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| 1 | <?php |
| 2 | |
| 3 | // ╔════════════════════════════════════════════════════════════╗ |
| 4 | // ║ MIT Licence (#Expat) - https://opensource.org/licenses/MIT ║ |
| 5 | // ║ Copyright 2026 Frederic Poeydomenge <dyno@phexium.com> ║ |
| 6 | // ╚════════════════════════════════════════════════════════════╝ |
| 7 | |
| 8 | declare(strict_types=1); |
| 9 | |
| 10 | pest()->group('unit'); |
| 11 | |
| 12 | use Nyholm\Psr7\Factory\Psr17Factory; |
| 13 | use Nyholm\Psr7\Response; |
| 14 | use Phexium\Presentation\ResponseBuilder; |
| 15 | |
| 16 | describe('Response creation', function (): void { |
| 17 | it('starts from the response given to withResponse()', function (): void { |
| 18 | $builder = new ResponseBuilder(new Psr17Factory()); |
| 19 | |
| 20 | $result = $builder |
| 21 | ->withResponse(new Response(404, ['X-Custom' => 'toto'], 'text body')) |
| 22 | ->build() |
| 23 | ; |
| 24 | |
| 25 | expect($result->getStatusCode())->toBe(404); |
| 26 | expect($result->getHeaderLine('X-Custom'))->toBe('toto'); |
| 27 | expect((string) $result->getBody())->toBe('text body'); |
| 28 | }); |
| 29 | |
| 30 | it('builds HTML response with default charset', function (): void { |
| 31 | $builder = new ResponseBuilder(new Psr17Factory()); |
| 32 | |
| 33 | $result = $builder |
| 34 | ->withHtmlBody('<h1>Hello World</h1>') |
| 35 | ->build() |
| 36 | ; |
| 37 | |
| 38 | expect($result->getStatusCode())->toBe(200); |
| 39 | expect($result->getHeaderLine('Content-Type'))->toBe('text/html; charset=utf-8'); |
| 40 | expect((string) $result->getBody())->toBe('<h1>Hello World</h1>'); |
| 41 | }); |
| 42 | |
| 43 | it('builds JSON response with default charset', function (): void { |
| 44 | $builder = new ResponseBuilder(new Psr17Factory()); |
| 45 | |
| 46 | $result = $builder |
| 47 | ->withJsonBody(['message' => 'Hello World']) |
| 48 | ->build() |
| 49 | ; |
| 50 | |
| 51 | expect($result->getStatusCode())->toBe(200); |
| 52 | expect($result->getHeaderLine('Content-Type'))->toBe('application/json; charset=utf-8'); |
| 53 | expect((string) $result->getBody())->json()->toBe(['message' => 'Hello World']); |
| 54 | }); |
| 55 | |
| 56 | it('builds raw response with the given content type', function (): void { |
| 57 | $builder = new ResponseBuilder(new Psr17Factory()); |
| 58 | |
| 59 | $result = $builder |
| 60 | ->withRawBody('fake-jpeg-bytes', 'image/jpeg') |
| 61 | ->build() |
| 62 | ; |
| 63 | |
| 64 | expect($result->getHeaderLine('Content-Type'))->toBe('image/jpeg'); |
| 65 | expect((string) $result->getBody())->toBe('fake-jpeg-bytes'); |
| 66 | }); |
| 67 | |
| 68 | it('sets custom status code', function (): void { |
| 69 | $builder = new ResponseBuilder(new Psr17Factory()); |
| 70 | |
| 71 | $result = $builder->withStatus(404)->build(); |
| 72 | |
| 73 | expect($result->getStatusCode())->toBe(404); |
| 74 | }); |
| 75 | |
| 76 | it('replaces a body already present on the response', function (): void { |
| 77 | $builder = new ResponseBuilder(new Psr17Factory()); |
| 78 | |
| 79 | $result = $builder |
| 80 | ->withResponse(new Response(200, [], 'previous body')) |
| 81 | ->withHtmlBody('new body') |
| 82 | ->build() |
| 83 | ; |
| 84 | |
| 85 | expect((string) $result->getBody())->toBe('new body'); |
| 86 | }); |
| 87 | }); |
| 88 | |
| 89 | describe('Headers', function (): void { |
| 90 | it('replaces existing header with withHeader()', function (): void { |
| 91 | $builder = new ResponseBuilder(new Psr17Factory()); |
| 92 | |
| 93 | $result = $builder |
| 94 | ->withResponse(new Response(200, ['X-Custom' => 'value1'])) |
| 95 | ->withHeader('X-Custom', 'value2') |
| 96 | ->build() |
| 97 | ; |
| 98 | |
| 99 | expect($result->getHeaderLine('X-Custom'))->toBe('value2'); |
| 100 | }); |
| 101 | |
| 102 | it('appends header value with addHeader()', function (): void { |
| 103 | $builder = new ResponseBuilder(new Psr17Factory()); |
| 104 | |
| 105 | $result = $builder |
| 106 | ->withResponse(new Response(200, ['X-Custom' => 'value1'])) |
| 107 | ->addHeader('X-Custom', 'value2') |
| 108 | ->build() |
| 109 | ; |
| 110 | |
| 111 | expect($result->getHeader('X-Custom'))->toBe(['value1', 'value2']); |
| 112 | }); |
| 113 | }); |
| 114 | |
| 115 | describe('Immutability', function (): void { |
| 116 | it('leaves the original builder untouched', function (): void { |
| 117 | $builder = new ResponseBuilder(new Psr17Factory()); |
| 118 | $builder->withStatus(302)->withHeader('Location', '/books')->withJsonBody(['posts' => []]); |
| 119 | |
| 120 | $result = $builder->build(); |
| 121 | |
| 122 | expect([$result->getStatusCode(), $result->getHeaders(), (string) $result->getBody()]) |
| 123 | ->toBe([200, [], '']) |
| 124 | ; |
| 125 | }); |
| 126 | }); |