add unittest to test that the problems page does not show page, state…

…ment, sample data before contest start.

webapp/tests/Unit/Controller/Team/ProblemControllerTest.php

@@ -4,6 +4,7 @@
 
 use App\Entity\Problem;
 use App\Entity\Testcase;
+use App\Entity\Contest;
 use App\Tests\Unit\BaseTestCase;
 use Doctrine\ORM\EntityManagerInterface;
 use Generator;
@@ -183,4 +184,41 @@ public function testInteractiveSamples(): void
         $response = $this->client->getResponse();
         self::assertEquals(404, $response->getStatusCode());
     }
+
+    /**
+     * Test that the problems page does not show page, statement, sample data before contest start.
+     */
+    public function testAccessProblemBeforeContestStarts(): void
+    {
+        /** @var EntityManagerInterface $em */
+        $em = self::getContainer()->get(EntityManagerInterface::class);
+
+        $contest = $em->getRepository(Contest::class)->findOneBy(['shortname' => 'demo']);
+        $originalStartTime = $contest->getStarttimeString();
+
+        $lastSpacePosition = strrpos($originalStartTime, ' ');
+        $datetime = substr($originalStartTime, 0, $lastSpacePosition);
+        $timezone = substr($originalStartTime, $lastSpacePosition + 1);
+        $contest->setStarttimeString(date('Y-m-d H:i:s', strtotime('+3600 seconds', strtotime($datetime))) . ' ' . $timezone)->updateTimes();
+
+        $this->withChangedConfiguration('public_access_before_contest', true, function () {
+            $this->client->request('GET', '/public/problems');
+            static::assertSelectorTextContains('.nav-item .nav-link.disabled', 'Problems');
+            static::assertSelectorTextContains('.alert.alert-secondary', 'No problem texts available at this point.');
+
+            for ($i = 1; $i <= 3; $i++) {
+                $endpoints = [
+                    "/team/problems/{$i}/statement",
+                    "/team/problems/{$i}/samples.zip"
+                ];
+
+                foreach ($endpoints as $endpoint) {
+                    $this->client->request('GET', $endpoint);
+                    $statusCode = $this->client->getResponse()->getStatusCode();
+                    static::assertSame(404, $statusCode, "Expected status code 404, got {$statusCode} for {$endpoint}");
+                }
+            }
+        });
+        $contest->setStarttimeString($originalStartTime)->updateTimes();
+    }
 }