}),
  new LZ4Compression({modules}),
  new SnappyCompression({modules}),
  new ZstdCompression({modules})
];

createWorker(async (data, options = {}) => {
  const operation = getOperation(String(options?.operation));
  const compression = getCompression(String(options?.compression));

  // @ts-ignore
  switch (operation) {
    case 'compress':
      return await compression.compress(data);
    case 'decompress':
      return await compression.decompress(data);
    default:
      throw new Error('invalid option');
  }
});

function getOperation(operation: string): 'compress' | 'decompress' {
  switch (operation) {
    case 'compress':
    case 'deflate':
      return 'compress';
    case 'decompress':
    case 'inflate':
      return 'decompress';
    default:
      throw new Error(
        `@loaders.gl/compression: Unsupported operation ${operation}. Expected 'compress' or 'decompress'`
      );
  }
}

function getCompression(name: string) {
  const Compression = COMPRESSIONS.find(compression_ => name === compression_.name);
  if (!Compression) {
    throw new Error(`@loaders.gl/compression: Unsupported compression ${name}`);
  }
  return Compression;
}

1	// loaders.gl
2	// SPDX-License-Identifier: MIT
3	// Copyright (c) vis.gl contributors
4
5	import {createWorker} from '@loaders.gl/worker-utils';
6
7	// Compressors
8	import {NoCompression} from '../lib/no-compression';
9	import {BrotliCompression} from '../lib/brotli-compression';
10	import {DeflateCompression} from '../lib/deflate-compression';
11	import {GZipCompression} from '../lib/gzip-compression';
12	import {LZ4Compression} from '../lib/lz4-compression';
13	// import {LZOCompression} from '../lib/lzo-compression';
14	import {SnappyCompression} from '../lib/snappy-compression';
15	import {ZstdCompression} from '../lib/zstd-compression';
16
17	// Import big dependencies
18
19	// import brotli from 'brotli'; - brotli has problems with decompress in browsers
20	// import brotliDecompress from 'brotli/decompress';
21	import lz4js from 'lz4js';
22	// import lzo from 'lzo';
23	// import {ZstdCodec} from 'zstd-codec';
24
25	// Inject large dependencies through Compression constructor options
UNCOV 26	const modules = {	×
27	// brotli has problems with decompress in browsers
28	// brotli: {
29	// decompress: brotliDecompress,
30	// compress: () => {
31	// throw new Error('brotli compress');
32	// }
33	// },
34	lz4js
35	// lzo,
36	// 'zstd-codec': ZstdCodec
37	};
38
39	/** @type {Compression[]} */
UNCOV 40	const COMPRESSIONS = [	×
41	new NoCompression({modules}),
42	new BrotliCompression({modules}),
43	new DeflateCompression({modules}),
44	new GZipCompression({modules}),
45	// new LZOCompression({modules}),
46	new LZ4Compression({modules}),
47	new SnappyCompression({modules}),
48	new ZstdCompression({modules})
49	];
50
UNCOV 51	createWorker(async (data, options = {}) => {	×
UNCOV 52	const operation = getOperation(String(options?.operation));	×
UNCOV 53	const compression = getCompression(String(options?.compression));	×
54
55	// @ts-ignore
UNCOV 56	switch (operation) {	×
57	case 'compress':
UNCOV 58	return await compression.compress(data);	×
59	case 'decompress':
UNCOV 60	return await compression.decompress(data);	×
61	default:
62	throw new Error('invalid option');	×
63	}
64	});
65
66	function getOperation(operation: string): 'compress' \| 'decompress' {
UNCOV 67	switch (operation) {	×
68	case 'compress':
69	case 'deflate':
UNCOV 70	return 'compress';	×
71	case 'decompress':
72	case 'inflate':
UNCOV 73	return 'decompress';	×
74	default:
75	throw new Error(	×
76	`@loaders.gl/compression: Unsupported operation ${operation}. Expected 'compress' or 'decompress'`
77	);
78	}
79	}
80
81	function getCompression(name: string) {
UNCOV 82	const Compression = COMPRESSIONS.find(compression_ => name === compression_.name);	×
UNCOV 83	if (!Compression) {	×
84	throw new Error(`@loaders.gl/compression: Unsupported compression ${name}`);	×
85	}
UNCOV 86	return Compression;	×
87	}

visgl / loaders.gl / 24153816851

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