public function testMap()
{
$array = ['a' => 1, 'b' => 2, 'c' => 2, 'd' => 3, 'e' => 4, 'f' => 4, 'g' => 5, 'h' => 6];
$stream = new Stream($array);
$res = $stream->distinct()->collect(new MapCollector());
$this->assertEquals(['a' => 1, 'b' => 2, 'd' => 3, 'e' => 4, 'g' => 5, 'h' => 6], $res);
}
public function testAnyReturningData()
{
$array = [1, 2, 3, 4, 5, 6];
$stream = new Stream($array);
$res = $stream->findAny();
$this->assertFalse($res->isEmpty());
$this->assertTrue(in_array($res->get(), $array, true));
}
public function testException()
{
try {
$array = [2, 4, -2, -9];
$stream = new Stream($array);
$res = $stream->sort('reverseComparator');
} catch (\InvalidArgumentException $ex) {
return;
}
$this->fail('An expected exception has not been raised.');
}
public function testNotCallable()
{
try {
Stream::of()->map(true);
} catch (\InvalidArgumentException $ex) {
return;
}
$this->fail('An expected exception has not been raised.');
}
<?php
require_once '../../src/autoload.php';
use phpstream\Stream;
$stream = new Stream(['0', 'aa', '1', 'bb', '2', 'cc', '3', 'dd', '4']);
$res = $stream->map(function ($value) {
return intval($value);
})->filter(function ($value) {
return $value > 0;
})->filter(function ($value) {
return $value % 2 == 0;
})->map(function ($value) {
return $value + 1;
})->reduceWithDefault(function ($acc, $v) {
return $acc + $v;
}, 0);
// Returns 8 !
var_dump($res);
public function testToMap()
{
$res = Stream::of(['a' => 1, 'z' => 2, 'e' => 3, 'r' => 4, 't' => 5, 'y' => 6])->toMap();
$this->assertEquals(['a' => 1, 'z' => 2, 'e' => 3, 'r' => 4, 't' => 5, 'y' => 6], $res);
}
public function testExceptionWithDefault()
{
try {
$array = [];
$stream = new Stream($array);
$stream->reduceWithDefault('MinFunction', phpstream\util\Optional::of(-25));
} catch (\InvalidArgumentException $ex) {
return;
}
$this->fail('An expected exception has not been raised.');
}