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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.
53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
import assert from 'assert';
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import { slice } from './utils.js';
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import dropRightWhile from '../dropRightWhile.js';
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describe('dropRightWhile', function() {
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var array = [1, 2, 3, 4];
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var objects = [
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{ 'a': 0, 'b': 0 },
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{ 'a': 1, 'b': 1 },
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{ 'a': 2, 'b': 2 }
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];
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it('should drop elements while `predicate` returns truthy', function() {
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var actual = dropRightWhile(array, function(n) {
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return n > 2;
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});
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assert.deepStrictEqual(actual, [1, 2]);
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});
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it('should provide correct `predicate` arguments', function() {
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var args;
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dropRightWhile(array, function() {
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args = slice.call(arguments);
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});
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assert.deepStrictEqual(args, [4, 3, array]);
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});
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it('should work with `_.matches` shorthands', function() {
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assert.deepStrictEqual(dropRightWhile(objects, { 'b': 2 }), objects.slice(0, 2));
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});
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it('should work with `_.matchesProperty` shorthands', function() {
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assert.deepStrictEqual(dropRightWhile(objects, ['b', 2]), objects.slice(0, 2));
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});
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it('should work with `_.property` shorthands', function() {
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assert.deepStrictEqual(dropRightWhile(objects, 'b'), objects.slice(0, 1));
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});
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it('should return a wrapped value when chaining', function() {
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var wrapped = _(array).dropRightWhile(function(n) {
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return n > 2;
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});
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assert.ok(wrapped instanceof _);
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assert.deepEqual(wrapped.value(), [1, 2]);
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});
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});
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