Update documentation to PHPUnit-6 API

Author: malkusch

README.md

@@ -26,12 +26,10 @@ PHPUnit mock:
 
 namespace foo;
 
-use phpmock\phpunit\PHPMock;
-
-class BuiltinTest extends \PHPUnit_Framework_TestCase
+class BuiltinTest extends \PHPUnit\Framework\TestCase
 {
 
-    use PHPMock;
+    use \phpmock\phpunit\PHPMock;
 
     public function testTime()
     {

classes/PHPMock.php

@@ -7,20 +7,18 @@
 use phpmock\Deactivatable;
 
 /**
- * Adds building a function mock functionality into PHPUnit_Framework_TestCase.
+ * Adds building a function mock functionality into \PHPUnit\Framework\TestCase.
  *
- * Use this trait in your PHPUnit_Framework_TestCase:
+ * Use this trait in your \PHPUnit\Framework\TestCase:
  * <code>
  * <?php
  *
  * namespace foo;
  *
- * use phpmock\phpunit\PHPMock;
- *
- * class FooTest extends \PHPUnit_Framework_TestCase
+ * class FooTest extends \PHPUnit\Framework\TestCase
  * {
  *
- *     use PHPMock;
+ *     use \phpmock\phpunit\PHPMock;
  *
  *     public function testBar()
  *     {
@@ -41,22 +39,22 @@ trait PHPMock
     /**
      * Returns a builder object to create mock objects using a fluent interface.
      *
-     * This method exists in PHPUnit_Framework_TestCase.
+     * This method exists in \PHPUnit\Framework\TestCase.
      *
      * @param string $className Name of the class to mock.
      * @return \PHPUnit_Framework_MockObject_MockBuilder
-     * @see \PHPUnit_Framework_TestCase::getMockBuilder()
+     * @see \PHPUnit\Framework\TestCase::getMockBuilder()
      * @internal
      */
     abstract protected function getMockBuilder($className);
 
     /**
      * Returns the test result.
      *
-     * This method exists in PHPUnit_Framework_TestCase.
+     * This method exists in \PHPUnit\Framework\TestCase.
      *
-     * @return \PHPUnit_Framework_TestResult The test result.
-     * @see \PHPUnit_Framework_TestCase::getTestResultObject()
+     * @return \PHPUnit\Framework\TestResult The test result.
+     * @see \PHPUnit\Framework\TestCase::getTestResultObject()
      * @internal
      */
     abstract protected function getTestResultObject();