diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..de4a392
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/vendor
+/composer.lock
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..a46a97b
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,48 @@
+language: php
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7.0
+  - hhvm
+  - hhvm-nightly
+
+# run build against hhvm but allow them to fail
+# http://docs.travis-ci.com/user/build-configuration/#Rows-That-are-Allowed-To-Fail
+matrix:
+  fast_finish: true
+  allow_failures:
+    - php: hhvm-nightly
+    - php: 7.0
+
+# faster builds on new travis setup not using sudo
+sudo: false
+
+# cache vendor dirs
+cache:
+  directories:
+    - vendor
+    - $HOME/.composer/cache
+
+install:
+  - travis_retry composer self-update && composer --version
+  - travis_retry composer global require "fxp/composer-asset-plugin:1.0.0"
+  - export PATH="$HOME/.composer/vendor/bin:$PATH"
+  - travis_retry composer install --prefer-dist --no-interaction
+
+before_script:
+  - |
+    if [ $TRAVIS_PHP_VERSION = '5.6' ]; then
+      PHPUNIT_FLAGS="--coverage-clover=coverage.clover"
+    fi
+
+script:
+  - phpunit --verbose $PHPUNIT_FLAGS
+
+after_script:
+  - |
+    if [ $TRAVIS_PHP_VERSION = '5.6' ]; then
+      travis_retry wget https://scrutinizer-ci.com/ocular.phar
+      php ocular.phar code-coverage:upload --format=php-clover coverage.clover
+    fi
diff --git a/README.md b/README.md
index 27cc5dc..d647349 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,17 @@
 Twitter Bootstrap Extension for Yii 2
 =====================================
 
-This is the Twitter Bootstrap extension for Yii 2. It encapsulates [Bootstrap](http://getbootstrap.com/) components
+This is the Twitter Bootstrap extension for [Yii framework 2.0](http://www.yiiframework.com). It encapsulates [Bootstrap](http://getbootstrap.com/) components
 and plugins in terms of Yii widgets, and thus makes using Bootstrap components/plugins
 in Yii applications extremely easy.
 
 For license information check the [LICENSE](LICENSE.md)-file.
 
+[![Latest Stable Version](https://poser.pugx.org/yiisoft/yii2-bootstrap/v/stable.png)](https://packagist.org/packages/yiisoft/yii2-bootstrap)
+[![Total Downloads](https://poser.pugx.org/yiisoft/yii2-bootstrap/downloads.png)](https://packagist.org/packages/yiisoft/yii2-bootstrap)
+[![Build Status](https://travis-ci.org/yiisoft/yii2-bootstrap.svg?branch=master)](https://travis-ci.org/yiisoft/yii2-bootstrap)
+
+
 Installation
 ------------
 
diff --git a/composer.json b/composer.json
index 4a5da0d..fde1a87 100644
--- a/composer.json
+++ b/composer.json
@@ -29,6 +29,10 @@
     "extra": {
         "branch-alias": {
             "dev-master": "2.0.x-dev"
+        },
+        "asset-installer-paths": {
+            "npm-asset-library": "vendor/npm",
+            "bower-asset-library": "vendor/bower"
         }
     }
 }
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
new file mode 100644
index 0000000..3a3db9f
--- /dev/null
+++ b/phpunit.xml.dist
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<phpunit bootstrap="./tests/bootstrap.php"
+		colors="true"
+		convertErrorsToExceptions="true"
+		convertNoticesToExceptions="true"
+		convertWarningsToExceptions="true"
+		stopOnFailure="false">
+		<testsuites>
+			<testsuite name="Test Suite">
+				<directory>./tests</directory>
+			</testsuite>
+		</testsuites>
+</phpunit>
diff --git a/tests/ButtonDropdownTest.php b/tests/ButtonDropdownTest.php
new file mode 100644
index 0000000..8b12dc0
--- /dev/null
+++ b/tests/ButtonDropdownTest.php
@@ -0,0 +1,31 @@
+<?php
+namespace yiiunit\extensions\bootstrap;
+
+use yii\bootstrap\ButtonDropdown;
+
+/**
+ * @group bootstrap
+ */
+class ButtonDropdownTest extends TestCase
+{
+    public function testContainerOptions()
+    {
+        $containerClass = "dropup";
+
+        ButtonDropdown::$counter = 0;
+        $out = ButtonDropdown::widget([
+            'containerOptions' => [
+                'class' => $containerClass,
+            ],
+            'label' => 'Action',
+            'dropdown' => [
+                'items' => [
+                    ['label' => 'DropdownA', 'url' => '/'],
+                    ['label' => 'DropdownB', 'url' => '#'],
+                ],
+            ],
+        ]);
+
+        $this->assertContains("$containerClass btn-group", $out);
+    }
+}
diff --git a/tests/CollapseTest.php b/tests/CollapseTest.php
new file mode 100644
index 0000000..30bdbec
--- /dev/null
+++ b/tests/CollapseTest.php
@@ -0,0 +1,74 @@
+<?php
