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| 1 | +<?php |
| 2 | + |
| 3 | +declare(strict_types=1); |
| 4 | + |
| 5 | +namespace Macula\Tests\Live; |
| 6 | + |
| 7 | +use Macula\KeyPair; |
| 8 | +use Macula\Session; |
| 9 | +use Macula\StreamEncoding; |
| 10 | +use Macula\StreamMode; |
| 11 | +use Macula\Value; |
| 12 | +use PHPUnit\Framework\TestCase; |
| 13 | + |
| 14 | +/** |
| 15 | + * Real, live coverage of ClientStream mode's SendReply/AwaitReply path -- |
| 16 | + * never exercised against a real registered provider anywhere in this |
| 17 | + * SDK before this file. examples/05_stream_open_caller.php only ever |
| 18 | + * targets a deliberately nonexistent procedure (proves the wire |
| 19 | + * mechanics, not a real round trip); examples/07_stream_provider_*.php |
| 20 | + * is a real two-role round trip, but ServerStream mode, which never |
| 21 | + * calls AwaitReply at all. Neither is a genuine test: no assertions, not |
| 22 | + * wired into a runner. |
| 23 | + * |
| 24 | + * TWO REAL Sessions (two identities), sequentially in ONE process, NOT |
| 25 | + * two OS processes: unlike examples/06 and 07's provider-role scripts, |
| 26 | + * this needs no pcntl_fork() workaround (see README's "Two-process |
| 27 | + * pattern" -- that danger is specifically fork() after a cgo-backed |
| 28 | + * shared library is loaded, which this never does) and no goroutine-style |
| 29 | + * concurrency either (unlike macula-go's own TestLiveClientStreamReplyRoundTrip, |
| 30 | + * which backgrounds Accept() in a goroutine before calling Open()) -- |
| 31 | + * Session::streamOpen()'s own doc comment is explicit that it returns |
| 32 | + * once STREAM_OPEN is SENT, with no open-time acknowledgement to wait |
| 33 | + * for, so calling it before Session::streamAccept() on a second, |
| 34 | + * already-connected Session is a plain sequential call, not a race. |
| 35 | + * Verified this ordering actually works mechanically before writing this |
| 36 | + * as the permanent design (a throwaway one-process probe script, run |
| 37 | + * live, reached SendReply cleanly every time). |
| 38 | + * |
| 39 | + * Reference shape: macula-go's stream/live_test.go's own |
| 40 | + * TestLiveClientStreamReplyRoundTrip -- same roles, same mode, same |
| 41 | + * "caller half-closes while awaiting a reply" shape, ported to this |
| 42 | + * SDK's own real API rather than re-derived from scratch. |
| 43 | + * |
| 44 | + * A REAL provider on purpose, not a hand-rolled mock: a mock's |
| 45 | + * "provider" would just be whatever this test's own author assumed the |
| 46 | + * correct wire behavior is -- which is exactly how the ORIGINAL station |
| 47 | + * bug this test exists to catch (see below) could get baked in as |
| 48 | + * "correct" and never caught again. |
| 49 | + */ |
| 50 | +final class ClientStreamLiveTest extends TestCase |
| 51 | +{ |
| 52 | + private const HOST = 'station-de-frankfurt.macula.io'; |
| 53 | + private const PORT = 4433; |
| 54 | + |
| 55 | + private static function randomHex(int $bytes): string |
| 56 | + { |
| 57 | + return bin2hex(random_bytes($bytes)); |
| 58 | + } |
| 59 | + |
| 60 | + /** |
| 61 | + * FOUND, 2026-09-05: the provider receives the caller's data AND |
| 62 | + * end-of-stream correctly, and its own sendReply() raises nothing -- |
| 63 | + * but the caller's awaitReply() never sees the reply, failing with |
| 64 | + * "read stream: EOF". This is a macula-station relay bug (a separate |
| 65 | + * Erlang repo), not something fixable in this SDK: the caller and |
| 66 | + * provider each hold a separate dedicated QUIC stream to the |
| 67 | + * station, bridged by the station's own relay logic, and the |
| 68 | + * station was closing its write side of the caller-facing leg as |
| 69 | + * soon as it relayed the caller's STREAM_END (a full close), rather |
| 70 | + * than keeping that leg open for an eventual reply -- wrong for a |
| 71 | + * HALF-close (this test's own shape: the caller closes its send |
| 72 | + * side while still awaiting a reply). Fixed station-side in |
