61 lines
1.5 KiB
JavaScript
61 lines
1.5 KiB
JavaScript
'use strict';
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var test = require('tape');
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var isDataView = require('../');
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var hasToStringTag = require('has-tostringtag/shams')();
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var generators = require('make-generator-function')();
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var arrowFns = require('make-arrow-function').list();
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var forEach = require('for-each');
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var v = require('es-value-fixtures');
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var inspect = require('object-inspect');
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var availableTypedArrays = require('available-typed-arrays')();
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test('not DataViews', function (t) {
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forEach([].concat(
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// @ts-expect-error TS sucks at [].concat
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v.primitives,
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v.objects,
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function () {},
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generators,
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arrowFns,
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[]
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), /** @type {(nonDV: unknown) => void} */ function (nonDV) {
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t.equal(
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isDataView(nonDV),
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false,
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inspect(nonDV) + ' is not a DataView'
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);
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});
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forEach(availableTypedArrays, function (typedArray) {
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var TA = global[typedArray];
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var ta = new TA(8);
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t.equal(isDataView(ta), false, inspect(ta) + ' is not a DataView');
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});
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t.end();
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});
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test('@@toStringTag', { skip: !hasToStringTag }, function (t) {
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forEach(availableTypedArrays, function (typedArray) {
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// @ts-expect-error
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var fakeTypedArray = [];
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// @ts-expect-error
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fakeTypedArray[Symbol.toStringTag] = typedArray;
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// @ts-expect-error
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t.notOk(isDataView(fakeTypedArray), 'faked ' + typedArray + ' is not typed array');
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});
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t.end();
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});
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test('Data Views', { skip: typeof DataView !== 'function' }, function (t) {
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var ab = new ArrayBuffer(1);
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var dv = new DataView(ab);
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t.equal(isDataView(dv), true, inspect(dv) + ' is a DataView');
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t.end();
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});
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