+namespace yiiunit\extensions\bootstrap;
+
+use yii\bootstrap\Collapse;
+
+/**
+ * @group bootstrap
+ */
+class CollapseTest extends TestCase
+{
+    public function testRender()
+    {
+        Collapse::$counter = 0;
+        $output = Collapse::widget([
+            'items' => [
+                [
+                    'label' => 'Collapsible Group Item #1',
+                    'content' => 'test content1',
+                ],
+                [
+                    'label' => '<h1>Collapsible Group Item #2</h1>',
+                    'content' => '<h2>test content2</h2>',
+                    'contentOptions' => [
+                        'class' => 'testContentOptions2'
+                    ],
+                    'options' => [
+                        'class' => 'testClass2',
+                        'id' => 'testId2'
+                    ],
+                    'encode' => true
+                ],
+                [
+                    'label' => '<h1>Collapsible Group Item #3</h1>',
+                    'content' => '<h2>test content3</h2>',
+                    'contentOptions' => [
+                        'class' => 'testContentOptions3'
+                    ],
+                    'options' => [
+                        'class' => 'testClass3',
+                        'id' => 'testId3'
+                    ],
+                    'encode' => false
+                ],
+                [
+                    'label' => '<h1>Collapsible Group Item #4</h1>',
+                    'content' => '<h1>test content4</h1>',
+                ],
+            ]
+        ]);
+
+        $this->assertEqualsWithoutLE(<<<HTML
+<div id="w0" class="panel-group">
+<div class="panel panel-default"><div class="panel-heading"><h4 class="panel-title"><a class="collapse-toggle" href="#w0-collapse1" data-toggle="collapse" data-parent="#w0">Collapsible Group Item #1</a>
+</h4></div>
+<div id="w0-collapse1" class="panel-collapse collapse"><div class="panel-body">test content1</div>
+</div></div>
+<div id="testId2" class="testClass2 panel panel-default"><div class="panel-heading"><h4 class="panel-title"><a class="collapse-toggle" href="#w0-collapse2" data-toggle="collapse" data-parent="#w0">&lt;h1&gt;Collapsible Group Item #2&lt;/h1&gt;</a>
+</h4></div>
+<div id="w0-collapse2" class="testContentOptions2 panel-collapse collapse"><div class="panel-body"><h2>test content2</h2></div>
+</div></div>
+<div id="testId3" class="testClass3 panel panel-default"><div class="panel-heading"><h4 class="panel-title"><a class="collapse-toggle" href="#w0-collapse3" data-toggle="collapse" data-parent="#w0"><h1>Collapsible Group Item #3</h1></a>
+</h4></div>
+<div id="w0-collapse3" class="testContentOptions3 panel-collapse collapse"><div class="panel-body"><h2>test content3</h2></div>
+</div></div>
+<div class="panel panel-default"><div class="panel-heading"><h4 class="panel-title"><a class="collapse-toggle" href="#w0-collapse4" data-toggle="collapse" data-parent="#w0">&lt;h1&gt;Collapsible Group Item #4&lt;/h1&gt;</a>
+</h4></div>
+<div id="w0-collapse4" class="panel-collapse collapse"><div class="panel-body"><h1>test content4</h1></div>
+</div></div>
+</div>
+
+HTML
+        , $output);
+    }
+}
diff --git a/tests/DropdownTest.php b/tests/DropdownTest.php
new file mode 100644
index 0000000..ef284e6
--- /dev/null
+++ b/tests/DropdownTest.php
@@ -0,0 +1,50 @@
+<?php
+namespace yiiunit\extensions\bootstrap;
+
+use yii\bootstrap\Dropdown;
+
+/**
+ * Tests for Dropdown widget
+ *
+ * @group bootstrap
+ */
+class DropdownTest extends TestCase
+{
+    public function testIds()
+    {
+        Dropdown::$counter = 0;
+        $out = Dropdown::widget(
+            [
+                'items' => [
+                    [
+                        'label' => 'Page1',
+                        'content' => 'Page1',
+                    ],
+                    [
+                        'label' => 'Dropdown1',
+                        'items' => [
+                            ['label' => 'Page2', 'content' => 'Page2'],
+                            ['label' => 'Page3', 'content' => 'Page3'],
+                        ]
+                    ],
+                    [
+                        'label' => 'Dropdown2',
+                        'visible' => false,
+                        'items' => [
+                            ['label' => 'Page4', 'content' => 'Page4'],
+                            ['label' => 'Page5', 'content' => 'Page5'],
+                        ]
+                    ]
+                ]
+            ]
