<?php
/**
 * PHP Version 5.4
 *
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP(tm) Project
 * @since         CakePHP(tm) v 3.0.0
 * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
 */
namespace Cake\Test\TestCase\Database\Schema;

use Cake\Database\Schema\Table;
use Cake\TestSuite\TestCase;

/**
 * Test case for Table
 */
class TableTest extends TestCase {

/**
 * Test construction with columns
 *
 * @return void
 */
	public function testConstructWithColumns() {
		$columns = [
			'id' => [
				'type' => 'integer',
				'length' => 11,
			],
			'title' => [
				'type' => 'string',
				'length' => 255
			]
		];
		$table = new Table('articles', $columns);
		$this->assertEquals(['id', 'title'], $table->columns());
	}

/**
 * Test adding columns.
 *
 * @return void
 */
	public function testAddColumn() {
		$table = new Table('articles');
		$result = $table->addColumn('title', [
			'type' => 'string',
			'length' => 25,
			'null' => false
		]);
		$this->assertSame($table, $result);
		$this->assertEquals(['title'], $table->columns());

		$result = $table->addColumn('body', 'text');
		$this->assertSame($table, $result);
		$this->assertEquals(['title', 'body'], $table->columns());
	}

/**
 * Test columnType method
 *
 * @return void
 */
	public function testColumnType() {
		$table = new Table('articles');
		$table->addColumn('title', [
			'type' => 'string',
			'length' => 25,
			'null' => false
		]);
		$this->assertEquals('string', $table->columnType('title'));
		$this->assertNull($table->columnType('not there'));
	}

/**
 * Attribute keys should be filtered and have defaults set.
 *
 * @return void
 */
	public function testAddColumnFiltersAttributes() {
		$table = new Table('articles');
		$table->addColumn('title', [
			'type' => 'string'
		]);
		$result = $table->column('title');
		$expected = [
			'type' => 'string',
			'length' => null,
			'precision' => null,
			'default' => null,
			'null' => null,
			'fixed' => null,
			'comment' => null,
		];
		$this->assertEquals($expected, $result);

		$table->addColumn('author_id', [
			'type' => 'integer'
		]);
		$result = $table->column('author_id');
		$expected = [
			'type' => 'integer',
			'length' => null,
			'precision' => null,
			'default' => null,
			'null' => null,
			'unsigned' => null,
			'comment' => null,
			'autoIncrement' => null,
		];
		$this->assertEquals($expected, $result);

		$table->addColumn('amount', [
			'type' => 'decimal'
		]);
		$result = $table->column('amount');
		$expected = [
			'type' => 'decimal',
			'length' => null,
			'precision' => null,
			'default' => null,
			'null' => null,
			'unsigned' => null,
			'comment' => null,
		];
		$this->assertEquals($expected, $result);
	}

/**
 * Test adding an constraint.
 *
 * @return void
 */
	public function testAddConstraint() {
		$table = new Table('articles');
		$table->addColumn('id', [
			'type' => 'integer'
		]);
		$result = $table->addConstraint('primary', [
			'type' => 'primary',
			'columns' => ['id']
		]);
		$this->assertSame($result, $table);
		$this->assertEquals(['primary'], $table->constraints());
	}

/**
 * Dataprovider for invalid addConstraint calls.
 *
 * @return array
 */
	public static function addConstaintErrorProvider() {
		return [
			// No properties
			[[]],
			// Empty columns
			[['columns' => '']],
			[['columns' => []]],
			// Missing column
			[['columns' => ['derp']]],
			// Invalid type
			[['columns' => 'author_id', 'type' => 'derp']],
		];
	}
/**
 * Test that an exception is raised when constraints
 * are added for fields that do not exist.
 *
 * @dataProvider addConstaintErrorProvider
 * @expectedException Cake\Database\Exception
 * @return void
 */
	public function testAddConstraintError($props) {
		$table = new Table('articles');
		$table->addColumn('author_id', 'integer');
		$table->addConstraint('author_idx', $props);
	}

