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phpDocumentor/Descriptor/ProjectAnalyzerTest.php (3 issues)

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<?php
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namespace phpDocumentor\Descriptor;
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use Mockery\Adapter\Phpunit\MockeryTestCase;
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use Mockery as m;
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/**
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 * Tests for the \phpDocumentor\Descriptor\ProjectAnalyzer class.
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 */
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class ProjectAnalyzerTest extends MockeryTestCase
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{
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    /** @var ProjectAnalyzer */
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    private $fixture;
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    protected function setUp()
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    {
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        $this->fixture = new ProjectAnalyzer();
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    }
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    /**
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     * @covers \phpDocumentor\Descriptor\ProjectAnalyzer::analyze
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     */
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    public function testFilesAreCounted()
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    {
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        // Arrange
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        $projectDescriptor = $this->givenAProjectMock();
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        $this->whenProjectDescriptorHasTheFollowingFiles($projectDescriptor, [1, 2, 3, 4]);
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        $this->whenProjectDescriptorHasTheFollowingElements($projectDescriptor, []);
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        $this->whenProjectHasTheFollowingChildrenOfRootNamespace($projectDescriptor, []);
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        // Act
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        $this->fixture->analyze($projectDescriptor);
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        // Assert
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        $this->assertAttributeSame(4, 'fileCount', $this->fixture);
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    }
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    /**
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     * @covers \phpDocumentor\Descriptor\ProjectAnalyzer::analyze
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     */
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    public function testIfTopLevelNamespacesAreCounted()
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    {
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        // Arrange
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        $projectDescriptor = $this->givenAProjectMock();
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        $this->whenProjectDescriptorHasTheFollowingFiles($projectDescriptor, []);
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        $this->whenProjectDescriptorHasTheFollowingElements($projectDescriptor, []);
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        $this->whenProjectHasTheFollowingChildrenOfRootNamespace($projectDescriptor, [1, 2, 3]);
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        // Act
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        $this->fixture->analyze($projectDescriptor);
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        // Assert
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        $this->assertAttributeSame(3, 'topLevelNamespaceCount', $this->fixture);
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    }
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    /**
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     * @covers \phpDocumentor\Descriptor\ProjectAnalyzer::analyze
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     * @covers \phpDocumentor\Descriptor\ProjectAnalyzer::findAllElements
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     * @covers \phpDocumentor\Descriptor\ProjectAnalyzer::incrementUnresolvedParentCounter
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     */
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    public function testIfUnresolvedClassesAreCounted()
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    {
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        // Arrange
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        $classDescriptor1 = $this->givenAClassWithParent('phpDocumentor\Descriptor\ClassDescriptor');
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        $projectDescriptor = $this->givenAProjectMock();
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        $this->whenProjectDescriptorHasTheFollowingFiles($projectDescriptor, []);
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        $this->whenProjectDescriptorHasTheFollowingElements(
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            $projectDescriptor,
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            [
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                'ds1' => $classDescriptor1,
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                'ds2' => $this->givenAClassWithParent($classDescriptor1),
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                'ds3' => $this->givenAnInterfaceWithParent('123'),
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            ]
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        );
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        $this->whenProjectHasTheFollowingChildrenOfRootNamespace($projectDescriptor, []);
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        // Act
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        $this->fixture->analyze($projectDescriptor);
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        // Assert
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        $this->assertAttributeSame(1, 'unresolvedParentClassesCount', $this->fixture);
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    }
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    /**
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     * @covers \phpDocumentor\Descriptor\ProjectAnalyzer::analyze
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     * @covers \phpDocumentor\Descriptor\ProjectAnalyzer::findAllElements
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     * @covers \phpDocumentor\Descriptor\ProjectAnalyzer::addElementToCounter
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     */
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    public function testIfVariousDescriptorTypesAreCounted()
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    {
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        // Arrange
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        $classDescriptor1 = $this->givenAClassWithParent('phpDocumentor\Descriptor\ClassDescriptor');
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        $projectDescriptor = $this->givenAProjectMock();
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        $this->whenProjectDescriptorHasTheFollowingFiles($projectDescriptor, []);
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        $this->whenProjectDescriptorHasTheFollowingElements(
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            $projectDescriptor,
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            [
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                'ds1' => $classDescriptor1,
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                'ds2' => $this->givenAClassWithParent($classDescriptor1),
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                'ds3' => $this->givenAnInterfaceWithParent('123'),
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            ]
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        );
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        $this->whenProjectHasTheFollowingChildrenOfRootNamespace($projectDescriptor, []);
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        // Act
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        $this->fixture->analyze($projectDescriptor);
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        // Assert
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        $this->assertAttributeSame(
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            [
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                'phpDocumentor\Descriptor\ClassDescriptor' => 2,
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                'phpDocumentor\Descriptor\InterfaceDescriptor' => 1,
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            ],
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            'descriptorCountByType',
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            $this->fixture
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        );
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    }
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    /**
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     * @covers \phpDocumentor\Descriptor\ProjectAnalyzer::__toString
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     */
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    public function testIfStringOutputContainsAllCounters()
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    {
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        // Arrange
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        $classDescriptor1 = $this->givenAClassWithParent('phpDocumentor\Descriptor\ClassDescriptor');
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        $projectDescriptor = $this->givenAProjectMock();
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        $this->whenProjectDescriptorHasTheFollowingFiles($projectDescriptor, [1, 2, 3, 4]);
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        $this->whenProjectDescriptorHasTheFollowingElements(
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            $projectDescriptor,
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            [
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                'ds1' => $classDescriptor1,
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                'ds2' => $this->givenAClassWithParent($classDescriptor1),
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                'ds3' => $this->givenAnInterfaceWithParent('123'),
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            ]
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        );
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        $this->whenProjectHasTheFollowingChildrenOfRootNamespace($projectDescriptor, [1, 2, 3]);
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        $this->fixture->analyze($projectDescriptor);
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        $expected = <<<TEXT
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In the ProjectDescriptor are:
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         4 files
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         3 top-level namespaces
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         1 unresolvable parent classes
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         2 phpDocumentor\Descriptor\ClassDescriptor elements
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         1 phpDocumentor\Descriptor\InterfaceDescriptor elements
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TEXT;
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        $expected = str_replace("\n", PHP_EOL, $expected);
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        // Act
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        $result = (string) $this->fixture;
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        // Assert
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        $this->assertSame($expected, $result);
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    }
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    /**
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     * Returns a class with the given parent set.
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     *
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     * @param string|DescriptorAbstract $parent
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     */
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    protected function givenAClassWithParent($parent): ClassDescriptor
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    {
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        $classDescriptor1 = new ClassDescriptor();
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        $classDescriptor1->setParent($parent);
0 ignored issues
show
It seems like $parent defined by parameter $parent on line 163 can also be of type string; however, phpDocumentor\Descriptor...Descriptor::setParent() does only seem to accept object<phpDocumentor\Des...tor\DescriptorAbstract>, maybe add an additional type check?

