- adds HTTP/2 protocol check

Author: kodeart

MessageTrait.php

@@ -26,7 +26,7 @@ public function getProtocolVersion(): string
 
     public function withProtocolVersion($version): static
     {
-        if (false === \in_array($version, ['1.0', '1.1'], true)) {
+        if (false === \in_array($version, ['1.0', '1.1', '2'], true)) {
             throw new \InvalidArgumentException('Unsupported HTTP protocol version ' . $version);
         }
         $instance                  = clone $this;

Tests/MessageTraitTest.php

@@ -14,14 +14,15 @@ class MessageTraitTest extends TestCase
     public function test_should_deal_with_unsupported_protocol()
     {
         $this->expectException(\InvalidArgumentException::class);
-        $this->expectExceptionMessage('Unsupported HTTP protocol version 2');
-        (new TestMessage)->withProtocolVersion('2');
+        $this->expectExceptionMessage('Unsupported HTTP protocol version 3');
+        (new TestMessage)->withProtocolVersion('3');
     }
 
     public function test_should_set_supported_protocol_versions()
     {
         $this->assertSame('1.0', $this->SUT->withProtocolVersion('1.0')->getProtocolVersion());
         $this->assertSame('1.1', $this->SUT->withProtocolVersion('1.1')->getProtocolVersion());
+        $this->assertSame('2', $this->SUT->withProtocolVersion('2')->getProtocolVersion());
     }
 
     public function test_should_always_return_instance_of_stream()