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GeneratorTest.php
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GeneratorTest.php
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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Framework\MockObject;
use function class_exists;
use function md5;
use function method_exists;
use function microtime;
use Countable;
use Exception;
use PHPUnit\Framework\TestCase;
use PHPUnit\TestFixture\AbstractTrait;
use PHPUnit\TestFixture\AnInterface;
use PHPUnit\TestFixture\AnInterfaceWithReturnType;
use PHPUnit\TestFixture\AnotherInterface;
use PHPUnit\TestFixture\ClassWithVariadicArgumentMethod;
use PHPUnit\TestFixture\ExceptionWithThrowable;
use PHPUnit\TestFixture\FinalClass;
use PHPUnit\TestFixture\InterfaceWithSemiReservedMethodName;
use PHPUnit\TestFixture\MockObject\AbstractMockTestClass;
use PHPUnit\TestFixture\MockObject\ReadonlyClass;
use PHPUnit\TestFixture\SingletonClass;
use RuntimeException;
use stdClass;
use Throwable;
/**
* @covers \PHPUnit\Framework\MockObject\Generator
*
* @uses \PHPUnit\Framework\MockObject\Builder\InvocationMocker
* @uses \PHPUnit\Framework\MockObject\Invocation
* @uses \PHPUnit\Framework\MockObject\InvocationHandler
* @uses \PHPUnit\Framework\MockObject\Matcher
* @uses \PHPUnit\Framework\MockObject\Rule\InvocationOrder
* @uses \PHPUnit\Framework\MockObject\Rule\InvokedCount
* @uses \PHPUnit\Framework\MockObject\Rule\MethodName
* @uses \PHPUnit\Framework\MockObject\Stub\ReturnStub
*
* @small
*/
final class GeneratorTest extends TestCase
{
/**
* @var Generator
*/
private $generator;
protected function setUp(): void
{
$this->generator = new Generator;
}
public function testGetMockThrowsExceptionWhenInvalidFunctionNameIsPassedInAsAFunctionToMock(): void
{
$this->expectException(InvalidMethodNameException::class);
$this->generator->getMock(stdClass::class, [0]);
}
public function testGetMockThrowsExceptionWithInvalidMethods(): void
{
$this->expectException(\PHPUnit\Framework\InvalidArgumentException::class);
$this->generator->getMock(stdClass::class, false);
}
public function testGetMockThrowsExceptionWithNonExistingClass(): void
{
$this->expectException(UnknownTypeException::class);
$this->assertFalse(class_exists('Tux'));
$this->generator->getMock('Tux', [], [], '', true, true, false, true, false, null, false);
}
public function testGetMockThrowsExceptionWithNonExistingClasses(): void
{
$this->expectException(UnknownTypeException::class);
$this->assertFalse(class_exists('Tux'));
$this->generator->getMock('Tux', [], [], '', true, true, false, true, false, null, false);
}
public function testGetMockThrowsExceptionWithExistingClassAsMockName(): void
{
$this->expectException(ClassAlreadyExistsException::class);
$this->generator->getMock(stdClass::class, [], [], RuntimeException::class);
}
public function testGetMockCanCreateNonExistingFunctions(): void
{
$mock = $this->generator->getMock(stdClass::class, ['testFunction']);
$this->assertTrue(method_exists($mock, 'testFunction'));
}
public function testGetMockGeneratorThrowsException(): void
{
$this->expectException(DuplicateMethodException::class);
$this->expectExceptionMessage('duplicates: "foo, bar, foo" (duplicate: "foo")');
$this->generator->getMock(stdClass::class, ['foo', 'bar', 'foo']);
}
public function testGetMockBlacklistedMethodNamesPhp7(): void
{
$mock = $this->generator->getMock(InterfaceWithSemiReservedMethodName::class);
$this->assertTrue(method_exists($mock, 'unset'));
$this->assertInstanceOf(InterfaceWithSemiReservedMethodName::class, $mock);
}
public function testGetMockForAbstractClassDoesNotFailWhenFakingInterfaces(): void
{
$mock = $this->generator->getMockForAbstractClass(Countable::class);
$this->assertTrue(method_exists($mock, 'count'));
}
public function testGetMockForAbstractClassStubbingAbstractClass(): void
{
$mock = $this->generator->getMockForAbstractClass(AbstractMockTestClass::class);
$this->assertTrue(method_exists($mock, 'doSomething'));
}
public function testGetMockForAbstractClassWithNonExistentMethods(): void
{
$mock = $this->generator->getMockForAbstractClass(
AbstractMockTestClass::class,
[],
'',
true,
true,
true,
['nonexistentMethod']
);
$this->assertTrue(method_exists($mock, 'nonexistentMethod'));
$this->assertTrue(method_exists($mock, 'doSomething'));
}
public function testGetMockForAbstractClassShouldCreateStubsOnlyForAbstractMethodWhenNoMethodsWereInformed(): void
{
$mock = $this->generator->getMockForAbstractClass(AbstractMockTestClass::class);
$mock->method('doSomething')
->willReturn('testing');
$this->assertEquals('testing', $mock->doSomething());
$this->assertEquals(1, $mock->returnAnything());
}
public function testGetMockForAbstractClassAbstractClassDoesNotExist(): void
{
$this->expectException(UnknownClassException::class);
$this->generator->getMockForAbstractClass('Tux');
}
