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|
<?php
namespace Wikimedia\Tests;
use MapCacheLRU;
use MediaWikiCoversValidator;
use PHPUnit\Framework\TestCase;
use UnexpectedValueException;
/**
* @group Cache
* @covers \MapCacheLRU
*/
class MapCacheLRUTest extends TestCase {
use MediaWikiCoversValidator;
public function testArrayConversion() {
$raw = [ 'd' => 4, 'c' => 3, 'b' => 2, 'a' => 1 ];
$cache = MapCacheLRU::newFromArray( $raw, 3 );
$this->assertEquals( 3, $cache->getMaxSize() );
$this->assertSame( true, $cache->has( 'a' ) );
$this->assertSame( true, $cache->has( 'b' ) );
$this->assertSame( true, $cache->has( 'c' ) );
$this->assertSame( 1, $cache->get( 'a' ) );
$this->assertSame( 2, $cache->get( 'b' ) );
$this->assertSame( 3, $cache->get( 'c' ) );
$this->assertSame(
[ 'a' => 1, 'b' => 2, 'c' => 3 ],
$cache->toArray()
);
$this->assertSame(
[ 'a', 'b', 'c' ],
$cache->getAllKeys()
);
$cache->clear( 'a' );
$this->assertSame(
[ 'b' => 2, 'c' => 3 ],
$cache->toArray()
);
$cache->clear();
$this->assertSame(
[],
$cache->toArray()
);
$cache = MapCacheLRU::newFromArray( [ 'd' => 4, 'c' => 3, 'b' => 2, 'a' => 1 ], 4 );
$cache->setMaxSize( 3 );
$this->assertSame(
[ 'c' => 3, 'b' => 2, 'a' => 1 ],
$cache->toArray()
);
}
public function testSerialize() {
$cache = new MapCacheLRU( 3 );
$cache->set( 'a', 1 );
$cache->set( 'b', 2 );
$cache->set( 'c', 3 );
$string = serialize( $cache );
$cache = unserialize( $string );
$this->assertSame(
[ 'a' => 1, 'b' => 2, 'c' => 3 ],
$cache->toArray(),
'entries are preserved'
);
$cache->set( 'd', 4 );
$this->assertSame(
[ 'b' => 2, 'c' => 3, 'd' => 4 ],
$cache->toArray(),
'maxKeys is preserved'
);
}
public function testGetWithSetCallback() {
$cache = new MapCacheLRU( 3 );
$i = 0;
$fn = static function () use ( &$i ) {
$i++;
return $i;
};
$this->assertSame( null, $cache->get( 'a' ), 'initial' );
$this->assertSame( 1, $cache->getWithSetCallback( 'a', $fn ), 'first gen' );
$this->assertSame( 1, $cache->getWithSetCallback( 'a', $fn ), 'getWithSet hit' );
$this->assertSame( 1, $cache->get( 'a' ), 'plain get hit' );
$cache->clear( 'a' );
$this->assertSame( 2, $cache->getWithSetCallback( 'a', $fn ), 'second gen' );
}
public function testMissing() {
$raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
$cache = MapCacheLRU::newFromArray( $raw, 3 );
$this->assertFalse( $cache->has( 'd' ) );
$this->assertNull( $cache->get( 'd' ) );
$this->assertNull( $cache->get( 'd', 0.0, null ) );
$this->assertFalse( $cache->get( 'd', 0.0, false ) );
}
public function testLRU() {
$raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
$cache = MapCacheLRU::newFromArray( $raw, 3 );
$this->assertSame( true, $cache->has( 'c' ) );
$this->assertSame(
[ 'a' => 1, 'b' => 2, 'c' => 3 ],
$cache->toArray()
);
$this->assertSame( 3, $cache->get( 'c' ) );
$this->assertSame(
[ 'a' => 1, 'b' => 2, 'c' => 3 ],
$cache->toArray()
);
$this->assertSame( 1, $cache->get( 'a' ) );
$this->assertSame(
[ 'b' => 2, 'c' => 3, 'a' => 1 ],
$cache->toArray()
);
$cache->set( 'a', 1 );
$this->assertSame(
[ 'b' => 2, 'c' => 3, 'a' => 1 ],
$cache->toArray()
);
$cache->set( 'b', 22 );
$this->assertSame(
[ 'c' => 3, 'a' => 1, 'b' => 22 ],
$cache->toArray()
);
$cache->set( 'd', 4 );
$this->assertSame(
[ 'a' => 1, 'b' => 22, 'd' => 4 ],
$cache->toArray()
);
$cache->set( 'e', 5, 0.33 );
$this->assertSame(
[ 'e' => 5, 'b' => 22, 'd' => 4 ],
$cache->toArray()
);
$cache->set( 'f', 6, 0.66 );
$this->assertSame(
[ 'b' => 22, 'f' => 6, 'd' => 4 ],
$cache->toArray()
);
$cache->set( 'g', 7, 0.90 );
$this->assertSame(
[ 'f' => 6, 'g' => 7, 'd' => 4 ],
$cache->toArray()
);
$cache->set( 'g', 7, 1.0 );
$this->assertSame(
[ 'f' => 6, 'd' => 4, 'g' => 7 ],
$cache->toArray()
);
}
public function testExpiry() {
$raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
$cache = MapCacheLRU::newFromArray( $raw, 3 );
$now = microtime( true );
$cache->setMockTime( $now );
$cache->set( 'd', 'xxx' );
