diff --git a/tests/phpunit/ParseOnEditTest.php b/tests/phpunit/ExtensionTest.php
similarity index 94%
rename from tests/phpunit/ParseOnEditTest.php
rename to tests/phpunit/ExtensionTest.php
index 817ddfa..00b8ed8 100644
--- a/tests/phpunit/ParseOnEditTest.php
+++ b/tests/phpunit/ExtensionTest.php
@@ -3,7 +3,7 @@
  * @group bovender
  * @group Database
  */
-class ParseOnEditTest extends LinkTitles\TestCase {
+class ExtensionTest extends LinkTitles\TestCase {
 
   public function testParseOnEdit() {
     $this->setMwGlobals( [
diff --git a/tests/phpunit/LinkerTest.php b/tests/phpunit/LinkerTest.php
new file mode 100644
index 0000000..b47a86f
--- /dev/null
+++ b/tests/phpunit/LinkerTest.php
@@ -0,0 +1,89 @@
+<?php
+/**
+ * @group bovender
+ * @group Database
+ */
+class LinkTitlesLinkerTest extends LinkTitles\TestCase {
+  protected $title;
+
+  protected function setUp() {
+    $this->title = $this->insertPage( 'source page', 'This page is the test page' )['title'];
+    parent::setUp(); // call last to have the Targets object invalidated after inserting the page
+  }
+
+  /**
+   * @dataProvider provideLinkContentSmartModeData
+   */
+  public function testLinkContentSmartMode( $capitalLinks, $smartMode, $input, $expectedOutput) {
+    $this->setMwGlobals( 'wgCapitalLinks', $capitalLinks );
+    $config = new LinkTitles\Config();
+    $config->smartMode = $smartMode;
+    $linker = new LinkTitles\Linker( $config );
+    $this->assertSame( $expectedOutput, $linker->linkContent( $this->title, $input ));
+  }
+
+  public static function provideLinkContentSmartModeData() {
+    return [
+      [
+        true, // wgCapitalLinks
+        true, // smartMode
+        'With smart mode on and $wgCapitalLinks = true, this page should link to link target',
+        'With smart mode on and $wgCapitalLinks = true, this page should link to [[link target]]'
+      ],
+      [
+        true, // wgCapitalLinks
+        false, // smartMode
+        'With smart mode off and $wgCapitalLinks = true, this page should link to link target',
+        'With smart mode off and $wgCapitalLinks = true, this page should link to [[link target]]'
+      ],
+      [
+        true, // wgCapitalLinks
+        true, // smartMode
+        'With smart mode on and $wgCapitalLinks = true, this page should link to Link Target',
+        'With smart mode on and $wgCapitalLinks = true, this page should link to [[Link target|Link Target]]'
+      ],
+      [
+        true, // wgCapitalLinks
+        false, // smartMode
+        'With smart mode off and $wgCapitalLinks = true, this page should not link to Link Target',
+        'With smart mode off and $wgCapitalLinks = true, this page should not link to Link Target'
+      ],
+      [
+        false, // wgCapitalLinks
+        true, // smartMode
+        'With smart mode on and $wgCapitalLinks = false, this page should link to Link target',
+        'With smart mode on and $wgCapitalLinks = false, this page should link to [[Link target]]'
+      ],
+      [
+        false, // wgCapitalLinks
+        true, // smartMode
+        'With smart mode on and $wgCapitalLinks = false, this page should link to link target',
+        'With smart mode on and $wgCapitalLinks = false, this page should link to [[Link target|link target]]'
+      ],
+      [
+        false, // wgCapitalLinks
+        false, // smartMode
+        'With smart mode off and $wgCapitalLinks = false, this page should not link to link target',
+        'With smart mode off and $wgCapitalLinks = false, this page should not link to link target'
+      ],
+      [
+        false, // wgCapitalLinks
+        false, // smartMode
+        'With smart mode off and $wgCapitalLinks = false, this page should not link to Link target',
+        'With smart mode off and $wgCapitalLinks = false, this page should not link to [[Link target]]'
+      ],
+      [
+        false, // wgCapitalLinks
+        true, // smartMode
+        'With smart mode on and $wgCapitalLinks = false, this page should link to Link Target',
+        'With smart mode on and $wgCapitalLinks = false, this page should link to [[Link target|Link Target]]'
+      ],
+      [
+        false, // wgCapitalLinks
+        false, // smartMode
+        'With smart mode off and $wgCapitalLinks = false, this page should not link to Link Target',
+        'With smart mode off and $wgCapitalLinks = false, this page should not link to Link Target'
+      ],
+    ];
+  }
+}