Deal with form data

features/send_request.feature

@@ -16,12 +16,22 @@ Feature: Test send API request
         When I send a POST request to "echo" with body:
         """
         {
-            "name" : "name",
-            "pass": "pass"
+            "username" : "pablo",
+            "password": "money"
         }
         """
         Then the JSON node "method" should be equal to "POST"
         And the JSON node "headers.content-type[0]" should be equal to "application/json"
+        And the JSON node "username" should be equal to "pablo"
+        And the JSON node "password" should be equal to "money"
+
+    Scenario: Sending POST request with form data
+        When I send a POST request to "echo" with form data:
+            | username | pablo |
+            | password | money |
+        Then the response status code should be 200
+        And the JSON node "username" should be equal to "pablo"
+        And the JSON node "password" should be equal to "money"
 
     Scenario: Add same header 2 times
         Given I add "header" header equal to "value"

src/Rest/RestApiBrowser.php

@@ -92,7 +92,7 @@ public function getHttpClient()
     /**
      * @param string $method
      * @param string $url
-     * @param string $body
+     * @param string|array $body
      */
     public function sendRequest($method, $url, $body = null)
     {
@@ -116,17 +116,19 @@ public function sendRequest($method, $url, $body = null)
     /**
      * @param string $method
      * @param string $uri With or without host
-     * @param string|resource|array $body
+     * @param string|array $body
      */
     private function send($method, $uri, $body = null)
     {
         if (!$this->hasHost($uri)) {
             $uri = rtrim($this->httpClient->getConfiguration()->getBaseUri(), '/') . '/' . ltrim($uri, '/');
         }
+        $body = is_array($body) ? http_build_query($body) : $body;
         $stream = new Stream('php://memory', 'rw');
-        if ($body) {
+        if (is_string($body)) {
             $stream->write($body);
         }
+
         $this->request = new Request($uri, $method, $stream, $this->requestHeaders);
         $this->response = $this->httpClient->sendRequest($this->request);
         // Reset headers used for the HTTP request

src/RestApiContext.php

@@ -6,6 +6,7 @@
 use Behat\Behat\Context\Context;
 use Behat\Behat\Context\SnippetAcceptingContext;
 use Behat\Gherkin\Node\PyStringNode;
+use Behat\Gherkin\Node\TableNode;
 use Psr\Http\Message\RequestInterface;
 use Psr\Http\Message\ResponseInterface;
 use Rezzza\RestApiBehatExtension\Rest\RestApiBrowser;
@@ -47,6 +48,16 @@ public function iSendARequestWithBody($method, $url, PyStringNode $body)
         $this->restApiBrowser->sendRequest($method, $url, (string) $body);
     }
 
+    /**
+     * Sends HTTP request to specific URL with POST parameters.
+     *
+     * @When I send a :method request to :url with form data:
+     */
+    public function iSendAPostRequestToWithFormData($method, $url, TableNode $formData)
+    {
+        $this->restApiBrowser->sendRequest($method, $url, $formData->getRowsHash());
+    }
+
     /**
      * @param string $code status code
      *

tests/Units/Rest/RestApiBrowser.php

@@ -162,6 +162,34 @@ public function responseDataProvider()
         ];
     }
 
+    /**
+     * @dataProvider formDataUseCase
+     */
+    public function test_we_can_send_body_as_form_data($formData, $expectedBody)
+    {
+        $this
+            ->given(
+                $mockHttpAdapter = $this->mockHttpClient('http://verylastroom.com', 200, []),
+                $restApiBrowser = new SUT(null, null, $mockHttpAdapter)
+            )
+            ->when(
+                $restApiBrowser->sendRequest('POST', '/api', $formData)
+            )
+            ->then
+                ->castToString($mockHttpAdapter->getReceivedRequests()[0]->getBody())
+                    ->isEqualTo($expectedBody)
+        ;
+    }
+
+    public function formDataUseCase()
+    {
+        return [
+            [[], ''],
+            [['username' => 'jean-marc'], 'username=jean-marc'],
+            [['username' => 'jean-marc', 'password' => 'ecureuil'], 'username=jean-marc&password=ecureuil'],
+        ];
+    }
+
     /**
      * @param string $baseUrl
      * @param int $responseStatusCode