Query lang.limit

Testing Is Documentation

tests/Database/Query/LimitTest.php

Uses

<?php

use Tests\Database\DatabaseTestCase as TestCase;

limit 限制条数

public function testBaseUse(): void
{
    $connect = $this->createDatabaseConnectMock();

    $sql = <<<'eot'
        [
            "SELECT `test_query`.* FROM `test_query` LIMIT 5,10",
            [],
            false
        ]
        eot;

    $this->assertSame(
        $sql,
        $this->varJson(
            $connect
                ->table('test_query')
                ->limit(5, 10)
                ->find(null, true)
        )
    );
}

指示仅查询第一个符合条件的记录

public function testOne(): void
{
    $connect = $this->createDatabaseConnectMock();

    $sql = <<<'eot'
        [
            "SELECT `test_query`.* FROM `test_query` LIMIT 1",
            [],
            false
        ]
        eot;

    $this->assertSame(
        $sql,
        $this->varJson(
            $connect
                ->table('test_query')
                ->one()
                ->find(null, true),
            1
        )
    );
}

指示查询所有符合条件的记录

public function testAll(): void
{
    $connect = $this->createDatabaseConnectMock();

    $sql = <<<'eot'
        [
            "SELECT `test_query`.* FROM `test_query`",
            [],
            false
        ]
        eot;

    $this->assertSame(
        $sql,
        $this->varJson(
            $connect
                ->table('test_query')
                ->all()
                ->find(null, true),
            2
        )
    );
}

查询几条记录

public function testTop(): void
{
    $connect = $this->createDatabaseConnectMock();

    $sql = <<<'eot'
        [
            "SELECT `test_query`.* FROM `test_query` LIMIT 0,15",
            [],
            false
        ]
        eot;

    $this->assertSame(
        $sql,
        $this->varJson(
            $connect
                ->table('test_query')
                ->top(15)
                ->find(null, true),
            3
        )
    );
}