first commit

server/tests/PrescriptionAiUpstreamContractTest.php

@@ -0,0 +1,85 @@
+<?php
+
+declare(strict_types=1);
+
+require dirname(__DIR__) . '/vendor/autoload.php';
+
+use app\common\service\DifyChatService;
+
+function expectSame($expected, $actual, string $message): void
+{
+    if ($expected !== $actual) {
+        fwrite(STDERR, "FAIL: {$message}\n");
+        exit(1);
+    }
+}
+
+function callPrivate(string $name, array $arguments)
+{
+    $method = (new ReflectionClass(DifyChatService::class))->getMethod($name);
+    return $method->invoke(null, ...$arguments);
+}
+
+$generic = callPrivate('buildRequestSpecs', [
+    'https://ai.example.test/v1',
+    'model-name',
+    ['prompt_version' => 'test'],
+    'clinical prompt',
+    'server-user',
+]);
+expectSame(2, count($generic), 'ambiguous /v1 base should support both protocols');
+expectSame('https://ai.example.test/v1/chat-messages', $generic[0]['url'], 'Dify endpoint');
+expectSame('blocking', $generic[0]['payload']['response_mode'], 'Dify blocking request');
+expectSame('https://ai.example.test/v1/chat/completions', $generic[1]['url'], 'OpenAI endpoint');
+expectSame('model-name', $generic[1]['payload']['model'], 'profile model selection');
+expectSame('clinical prompt', $generic[1]['payload']['messages'][0]['content'], 'OpenAI prompt');
+$serializedSpecs = json_encode($generic, JSON_UNESCAPED_SLASHES) ?: '';
+expectSame(false, str_contains($serializedSpecs, 'api_key'), 'credential field is absent from request bodies');
+expectSame(false, str_contains($serializedSpecs, 'provider'), 'provider override is absent from request bodies');
+expectSame(false, str_contains($serializedSpecs, 'base_url'), 'base URL override is absent from request bodies');
+
+$openAi = callPrivate('buildRequestSpecs', [
+    'https://ai.example.test/v1/chat/completions',
+    'model-name',
+    [],
+    'prompt',
+    'server-user',
+]);
+expectSame(1, count($openAi), 'explicit OpenAI endpoint should not probe Dify');
+expectSame('openai', $openAi[0]['protocol'], 'explicit OpenAI protocol');
+
+$dify = callPrivate('buildRequestSpecs', [
+    'https://ai.example.test/v1/chat-messages',
+    'model-name',
+    [],
+    'prompt',
+    'server-user',
+]);
+expectSame(1, count($dify), 'explicit Dify endpoint should not probe OpenAI');
+expectSame('dify', $dify[0]['protocol'], 'explicit Dify protocol');
+
+expectSame('Dify answer', callPrivate('extractContent', [['answer' => ' Dify answer ']]), 'Dify response');
+expectSame(
+    'OpenAI answer',
+    callPrivate('extractContent', [['choices' => [['message' => ['content' => ' OpenAI answer ']]]]]),
+    'OpenAI response'
+);
+expectSame(
+    'multipart answer',
+    callPrivate('extractContent', [['choices' => [['message' => ['content' => [
+        ['type' => 'text', 'text' => 'multipart '],
+        ['type' => 'text', 'text' => 'answer'],
+    ]]]]]]),
+    'OpenAI multipart response'
+);
+
+expectSame(true, callPrivate('isValidBaseUrl', ['https://ai.example.test/v1']), 'https URL');
+expectSame(true, callPrivate('isValidBaseUrl', ['http://127.0.0.1:8080/v1']), 'internal http URL');
+expectSame(false, callPrivate('isValidBaseUrl', ['file:///tmp/socket']), 'non-http URL');
+expectSame(false, callPrivate('isValidBaseUrl', ['https://user@example.test/v1']), 'userinfo URL');
+expectSame(false, callPrivate('isValidBaseUrl', ['https://ai.example.test/v1?unsafe=query']), 'query URL');
+expectSame(true, callPrivate('isValidTimeout', [90]), 'normal timeout');
+expectSame(false, callPrivate('isValidTimeout', [0]), 'zero timeout');
+expectSame(false, callPrivate('isValidTimeout', [301]), 'excessive timeout');
+
+echo "Prescription AI upstream contract: OK\n";