public function testNewInstanceWhenAddingHeaderThatWasNotThereBefore() { $r = new Response(200, ['Foo' => 'Bar']); $r2 = $r->withAddedHeader('Baz', 'Bam'); $this->assertNotSame($r, $r2); $this->assertEquals('Bam', $r2->getHeaderLine('Baz')); $this->assertEquals('Bar', $r2->getHeaderLine('Foo')); }
public function testWithAddedHeaderThatDoesNotExist() { $r = new Response(200, ['Foo' => 'Bar']); $r2 = $r->withAddedHeader('nEw', 'Baz'); $this->assertSame(['Foo' => ['Bar']], $r->getHeaders()); $this->assertSame(['Foo' => ['Bar'], 'nEw' => ['Baz']], $r2->getHeaders()); $this->assertSame('Baz', $r2->getHeaderLine('new')); $this->assertSame(['Baz'], $r2->getHeader('new')); }