function NextIdTest::testDbNextId

Tests that the sequences API works.

File

core/tests/Drupal/KernelTests/Core/Database/NextIdTest.php, line 30

Class

NextIdTest

Tests the sequences API.

Namespace

Code

public function testDbNextId() {
    $first = $this->connection
        ->nextId();
    $second = $this->connection
        ->nextId();
    // We can test for exact increase in here because we know there is no
    // other process operating on these tables -- normally we could only
    // expect $second > $first.
    $this->assertEquals($first + 1, $second, 'The second call from a sequence provides a number increased by one.');
    $result = $this->connection
        ->nextId(1000);
    $this->assertEquals(1001, $result, 'Sequence provides a larger number than the existing ID.');
}