public function testGetMockForTraitWithNonExistentMethodsAndNonAbstractMethods(): void
{
$mock = $this->generator->getMockForTrait(
AbstractTrait::class,
[],
'',
true,
true,
true,
['nonexistentMethod']
);
$this->assertTrue(method_exists($mock, 'nonexistentMethod'));
$this->assertTrue(method_exists($mock, 'doSomething'));
$this->assertTrue($mock->mockableMethod());
$this->assertTrue($mock->anotherMockableMethod());
}
public function testGetMockForTraitStubbingAbstractMethod(): void
{
$mock = $this->generator->getMockForTrait(AbstractTrait::class);
$this->assertTrue(method_exists($mock, 'doSomething'));
}
public function testGetMockForTraitWithNonExistantTrait(): void
{
$this->expectException(UnknownTraitException::class);
$mock = $this->generator->getMockForTrait('Tux');
}
public function testGetObjectForTraitWithNonExistantTrait(): void
{
$this->expectException(UnknownTraitException::class);
$mock = $this->generator->getObjectForTrait('Tux');
}
public function testGetMockClassMethodsForNonExistantClass(): void
{
$this->expectException(ReflectionException::class);
$mock = $this->generator->mockClassMethods('Tux', true, true);
}
public function testGetMockForSingletonWithReflectionSuccess(): void
{
$mock = $this->generator->getMock(SingletonClass::class, ['doSomething'], [], '', false);
$this->assertInstanceOf(SingletonClass::class, $mock);
}
public function testExceptionIsRaisedForMutuallyExclusiveOptions(): void
{
$this->expectException(OriginalConstructorInvocationRequiredException::class);
$this->generator->getMock(stdClass::class, [], [], '', false, true, true, true, true);
}
public function testCanImplementInterfacesThatHaveMethodsWithReturnTypes(): void
{
$stub = $this->generator->getMock(AnInterfaceWithReturnType::class);
$this->assertInstanceOf(AnInterfaceWithReturnType::class, $stub);
$this->assertInstanceOf(MockObject::class, $stub);
}
public function testCanConfigureMethodsForDoubleOfNonExistentClass(): void
{
$className = 'X' . md5(microtime());
$mock = $this->generator->getMock($className, ['someMethod']);
$this->assertInstanceOf($className, $mock);
}
public function testCanInvokeMethodsOfNonExistentClass(): void
{
$className = 'X' . md5(microtime());
$mock = $this->generator->getMock($className, ['someMethod']);
$mock->expects($this->once())->method('someMethod');
$this->assertNull($mock->someMethod());
}
public function testMockingOfExceptionWithThrowable(): void
{
$stub = $this->generator->getMock(ExceptionWithThrowable::class);
$this->assertInstanceOf(ExceptionWithThrowable::class, $stub);
$this->assertInstanceOf(Exception::class, $stub);
$this->assertInstanceOf(MockObject::class, $stub);
}
public function testMockingOfThrowable(): void
{
$stub = $this->generator->getMock(Throwable::class);
$this->assertInstanceOf(Throwable::class, $stub);
$this->assertInstanceOf(Exception::class, $stub);
$this->assertInstanceOf(MockObject::class, $stub);
}
public function testMockingOfThrowableConstructorArguments(): void
{
$mock = $this->generator->getMock(Throwable::class, null, ['It works']);
$this->assertSame('It works', $mock->getMessage());
}
public function testVariadicArgumentsArePassedToOriginalMethod(): void
{
/** @var ClassWithVariadicArgumentMethod|MockObject $mock */
$mock = $this->generator->getMock(
ClassWithVariadicArgumentMethod::class,
[],
[],
'',
true,
false,
true,
false,
true
);
$arguments = [1, 'foo', false];
$this->assertSame($arguments, $mock->foo(...$arguments));
}
public function testVariadicArgumentsArePassedToMockedMethod(): void
{
/** @var ClassWithVariadicArgumentMethod|MockObject $mock */
$mock = $this->createMock(ClassWithVariadicArgumentMethod::class);
$arguments = [1, 'foo', false];
$mock->expects($this->once())
->method('foo')
->with(...$arguments);
$mock->foo(...$arguments);
}
public function testGetClassMethodsWithNonExistingClass(): void
{
$this->expectException(ReflectionException::class);
$this->generator->getClassMethods('Tux');
}
public function testCannotMockFinalClass(): void
{
$this->expectException(ClassIsFinalException::class);
/* @noinspection ClassMockingCorrectnessInspection */
$this->createMock(FinalClass::class);
}
/**
* @requires PHP 8.2
*/
public function testCannotMockReadonlyClass(): void
{
$this->expectException(ClassIsReadonlyException::class);
/* @noinspection ClassMockingCorrectnessInspection */
$this->createMock(ReadonlyClass::class);
}
public function testCanDoubleIntersectionOfMultipleInterfaces(): void
{
$stub = $this->generator->getMockForInterfaces(
[
AnInterface::class,
AnotherInterface::class,
]
);
$this->assertInstanceOf(AnInterface::class, $stub);
$this->assertInstanceOf(AnotherInterface::class, $stub);
$stub->method('doSomething')->willReturn(true);
$stub->method('doSomethingElse')->willReturn(false);
$this->assertTrue($stub->doSomething());
$this->assertFalse($stub->doSomethingElse());
}
}