Added date and time utilities.

src/utils/__tests__/datetime.test.js

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2019 CZ.NIC z.s.p.o. (http://www.nic.cz/)
+ *
+ * This is free software, licensed under the GNU General Public License v3.
+ * See /LICENSE for more information.
+ */
+
+import { toLocaleDateString } from "../datetime";
+
+describe("toLocaleDateString", () => {
+    it("should work with different locale", () => {
+        global.ForisTranslations = { locale: "fr" };
+        expect(
+            toLocaleDateString("2020-02-20T12:51:36+00:00")
+        ).toBe("20 février 2020 12:51");
+        global.ForisTranslations = { locale: "en" };
+    })
+
+    it("should convert with default format", () => {
+        expect(
+            toLocaleDateString("2020-02-20T12:51:36+00:00")
+        ).toBe("February 20, 2020 12:51 PM");
+    });
+
+    it("should convert with custom input format", () => {
+        expect(
+            toLocaleDateString(
+                "2020-02-20 12:51:36 +0000",
+                { inputFormat: "YYYY-MM-DD HH:mm:ss Z" },
+            )
+        ).toBe("February 20, 2020 12:51 PM");
+    });
+
+    it("should convert with custom output format", () => {
+        expect(
+            toLocaleDateString(
+                "2020-02-20T12:51:36+00:00",
+                { outputFormat: "LL" },
+            )
+        ).toBe("February 20, 2020");
+    });
+
+    it("should convert with custom input and output format", () => {
+        expect(
+            toLocaleDateString(
+                "2020-02-20 12:51:36 +0000",
+                { inputFormat: "YYYY-MM-DD HH:mm:ss Z", outputFormat: "LL" },
+            )
+        ).toBe("February 20, 2020");
+    });
+});