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* Install test dependencies. * Add initial test files. These files were created using a simplistic AST manipulator using `recast` to preserve formatting. There's bound to be a huge chunk of errors, but this serves as a good start. QUnit was replaced with Mocha, with ES2015 imports running via `esm`. As far as possible, QUnit-specific syntax has been replaced with Mocha's `describe` and `it`, while the native Node.js `assert` module is used for assertions. Files in the `test` directory ending in `.test.js` will be treated as test files. * Add initial passing files to test run.
84 lines
2.3 KiB
JavaScript
84 lines
2.3 KiB
JavaScript
import assert from 'assert';
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import lodashStable from 'lodash';
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import {
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slice,
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asyncFunc,
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genFunc,
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arrayViews,
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objToString,
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funcTag,
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falsey,
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stubFalse,
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args,
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symbol,
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document,
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realm,
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} from './utils.js';
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import isFunction from '../isFunction.js';
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describe('isFunction', function() {
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it('should return `true` for functions', function() {
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assert.strictEqual(isFunction(_), true);
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assert.strictEqual(isFunction(slice), true);
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});
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it('should return `true` for async functions', function() {
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assert.strictEqual(isFunction(asyncFunc), typeof asyncFunc == 'function');
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});
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it('should return `true` for generator functions', function() {
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assert.strictEqual(isFunction(genFunc), typeof genFunc == 'function');
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});
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it('should return `true` for the `Proxy` constructor', function() {
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if (Proxy) {
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assert.strictEqual(isFunction(Proxy), true);
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}
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});
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it('should return `true` for array view constructors', function() {
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var expected = lodashStable.map(arrayViews, function(type) {
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return objToString.call(root[type]) == funcTag;
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});
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var actual = lodashStable.map(arrayViews, function(type) {
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return isFunction(root[type]);
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});
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assert.deepStrictEqual(actual, expected);
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});
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it('should return `false` for non-functions', function() {
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var expected = lodashStable.map(falsey, stubFalse);
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var actual = lodashStable.map(falsey, function(value, index) {
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return index ? isFunction(value) : isFunction();
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});
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assert.deepStrictEqual(actual, expected);
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assert.strictEqual(isFunction(args), false);
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assert.strictEqual(isFunction([1, 2, 3]), false);
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assert.strictEqual(isFunction(true), false);
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assert.strictEqual(isFunction(new Date), false);
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assert.strictEqual(isFunction(new Error), false);
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assert.strictEqual(isFunction({ 'a': 1 }), false);
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assert.strictEqual(isFunction(1), false);
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assert.strictEqual(isFunction(/x/), false);
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assert.strictEqual(isFunction('a'), false);
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assert.strictEqual(isFunction(symbol), false);
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if (document) {
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assert.strictEqual(isFunction(document.getElementsByTagName('body')), false);
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}
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});
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it('should work with a function from another realm', function() {
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if (realm.function) {
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assert.strictEqual(isFunction(realm.function), true);
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}
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});
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});
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