add tests for Dashboard::get_next_period - needs failing tests for #302

Author: dannyvankooten

src/class-dashboard.php

@@ -79,7 +79,7 @@ public function show(): void
         require __DIR__ . '/views/dashboard-page.php';
     }
 
-    private function get_next_period(\DateTimeImmutable $dateStart, \DateTimeImmutable $dateEnd, int $dir = 1): array
+    public function get_next_period(\DateTimeImmutable $dateStart, \DateTimeImmutable $dateEnd, int $dir = 1): array
     {
         $now = new \DateTimeImmutable('now', wp_timezone());
         $modifier = $dir > 0 ? "+" : "-";
@@ -104,6 +104,7 @@ private function get_next_period(\DateTimeImmutable $dateStart, \DateTimeImmutab
             $compareEnd = $periodEnd;
         }
 
+
         return [ $periodStart, $periodEnd, $compareEnd ];
     }
 

tests/DashboardTest.php

@@ -76,4 +76,12 @@ public function testGetDatesForRangeLastWeekWithWeekStartOnMonday(): void
         self::assertEquals([new DateTimeImmutable('2024-12-23'), new DateTimeImmutable('2024-12-29 23:59:59')], $i->get_dates_for_range(new DateTimeImmutable('2025-01-05'), 'last_week', 1));
         self::assertEquals([new DateTimeImmutable('2024-12-30'), new DateTimeImmutable('2025-01-05 23:59:59')], $i->get_dates_for_range(new DateTimeImmutable('2025-01-06'), 'last_week', 1));
     }
+
+    public function testGetNextPeriod(): void
+    {
+        $i = new Dashboard();
+
+        self::assertEquals($i->get_next_period(new DateTimeImmutable('2025-01-01'), new DateTimeImmutable('2025-01-02'), 1), [new DateTimeImmutable('2025-01-03'), new DateTimeImmutable('2025-01-04'), new DateTimeImmutable('2025-01-04')]);
+        self::assertEquals($i->get_next_period(new DateTimeImmutable('2025-01-01'), new DateTimeImmutable('2025-01-02'), -1), [new DateTimeImmutable('2024-12-30'), new DateTimeImmutable('2024-12-31'), new DateTimeImmutable('2024-12-31')]);
+    }
 }

tests/mocks.php

@@ -151,6 +151,11 @@ function _deprecated_function($function, $version, $replacement)
 {
 }
 
+function wp_timezone(): DateTimeZone
+{
+    return new DateTimeZone('UTC');
+}
+
 class wpdb_mock
 {
     public $prefix = '';