Tests: Refresh PHPUnit config

.gitignore

@@ -1,8 +1,8 @@
+/.phpunit.cache/
 /logs/
 /node_modules/
 /vendor/
 /composer.lock
 /.phpcs.xml
 /phpcs.xml
 /phpunit.xml
-/.phpunit.result.cache

phpunit.xml.dist

@@ -1,30 +1,39 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		 xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/7.2/phpunit.xsd"
-		 bootstrap="tests/bootstrap.php"
-		 beStrictAboutCoversAnnotation="true"
-		 beStrictAboutOutputDuringTests="true"
-		 beStrictAboutTodoAnnotatedTests="true"
-		 colors="true"
-		 defaultTestSuite="unit"
-		 verbose="true">
+<phpunit
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.6/phpunit.xsd"
+	bootstrap="tests/bootstrap.php"
+	beStrictAboutCoversAnnotation="true"
+	beStrictAboutOutputDuringTests="true"
+	beStrictAboutTodoAnnotatedTests="true"
+	cacheResultFile=".phpunit.cache/test-results"
+	colors="true"
+	defaultTestSuite="unit"
+	executionOrder="depends,defects"
+	failOnRisky="true"
+	failOnWarning="true"
+	testdox="true"
+	verbose="true"
+>
 	<testsuites>
 		<testsuite name="unit">
-			<directory suffix="Test.php">tests/Unit</directory>
+			<directory>tests/Unit</directory>
 		</testsuite>
 		<testsuite name="integration">
-			<directory suffix="Test.php">tests/Integration</directory>
+			<directory>tests/Integration</directory>
 		</testsuite>
 	</testsuites>
 
-	<filter>
-		<whitelist processUncoveredFilesFromWhitelist="true">
+	<coverage processUncoveredFiles="true">
+		<include>
 			<directory suffix=".php">src</directory>
-		</whitelist>
-	</filter>
+		</include>
+		<report>
+			<text outputFile="php://stdout"/>
+		</report>
+	</coverage>
 
 	<logging>
-		<log type="coverage-text" target="php://stdout"/>
 		<!--<log type="coverage-html" target="coverage"/>-->
 	</logging>
 </phpunit>

tests/Unit/FooTest.php

@@ -23,23 +23,23 @@ class FooTest extends TestCase {
 	/**
 	 * A single example test.
 	 */
-	public function test_sample(): void {
+	public function test_method_asserts_as_true(): void {
 		// Replace this with some actual testing code.
 		static::assertTrue( ( new Testee() )->is_true() );
 	}
 
 	/**
 	 * A single example test.
 	 */
-	public function test_foo(): void {
+	public function test_false_asserts_as_false(): void {
 		// Replace this with some actual testing code.
 		static::assertFalse( false );
 	}
 
 	/**
 	 * A single example test.
 	 */
-	public function test_bar(): void {
+	public function test_method_call_value_equals_method_call_value(): void {
 		// Replace this with some actual testing code.
 		static::assertEquals( 'Foo::bar()', ( new Testee() )->bar() );
 	}