Fix tests

Signed-off-by: Julius Härtl <jus@bitgrid.net>

lib/private/Template/IconsCacher.php

@@ -112,7 +112,10 @@ class IconsCacher {
 		foreach ($icons as $icon => $url) {
 			$list .= "--$icon: url('$url');";
 			list($location,$color) = $this->parseUrl($url);
-			$svg = file_get_contents($location);
+			$svg = false;
+			if ($location !== '') {
+				$svg = file_get_contents($location);
+			}
 			if ($svg === false) {
 				$this->logger->debug('Failed to get icon file ' . $location);
 				$data .= "--$icon: url('$url');";

tests/lib/Template/IconsCacherTest.php

@@ -104,7 +104,7 @@ class IconsCacherTest extends \Test\TestCase {
 	public function testSetIconsFromValidCss() {
 		$css = "
 			icon.test {
-				--icon-test: url('/index.php/svg/core/actions/add/000?v=1');
+				--icon-test: url('/index.php/svg/core/actions/add?color=000&v=1');
 				background-image: var(--icon-test);
 			}
 		";
@@ -127,7 +127,7 @@ class IconsCacherTest extends \Test\TestCase {
 	public function testSetIconsFromValidCssMultipleTimes() {
 		$css = "
 			icon.test {
-				--icon-test: url('/index.php/svg/core/actions/add/000?v=1');
+				--icon-test: url('/index.php/svg/core/actions/add?color=000&v=1');
 				background-image: var(--icon-test);
 			}
 		";