3 files changed, 78 insertions, 5 deletions

diff --git a/src/App.php b/src/App.php
index a155017..1a12f6a 100644
--- a/src/App.php
+++ b/src/App.php
@@ -257,9 +257,14 @@ class App
    */
   public function validateSingleField($field)
   {
+    $value = $_POST[$field['name']] ?? '';
     $field['is_valid'] = true;
 
-    if (($field['required'] ?? false) && empty($_POST[$field['name']])) {
+    if (isset($field['required']) && empty($value)) {
+      $field['is_valid'] = false;
+    }
+
+    if (isset($field['validation']['pattern']) && preg_match_all('/' . $field['validation']['pattern'] . '/', $value) === 0) {
       $field['is_valid'] = false;
     }
 
diff --git a/templates/form-paged/fields/second.toml b/templates/form-paged/fields/second.toml
index bbc6ea7..cdeb9f0 100644
--- a/templates/form-paged/fields/second.toml
+++ b/templates/form-paged/fields/second.toml
@@ -1,3 +1,17 @@
 [field.text]
 placeholder = "Text placeholder"
 
+[field.text.validation]
+pattern = "\\w+"
+
+[field.manythings]
+type = "select"
+
+[field.manythings.options]
+first = "First level"
+second = "Second level"
+
+[field.multiplethings]
+type = "checkbox"
+options = ["thing-1", "thing-2", "thing-3"]
+
diff --git a/tests/Test.php b/tests/Test.php
index 798a74d..abb4749 100644
--- a/tests/Test.php
+++ b/tests/Test.php
@@ -96,6 +96,20 @@ class Test extends TestCase
     file_put_contents($contentRoot . '/customername/pagedform/fields/second.toml', <<<EOF
     [field.text]
     placeholder = "Text placeholder"
+
+    [field.text.validation]
+    pattern = "\\\d+"
+
+    [field.manythings]
+    type = "select"
+
+    [field.manythings.options]
+    first = "First level"
+    second = "Second level"
+
+    [field.multiplethings]
+    type = "checkbox"
+    options = ["thing-1", "thing-2", "thing-3"]
     EOF);
     file_put_contents($contentRoot . '/customername/pagedform/fields/email.toml', <<<EOF
     type = "email"
@@ -114,11 +128,11 @@ class Test extends TestCase
     EOF);
   }
 
-  public function request($method, $path): GuzzleHttpResponse
+  public function request($method, $path, $options = []): GuzzleHttpResponse
   {
     $response = null;
     try {
-      $response = $this->client->request($method, $path, ['http_errors' => false]);
+      $response = $this->client->request($method, $path, ['http_errors' => false] + $options);
     } catch (\Exception $e) {}
 
     return $response;
@@ -150,7 +164,8 @@ class Test extends TestCase
     $this->assertEquals(Response::HTTP_OK, $pagedformResponse->getStatusCode());
   }
 
-  public function testFields() {
+  public function testFields()
+  {
     $formnameResponse = $this->request('GET', 'customername/formname/fields?key=' . $this->apiKey);
     $formnameBody = json_decode((string)$formnameResponse->getBody(), true)['data'];
     $this->assertArrayHasKey('name', $formnameBody);
@@ -162,7 +177,8 @@ class Test extends TestCase
     $this->assertArrayHasKey('required', $formnameBody['email']);
   }
 
-  public function testFieldsPaged() {
+  public function testFieldsPaged()
+  {
     // all pages
     $pagedformResponse = $this->request('GET', 'customername/pagedform/fields?key=' . $this->apiKey);
     $pagedformBody = json_decode((string)$pagedformResponse->getBody(), true)['data'];
@@ -187,6 +203,44 @@ class Test extends TestCase
     $this->assertArrayNotHasKey('second', $pagedformBody);
     $this->assertArrayHasKey('date', $pagedformBody);
     $this->assertArrayHasKey('text', $pagedformBody);
+    $this->assertArrayHasKey('first', $pagedformBody['manythings']['options']);
+    $this->assertEquals('thing-2', $pagedformBody['multiplethings']['options'][1]);
+  }
+
+  public function testValidation()
+  {
+    $response = $this->request('POST', 'customername/pagedform/submit?key=' . $this->apiKey, [
+      'form_params' => [
+	'name' => 'NAME',
+	'email' => 'EMAIL',
+	'date' => 'DATE',
+	'text' => '123',
+	'manythings' => 'second',
+	'multiplethings' => [
+	  'thing-1', 'thing-3',
+	],
+      ],
+    ]);
+    $body = json_decode((string)$response->getBody(), true);
+    $this->assertArrayNotHasKey('error', $body);
+    $body = $body['data'];
+    $this->assertEquals(true, $body['one']['email']['is_valid']);
+    $this->assertEquals(true, $body['second']['date']['is_valid']);
+    $this->assertEquals(true, $body['second']['text']['is_valid']);
+
+    $response = $this->request('POST', 'customername/pagedform/submit?key=' . $this->apiKey, [
+      'form_params' => [
+	'name' => 'NAME',
+	'date' => 'DATE',
+	'text' => 'einszweidrei',
+      ],
+    ]);
+    $body = json_decode((string)$response->getBody(), true);
+    $this->assertArrayHasKey('error', $body);
+    $body = $body['data'];
+    $this->assertEquals(false, $body['one']['email']['is_valid']);
+    $this->assertEquals(true, $body['second']['date']['is_valid']);
+    $this->assertEquals(false, $body['second']['text']['is_valid']);
   }
 }