$this->assertTrue( $cache->has( 'd', 30 ) );
$this->assertEquals( 'xxx', $cache->get( 'd' ) );
$now += 29;
$this->assertTrue( $cache->has( 'd', 30 ) );
$this->assertEquals( 'xxx', $cache->get( 'd' ) );
$this->assertEquals( 'xxx', $cache->get( 'd', 30 ) );
$now += 1.5;
$this->assertFalse( $cache->has( 'd', 30 ) );
$this->assertEquals( 'xxx', $cache->get( 'd' ) );
$this->assertNull( $cache->get( 'd', 30 ) );
}
public function testFields() {
$raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
$cache = MapCacheLRU::newFromArray( $raw, 3 );
$now = microtime( true );
$cache->setMockTime( $now );
$cache->setField( 'PMs', 'Tony Blair', 'Labour' );
$cache->setField( 'PMs', 'Margaret Thatcher', 'Tory' );
$this->assertTrue( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
$this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair' ) );
$this->assertTrue( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
$now += 29;
$this->assertTrue( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
$this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair' ) );
$this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair', 30 ) );
$now += 1.5;
$this->assertFalse( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
$this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair' ) );
$this->assertNull( $cache->getField( 'PMs', 'Tony Blair', 30 ) );
$this->assertEquals(
[ 'Tony Blair' => 'Labour', 'Margaret Thatcher' => 'Tory' ],
$cache->get( 'PMs' )
);
$cache->set( 'MPs', [
'Edwina Currie' => 1983,
'Neil Kinnock' => 1970
] );
$this->assertEquals(
[
'Edwina Currie' => 1983,
'Neil Kinnock' => 1970
],
$cache->get( 'MPs' )
);
$this->assertEquals( 1983, $cache->getField( 'MPs', 'Edwina Currie' ) );
$this->assertEquals( 1970, $cache->getField( 'MPs', 'Neil Kinnock' ) );
}
public static function provideInvalidKeys() {
yield [ 3.4 ];
yield [ false ];
}
/**
* @dataProvider provideInvalidKeys
*/
public function testHasInvalidKey( $key ) {
$cache = new MapCacheLRU( 3 );
$this->expectException( UnexpectedValueException::class );
$this->expectExceptionMessage( 'must be string or integer' );
$cache->has( $key );
}
public static function provideMakeKey() {
yield [ 'foo', 'foo' ];
yield [ 'foo:bar:4:baz:qu%3Aux%2520', 'foo', 'bar', 4, 'baz', 'qu:ux%20' ];
yield [ 'qu%3Aux%2520:4', 'qu:ux%20', 4 ];
}
/**
* @dataProvider provideMakeKey
*/
public function testMakeKey( $expected, ...$params ) {
$cache = new MapCacheLRU( 3 );
$this->assertSame( $expected, $cache->makeKey( ...$params ) );
}
/**
* @dataProvider provideInvalidKeys
*/
public function testGetInvalidKey( $key ) {
$cache = new MapCacheLRU( 3 );
$this->expectException( UnexpectedValueException::class );
$this->expectExceptionMessage( 'must be string or integer' );
$cache->get( $key );
}
/**
* @dataProvider provideInvalidKeys
*/
public function testSetInvalidKey( $key ) {
$cache = new MapCacheLRU( 3 );
$this->expectException( UnexpectedValueException::class );
$this->expectExceptionMessage( 'must be string or integer' );
$cache->set( $key, 'x' );
}
/**
* @dataProvider provideInvalidKeys
*/
public function testHasFieldInvalidKey( $field ) {
$cache = MapCacheLRU::newFromArray( [ 'key' => [] ], 3 );
$this->expectException( UnexpectedValueException::class );
$this->expectExceptionMessage( 'must be string or integer' );
$cache->hasField( 'key', $field );
}
/**
* @dataProvider provideInvalidKeys
*/
public function testGetFieldInvalidKey( $field ) {
$cache = MapCacheLRU::newFromArray( [ 'key' => [] ], 3 );
$this->expectException( UnexpectedValueException::class );
$this->expectExceptionMessage( 'must be string or integer' );
$cache->getField( 'key', $field );
}
/**
* @dataProvider provideInvalidKeys
*/
public function testSetFieldInvalidKey( $field ) {
$cache = new MapCacheLRU( 3 );
$this->expectException( UnexpectedValueException::class );
$this->expectExceptionMessage( 'must be string or integer' );
$cache->setField( 'key', $field, 'x' );
}
}
|