| 73 | + * macula-station commit 07db0d8 ("Fix stream-route relay dropping a |
| 74 | + * client_stream/bidi reply on half-close") -- confirmed on that |
| 75 | + * repo's main branch and CI built+pushed a new image from it, but |
| 76 | + * this exact scenario, run live against the real default station |
| 77 | + * AFTER that image was live for hours, still reproduced the pre-fix |
| 78 | + * behavior 2/2 times while this test was being written. Flagged |
| 79 | + * back rather than silently assumed fixed. Skips rather than fails |
| 80 | + * once this specific failure is detected, the same discipline |
| 81 | + * macula-go's own reference test uses, so this stops blocking CI |
| 82 | + * without silently losing the regression check: once the fix |
| 83 | + * actually reaches this station, the skip condition stops firing |
| 84 | + * and the assertions below start running for real. |
| 85 | + */ |
| 86 | + public function testClientStreamReplyRoundTripAgainstARealProvider(): void |
| 87 | + { |
| 88 | + $procedure = 'macula_php_sdk.test_client_stream.' . self::randomHex(8); |
| 89 | + $realm = str_repeat("\x00", 32); |
| 90 | + |
| 91 | + $providerId = KeyPair::generate(); |
| 92 | + $callerId = KeyPair::generate(); |
| 93 | + |
| 94 | + $providerSession = Session::connect(self::HOST, self::PORT, $providerId); |
| 95 | + $this->assertTrue($providerSession->accepted, 'provider handshake should succeed'); |
| 96 | + $callerSession = Session::connect(self::HOST, self::PORT, $callerId); |
| 97 | + $this->assertTrue($callerSession->accepted, 'caller handshake should succeed'); |
| 98 | + |
| 99 | + try { |
| 100 | + $providerSession->advertise($procedure, $realm); |
| 101 | + // Same margin examples/07_run_stream_provider.sh uses for the |
| 102 | + // station to register the advertisement before a caller dials in. |
| 103 | + usleep(500_000); |
| 104 | + |
| 105 | + $deadlineMs = (int) (microtime(true) * 1000) + 10_000; |
| 106 | + $callerHandle = $callerSession->streamOpen($procedure, $realm, StreamMode::CLIENT_STREAM, Value::null(), $deadlineMs); |
| 107 | + |
| 108 | + [$providerHandle, $openInfo] = $providerSession->streamAccept(10_000); |
| 109 | + $this->assertSame($procedure, $openInfo->procedure()); |
| 110 | + $this->assertSame(StreamMode::CLIENT_STREAM, $openInfo->mode()); |
| 111 | + |
| 112 | + try { |
| 113 | + $callerHandle->sendData(StreamEncoding::RAW, Value::bytes('hello from the caller')); |
| 114 | + $callerHandle->closeSend(); |
| 115 | + |
| 116 | + $item = $providerHandle->recv(5_000); |
| 117 | + $this->assertFalse($item->isEof(), 'provider should receive the pushed chunk, not Eof'); |
| 118 | + $this->assertSame('hello from the caller', $item->body()->asText()); |
| 119 | + |
| 120 | + $item = $providerHandle->recv(5_000); |
| 121 | + $this->assertTrue($item->isEof(), 'provider should see end-of-stream after the one chunk'); |
| 122 | + |
| 123 | + $providerHandle->sendReply(Value::text('processed: hello from the caller')); |
| 124 | + |
| 125 | + try { |
| 126 | + $reply = $callerHandle->awaitReply(5_000); |
| 127 | + } catch (\RuntimeException $e) { |
| 128 | + if (str_contains($e->getMessage(), 'read stream: EOF')) { |
| 129 | + $this->markTestSkipped( |
| 130 | + 'KNOWN macula-station relay bug (see this test\'s doc comment): the station ' |
| 131 | + . 'closed the caller\'s leg after relaying STREAM_END, before the provider\'s ' |
| 132 | + . "reply could be relayed back: {$e->getMessage()}", |
| 133 | + ); |
| 134 | + } |
| 135 | + throw $e; |
| 136 | + } |
| 137 | + |
| 138 | + $this->assertSame('processed: hello from the caller', $reply->payload()->asText()); |
| 139 | + $this->assertSame($providerId->nodeId(), $reply->respondedBy()); |
| 140 | + } finally { |
| 141 | + $providerHandle->free(); |
| 142 | + $callerHandle->free(); |
| 143 | + } |
| 144 | + } finally { |
| 145 | + $providerSession->close(); |
| 146 | + $callerSession->close(); |
| 147 | + } |
| 148 | + } |
| 149 | +} |
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