Fhaculty\Graph\Tests\GraphTest::testCreateVerticesAtomic PHP Метод

    public function testCreateVerticesAtomic()
    {
        $graph = new Graph();
        // create vertices 10-19 (inclusive)
        $vertices = $graph->createVertices(range(10, 19));
        $this->assertCount(10, $vertices);
        try {
            $graph->createVertices(array(9, 19, 20));
            $this->fail('Should be unable to create vertices because of duplicate IDs');
        } catch (OverflowException $ignoreExpected) {
            $this->assertEquals(10, count($graph->getVertices()));
        }
        try {
            $graph->createVertices(array(20, 21, 21));
            $this->fail('Should be unable to create vertices because of duplicate IDs');
        } catch (InvalidArgumentException $ignoreExpected) {
            $this->assertEquals(10, count($graph->getVertices()));
        }
    }