nextcloud/tests/lib/Hooks/BasicEmitterTest.php

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<?php
/**
* Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace Test\Hooks;
/**
* Class DummyEmitter
*
* class to make BasicEmitter::emit publicly available
*
* @package Test\Hooks
*/
class DummyEmitter extends \OC\Hooks\BasicEmitter {
public function emitEvent($scope, $method, $arguments = []) {
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$this->emit($scope, $method, $arguments);
}
}
/**
* Class EmittedException
*
* a dummy exception so we can check if an event is emitted
*
* @package Test\Hooks
*/
class EmittedException extends \Exception {
}
class BasicEmitterTest extends \Test\TestCase {
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/**
* @var \OC\Hooks\Emitter $emitter
*/
protected $emitter;
protected function setUp(): void {
parent::setUp();
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$this->emitter = new DummyEmitter();
}
public function nonStaticCallBack() {
throw new EmittedException;
}
public static function staticCallBack() {
throw new EmittedException;
}
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public function testAnonymousFunction() {
$this->expectException(\Test\Hooks\EmittedException::class);
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$this->emitter->listen('Test', 'test', function () {
throw new EmittedException;
});
$this->emitter->emitEvent('Test', 'test');
}
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public function testStaticCallback() {
$this->expectException(\Test\Hooks\EmittedException::class);
$this->emitter->listen('Test', 'test', ['\Test\Hooks\BasicEmitterTest', 'staticCallBack']);
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$this->emitter->emitEvent('Test', 'test');
}
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public function testNonStaticCallback() {
$this->expectException(\Test\Hooks\EmittedException::class);
$this->emitter->listen('Test', 'test', [$this, 'nonStaticCallBack']);
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$this->emitter->emitEvent('Test', 'test');
}
public function testOnlyCallOnce() {
$count = 0;
$listener = function () use (&$count) {
$count++;
};
$this->emitter->listen('Test', 'test', $listener);
$this->emitter->listen('Test', 'test', $listener);
$this->emitter->emitEvent('Test', 'test');
$this->assertEquals(1, $count, 'Listener called an invalid number of times (' . $count . ') expected 1');
}
public function testDifferentMethods() {
$count = 0;
$listener = function () use (&$count) {
$count++;
};
$this->emitter->listen('Test', 'test', $listener);
$this->emitter->listen('Test', 'foo', $listener);
$this->emitter->emitEvent('Test', 'test');
$this->emitter->emitEvent('Test', 'foo');
$this->assertEquals(2, $count, 'Listener called an invalid number of times (' . $count . ') expected 2');
}
public function testDifferentScopes() {
$count = 0;
$listener = function () use (&$count) {
$count++;
};
$this->emitter->listen('Test', 'test', $listener);
$this->emitter->listen('Bar', 'test', $listener);
$this->emitter->emitEvent('Test', 'test');
$this->emitter->emitEvent('Bar', 'test');
$this->assertEquals(2, $count, 'Listener called an invalid number of times (' . $count . ') expected 2');
}
public function testDifferentCallbacks() {
$count = 0;
$listener1 = function () use (&$count) {
$count++;
};
$listener2 = function () use (&$count) {
$count++;
};
$this->emitter->listen('Test', 'test', $listener1);
$this->emitter->listen('Test', 'test', $listener2);
$this->emitter->emitEvent('Test', 'test');
$this->assertEquals(2, $count, 'Listener called an invalid number of times (' . $count . ') expected 2');
}
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public function testArguments() {
$this->expectException(\Test\Hooks\EmittedException::class);
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$this->emitter->listen('Test', 'test', function ($foo, $bar) {
if ($foo == 'foo' and $bar == 'bar') {
throw new EmittedException;
}
});
$this->emitter->emitEvent('Test', 'test', ['foo', 'bar']);
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}
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public function testNamedArguments() {
$this->expectException(\Test\Hooks\EmittedException::class);
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$this->emitter->listen('Test', 'test', function ($foo, $bar) {
if ($foo == 'foo' and $bar == 'bar') {
throw new EmittedException;
}
});
$this->emitter->emitEvent('Test', 'test', ['foo' => 'foo', 'bar' => 'bar']);
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}
public function testRemoveAllSpecified() {
$listener = function () {
throw new EmittedException;
};
$this->emitter->listen('Test', 'test', $listener);
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$this->emitter->removeListener('Test', 'test', $listener);
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$this->emitter->emitEvent('Test', 'test');
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$this->addToAssertionCount(1);
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}
public function testRemoveWildcardListener() {
$listener1 = function () {
throw new EmittedException;
};
$listener2 = function () {