This check looks at variables that have been passed in as parameters and are passed out again to other methods.

If the outgoing method call has stricter type requirements than the method itself, an issue is raised.

An additional type check may prevent trouble.

Loading history...
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        return $classDescriptor1;
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    }
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    /**
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     * @param string $interfaceParent
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     */
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    protected function givenAnInterfaceWithParent($interfaceParent): InterfaceDescriptor
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    {
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        $classDescriptor3 = new InterfaceDescriptor();
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        $classDescriptor3->setParent($interfaceParent);
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        return $classDescriptor3;
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    }
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    /**
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     * Returns a mocked ProjectDescriptor object.
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     */
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    protected function givenAProjectMock(): m\MockInterface
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    {
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        return m::mock('phpDocumentor\Descriptor\ProjectDescriptor')->shouldIgnoreMissing();
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    }
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    /**
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     * Ensures that the ProjectDescriptor contains and returns the provided files.
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     */
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    protected function whenProjectDescriptorHasTheFollowingFiles(m\MockInterface $projectDescriptor, array $files)
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    {
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        $projectDescriptor->shouldReceive('getFiles')->andReturn($files);
0 ignored issues
show
The method andReturn does only exist in Mockery\ExpectationInterface, but not in Mockery\HigherOrderMessage.

It seems like the method you are trying to call exists only in some of the possible types.

Let’s take a look at an example:

class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}

Available Fixes

  1. Add an additional type-check:

    /**
     * @param A|B $x
     */
    function someFunction($x)
    {
        $x->foo();
    
        if ($x instanceof B) {
            $x->bar();
        }
    }
    
  2. Only allow a single type to be passed if the variable comes from a parameter:

    function someFunction(B $x) { /** ... */ }
    
Loading history...
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    }
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    /**
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     * Ensures that the ProjectDescriptor has an index 'elements' with the provided elements.
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     */
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    protected function whenProjectDescriptorHasTheFollowingElements(m\MockInterface $projectDescriptor, array $elements)
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    {
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        $projectDescriptor->shouldReceive('getIndexes->get')
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            ->with('elements', m::type('phpDocumentor\Descriptor\Collection'))
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            ->andReturn(new Collection($elements));
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    }
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    /**
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     * Ensures that the ProjectDescriptor has a root namespace with the provided array as children of that namespace.
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     */
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    protected function whenProjectHasTheFollowingChildrenOfRootNamespace(
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        m\MockInterface $projectDescriptor,
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        array $rootNamespaceChildren
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    ) {
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        $projectDescriptor->shouldReceive('getNamespace->getChildren')->andReturn(
0 ignored issues
show
The method andReturn does only exist in Mockery\ExpectationInterface, but not in Mockery\HigherOrderMessage.

It seems like the method you are trying to call exists only in some of the possible types.

Let’s take a look at an example:

class A
{
    public function foo() { }
}

class B extends A
{
    public function bar() { }
}

/**
 * @param A|B $x
 */
function someFunction($x)
{
    $x->foo(); // This call is fine as the method exists in A and B.
    $x->bar(); // This method only exists in B and might cause an error.
}

Available Fixes

  1. Add an additional type-check:

    /**
     * @param A|B $x
     */
    function someFunction($x)
    {
        $x->foo();
    
        if ($x instanceof B) {
            $x->bar();
        }
    }
    
  2. Only allow a single type to be passed if the variable comes from a parameter:

    function someFunction(B $x) { /** ... */ }
    
Loading history...
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            new Collection($rootNamespaceChildren)
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        );
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    }
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}
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