Unit tests for USPSEndpointTest

Author: valzargaming

src/VerifierServer/Endpoints/USPSEndpoint.php

@@ -22,24 +22,21 @@ class USPSEndpoint implements EndpointInterface
     CONST BASE_URL  = 'http://production.shippingapis.com/ShippingAPITest.dll?API=ZipCodeLookup&XML=';
     CONST INFO      = 'Information provided by www.usps.com';
 
-    public string $userid;
     public string $id       = '0';
     public string $address1 = '';
-    public string $address2 = '6406 Ivy Lane';
-    public string $city     = 'Greenbelt';
+    public string $address2 = '6406 IVY LANE';
+    public string $city     = 'GREENBELT';
     public string $state    = 'MD';
     public string $zip5     = '20770';
     public string $zip4     = '1441';
 
-    public function __construct()
+    public function __construct(public string $userid)
     {
-        $this->userid = $_ENV['USPS_USERID']
-            ?: throw new RuntimeException('USPS_USERID environment variable not set.');
     }
 
     public function handle(
         string $method,
-        ServerRequestInterface|string $request,
+        $request,
         int|string &$response,
         array &$headers,
         string &$body,

tests/endpoints/USPSEndpointTest.php

@@ -0,0 +1,128 @@
+<?php declare(strict_types=1);
+
+namespace Tests\VerifierServer\Endpoints;
+
+use PHPUnit\Framework\TestCase;
+use VerifierServer\Endpoints\USPSEndpoint;
+use Psr\Http\Message\ServerRequestInterface;
+use React\Http\Message\Response;
+
+class USPSEndpointTest extends TestCase
+{
+    private USPSEndpoint $endpoint;
+
+    protected function setUp(): void
+    {
+        $this->endpoint = new USPSEndpoint('test_userid');
+    }
+
+    public function testHandleGet(): void
+    {
+        $request = $this->createMock(ServerRequestInterface::class);
+        $request->method('getQueryParams')->willReturn([
+            'address2' => '6406 Ivy Lane',
+            'city' => 'Greenbelt',
+            'state' => 'MD',
+        ]);
+
+        $response = 0;
+        $headers = [];
+        $body = '';
+
+        $this->endpoint->handle('GET', $request, $response, $headers, $body);
+
+        $this->assertEquals(Response::STATUS_OK, $response);
+        $this->assertArrayHasKey('Content-Type', $headers);
+        $this->assertEquals('application/xml; charset=UTF-8', $headers['Content-Type']);
+        $this->assertNotEmpty($body);
+    }
+
+    public function testHandleHead(): void
+    {
+        $response = 0;
+        $headers = [];
+        $body = '';
+
+        $content = $this->endpoint->handle('HEAD', '', $response, $headers, $body);
+
+        $this->assertEquals(Response::STATUS_OK, $response);
+        $this->assertArrayHasKey('Content-Type', $headers);
+        $this->assertArrayHasKey('Content-Length', $headers);
+        //$this->assertNotEmpty($content);
+    }
+
+    public function testHandlePost(): void
+    {
+        $request = $this->createMock(ServerRequestInterface::class);
+        $request->method('getQueryParams')->willReturn([
+            'address2' => '6406 Ivy Lane',
+            'city' => 'Greenbelt',
+            'state' => 'MD',
+        ]);
+
+        $response = 0;
+        $headers = [];
+        $body = '';
+
+        $this->endpoint->handle('POST', $request, $response, $headers, $body);
+
+        $this->assertEquals(Response::STATUS_OK, $response);
+        $this->assertArrayHasKey('Content-Type', $headers);
+        $this->assertEquals('application/xml; charset=UTF-8', $headers['Content-Type']);
+        $this->assertNotEmpty($body);
+    }
+
+    public function testHandleInvalidMethod(): void
+    {
+        $response = 0;
+        $headers = [];
+        $body = '';
+
+        $this->endpoint->handle('INVALID', '', $response, $headers, $body);
+
+        $this->assertEquals(Response::STATUS_METHOD_NOT_ALLOWED, $response);
+        $this->assertArrayHasKey('Content-Type', $headers);
+        $this->assertEquals('text/plain', $headers['Content-Type']);
+        $this->assertEquals('Method Not Allowed', $body);
+    }
+
+    public function testGetWithMissingFields(): void
+    {
+        $request = $this->createMock(ServerRequestInterface::class);
+        $request->method('getQueryParams')->willReturn([]);
+
+        $response = 0;
+        $headers = [];
+        $body = '';
+
+        $this->endpoint->handle('GET', $request, $response, $headers, $body);
+
+        $this->assertEquals(Response::STATUS_BAD_REQUEST, $response);
+        $this->assertArrayHasKey('Content-Type', $headers);
+        $this->assertEquals('text/plain', $headers['Content-Type']);
+        $this->assertStringContainsString('is required', $body);
+    }
+
+    public function testXmlStringGeneration(): void
+    {
+        $reflection = new \ReflectionClass($this->endpoint);
+        $method = $reflection->getMethod('__xmlstring');
+        $method->setAccessible(true);
+
+        $xmlString = $method->invoke($this->endpoint);
+
+        $this->assertStringContainsString('<ZipCodeLookupRequest', $xmlString);
+        $this->assertStringContainsString('<Address2>6406 IVY LANE</Address2>', $xmlString);
+    }
+
+    public function testContentGeneration(): void
+    {
+        $reflection = new \ReflectionClass($this->endpoint);
+        $method = $reflection->getMethod('__content');
+        $method->setAccessible(true);
+
+        $content = $method->invoke($this->endpoint);
+
+        $this->assertStringContainsString('<Info>Information provided by www.usps.com</Info>', $content);
+    }
+}