Add static from method to Response class for flexible response creation.

src/Response.php

@@ -9,6 +9,11 @@
 
 final readonly class Response implements Responses
 {
+    public static function from(Code $code, mixed $body, Headers ...$headers): ResponseInterface
+    {
+        return InternalResponse::createWithBody($body, $code, ...$headers);
+    }
+
     public static function ok(mixed $body, Headers ...$headers): ResponseInterface
     {
         return InternalResponse::createWithBody($body, Code::OK, ...$headers);

src/Responses.php

@@ -13,6 +13,16 @@
  */
 interface Responses
 {
+    /**
+     * Creates a response with the specified status code, body, and headers.
+     *
+     * @param Code $code The HTTP status code for the response.
+     * @param mixed $body The body of the response.
+     * @param Headers ...$headers Optional additional headers for the response.
+     * @return ResponseInterface The generated response with the specified status code, body, and headers.
+     */
+    public static function from(Code $code, mixed $body, Headers ...$headers): ResponseInterface;
+
     /**
      * Creates a response with a 200 OK status.
      *

tests/ResponseTest.php

@@ -22,6 +22,31 @@
 
 final class ResponseTest extends TestCase
 {
+    #[DataProvider('responseFromProvider')]
+    public function testResponseFrom(Code $code, mixed $body, string $expectedBody): void
+    {
+        /** @Given a specific status code and body */
+        /** @When we create the HTTP response using the generic from method */
+        $actual = Response::from(code: $code, body: $body);
+
+        /** @Then the protocol version should be "1.1" */
+        self::assertSame('1.1', $actual->getProtocolVersion());
+
+        /** @And the body of the response should match the expected output */
+        self::assertSame($expectedBody, $actual->getBody()->__toString());
+        self::assertSame($expectedBody, $actual->getBody()->getContents());
+
+        /** @And the status code should match the provided code */
+        self::assertSame($code->value, $actual->getStatusCode());
+        self::assertTrue(Code::isValidCode(code: $actual->getStatusCode()));
+
+        /** @And the reason phrase should match the provided code message */
+        self::assertSame($code->message(), $actual->getReasonPhrase());
+
+        /** @And the headers should contain Content-Type as application/json with charset=utf-8 */
+        self::assertSame(['Content-Type' => ['application/json; charset=utf-8']], $actual->getHeaders());
+    }
+
     public function testResponseOk(): void
     {
         /** @Given a body with data */
@@ -351,6 +376,37 @@ public function testResponseInternalServerError(): void
         self::assertSame(['Content-Type' => ['application/json; charset=utf-8']], $actual->getHeaders());
     }
 
+    public static function responseFromProvider(): array
+    {
+        return [
+            'I am a teapot'                           => [
+                'code'         => Code::IM_A_TEAPOT,
+                'body'         => 'Short and stout',
+                'expectedBody' => 'Short and stout'
+            ],
+            'OK with array body'                      => [
+                'code'         => Code::OK,
+                'body'         => ['status' => 'success'],
+                'expectedBody' => '{"status":"success"}'
+            ],
+            'Accepted with null body'                 => [
+                'code'         => Code::ACCEPTED,
+                'body'         => null,
+                'expectedBody' => ''
+            ],
+            'Not Found with string body'              => [
+                'code'         => Code::NOT_FOUND,
+                'body'         => 'Resource not found',
+                'expectedBody' => 'Resource not found'
+            ],
+            'Internal Server Error with complex body' => [
+                'code'         => Code::INTERNAL_SERVER_ERROR,
+                'body'         => ['error' => ['code' => 500, 'message' => 'Crash']],
+                'expectedBody' => '{"error":{"code":500,"message":"Crash"}}'
+            ]
+        ];
+    }
+
     #[DataProvider('bodyProviderData')]
     public function testResponseBodySerialization(mixed $body, string $expected): void
     {