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amp/test/AdaptTest.php
2020-10-02 13:40:29 -05:00

96 lines
2.1 KiB
PHP

<?php
namespace Amp\Test;
use Amp\Failure;
use Amp\PHPUnit\AsyncTestCase;
use Amp\Promise;
use Amp\Success;
use function Amp\await;
class PromiseMock
{
private Promise $promise;
public function __construct(Promise $promise)
{
$this->promise = $promise;
}
public function then(callable $onFulfilled = null, callable $onRejected = null)
{
$this->promise->onResolve(function ($exception, $value) use ($onFulfilled, $onRejected): void {
if ($exception) {
if ($onRejected) {
$onRejected($exception);
}
return;
}
if ($onFulfilled) {
$onFulfilled($value);
}
});
}
}
class AdaptTest extends AsyncTestCase
{
public function testThenCalled(): void
{
$mock = $this->getMockBuilder(PromiseMock::class)
->disableOriginalConstructor()
->getMock();
$mock->expects($this->once())
->method("then")
->with(
$this->callback(function ($resolve) {
return \is_callable($resolve);
}),
$this->callback(function ($reject) {
return \is_callable($reject);
})
);
$promise = Promise\adapt($mock);
$this->assertInstanceOf(Promise::class, $promise);
}
/**
* @depends testThenCalled
*/
public function testPromiseFulfilled(): void
{
$value = 1;
$promise = new PromiseMock(new Success($value));
$promise = Promise\adapt($promise);
$this->assertSame($value, await($promise));
}
/**
* @depends testThenCalled
*/
public function testPromiseRejected(): void
{
$exception = new \Exception;
$promise = new PromiseMock(new Failure($exception));
$promise = Promise\adapt($promise);
try {
await($promise);
} catch (\Exception $reason) {
$this->assertSame($exception, $reason);
return;
}
$this->fail("Promise was not failed");
}
}