64 lines
1.8 KiB
PHP
64 lines
1.8 KiB
PHP
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<?php
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namespace MediaWiki\Tests\Unit;
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use ReflectionClass;
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use ReflectionParameter;
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/**
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* Helper trait for instantiating MW service object for testing
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* with mocked dependencies.
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*
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* @package MediaWiki\Tests\Unit
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*/
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trait MockServiceDependenciesTrait {
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/**
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* Construct an new instance of $serviceClass with all constructor arguments
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* mocked. $parameterOverrides allows to provide some constructor argument.
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*
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* @param string $serviceClass
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* @param array $parameterOverrides [ argument name => argument value ]
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* @return mixed
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*/
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protected function newServiceInstance(
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string $serviceClass,
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array $parameterOverrides
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) {
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$params = [];
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$reflectionClass = new ReflectionClass( $serviceClass );
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$constructor = $reflectionClass->getConstructor();
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foreach ( $constructor->getParameters() as $parameter ) {
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$params[] = $parameterOverrides[$parameter->getName()]
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?? $this->getMockValueForParam( $parameter );
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}
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return new $serviceClass( ...$params );
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}
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/**
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* Override if this doesn't produce suitable values for one or more of the parameters to your
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* factory constructor or create method.
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*
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* @param ReflectionParameter $param One of the factory constructor's arguments
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* @return mixed A value to pass that will allow the object to be constructed successfully
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*/
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private function getMockValueForParam( ReflectionParameter $param ) {
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$pos = $param->getPosition();
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$type = $param->getType();
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if ( !$type || $type->getName() === 'string' ) {
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// Optimistically assume a string is okay
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return "some unlikely string $pos";
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}
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$type = $type->getName();
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if ( $type === 'array' || $type === 'iterable' ) {
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return [ "some unlikely string $pos" ];
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}
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if ( class_exists( $type ) || interface_exists( $type ) ) {
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return $this->createMock( $type );
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}
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$this->fail( "Unrecognized parameter type $type" );
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}
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}
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