README

Neo4j 图形数据库断言工具。

使用方法

在您的开发依赖中要求库

composer require --dev graphaware/neo4j-graphunit

创建您的 BaseTestCase，它将扩展 GraphAware\Neo4j\GraphUnit\Neo4jGraphDatabaseTestCase，并声明应返回 Client 实例的 getConnection 方法。

为了让事情变得简单，您可以直接调用父类的 createConnection 方法来引导连接。

namespace MyVendor\MyApp\Tests;

use GraphAware\Neo4j\GraphUnit\Neo4jGraphDatabaseTestCase;

abstract class MyAppBaseTestCase extends Neo4jGraphDatabaseTestCase
{
	public function getConnection()
	{
		return $this->createConnection('localhost', 7474, 'neo4j', 'password');
	}
}

断言

assertNodeWithLabelExist

public function testNodeWillExist()
	{
		$q = 'CREATE (n:TestNode)';
		$this->getConnection()->sendCypherQuery($q);
		
		$this->assertNodeWithLabelExist('TestNode');
	}

assertNodesWithLabelCount

public function testMultipleNodesAreCreated()
	{
		$q = 'CREATE (n:TestNode), (n2:TestNode);
		$this->getConnection()->sendCypherQuery($q);
		
		$this->assertNodesWithLabelCount(2, 'TestNode');
	}

assertNodesCount

public function testMultipleNodesAreCreated()
	{
		$q = 'CREATE (n:TestNode), (n2:TestNode);
		$this->getConnection()->sendCypherQuery($q);
		
		$this->assertNodesCount(2);
	}

assertNodeHasRelationship

public function testMultipleNodesAreCreated()
	{
		$q = 'CREATE (n:User {name: "john"}), (n2:User {name: "mary"})-[:WORKS_AT]->(:Company {name:"Acme"}) RETURN n2;
		$result = $this->getConnection()->sendCypherQuery($q);
		
		$this->assertNodeHasRelationship($result->get('n2'), 'WORKS_AT', 'OUT');
	}

重置数据库状态

您可以在 setUp 事件期间轻松重置数据库状态（删除所有节点、关系、模式索引和约束）

public function setUp()
{
	$this->resetDatabase();
}

如果您不想删除模式索引和约束，只需调用 emptyDatabase 方法

public function setUp()
{
	$this->emptyDatabase();
}

准备数据库状态

您只需传递一个 Cypher 模式即可准备您的数据库

public function setUp()
{
	$state = "(a:User {name:'Abed'})-[:WORKS_AT]->(:Company {name:'Vinelab'})
	(c:User {name:'Chris'})-[:WORKS_AT]->(:Company {name:'GraphAware'})
	(a)-[:FRIEND]->(c)";
	$this->prepareDatabase($state);
}

断言相同的图

库可以断言实际数据库中的图与您通过 Cypher 模式传递的图匹配，例如

public function testMyGraphIsGood()
{
	$this->assertSameGraph("(:User {name:'John'})-[:WORKS_AT]->(c:Company {name:'Acme'})");
}

// Returns true if the actual graph is identical, otherwise show errors in PHPUnit

//1) GraphAware\Neo4j\GraphUnit\Tests\Integration\SimpleIntegrationTest::testAssertSame
//Failed asserting that the expected graph is the same as the actual graph.

许可

此库根据 MIT 许可发布，请参阅库附带的相关 LICENSE 文件。

作者

Christophe Willemsen

Github: https://github.com/ikwattro

Twitter: https://twitter.com/ikwattro

致谢

GraphAware Limited