Allow to run on php 8.1 / phpunit 9.5 (#33)

* change: update composer.json to work with php > 7.3
* change: update phpunit to 9.5
* add: phpunit cache file to ignore

Author: tstrijdhorst

.gitignore

@@ -1,3 +1,4 @@
 .idea
 vendor
 composer.lock
+/.phpunit.result.cache

composer.json

@@ -1,27 +1,39 @@
 {
-    "name": "daylerees/scientist",
-    "description": "A PHP experimentation library inspired by Github's own Scientist.",
-    "keywords": ["scientist", "testing", "experiment", "framework", "dayle", "test"],
-    "license": "MIT",
-    "type": "library",
-    "authors": [
-        {
-            "name": "Dayle Rees",
-            "email": "me@daylerees.com"
-        }
-    ],
-    "require": {
-        "php": "^7.0"
-    },
-    "require-dev": {
-        "phpunit/phpunit": "^6.0",
-        "squizlabs/php_codesniffer": "^2.5",
-        "jakub-onderka/php-parallel-lint": "^0.9.2",
-        "phing/phing": "^2.13"
-    },
-    "autoload": {
-        "psr-4": {
-            "Scientist\\": "src"
-        }
+  "name": "daylerees/scientist",
+  "description": "A PHP experimentation library inspired by Github's own Scientist.",
+  "keywords": [
+    "scientist",
+    "testing",
+    "experiment",
+    "framework",
+    "dayle",
+    "test"
+  ],
+  "license": "MIT",
+  "type": "library",
+  "authors": [
+    {
+      "name": "Dayle Rees",
+      "email": "me@daylerees.com"
     }
+  ],
+  "require": {
+    "php": ">=7.3"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "^9.5",
+    "squizlabs/php_codesniffer": "^2.9",
+    "php-parallel-lint/php-parallel-lint": "^1.3",
+    "phing/phing": "^2.13"
+  },
+  "autoload": {
+    "psr-4": {
+      "Scientist\\": "src"
+    }
+  },
+  "autoload-dev": {
+    "psr-4": {
+      "Scientist\\Tests\\": "tests"
+    }
+  }
 }

tests/Chances/StandardChanceTest.php

@@ -8,7 +8,7 @@ class StandardChanceTest extends \PHPUnit\Framework\TestCase
      */
     private $chance;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->chance = new StandardChance();
     }

tests/LaboratoryTest.php

@@ -33,20 +33,20 @@ public function test_laboratory_can_fetch_report_for_experiment_with_no_journals
         $this->assertInstanceOf(Report::class, $r);
         $this->assertEquals('foo', $r->getControl()->getValue());
         $this->assertEquals('bar', $r->getTrial('trial')->getValue());
-        $this->assertInternalType('float', $r->getControl()->getStartTime());
-        $this->assertInternalType('float', $r->getControl()->getEndTime());
-        $this->assertInternalType('float', $r->getControl()->getTime());
-        $this->assertInternalType('float', $r->getTrial('trial')->getStartTime());
-        $this->assertInternalType('float', $r->getTrial('trial')->getEndTime());
-        $this->assertInternalType('float', $r->getTrial('trial')->getTime());
-        $this->assertInternalType('integer', $r->getControl()->getStartMemory());
-        $this->assertInternalType('integer', $r->getControl()->getEndMemory());
-        $this->assertInternalType('integer', $r->getControl()->getMemory());
-        $this->assertInternalType('integer', $r->getTrial('trial')->getStartMemory());
-        $this->assertInternalType('integer', $r->getTrial('trial')->getEndMemory());
-        $this->assertInternalType('integer', $r->getTrial('trial')->getMemory());
-        $this->assertInternalType('null', $r->getControl()->getException());
-        $this->assertInternalType('null', $r->getTrial('trial')->getException());
+        $this->assertIsFloat($r->getControl()->getStartTime());
+        $this->assertIsFloat($r->getControl()->getEndTime());
+        $this->assertIsFloat($r->getControl()->getTime());
+        $this->assertIsFloat($r->getTrial('trial')->getStartTime());
+        $this->assertIsFloat($r->getTrial('trial')->getEndTime());
+        $this->assertIsFloat($r->getTrial('trial')->getTime());
+        $this->assertIsInt($r->getControl()->getStartMemory());
+        $this->assertIsInt($r->getControl()->getEndMemory());
+        $this->assertIsInt($r->getControl()->getMemory());
+        $this->assertIsInt($r->getTrial('trial')->getStartMemory());
+        $this->assertIsInt($r->getTrial('trial')->getEndMemory());
+        $this->assertIsInt($r->getTrial('trial')->getMemory());
+        $this->assertNull($r->getControl()->getException());
+        $this->assertNull($r->getTrial('trial')->getException());
         $this->assertFalse($r->getTrial('trial')->isMatch());
     }
 
@@ -70,7 +70,7 @@ public function test_that_exceptions_are_swallowed_within_the_trial()
             ->report();
 
         $this->assertInstanceOf(Report::class, $r);
-        $this->assertInternalType('null', $r->getControl()->getException());
+        $this->assertNull($r->getControl()->getException());
         $this->assertInstanceOf(Exception::class, $r->getTrial('trial')->getException());
     }
 

tests/MachineTest.php

@@ -93,8 +93,8 @@ public function test_that_machine_can_determine_start_and_end_times_for_callback
         $r = $m->execute();
         $e = microtime(true) + 60;
 
-        $this->assertInternalType('float', $r->getStartTime());
-        $this->assertInternalType('float', $r->getEndTime());
+        $this->assertIsFloat($r->getStartTime());
+        $this->assertIsFloat($r->getEndTime());
         $this->assertGreaterThan($s, $r->getStartTime());
         $this->assertGreaterThan($s, $r->getEndTime());
         $this->assertLessThan($e, $r->getStartTime());
@@ -107,7 +107,7 @@ public function test_that_machine_can_determine_memory_usage_changes()
 
         $r = $m->execute();
 
-        $this->assertInternalType('integer', $r->getStartMemory());
-        $this->assertInternalType('integer', $r->getEndMemory());
+        $this->assertIsInt($r->getStartMemory());
+        $this->assertIsInt($r->getEndMemory());
     }
 }