Run tests on PHP 7.4 and simplify test matrix, clean up test suite and add .gitattributes to exclude dev files from exports

.gitattributes

@@ -0,0 +1,6 @@
+/.gitattributes export-ignore
+/.gitignore export-ignore
+/.travis.yml export-ignore
+/examples/ export-ignore
+/phpunit.xml.dist export-ignore
+/tests/ export-ignore

.travis.yml

@@ -1,24 +1,23 @@
 language: php
 
-php:
-# - 5.3 # requires old distro
-  - 5.4
-  - 5.5
-  - 5.6
-  - 7.0
-  - 7.1
-  - 7.2
-  - hhvm # ignore errors, see below
-
 # lock distro so new future defaults will not break the build
 dist: trusty
 
 matrix:
   include:
     - php: 5.3
       dist: precise
+    - php: 5.4
+    - php: 5.5
+    - php: 5.6
+    - php: 7.0
+    - php: 7.1
+    - php: 7.2
+    - php: 7.3
+    - php: 7.4
+    - php: hhvm-3.18
   allow_failures:
-    - php: hhvm
+    - php: hhvm-3.18
 
 sudo: false
 

composer.json

@@ -17,9 +17,12 @@
         "rize/uri-template": "^0.3"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6.0 || ^5.7 || ^4.8.35"
+        "phpunit/phpunit": "^7.0 || ^6.0 || ^5.7 || ^4.8.35"
     },
     "autoload": {
         "psr-4": { "Clue\\React\\Packagist\\Api\\": "src/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\React\\Api\\": "tests/" }
     }
 }

phpunit.xml.dist

@@ -1,11 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<phpunit bootstrap="tests/bootstrap.php"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
->
+<phpunit bootstrap="vendor/autoload.php" colors="true">
     <testsuites>
         <testsuite name="Packagist React Test Suite">
             <directory>./tests/</directory>
@@ -16,4 +11,4 @@
             <directory>./src/</directory>
         </whitelist>
     </filter>
-</phpunit>
+</phpunit>

tests/ClientTest.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace Clue\Tests\React\Api;
+
 use Clue\React\Packagist\Api\Client;
 use React\Promise\Deferred;
 use RingCentral\Psr7\Response;
@@ -68,7 +70,7 @@ public function testSearchPagination()
     public function testSearchRejectsWhenRequestRejects()
     {
         $this->browser->expects($this->once())->method('get')->willReturn(
-            $this->createRejectedPromise(new RuntimeException())
+            $this->createRejectedPromise(new \RuntimeException())
         );
 
         $promise = $this->client->search('foo');
@@ -103,7 +105,7 @@ public function testSearchCancelPendingPromiseWillCancelNextRequestWhenInitialIs
 
     public function testHttpError()
     {
-        $this->setupBrowser('/packages/clue%2Finvalid.json', $this->createRejectedPromise(new RuntimeException('error')));
+        $this->setupBrowser('/packages/clue%2Finvalid.json', $this->createRejectedPromise(new \RuntimeException('error')));
 
         $this->expectPromiseReject($this->client->get('clue/invalid'));
     }

tests/bootstrap.php → tests/TestCase.php

@@ -1,26 +1,30 @@
 <?php
 
-use PHPUnit\Framework\TestCase as BaseTestCase;
+namespace Clue\Tests\React\Api;
 
-require_once __DIR__ . '/../vendor/autoload.php';
+use PHPUnit\Framework\TestCase as BaseTestCase;
 
 class TestCase extends BaseTestCase
 {
     protected function expectCallableOnce()
     {
         $mock = $this->createCallableMock();
 
+        $mock
+            ->expects($this->once())
+            ->method('__invoke');
+
+        return $mock;
+    }
+
+    protected function expectCallableOnceWith($value)
+    {
+        $mock = $this->createCallableMock();
 
-        if (func_num_args() > 0) {
-            $mock
-                ->expects($this->once())
-                ->method('__invoke')
-                ->with($this->equalTo(func_get_arg(0)));
-        } else {
-            $mock
-                ->expects($this->once())
-                ->method('__invoke');
-        }
+        $mock
+            ->expects($this->once())
+            ->method('__invoke')
+            ->with($value);
 
         return $mock;
     }
@@ -37,13 +41,7 @@ protected function expectCallableNever()
 
     protected function expectCallableOnceParameter($type)
     {
-        $mock = $this->createCallableMock();
-        $mock
-            ->expects($this->once())
-            ->method('__invoke')
-            ->with($this->isInstanceOf($type));
-
-        return $mock;
+        return $this->expectCallableOnceWith($this->isInstanceOf($type));
     }
 
     protected function createCallableMock()