From 118af92ebcb831e33f76c4a550b45f241f898204 Mon Sep 17 00:00:00 2001
From: dmachehin <dmachehin@promopult.ru>
Date: Wed, 6 Oct 2021 14:03:58 +0300
Subject: [PATCH 1/2] Schema\TypeFormats\StringDate: fix check + add tests

---
 src/Schema/TypeFormats/StringDate.php       |  7 ++-
 tests/Schema/TypeFormats/StringDateTest.php | 54 +++++++++++++++++++++
 2 files changed, 60 insertions(+), 1 deletion(-)
 create mode 100644 tests/Schema/TypeFormats/StringDateTest.php

diff --git a/src/Schema/TypeFormats/StringDate.php b/src/Schema/TypeFormats/StringDate.php
index 6bf8a65a..719000d7 100644
--- a/src/Schema/TypeFormats/StringDate.php
+++ b/src/Schema/TypeFormats/StringDate.php
@@ -15,6 +15,11 @@ public function __invoke($value): bool
     {
         // full-date notation as defined by RFC 3339, section 5.6, for example, 2017-07-21
 
-        return DateTime::createFromFormat('Y-m-d', $value) !== false;
+        $datetime = DateTime::createFromFormat('Y-m-d', $value);
+        if ($datetime === false) {
+            return false;
+        }
+
+        return $datetime->format('Y-m-d') == $value;
     }
 }
diff --git a/tests/Schema/TypeFormats/StringDateTest.php b/tests/Schema/TypeFormats/StringDateTest.php
new file mode 100644
index 00000000..17b47784
--- /dev/null
+++ b/tests/Schema/TypeFormats/StringDateTest.php
@@ -0,0 +1,54 @@
+<?php
+
+declare(strict_types=1);
+
+namespace League\OpenAPIValidation\Tests\Schema\TypeFormats;
+
+use League\OpenAPIValidation\Schema\TypeFormats\StringDate;
+use PHPUnit\Framework\TestCase;
+
+final class StringDateTest extends TestCase
+{
+    /**
+     * @dataProvider dateGreenDataProvider
+     */
+    public function testGreendateTypeFormat(string $date): void
+    {
+        $this->assertTrue((new StringDate())($date));
+    }
+
+    /**
+     * @return string[][]
+     */
+    public function dateGreenDataProvider(): array
+    {
+        return [
+            ['1985-04-12'],
+            ['1937-01-01'],
+            ['1996-12-19'],
+            ['1990-12-31'],
+        ];
+    }
+
+    /**
+     * @dataProvider dateRedDataProvider
+     */
+    public function testRedDateTypeFormat(string $date): void
+    {
+        $this->assertFalse((new StringDate())($date));
+    }
+
+    /**
+     * @return string[][]
+     */
+    public function dateRedDataProvider(): array
+    {
+        return [
+            ['2021-0-32'],
+            ['2021-09-32'],
+            ['0000-00-00'],
+            [''],
+            ['somestring'],
+        ];
+    }
+}

From 4445d5af527aa03a6fb165a7b96b000c19dacd31 Mon Sep 17 00:00:00 2001
From: dmachehin <dmachehin@promopult.ru>
Date: Wed, 6 Oct 2021 16:19:25 +0300
Subject: [PATCH 2/2] Schema\TypeFormats\StringDate: fix compare

---
 src/Schema/TypeFormats/StringDate.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Schema/TypeFormats/StringDate.php b/src/Schema/TypeFormats/StringDate.php
index 719000d7..f36774b7 100644
--- a/src/Schema/TypeFormats/StringDate.php
+++ b/src/Schema/TypeFormats/StringDate.php
@@ -20,6 +20,6 @@ public function __invoke($value): bool
             return false;
         }
 
-        return $datetime->format('Y-m-d') == $value;
+        return $datetime->format('Y-m-d') === $value;
     }
 }