<?php
namespace iter;
use iter\fn;
use PHPUnit\Framework\TestCase;
class IterFnTest extends TestCase {
public function testIndex() {
$getIndex3 = fn\index(3);
$getIndexTest = fn\index('test');
$arr1 = [10, 11, 12, 13, 14, 15];
$arr2 = ['foo' => 'bar', 'test' => 'tset', 'bar' => 'foo'];
$this->assertSame($arr1[3], $getIndex3($arr1));
$this->assertSame($arr2['test'], $getIndexTest($arr2));
}
public function testNestedIndex() {
$getIndexFooBar = fn\nested_index('foo', 'bar');
$getIndexFooBarBaz = fn\nested_index('foo', 'bar', 'baz');
$getEmptyIndex = fn\nested_index();
$array = [
'foo' => [
'bar' => [
'baz' => 42
]
]
];
$this->assertSame($array['foo']['bar'], $getIndexFooBar($array));
$this->assertSame($array['foo']['bar']['baz'], $getIndexFooBarBaz($array));
$this->assertSame($array, $getEmptyIndex($array));
}This is a PHP library that provides iteration primitives for generators. Friends who need it can download it directly and use it, which is very convenient.
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