add tests

.gitattributes

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+# Ignore all test and documentation for archive
+/.gitattributes     export-ignore
+/.gitignore         export-ignore
+/.scrutinizer.yml   export-ignore
+/.travis.yml        export-ignore
+/phpunit.xml.dist   export-ignore
+/tests              export-ignore
+/docs               export-ignore

.gitignore

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+# phpstorm project files
+.idea
+
+# netbeans project files
+nbproject
+
+# zend studio for eclipse project files
+.buildpath
+.project
+.settings
+
+# windows thumbnail cache
+Thumbs.db
+
+# composer vendor dir
+/vendor
+
+/composer.lock
+
+# composer itself is not needed
+composer.phar
+
+# Mac DS_Store Files
+.DS_Store
+
+# phpunit itself is not needed
+phpunit.phar
+# local phpunit config
+/phpunit.xml
+
+# local tests configuration
+/tests/data/config.local.php
+
+# runtime cache
+/tests/runtime

.travis.yml

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+language: php
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7.0
+  - hhvm
+
+# 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
+
+# faster builds on new travis setup not using sudo
+sudo: false
+
+# cache vendor dirs
+cache:
+  directories:
+    - $HOME/.composer/cache
+
+install:
+  - travis_retry composer self-update && composer --version
+  - travis_retry composer global require "fxp/composer-asset-plugin:~1.1.1"
+  - export PATH="$HOME/.composer/vendor/bin:$PATH"
+  - travis_retry composer install --prefer-dist --no-interaction
+
+script:
+  - phpunit --verbose $PHPUNIT_FLAGS

phpunit.xml.dist

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+<?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="Yii2tech Test Suite">
+				<directory>./tests</directory>
+			</testsuite>
+		</testsuites>
+</phpunit>

tests/EnumTest.php

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+<?php
+
+namespace yii2mod\enum\tests;
+
+use yii2mod\enum\tests\data\BooleanEnum;
+
+/**
+ * Class EnumTest
+ * @package yii2mod\enum\tests
+ */
+class EnumTest extends TestCase
+{
+    public function testEnumMethods()
+    {
+        $this->assertEquals([1 => 'YES', 0 => 'NO'], BooleanEnum::getConstantsByValue());
+        $this->assertEquals(['YES' => 1, 'NO' => 0], BooleanEnum::getConstantsByName());
+        $this->assertEquals([1 => 'Yes', 0 => 'No'], BooleanEnum::listData());
+        $this->assertEquals('Yes', BooleanEnum::getLabel(1));
+        $this->assertEquals('1', BooleanEnum::getValueByName('Yes'));
+    }
+
+    public function testValidation()
+    {
+        $this->assertFalse(BooleanEnum::isValidName(1));
+        $this->assertTrue(BooleanEnum::isValidName('YES'));
+        $this->assertTrue(BooleanEnum::isValidValue(1));
+        $this->assertFalse(BooleanEnum::isValidValue('YES'));
+    }
+}

tests/TestCase.php

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+<?php
+
+namespace yii2mod\enum\tests;
+
+use yii\helpers\ArrayHelper;
+use Yii;
+
+/**
+ * This is the base class for all yii framework unit tests.
+ */
+class TestCase extends \PHPUnit_Framework_TestCase
+{
+    protected function setUp()
+    {
+        parent::setUp();
+        $this->mockApplication();
+    }
+
+    protected function 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' => $this->getVendorPath(),
+        ], $config));
+    }
+
+    /**
+     * @return string vendor path
+     */
+    protected function getVendorPath()
+    {
+        return dirname(__DIR__) . '/vendor';
+    }
+
+    /**
+     * Destroys application in Yii::$app by setting it to null.
+     */
+    protected function destroyApplication()
+    {
+        Yii::$app = null;
+    }
+}

tests/bootstrap.php

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+<?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');

tests/data/BooleanEnum.php

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+<?php
+
+namespace yii2mod\enum\tests\data;
+
+use yii2mod\enum\helpers\BaseEnum;
+
+/**
+ * Class BooleanEnum
+ * @package yii2mod\enum\tests\data
+ */
+class BooleanEnum extends BaseEnum
+{
+    const YES = 1;
+    const NO = 0;
+
+    /**
+     * @var string message category
+     * You can set your own message category for translate the values in the $list property
+     * Values in the $list property will be automatically translated in the function `listData()`
+     */
+    public static $messageCategory = 'app';
+
+    public static $list = [
+        self::YES => 'Yes',
+        self::NO => 'No'
+    ];
+}