ThemingDefaults append cacheBusterCounter to logo URL by default

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

apps/theming/lib/ThemingDefaults.php

 			$logoExists = false;
 		}
 
+		$cacheBusterCounter = $this->config->getAppValue('theming', 'cachebuster', '0');
+
 		if(!$logo || !$logoExists) {
-			return $this->urlGenerator->imagePath('core','logo.svg');
+			return $this->urlGenerator->imagePath('core','logo.svg') . '?v=' . $cacheBusterCounter;
 		}
 
-		return $this->urlGenerator->linkToRoute('theming.Theming.getLogo');
+		return $this->urlGenerator->linkToRoute('theming.Theming.getLogo') . '?v=' . $cacheBusterCounter;
 	}
 
 	/**
 		return $value;
 	}
 
-	/**
-	 * Gets the current cache buster count
-	 *
-	 * @return string
-	 */
-	public function getCacheBusterCounter() {
-		return $this->config->getAppValue('theming', 'cachebuster', '0');
-	}
-
 	/**
 	 * Increases the cache buster key
 	 */

apps/theming/tests/ThemingDefaultsTest.php

 
 	public function testGetLogoDefault() {
 		$this->config
-			->expects($this->once())
+			->expects($this->at(0))
 			->method('getAppValue')
 			->with('theming', 'logoMime')
 			->willReturn('');
+		$this->config
+			->expects($this->at(1))
+			->method('getAppValue')
+			->with('theming', 'cachebuster', '0')
+			->willReturn('0');
 		$this->appData
 			->expects($this->once())
 			->method('getFolder')
 			->with('images')
 			->willThrowException(new \Exception());
-		$expected = $this->urlGenerator->imagePath('core','logo.svg');
+		$expected = $this->urlGenerator->imagePath('core','logo.svg') . '?v=0';
 		$this->assertEquals($expected, $this->template->getLogo());
 	}
 
 	public function testGetLogoCustom() {
 		$this->config
-			->expects($this->once())
+			->expects($this->at(0))
 			->method('getAppValue')
 			->with('theming', 'logoMime')
 			->willReturn('image/svg+xml');
+		$this->config
+			->expects($this->at(1))
+			->method('getAppValue')
+			->with('theming', 'cachebuster', '0')
+			->willReturn('0');
 		$simpleFolder = $this->createMock(ISimpleFolder::class);
 		$this->appData
 			->expects($this->once())
 			->method('getFile')
 			->with('logo')
 			->willReturn('');
-		$expected = $this->urlGenerator->linkToRoute('theming.Theming.getLogo');
+		$expected = $this->urlGenerator->linkToRoute('theming.Theming.getLogo') . '?v=0';
 		$this->assertEquals($expected, $this->template->getLogo());
 	}
 }