Run tests on PHPUnit 9

.travis.yml

@@ -3,7 +3,7 @@ language: php
 # lock distro so future defaults will not break the build
 dist: trusty
 
-matrix:
+jobs:
   include:
     - php: 5.3
       dist: precise
@@ -17,7 +17,7 @@ matrix:
     - php: 7.4
 
 install:
-  - composer install --no-interaction
+  - composer install
 
 script:
   - vendor/bin/phpunit --coverage-text

composer.json

@@ -17,7 +17,7 @@
     "require-dev": {
         "clue/hexdump": "~0.2.0",
         "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3",
-        "phpunit/phpunit": "^7.0 || ^6.0 || ^5.0 || ^4.8.35"
+        "phpunit/phpunit": "^9.0 || ^5.7 || ^4.8.35"
     },
     "autoload": {
         "psr-4": { "Clue\\React\\Tar\\": "src/" }

tests/DecoderTest.php

@@ -10,7 +10,10 @@ class DecoderTest extends TestCase
 {
     private $decoder;
 
-    public function setUp()
+    /**
+     * @before
+     */
+    public function setUpDecoder()
     {
         $this->decoder = new Decoder();
     }

tests/FunctionalDecoderTest.php

@@ -10,7 +10,10 @@ class FunctionDecoderTest extends TestCase
 {
     private $decoder;
 
-    public function setUp()
+    /**
+     * @before
+     */
+    public function setUpDecoderAndLoop()
     {
         $this->decoder = new Decoder();
         $this->loop = Factory::create();

tests/TestCase.php

@@ -7,36 +7,35 @@ class TestCase extends \PHPUnit\Framework\TestCase
     protected function expectCallableOnce()
     {
         $mock = $this->createCallableMock();
-        $mock
-            ->expects($this->once())
-            ->method('__invoke');
+        $mock->expects($this->once())->method('__invoke');
 
         return $mock;
     }
 
     protected function expectCallableOnceWith($value)
     {
         $mock = $this->createCallableMock();
-        $mock
-            ->expects($this->once())
-            ->method('__invoke')
-            ->with($value);
+        $mock->expects($this->once())->method('__invoke')->with($value);
 
         return $mock;
     }
 
     protected function expectCallableNever()
     {
         $mock = $this->createCallableMock();
-        $mock
-            ->expects($this->never())
-            ->method('__invoke');
+        $mock->expects($this->never())->method('__invoke');
 
         return $mock;
     }
 
     protected function createCallableMock()
     {
-        return $this->getMockBuilder('stdClass')->setMethods(array('__invoke'))->getMock();
+        if (method_exists('PHPUnit\Framework\MockObject\MockBuilder', 'addMethods')) {
+            // PHPUnit 9+
+            return $this->getMockBuilder('stdClass')->addMethods(array('__invoke'))->getMock();
+        } else {
+            // legacy PHPUnit 4 - PHPUnit 8
+            return $this->getMockBuilder('stdClass')->setMethods(array('__invoke'))->getMock();
+        }
     }
 }