UserArrayFromResultTest.php

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<?php

class UserArrayFromResultTest extends MediaWikiTestCase {

    private function getMockResultWrapper( $row = null, $numRows = 1 ) {
        $resultWrapper = $this->getMockBuilder( 'ResultWrapper' )
            ->disableOriginalConstructor();

        $resultWrapper = $resultWrapper->getMock();
        $resultWrapper->expects( $this->atLeastOnce() )
            ->method( 'current' )
            ->will( $this->returnValue( $row ) );
        $resultWrapper->expects( $this->any() )
            ->method( 'numRows' )
            ->will( $this->returnValue( $numRows ) );

        return $resultWrapper;
    }

    private function getRowWithUsername( $username = 'fooUser' ) {
        $row = new stdClass();
        $row->user_name = $username;
        return $row;
    }

    private function getUserArrayFromResult( $resultWrapper ) {
        return new UserArrayFromResult( $resultWrapper );
    }

    public function testConstructionWithFalseRow() {
        $row = false;
        $resultWrapper = $this->getMockResultWrapper( $row );

        $object = $this->getUserArrayFromResult( $resultWrapper );

        $this->assertEquals( $resultWrapper, $object->res );
        $this->assertSame( 0, $object->key );
        $this->assertEquals( $row, $object->current );
    }

    public function testConstructionWithRow() {
        $username = 'addshore';
        $row = $this->getRowWithUsername( $username );
        $resultWrapper = $this->getMockResultWrapper( $row );

        $object = $this->getUserArrayFromResult( $resultWrapper );

        $this->assertEquals( $resultWrapper, $object->res );
        $this->assertSame( 0, $object->key );
        $this->assertInstanceOf( 'User', $object->current );
        $this->assertEquals( $username, $object->current->mName );
    }

    public static function provideNumberOfRows() {
        return array(
            array( 0 ),
            array( 1 ),
            array( 122 ),
        );
    }

    public function testCountWithVaryingValues( $numRows ) {
        $object = $this->getUserArrayFromResult( $this->getMockResultWrapper(
            $this->getRowWithUsername(),
            $numRows
        ) );
        $this->assertEquals( $numRows, $object->count() );
    }

    public function testCurrentAfterConstruction() {
        $username = 'addshore';
        $userRow = $this->getRowWithUsername( $username );
        $object = $this->getUserArrayFromResult( $this->getMockResultWrapper( $userRow ) );
        $this->assertInstanceOf( 'User', $object->current() );
        $this->assertEquals( $username, $object->current()->mName );
    }

    public function provideTestValid() {
        return array(
            array( $this->getRowWithUsername(), true ),
            array( false, false ),
        );
    }

    public function testValid( $input, $expected ) {
        $object = $this->getUserArrayFromResult( $this->getMockResultWrapper( $input ) );
        $this->assertEquals( $expected, $object->valid() );
    }

    //@todo unit test for key()
    //@todo unit test for next()
    //@todo unit test for rewind()
}