Improved search: combine AND, exact terms and exclude search.

tests/LinkDBTest.php

@@ -278,6 +278,7 @@ class LinkDBTest extends PHPUnit_Framework_TestCase
                 'stallman' => 1,
                 'free' => 1,
                 '-exclude' => 1,
+                'stuff' => 2,
             ),
             self::$publicLinkDB->allTags()
         );

tests/LinkFilterTest.php

@@ -27,7 +27,7 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
     public function testFilter()
     {
         $this->assertEquals(
-            6,
+            7,
             count(self::$linkFilter->filter('', ''))
         );
 
@@ -222,7 +222,7 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
         );
         
         $this->assertEquals(
-            2,
+            3,
             count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, '"free software"'))
         );        
     }
@@ -250,11 +250,43 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
     public function testFilterFullTextMixed()
     {
         $this->assertEquals(
-            2,
+            3,
             count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, 'free software'))
         );
     }
 
+    /**
+     * Full-text search - test exclusion with '-'.
+     */
+    public function testExcludeSearch()
+    {
+        $this->assertEquals(
+            1,
+            count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, 'free -software'))
+        );
+
+        $this->assertEquals(
+            7,
+            count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, '-software'))
+        );
+    }
+
+    /**
+     * Full-text search - test AND, exact terms and exclusion combined.
+     */
+    public function testMultiSearch()
+    {
+        $this->assertEquals(
+            2,
+            count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, '"Free Software " stallman "read this"'))
+        );
+
+        $this->assertEquals(
+            1,
+            count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, '"free software " stallman "read this" -beard'))
+        );
+    }
+
     /**
      * Tag search with exclusion.
      */
@@ -266,7 +298,7 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
         );
 
         $this->assertEquals(
-            5,
+            6,
             count(self::$linkFilter->filter(LinkFilter::$FILTER_TAG, '-free'))
         );
     }

tests/utils/ReferenceLinkDB.php

@@ -16,12 +16,21 @@ class ReferenceLinkDB
         $this->addLink(
             'Free as in Freedom 2.0',
             'https://static.fsf.org/nosvn/faif-2.0.pdf',
-            'Richard Stallman and the Free Software Revolution',
+            'Richard Stallman and the Free Software Revolution. Read this.',
             0,
             '20150310_114633',
             'free gnu software stallman -exclude'
         );
 
+        $this->addLink(
+            'Note:',
+            'local',
+            'Stallman has a beard and is part of the Free Software Foundation (or not). Seriously, read this.',
+            0,
+            '20150310_114651',
+            ''
+        );
+
         $this->addLink(
             'MediaGoblin',
             'http://mediagoblin.org/',