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vendor/react/promise/tests/PromiseTest/PromiseSettledTestTrait.php

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+<?php
+
+namespace React\Promise\PromiseTest;
+
+trait PromiseSettledTestTrait
+{
+    /**
+     * @return \React\Promise\PromiseAdapter\PromiseAdapterInterface
+     */
+    abstract public function getPromiseTestAdapter(callable $canceller = null);
+
+    /** @test */
+    public function thenShouldReturnAPromiseForSettledPromise()
+    {
+        $adapter = $this->getPromiseTestAdapter();
+
+        $adapter->settle();
+        $this->assertInstanceOf('React\\Promise\\PromiseInterface', $adapter->promise()->then());
+    }
+
+    /** @test */
+    public function thenShouldReturnAllowNullForSettledPromise()
+    {
+        $adapter = $this->getPromiseTestAdapter();
+
+        $adapter->settle();
+        $this->assertInstanceOf('React\\Promise\\PromiseInterface', $adapter->promise()->then(null, null, null));
+    }
+
+    /** @test */
+    public function cancelShouldReturnNullForSettledPromise()
+    {
+        $adapter = $this->getPromiseTestAdapter();
+
+        $adapter->settle();
+
+        $this->assertNull($adapter->promise()->cancel());
+    }
+
+    /** @test */
+    public function cancelShouldHaveNoEffectForSettledPromise()
+    {
+        $adapter = $this->getPromiseTestAdapter($this->expectCallableNever());
+
+        $adapter->settle();
+
+        $adapter->promise()->cancel();
+    }
+
+    /** @test */
+    public function doneShouldReturnNullForSettledPromise()
+    {
+        $adapter = $this->getPromiseTestAdapter();
+
+        $adapter->settle();
+        $this->assertNull($adapter->promise()->done(null, function () {}));
+    }
+
+    /** @test */
+    public function doneShouldReturnAllowNullForSettledPromise()
+    {
+        $adapter = $this->getPromiseTestAdapter();
+
+        $adapter->settle();
+        $this->assertNull($adapter->promise()->done(null, function () {}, null));
+    }
+
+    /** @test */
+    public function progressShouldNotInvokeProgressHandlerForSettledPromise()
+    {
+        $adapter = $this->getPromiseTestAdapter();
+
+        $adapter->settle();
+        $adapter->promise()->progress($this->expectCallableNever());
+        $adapter->notify();
+    }
+
+    /** @test */
+    public function alwaysShouldReturnAPromiseForSettledPromise()
+    {
+        $adapter = $this->getPromiseTestAdapter();
+
+        $adapter->settle();
+        $this->assertInstanceOf('React\\Promise\\PromiseInterface', $adapter->promise()->always(function () {}));
+    }
+}