1 files changed, 115 insertions, 0 deletions
diff --git a/www/wiki/tests/phpunit/includes/objectcache/ObjectCacheTest.php b/www/wiki/tests/phpunit/includes/objectcache/ObjectCacheTest.php
new file mode 100644
index 00000000..43188528
--- /dev/null
+++ b/www/wiki/tests/phpunit/includes/objectcache/ObjectCacheTest.php
@@ -0,0 +1,115 @@
+<?php
+
+class ObjectCacheTest extends MediaWikiTestCase {
+
+	protected function setUp() {
+		// Parent calls ObjectCache::clear() among other things
+		parent::setUp();
+
+		$this->setCacheConfig();
+		$this->setMwGlobals( [
+			'wgMainCacheType' => CACHE_NONE,
+			'wgMessageCacheType' => CACHE_NONE,
+			'wgParserCacheType' => CACHE_NONE,
+		] );
+	}
+
+	private function setCacheConfig( $arr = [] ) {
+		$defaults = [
+			CACHE_NONE => [ 'class' => EmptyBagOStuff::class ],
+			CACHE_DB => [ 'class' => SqlBagOStuff::class ],
+			CACHE_ANYTHING => [ 'factory' => 'ObjectCache::newAnything' ],
+			// Mock ACCEL with 'hash' as being installed.
+			// This makes tests deterministic regardless of APC.
+			CACHE_ACCEL => [ 'class' => HashBagOStuff::class ],
+			'hash' => [ 'class' => HashBagOStuff::class ],
+		];
+		$this->setMwGlobals( 'wgObjectCaches', $arr + $defaults );
+	}
+
+	/** @covers ObjectCache::newAnything */
+	public function testNewAnythingNothing() {
+		$this->assertInstanceOf(
+			SqlBagOStuff::class,
+			ObjectCache::newAnything( [] ),
+			'No available types. Fallback to DB'
+		);
+	}
+
+	/** @covers ObjectCache::newAnything */
+	public function testNewAnythingHash() {
+		$this->setMwGlobals( [
+			'wgMainCacheType' => 'hash'
+		] );
+
+		$this->assertInstanceOf(
+			HashBagOStuff::class,
+			ObjectCache::newAnything( [] ),
+			'Use an available type (hash)'
+		);
+	}
+
+	/** @covers ObjectCache::newAnything */
+	public function testNewAnythingAccel() {
+		$this->setMwGlobals( [
+			'wgMainCacheType' => CACHE_ACCEL
+		] );
+
+		$this->assertInstanceOf(
+			HashBagOStuff::class,
+			ObjectCache::newAnything( [] ),
+			'Use an available type (CACHE_ACCEL)'
+		);
+	}
+
+	/** @covers ObjectCache::newAnything */
+	public function testNewAnythingNoAccel() {
+		$this->setMwGlobals( [
+			'wgMainCacheType' => CACHE_ACCEL
+		] );
+
+		$this->setCacheConfig( [
+			// Mock APC not being installed (T160519, T147161)
+			CACHE_ACCEL => [ 'class' => EmptyBagOStuff::class ]
+		] );
+
+		$this->assertInstanceOf(
+			SqlBagOStuff::class,
+			ObjectCache::newAnything( [] ),
+			'Fallback to DB if available types fall back to Empty'
+		);
+	}
+
+	/** @covers ObjectCache::newAnything */
+	public function testNewAnythingNoAccelNoDb() {
+		$this->overrideMwServices(); // Ensures restore on tear down
+		MediaWiki\MediaWikiServices::disableStorageBackend();
+
+		$this->setMwGlobals( [
+			'wgMainCacheType' => CACHE_ACCEL
+		] );
+
+		$this->setCacheConfig( [
+			// Mock APC not being installed (T160519, T147161)
+			CACHE_ACCEL => [ 'class' => EmptyBagOStuff::class ]
+		] );
+
+		$this->assertInstanceOf(
+			EmptyBagOStuff::class,
+			ObjectCache::newAnything( [] ),
+			'Fallback to none if available types and DB are unavailable'
+		);
+	}
+
+	/** @covers ObjectCache::newAnything */
+	public function testNewAnythingNothingNoDb() {
+		$this->overrideMwServices();
+		MediaWiki\MediaWikiServices::disableStorageBackend();
+
+		$this->assertInstanceOf(
+			EmptyBagOStuff::class,
+			ObjectCache::newAnything( [] ),
+			'No available types or DB. Fallback to none.'
+		);
+	}
+}