Diffusion Ant (master) Code

ant/examples/spec/formdata.js
dce8e2e6fb90master

formdata.js
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			import { test, testThrows, testDeep, summary } from './helpers.js';

			console.log('FormData constructor\n');

			const fd0 = new FormData();
			test('empty constructor', fd0.has('x'), false);

			testThrows('requires new', () => FormData());
			testThrows('rejects form element', () => new FormData(document));

			console.log('\nappend / get / has / delete / set\n');

			const fd = new FormData();

			fd.append('name', 'Alice');
			test('append then get', fd.get('name'), 'Alice');
			test('has returns true', fd.has('name'), true);
			test('has missing returns false', fd.has('other'), false);

			fd.append('name', 'Bob');
			const all = fd.getAll('name');
			test('getAll length after two appends', all.length, 2);
			test('getAll first', all[0], 'Alice');
			test('getAll second', all[1], 'Bob');

			fd.set('name', 'Carol');
			test('set replaces all', fd.getAll('name').length, 1);
			test('set value', fd.get('name'), 'Carol');

			fd.delete('name');
			test('delete removes all', fd.has('name'), false);
			test('get after delete returns null', fd.get('name'), null);

			console.log('\nBlob values\n');

			const blob = new Blob(['hello'], { type: 'text/plain' });
			const fdb = new FormData();
			fdb.append('file', blob);

			const got = fdb.get('file');
			test('blob entry is File instance', got instanceof File, true);
			test('blob entry filename default', got.name, 'blob');
			test('blob entry type', got.type, 'text/plain');

			fdb.append('file2', blob, 'custom.txt');
			const got2 = fdb.get('file2');
			test('blob with filename', got2.name, 'custom.txt');

			console.log('\nFile values\n');

			const file = new File(['world'], 'test.txt', { type: 'text/html' });
			const fdf = new FormData();
			fdf.append('upload', file);

			const gotf = fdf.get('upload');
			test('file entry is File instance', gotf instanceof File, true);
			test('file entry name from File', gotf.name, 'test.txt');
			test('file entry type', gotf.type, 'text/html');

			fdf.append('upload2', file, 'override.txt');
			test('file entry name overridden', fdf.get('upload2').name, 'override.txt');

			console.log('\ngetAll with mixed types\n');

			const fdm = new FormData();
			fdm.append('x', 'str');
			fdm.append('x', new Blob(['data']));
			const mixed = fdm.getAll('x');
			test('mixed getAll length', mixed.length, 2);
			test('mixed first is string', mixed[0], 'str');
			test('mixed second is File', mixed[1] instanceof File, true);

			console.log('\nforEach\n');

			const fdfe = new FormData();
			fdfe.append('b', '2');
			fdfe.append('a', '1');
			const seen = [];
			fdfe.forEach((val, name) => seen.push(`${name}=${val}`));
			test('forEach visits all entries', seen.length, 2);
			test('forEach insertion order first', seen[0], 'b=2');
			test('forEach insertion order second', seen[1], 'a=1');

			console.log('\nentries / keys / values\n');

			const fdi = new FormData();
			fdi.append('x', '1');
			fdi.append('y', '2');
			fdi.append('x', '3');

			const keys = [...fdi.keys()];
			test('keys length', keys.length, 3);
			test('keys first', keys[0], 'x');
			test('keys second', keys[1], 'y');
			test('keys third', keys[2], 'x');

			const vals = [...fdi.values()];
			test('values first', vals[0], '1');
			test('values second', vals[1], '2');
			test('values third', vals[2], '3');

			const entries = [...fdi.entries()];
			test('entries length', entries.length, 3);
			test('entries first name', entries[0][0], 'x');
			test('entries first value', entries[0][1], '1');

			console.log('\nSymbol.iterator\n');

			const fds = new FormData();
			fds.append('k', 'v');
			const iter_result = [...fds];
			test('Symbol.iterator yields entries', iter_result.length, 1);
			test('Symbol.iterator entry name', iter_result[0][0], 'k');
			test('Symbol.iterator entry value', iter_result[0][1], 'v');

			console.log('\ntoStringTag\n');

			test('toStringTag', Object.prototype.toString.call(new FormData()), '[object FormData]');

			console.log('\nmultipart parameter parsing\n');

			const boundary = 'spec-boundary';
			const multipartBody =
			`--${boundary}\r\n` +
			`Content-Disposition: form-data; name="field"\r\n\r\n` +
			`value\r\n` +
			`--${boundary}--\r\n`;

			const multipartReq = new Request('https://example.com/', {
			method: 'POST',
			headers: {
			'Content-Type': `multipart/form-data; boundaryx=wrong; boundary="${boundary}"`,
			},
			body: multipartBody,
			});

			const multipartFd = await multipartReq.formData();
			test('multipart boundary lookup skips longer prefix match', multipartFd.get('field'), 'value');

			summary();

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