Make image URL absolute

To make it work within (nested) namespaces as well

Author: mdio

.travis.yml

@@ -2,22 +2,26 @@ language: php
 
 matrix:
   include:
+    - php: "7.3"
+      env: DOKUWIKI=master
+    - php: "7.3"
+      env: DOKUWIKI=release_stable_2018-04-22b
     - php: "7.2"
       env: DOKUWIKI=master
     - php: "7.2"
-      env: DOKUWIKI=release_stable_2018-04-22a
+      env: DOKUWIKI=release_stable_2018-04-22b
     - php: "7.1"
       env: DOKUWIKI=master
     - php: "7.1"
-      env: DOKUWIKI=release_stable_2018-04-22a
+      env: DOKUWIKI=release_stable_2018-04-22b
     - php: "7.0"
       env: DOKUWIKI=master
     - php: "7.0"
-      env: DOKUWIKI=release_stable_2018-04-22a
+      env: DOKUWIKI=release_stable_2018-04-22b
     - php: "5.6"
       env: DOKUWIKI=master
     - php: "5.6"
-      env: DOKUWIKI=release_stable_2018-04-22a
+      env: DOKUWIKI=release_stable_2018-04-22b
     - php: "5.6"
       env: DOKUWIKI=release_stable_2017-02-19e
     - php: "5.6"
@@ -27,6 +31,6 @@ matrix:
 
 before_install: wget https://raw.github.com/splitbrain/dokuwiki-travis/master/travis.sh
 install: sh travis.sh
-script: 
+script:
   - cd _test
-  - phpunit --group plugin_textrotate
+  - ./phpunit.phar --stderr --group plugin_textrotate

_test/syntax.test.php

@@ -16,8 +16,8 @@ public function setup() {
 
     public function test_basic_syntax() {
         $xhtml = p_wiki_xhtml('test:plugin_textrotate');
-        
-        $this->assertContains('<img class="textrotate" src="lib/images/tmp/', $xhtml);
+
+        $this->assertContains('<img class="textrotate" src="/lib/images/tmp/', $xhtml);
 
     }
 

syntax.php

@@ -108,8 +108,10 @@ function render($mode, Doku_Renderer $renderer, $data)
 
 				}
 				//".$renderer->_xmlEntities($opt)."
-				
-				$renderer->doc .="<img class='textrotate' src='$file' alt='adsf' >";
+
+                $renderer->doc .=<<<TAG
+<img class="textrotate" src="/$file" alt="adsf" />
+TAG;
 			}
 			//$renderer->doc .="</span>";
 			//$renderer->doc .="<div style='clear:both'></div>";