init

vendor/react/promise/tests/DeferredTest.php

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+<?php
+
+namespace React\Promise;
+
+use React\Promise\PromiseAdapter\CallbackPromiseAdapter;
+
+class DeferredTest extends TestCase
+{
+    use PromiseTest\FullTestTrait;
+
+    public function getPromiseTestAdapter(callable $canceller = null)
+    {
+        $d = new Deferred($canceller);
+
+        return new CallbackPromiseAdapter([
+            'promise' => [$d, 'promise'],
+            'resolve' => [$d, 'resolve'],
+            'reject'  => [$d, 'reject'],
+            'notify'  => [$d, 'progress'],
+            'settle'  => [$d, 'resolve'],
+        ]);
+    }
+
+    /** @test */
+    public function progressIsAnAliasForNotify()
+    {
+        $deferred = new Deferred();
+
+        $sentinel = new \stdClass();
+
+        $mock = $this->createCallableMock();
+        $mock
+            ->expects($this->once())
+            ->method('__invoke')
+            ->with($sentinel);
+
+        $deferred->promise()
+            ->then($this->expectCallableNever(), $this->expectCallableNever(), $mock);
+
+        $deferred->progress($sentinel);
+    }
+
+    /** @test */
+    public function shouldRejectWithoutCreatingGarbageCyclesIfCancellerRejectsWithException()
+    {
+        gc_collect_cycles();
+        $deferred = new Deferred(function ($resolve, $reject) {
+            $reject(new \Exception('foo'));
+        });
+        $deferred->promise()->cancel();
+        unset($deferred);
+
+        $this->assertSame(0, gc_collect_cycles());
+    }
+
+    /** @test */
+    public function shouldRejectWithoutCreatingGarbageCyclesIfParentCancellerRejectsWithException()
+    {
+        gc_collect_cycles();
+        $deferred = new Deferred(function ($resolve, $reject) {
+            $reject(new \Exception('foo'));
+        });
+        $deferred->promise()->then()->cancel();
+        unset($deferred);
+
+        $this->assertSame(0, gc_collect_cycles());
+    }
+
+    /** @test */
+    public function shouldRejectWithoutCreatingGarbageCyclesIfCancellerHoldsReferenceAndExplicitlyRejectWithException()
+    {
+        gc_collect_cycles();
+        $deferred = new Deferred(function () use (&$deferred) { });
+        $deferred->reject(new \Exception('foo'));
+        unset($deferred);
+
+        $this->assertSame(0, gc_collect_cycles());
+    }
+
+    /** @test */
+    public function shouldNotLeaveGarbageCyclesWhenRemovingLastReferenceToPendingDeferred()
+    {
+        gc_collect_cycles();
+        $deferred = new Deferred();
+        $deferred->promise();
+        unset($deferred);
+
+        $this->assertSame(0, gc_collect_cycles());
+    }
+
+    /** @test */
+    public function shouldNotLeaveGarbageCyclesWhenRemovingLastReferenceToPendingDeferredWithUnusedCanceller()
+    {
+        gc_collect_cycles();
+        $deferred = new Deferred(function () { });
+        $deferred->promise();
+        unset($deferred);
+
+        $this->assertSame(0, gc_collect_cycles());
+    }
+
+    /** @test */
+    public function shouldNotLeaveGarbageCyclesWhenRemovingLastReferenceToPendingDeferredWithNoopCanceller()
+    {
+        gc_collect_cycles();
+        $deferred = new Deferred(function () { });
+        $deferred->promise()->cancel();
+        unset($deferred);
+
+        $this->assertSame(0, gc_collect_cycles());
+    }
+}