Stub unit tests

Author: danielbachhuber

.gitignore

@@ -9,3 +9,4 @@ composer.lock
 phpunit.xml
 phpcs.xml
 .phpcs.xml
+.phpunit.result.cache

phpunit.xml.dist

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/4.8/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         backupGlobals="false"
+         beStrictAboutCoversAnnotation="true"
+         beStrictAboutOutputDuringTests="true"
+         beStrictAboutTestsThatDoNotTestAnything="true"
+         beStrictAboutTodoAnnotatedTests="true"
+         colors="true"
+         verbose="true">
+    <testsuites>
+        <testsuite name="default">
+            <directory suffix="Test.php">tests</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>

tests/PluginCommandTest.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace WP_CLI\Extension\Tests;
+
+use WP_CLI\Tests\TestCase;
+
+class PluginCommandTest extends TestCase {
+	public function test_sample() {
+		$this->assertTrue( true );
+	}
+}