68 lines
1.8 KiB
JavaScript
68 lines
1.8 KiB
JavaScript
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'use strict';
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var test = require('tape');
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var isDescriptor = require('../');
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var noop = function () {};
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test('isDescriptor', function (t) {
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t.test('value type', function (st) {
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st.notOk(isDescriptor('a'), 'string is not a descriptor');
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st.notOk(isDescriptor(null), 'null is not a descriptor');
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st.end();
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});
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t.test('should not be false when the object has unknown properties:', function (st) {
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st.ok(isDescriptor({ value: 'foo', bar: 'baz' }));
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st.ok(isDescriptor({ value: 'foo', bar: 'baz' }));
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st.end();
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});
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t.test('should be false when the object has accessor properties', function (st) {
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st.notOk(isDescriptor({ value: 'foo', get: noop }));
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st.notOk(isDescriptor({ set: noop, value: noop }));
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st.end();
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});
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t.test('should be true when the object has valid data-descriptor properties', function (st) {
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st.ok(isDescriptor({ value: 'foo' }));
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st.ok(isDescriptor({ value: noop }));
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st.end();
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});
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t.test('should be false when valid properties are invalid types', function (st) {
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st.notOk(isDescriptor({ value: 'foo', enumerable: 'foo' }));
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st.notOk(isDescriptor({ value: 'foo', configurable: 'foo' }));
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st.notOk(isDescriptor({ value: 'foo', writable: 'foo' }));
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st.end();
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});
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t.test('should be true when a value is a valid data descriptor', function (st) {
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st.ok(isDescriptor({ value: 'foo' }));
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st.ok(isDescriptor({ writable: true }));
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st.end();
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});
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t.test('should be false when the value is not a valid descriptor', function (st) {
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st.notOk(isDescriptor('foo'));
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st.notOk(isDescriptor({}));
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st.notOk(isDescriptor({ configurable: true }));
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st.notOk(isDescriptor({ enumerable: true }));
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st.notOk(isDescriptor({
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get: undefined,
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set: undefined,
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enumerable: true,
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configurable: true,
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}));
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st.end();
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});
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t.end();
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});
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