diff --git a/launcher/ui/themes/CatPack.cpp b/launcher/ui/themes/CatPack.cpp
index f0d8ddd55..bbcb58bc8 100644
--- a/launcher/ui/themes/CatPack.cpp
+++ b/launcher/ui/themes/CatPack.cpp
@@ -99,18 +99,22 @@ QDate ensureDay(int year, int month, int day)
 
 QString JsonCatPack::path()
 {
-    const QDate now = QDate::currentDate();
+    return path(QDate::currentDate());
+}
+
+QString JsonCatPack::path(QDate now)
+{
     for (auto var : m_variants) {
         QDate startDate = ensureDay(now.year(), var.startTime.month, var.startTime.day);
         QDate endDate = ensureDay(now.year(), var.endTime.month, var.endTime.day);
         if (startDate > endDate) {  // it's spans over multiple years
-            if (endDate <= now)     // end date is in the past so jump one year into the future for endDate
+            if (endDate < now)      // end date is in the past so jump one year into the future for endDate
                 endDate = endDate.addYears(1);
             else  // end date is in the future so jump one year into the past for startDate
                 startDate = startDate.addYears(-1);
         }
 
-        if (startDate >= now && now >= endDate)
+        if (startDate <= now && now <= endDate)
             return var.path;
     }
     return m_defaultPath;
diff --git a/launcher/ui/themes/CatPack.h b/launcher/ui/themes/CatPack.h
index fdd117a7f..1d310e796 100644
--- a/launcher/ui/themes/CatPack.h
+++ b/launcher/ui/themes/CatPack.h
@@ -52,9 +52,9 @@ class BasicCatPack : public CatPack {
    public:
     BasicCatPack(QString id, QString name) : m_id(id), m_name(name) {}
     BasicCatPack(QString id) : BasicCatPack(id, id) {}
-    virtual QString id() { return m_id; }
-    virtual QString name() { return m_name; }
-    virtual QString path();
+    virtual QString id() override { return m_id; }
+    virtual QString name() override { return m_name; }
+    virtual QString path() override;
 
    protected:
     QString m_id;
@@ -83,7 +83,8 @@ class JsonCatPack : public BasicCatPack {
         PartialDate endTime;
     };
     JsonCatPack(QFileInfo& manifestInfo);
-    virtual QString path();
+    virtual QString path() override;
+    QString path(QDate now);
 
    private:
     QString m_defaultPath;
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index a26a49fec..59e0e3144 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -56,3 +56,6 @@ ecm_add_test(Index_test.cpp LINK_LIBRARIES Launcher_logic Qt${QT_VERSION_MAJOR}:
 
 ecm_add_test(Version_test.cpp LINK_LIBRARIES Launcher_logic Qt${QT_VERSION_MAJOR}::Test
     TEST_NAME Version)
+
+ecm_add_test(CatPack_test.cpp LINK_LIBRARIES Launcher_logic Qt${QT_VERSION_MAJOR}::Test
+    TEST_NAME CatPack)
diff --git a/tests/CatPack_test.cpp b/tests/CatPack_test.cpp
new file mode 100644
index 000000000..330d1a814
--- /dev/null
+++ b/tests/CatPack_test.cpp
@@ -0,0 +1,40 @@
+#include <QTest>
+
+#include <QDate>
+#include <QFileInfo>
+#include <QList>
+#include <QTemporaryFile>
+#include "FileSystem.h"
+#include "ui/themes/CatPack.h"
+
+class CatPackTest : public QObject {
+    Q_OBJECT
+   private slots:
+    void test_catPack()
+    {
+        auto dataDir = QDir(QFINDTESTDATA("testdata/CatPacks")).absolutePath();
+        auto fileName = FS::PathCombine(dataDir, "index.json");
+        auto fileinfo = QFileInfo(fileName);
+        try {
+            auto cat = JsonCatPack(fileinfo);
+            QCOMPARE(cat.path(QDate(2023, 4, 12)), FS::PathCombine(fileinfo.path(), "oneDay.png"));
+            QCOMPARE(cat.path(QDate(2023, 4, 11)), FS::PathCombine(fileinfo.path(), "maxwell.png"));
+            QCOMPARE(cat.path(QDate(2023, 4, 13)), FS::PathCombine(fileinfo.path(), "maxwell.png"));
+            QCOMPARE(cat.path(QDate(2023, 12, 21)), FS::PathCombine(fileinfo.path(), "christmas.png"));
+            QCOMPARE(cat.path(QDate(2023, 12, 28)), FS::PathCombine(fileinfo.path(), "christmas.png"));
+            QCOMPARE(cat.path(QDate(2023, 12, 29)), FS::PathCombine(fileinfo.path(), "newyear.png"));
+            QCOMPARE(cat.path(QDate(2023, 12, 30)), FS::PathCombine(fileinfo.path(), "newyear2.png"));
+            QCOMPARE(cat.path(QDate(2023, 12, 31)), FS::PathCombine(fileinfo.path(), "newyear2.png"));
+            QCOMPARE(cat.path(QDate(2024, 1, 1)), FS::PathCombine(fileinfo.path(), "newyear2.png"));
+            QCOMPARE(cat.path(QDate(2024, 1, 2)), FS::PathCombine(fileinfo.path(), "newyear.png"));
+            QCOMPARE(cat.path(QDate(2024, 1, 3)), FS::PathCombine(fileinfo.path(), "newyear.png"));
+            QCOMPARE(cat.path(QDate(2024, 1, 4)), FS::PathCombine(fileinfo.path(), "maxwell.png"));
+        } catch (const Exception& e) {
+            QFAIL(e.cause().toLatin1());
+        }
+    }
+};
+
+QTEST_GUILESS_MAIN(CatPackTest)
+
+#include "CatPack_test.moc"
diff --git a/tests/testdata/CatPacks/index.json b/tests/testdata/CatPacks/index.json
new file mode 100644
index 000000000..b5401d230
--- /dev/null
+++ b/tests/testdata/CatPacks/index.json
@@ -0,0 +1,50 @@
+{
+    "name": "My Cute Cat",
+    "default": "maxwell.png",
+    "variants": [
+        {
+            "startTime": {
+                "day": 12,
+                "month": 4
+            },
+            "endTime": {
+                "day": 12,
+                "month": 4
+            },
+            "path": "oneDay.png"
+        },
+        {
+            "startTime": {
+                "day": 20,
+                "month": 12
+            },
+            "endTime": {
+                "day": 28,
+                "month": 12
+            },
+            "path": "christmas.png"
+        },
+        {
+            "startTime": {
+                "day": 30,
+                "month": 12
+            },
+            "endTime": {
+                "day": 1,
+                "month": 1
+            },
+            "path": "newyear2.png"
+        },
+        {
+            "startTime": {
+                "day": 28,
+                "month": 12
+            },
+            "endTime": {
+                "day": 3,
+                "month": 1
+            },
+            "path": "newyear.png"
+        }
+    ]
+}