throw new EmittedException;
};
$this->emitter->listen('Test', 'test', $listener1);
$this->emitter->listen('Test', 'test', $listener2);
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$this->emitter->removeListener('Test', 'test');
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$this->emitter->emitEvent('Test', 'test');
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$this->addToAssertionCount(1);
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}
public function testRemoveWildcardMethod() {
$listener = function () {
throw new EmittedException;
};
$this->emitter->listen('Test', 'test', $listener);
$this->emitter->listen('Test', 'foo', $listener);
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$this->emitter->removeListener('Test', null, $listener);
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$this->emitter->emitEvent('Test', 'test');
$this->emitter->emitEvent('Test', 'foo');
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$this->addToAssertionCount(1);
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}
public function testRemoveWildcardScope() {
$listener = function () {
throw new EmittedException;
};
$this->emitter->listen('Test', 'test', $listener);
$this->emitter->listen('Bar', 'test', $listener);
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$this->emitter->removeListener(null, 'test', $listener);
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$this->emitter->emitEvent('Test', 'test');
$this->emitter->emitEvent('Bar', 'test');
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$this->addToAssertionCount(1);
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}
public function testRemoveWildcardScopeAndMethod() {
$listener = function () {
throw new EmittedException;
};
$this->emitter->listen('Test', 'test', $listener);
$this->emitter->listen('Test', 'foo', $listener);
$this->emitter->listen('Bar', 'foo', $listener);
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$this->emitter->removeListener(null, null, $listener);
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$this->emitter->emitEvent('Test', 'test');
$this->emitter->emitEvent('Test', 'foo');
$this->emitter->emitEvent('Bar', 'foo');
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$this->addToAssertionCount(1);
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}
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public function testRemoveKeepOtherCallback() {
$this->expectException(\Test\Hooks\EmittedException::class);
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$listener1 = function () {
throw new EmittedException;
};
$listener2 = function () {
throw new EmittedException;
};
$this->emitter->listen('Test', 'test', $listener1);
$this->emitter->listen('Test', 'test', $listener2);
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$this->emitter->removeListener('Test', 'test', $listener1);
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$this->emitter->emitEvent('Test', 'test');
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$this->addToAssertionCount(1);
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}
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public function testRemoveKeepOtherMethod() {
$this->expectException(\Test\Hooks\EmittedException::class);
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$listener = function () {
throw new EmittedException;
};
$this->emitter->listen('Test', 'test', $listener);
$this->emitter->listen('Test', 'foo', $listener);
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$this->emitter->removeListener('Test', 'foo', $listener);
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$this->emitter->emitEvent('Test', 'test');
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$this->addToAssertionCount(1);
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}
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public function testRemoveKeepOtherScope() {
$this->expectException(\Test\Hooks\EmittedException::class);
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$listener = function () {
throw new EmittedException;
};
$this->emitter->listen('Test', 'test', $listener);
$this->emitter->listen('Bar', 'test', $listener);
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$this->emitter->removeListener('Bar', 'test', $listener);
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$this->emitter->emitEvent('Test', 'test');
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$this->addToAssertionCount(1);
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}
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public function testRemoveNonExistingName() {
$this->expectException(\Test\Hooks\EmittedException::class);
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$listener = function () {
throw new EmittedException;
};
$this->emitter->listen('Test', 'test', $listener);
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$this->emitter->removeListener('Bar', 'test', $listener);
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$this->emitter->emitEvent('Test', 'test');
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$this->addToAssertionCount(1);
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}
}