+        );
+
+        $expected = <<<EXPECTED
+<ul id="w0" class="dropdown-menu"><li class="dropdown-header">Page1</li>
+<li class="dropdown-submenu"><a href="#" tabindex="-1">Dropdown1</a><ul class="dropdown-menu"><li class="dropdown-header">Page2</li>
+<li class="dropdown-header">Page3</li></ul></li></ul>
+EXPECTED;
+
+        $this->assertEqualsWithoutLE($expected, $out);
+    }
+}
diff --git a/tests/NavTest.php b/tests/NavTest.php
new file mode 100644
index 0000000..3fad720
--- /dev/null
+++ b/tests/NavTest.php
@@ -0,0 +1,50 @@
+<?php
+namespace yiiunit\extensions\bootstrap;
+
+use yii\bootstrap\Nav;
+
+/**
+ * Tests for Nav widget
+ *
+ * @group bootstrap
+ */
+class NavTest extends TestCase
+{
+    public function testIds()
+    {
+        Nav::$counter = 0;
+        $out = Nav::widget(
+            [
+                'items' => [
+                    [
+                        'label' => 'Page1',
+                        'content' => 'Page1',
+                    ],
+                    [
+                        'label' => 'Dropdown1',
+                        'items' => [
+                            ['label' => 'Page2', 'content' => 'Page2'],
+                            ['label' => 'Page3', 'content' => 'Page3'],
+                        ]
+                    ],
+                    [
+                        'label' => 'Dropdown2',
+                        'visible' => false,
+                        'items' => [
+                            ['label' => 'Page4', 'content' => 'Page4'],
+                            ['label' => 'Page5', 'content' => 'Page5'],
+                        ]
+                    ]
+                ]
+            ]
+        );
+
+        $expected = <<<EXPECTED
+<ul id="w0" class="nav"><li><a href="#">Page1</a></li>
+<li class="dropdown"><a class="dropdown-toggle" href="#" data-toggle="dropdown">Dropdown1 <b class="caret"></b></a><ul id="w1" class="dropdown-menu"><li class="dropdown-header">Page2</li>
+<li class="dropdown-header">Page3</li></ul></li></ul>
+EXPECTED;
+
+        $this->assertEqualsWithoutLE($expected, $out);
+    }
+}
diff --git a/tests/TabsTest.php b/tests/TabsTest.php
new file mode 100644
index 0000000..18e39c7
--- /dev/null
+++ b/tests/TabsTest.php
@@ -0,0 +1,74 @@
+<?php
+namespace yiiunit\extensions\bootstrap;
+
+use yii\bootstrap\Tabs;
+
+/**
+ * Tests for Tabs widget
+ *
+ * @group bootstrap
+ */
+class TabsTest extends TestCase
+{
+    /**
+     * Each tab should have a corresponding unique ID
+     *
+     * @see https://github.com/yiisoft/yii2/issues/6150
+     */
+    public function testIds()
+    {
+        Tabs::$counter = 0;
+        $out = Tabs::widget([
+            'items' => [
+                [
+                    'label' => 'Page1', 'content' => 'Page1',
+                ],
+                [
+                    'label' => 'Dropdown1',
+                    'items' => [
+                        ['label' => 'Page2', 'content' => 'Page2'],
+                        ['label' => 'Page3', 'content' => 'Page3'],
+                    ]
+                ],
+                [
+                    'label' => 'Dropdown2',
+                    'items' => [
+                        ['label' => 'Page4', 'content' => 'Page4'],
+                        ['label' => 'Page5', 'content' => 'Page5'],
+                    ]
+                ]
+            ]
+        ]);
+
+        $page1 = 'w0-tab0';
+        $page2 = 'w0-dd1-tab0';
+        $page3 = 'w0-dd1-tab1';
+        $page4 = 'w0-dd2-tab0';
+        $page5 = 'w0-dd2-tab1';
+
+        $shouldContain = [
+            'w0', // nav widget container
+                "#$page1", // Page1
+
+                'w1', // Dropdown1
+                    "$page2", // Page2
+                    "$page3", // Page3
+
+
+                'w2', // Dropdown2
+                    "#$page4", // Page4
+                    "#$page5", // Page5
+
+            // containers
+            "id=\"$page1\"",
+            "id=\"$page2\"",
+            "id=\"$page3\"",
+            "id=\"$page4\"",
+            "id=\"$page5\"",
+        ];
+
+        foreach ($shouldContain as $string) {
+            $this->assertContains($string, $out);
+        }
+    }
+}
diff --git a/tests/TestCase.php b/tests/TestCase.php
new file mode 100644
index 0000000..95cf330
--- /dev/null
+++ b/tests/TestCase.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace yiiunit\extensions\bootstrap;
+
+use yii\di\Container;
+use yii\helpers\ArrayHelper;
+use Yii;
+
+/**
+ * This is the base class for all yii framework unit tests.
