class SubstrTest

class SubstrTest extends MigrateProcessTestCase {
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
    }
    
    /**
     * Tests Substr plugin based on providerTestSubstr() values.
     *
     * @dataProvider providerTestSubstr
     */
    public function testSubstr($start = NULL, $length = NULL, $expected = NULL) {
        $configuration['start'] = $start;
        $configuration['length'] = $length;
        $this->plugin = new Substr($configuration, 'map', []);
        $value = $this->plugin
            ->transform('Captain Janeway', $this->migrateExecutable, $this->row, 'destination_property');
        $this->assertSame($expected, $value);
    }
    
    /**
     * Data provider for testSubstr().
     */
    public function providerTestSubstr() {
        return [
            // Tests with valid start and length values.
[
                0,
                7,
                'Captain',
            ],
            // Tests with valid start > 0 and valid length.
[
                6,
                3,
                'n J',
            ],
            // Tests with valid start < 0 and valid length.
[
                -7,
                4,
                'Jane',
            ],
            // Tests without start value and valid length value.
[
                NULL,
                7,
                'Captain',
            ],
            // Tests with valid start value and no length value.
[
                1,
                NULL,
                'aptain Janeway',
            ],
            // Tests without both start and length values.
[
                NULL,
                NULL,
                'Captain Janeway',
            ],
        ];
    }
    
    /**
     * Tests invalid input type.
     */
    public function testSubstrFail() {
        $configuration = [];
        $this->plugin = new Substr($configuration, 'map', []);
        $this->expectException(MigrateException::class);
        $this->expectExceptionMessage('The input value must be a string.');
        $this->plugin
            ->transform([
            'Captain Janeway',
        ], $this->migrateExecutable, $this->row, 'destination_property');
    }
    
    /**
     * Tests that the start parameter is an integer.
     */
    public function testStartIsString() {
        $configuration['start'] = '2';
        $this->plugin = new Substr($configuration, 'map', []);
        $this->expectException(MigrateException::class);
        $this->expectExceptionMessage('The start position configuration value should be an integer. Omit this key to capture from the beginning of the string.');
        $this->plugin
            ->transform([
            'foo',
        ], $this->migrateExecutable, $this->row, 'destination_property');
    }
    
    /**
     * Tests that the length parameter is an integer.
     */
    public function testLengthIsString() {
        $configuration['length'] = '1';
        $this->plugin = new Substr($configuration, 'map', []);
        $this->expectException(MigrateException::class);
        $this->expectExceptionMessage('The character length configuration value should be an integer. Omit this key to capture from the start position to the end of the string.');
        $this->plugin
            ->transform([
            'foo',
        ], $this->migrateExecutable, $this->row, 'destination_property');
    }

}