Fix test coverage

Author: sebastianfeldmann

tests/unit/Console/IOUtilTest.php

@@ -57,4 +57,16 @@ public function testFormatHeadlineLong(): void
 
         $this->assertEquals($long, $headline);
     }
+
+    /**
+     * Tests IOUtil::formatHeadline
+     */
+    public function testFormatHeadlineShort(): void
+    {
+        $text     = str_repeat('x', 70) ;
+        $expected = '==== ' . $text . ' ====';
+        $headline = IOUtil::formatHeadline($text, 80);
+
+        $this->assertEquals($expected, $headline);
+    }
 }

tests/unit/Runner/InstallerTest.php

@@ -17,6 +17,7 @@
 use CaptainHook\App\Git\DummyRepo;
 use CaptainHook\App\Hook\Mockery as HookMockery;
 use CaptainHook\App\Mockery as CHMockery;
+use Exception;
 use org\bovigo\vfs\vfsStream;
 use PHPUnit\Framework\TestCase;
 use RuntimeException;
@@ -300,6 +301,23 @@ public function testSkipExisting(): void
         $runner->run();
     }
 
+    /**
+     * Tests Installer::writeHookFile
+     */
+    public function testOnlyEnabledAndHooksToHandle(): void
+    {
+        $this->expectException(Exception::class);
+
+        $io       = $this->createIOMock();
+        $config   = $this->createConfigMock();
+        $repo     = $this->createRepositoryMock();
+        $template = $this->createTemplateMock();
+
+        $runner = new Installer($io, $config, $repo, $template);
+        $runner->setHook('pre-commit');
+        $runner->setOnlyEnabled(true);
+    }
+
     /**
      * Tests Installer::writeHookFile
      */