+ */
+abstract class TestCase extends \PHPUnit_Framework_TestCase
+{
+    protected function setUp()
+    {
+        parent::setUp();
+        $this->mockWebApplication();
+    }
+
+    /**
+     * Clean up after test.
+     * By default the application created with [[mockApplication]] will be destroyed.
+     */
+    protected function tearDown()
+    {
+        parent::tearDown();
+        $this->destroyApplication();
+    }
+
+    /**
+     * Populates Yii::$app with a new application
+     * The application will be destroyed on tearDown() automatically.
+     * @param array $config The application configuration, if needed
+     * @param string $appClass name of the application class to create
+     */
+    protected function mockApplication($config = [], $appClass = '\yii\console\Application')
+    {
+        new $appClass(ArrayHelper::merge([
+            'id' => 'testapp',
+            'basePath' => __DIR__,
+            'vendorPath' => dirname(__DIR__) . '/vendor',
+        ], $config));
+    }
+
+    protected function mockWebApplication($config = [], $appClass = '\yii\web\Application')
+    {
+        new $appClass(ArrayHelper::merge([
+            'id' => 'testapp',
+            'basePath' => __DIR__,
+            'vendorPath' => dirname(__DIR__) . '/vendor',
+            'components' => [
+                'request' => [
+                    'cookieValidationKey' => 'wefJDF8sfdsfSDefwqdxj9oq',
+                    'scriptFile' => __DIR__ .'/index.php',
+                    'scriptUrl' => '/index.php',
+                ],
+            ]
+        ], $config));
+    }
+
+    /**
+     * Destroys application in Yii::$app by setting it to null.
+     */
+    protected function destroyApplication()
+    {
+        Yii::$app = null;
+        Yii::$container = new Container();
+    }
+
+    /**
+     * Asserting two strings equality ignoring line endings
+     *
+     * @param string $expected
+     * @param string $actual
+     */
+    public function assertEqualsWithoutLE($expected, $actual)
+    {
+        $expected = str_replace("\r\n", "\n", $expected);
+        $actual = str_replace("\r\n", "\n", $actual);
+
+        $this->assertEquals($expected, $actual);
+    }
+}
diff --git a/tests/assets/.gitignore b/tests/assets/.gitignore
new file mode 100644
index 0000000..c96a04f
--- /dev/null
+++ b/tests/assets/.gitignore
@@ -0,0 +1,2 @@
+*
+!.gitignore
\ No newline at end of file
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
new file mode 100644
index 0000000..0eb9a9b
--- /dev/null
+++ b/tests/bootstrap.php
@@ -0,0 +1,15 @@
+<?php
+
+// ensure we get report on all possible php errors
+error_reporting(-1);
+
+define('YII_ENABLE_ERROR_HANDLER', false);
+define('YII_DEBUG', true);
+$_SERVER['SCRIPT_NAME'] = '/' . __DIR__;
+$_SERVER['SCRIPT_FILENAME'] = __FILE__;
+
+require_once(__DIR__ . '/../vendor/autoload.php');
+require_once(__DIR__ . '/../vendor/yiisoft/yii2/Yii.php');
+
+Yii::setAlias('@yiiunit/extensions/bootstrap', __DIR__);
+Yii::setAlias('@yii/bootstrap', dirname(__DIR__));