/**
 * Test adding an index.
 *
 * @return void
 */
	public function testAddIndex() {
		$table = new Table('articles');
		$table->addColumn('title', [
			'type' => 'string'
		]);
		$result = $table->addIndex('faster', [
			'type' => 'index',
			'columns' => ['title']
		]);
		$this->assertSame($result, $table);
		$this->assertEquals(['faster'], $table->indexes());
	}

/**
 * Dataprovider for invalid addIndex calls
 *
 * @return array
 */
	public static function addIndexErrorProvider() {
		return [
			// Empty
			[[]],
			// No columns
			[['columns' => '']],
			[['columns' => []]],
			// Missing column
			[['columns' => ['not_there']]],
			// Invalid type
			[['columns' => 'author_id', 'type' => 'derp']],
		];
	}

/**
 * Test that an exception is raised when indexes
 * are added for fields that do not exist.
 *
 * @dataProvider addIndexErrorProvider
 * @expectedException Cake\Database\Exception
 * @return void
 */
	public function testAddIndexError($props) {
		$table = new Table('articles');
		$table->addColumn('author_id', 'integer');
		$table->addIndex('author_idx', $props);
	}

/**
 * Test adding different kinds of indexes.
 *
 * @return void
 */
	public function testAddIndexTypes() {
		$table = new Table('articles');
		$table->addColumn('id', 'integer')
			->addColumn('title', 'string')
			->addColumn('author_id', 'integer');

		$table->addIndex('author_idx', [
				'columns' => ['author_id'],
				'type' => 'index'
			])->addIndex('texty', [
				'type' => 'fulltext',
				'columns' => ['title']
			]);

		$this->assertEquals(
			['author_idx', 'texty'],
			$table->indexes()
		);
	}

/**
 * Test getting the primary key.
 *
 * @return void
 */
	public function testPrimaryKey() {
		$table = new Table('articles');
		$table->addColumn('id', 'integer')
			->addColumn('title', 'string')
			->addColumn('author_id', 'integer')
			->addConstraint('author_idx', [
				'columns' => ['author_id'],
				'type' => 'unique'
			])->addConstraint('primary', [
				'type' => 'primary',
				'columns' => ['id']
			]);
		$this->assertEquals(['id'], $table->primaryKey());
	}

/**
 * Test the options method.
 *
 * @return void
 */
	public function testOptions() {
		$table = new Table('articles');
		$options = [
			'engine' => 'InnoDB'
		];
		$return = $table->options($options);
		$this->assertInstanceOf('Cake\Database\Schema\Table', $return);
		$this->assertEquals($options, $table->options());
	}

/**
 * Add a basic foreign key constraint.
 *
 * @return void
 */
	public function testAddConstraintForeignKey() {
		$table = new Table('articles');
		$table->addColumn('author_id', 'integer')
			->addConstraint('author_id_idx', [
				'type' => Table::CONSTRAINT_FOREIGN,
				'columns' => ['author_id'],
				'references' => ['authors', 'id'],
				'update' => 'cascade',
				'delete' => 'cascade',
			]);
		$this->assertEquals(['author_id_idx'], $table->constraints());
	}

/**
 * Provider for exceptionally bad foreign key data.
 *
 * @return array
 */
	public static function badForeignKeyProvider() {
		return [
			'references is bad' => [[
				'type' => Table::CONSTRAINT_FOREIGN,
				'columns' => ['author_id'],
				'references' => ['authors'],
				'delete' => 'derp',
			]],
			'bad update value' => [[
				'type' => Table::CONSTRAINT_FOREIGN,
				'columns' => ['author_id'],
				'references' => ['authors', 'id'],
				'update' => 'derp',
			]],
			'bad delete value' => [[
				'type' => Table::CONSTRAINT_FOREIGN,
				'columns' => ['author_id'],
				'references' => ['authors', 'id'],
				'delete' => 'derp',
			]],
		];
	}

/**
 * Add a foreign key constraint with bad data
 *
 * @dataProvider badForeignKeyProvider
 * @expectedException Cake\Database\Exception
 * @return void
 */
	public function testAddConstraintForeignKeyBadData($data) {
		$table = new Table('articles');
		$table->addColumn('author_id', 'integer')
			->addConstraint('author_id_idx', $data);
	}

}