tests: allow to mock final classes

Author: Alcides Ramos

app/Providers/Foo.php

@@ -8,13 +8,9 @@
 
 final class Foo
 {
-    public static function dump(): string
+    public static function getDateTime(?string $format = 'Y-m-d H:i:s'): string
     {
-        $date = (new DateTimeImmutable())->format('Y-m-d H:i:s');
-
-        $line = 'Executed method [ ' . __FUNCTION__ . ' ] in [ ' . getenv('ENV') . ' ] mode' . PHP_EOL;
-
-        return sprintf('[%s] %s: %s', $date, self::class, $line);
+        return (new DateTimeImmutable())->format($format);
     }
 
     public function ping(): string

tests/Unit/Providers/FooTest.php

@@ -5,6 +5,7 @@
 namespace UnitTests\Providers;
 
 use App\Providers\Foo;
+use DateTimeImmutable;
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\Attributes\Test;
@@ -16,7 +17,7 @@ final class FooTest extends TestCase
 {
     protected function setUp(): void
     {
-        ClockMock::freeze(new \DateTime('2023-01-01 00:00:00'));
+        ClockMock::freeze(new \DateTime('2024-01-01 00:00:00'));
     }
 
     protected function tearDown(): void
@@ -25,32 +26,34 @@ protected function tearDown(): void
     }
 
     #[Test]
-    #[DataProvider('dataProviderForDump')]
-    public function checkInvokeMethod(string $expectedLog): void
+    #[DataProvider('dataProviderForGetDateTime')]
+    public function checkGetDateTime(string $format): void
     {
-        self::assertEquals($expectedLog, Foo::dump());
+        $expectedCurrentDateTime = (new DateTimeImmutable())->format($format);
+
+        self::assertEquals($expectedCurrentDateTime, Foo::getDateTime($format));
     }
 
     /**
      * @return array<string, array<int, string>>
      */
-    public static function dataProviderForDump(): array
+    public static function dataProviderForGetDateTime(): array
     {
         return [
-            '[DEFAULT CASE]' => [
-                '[2023-01-01 00:00:00] App\Providers\Foo: Executed method [ dump ] in [ DEVELOPMENT ] mode' . PHP_EOL,
-            ],
+            '[CURRENT DATE TIME]' => ['Y-m-d H:i:s'],
+            '[CURRENT DATE]' => ['Y-m-d'],
+            '[CURRENT TIME]' => ['H:i:s'],
         ];
     }
 
     #[Test]
-    public function checkMockFinal(): void
+    public function checkMockFinalClass(): void
     {
         self::assertEquals('pong', (new Foo())->ping());
 
         $mock = $this->createMock(Foo::class);
-        $mock->method('ping')->willReturn('pong pong');
+        $mock->expects(self::once())->method('ping')->willReturn('knock knock');
 
-        self::assertEquals('pong pong', $mock->ping());
+        self::assertEquals('knock knock', $mock->ping());
     }
 }