1 files changed, 96 insertions, 0 deletions
diff --git a/std/datetime/test.ts b/std/datetime/test.ts
new file mode 100644
index 000000000..ecf844a41
--- /dev/null
+++ b/std/datetime/test.ts
@@ -0,0 +1,96 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { test } from "../testing/mod.ts";
+import { assertEquals, assertThrows } from "../testing/asserts.ts";
+import * as datetime from "./mod.ts";
+
+test(function parseDateTime(): void {
+  assertEquals(
+    datetime.parseDateTime("01-03-2019 16:30", "mm-dd-yyyy hh:mm"),
+    new Date(2019, 0, 3, 16, 30)
+  );
+  assertEquals(
+    datetime.parseDateTime("03-01-2019 16:31", "dd-mm-yyyy hh:mm"),
+    new Date(2019, 0, 3, 16, 31)
+  );
+  assertEquals(
+    datetime.parseDateTime("2019-01-03 16:32", "yyyy-mm-dd hh:mm"),
+    new Date(2019, 0, 3, 16, 32)
+  );
+  assertEquals(
+    datetime.parseDateTime("16:33 01-03-2019", "hh:mm mm-dd-yyyy"),
+    new Date(2019, 0, 3, 16, 33)
+  );
+  assertEquals(
+    datetime.parseDateTime("16:34 03-01-2019", "hh:mm dd-mm-yyyy"),
+    new Date(2019, 0, 3, 16, 34)
+  );
+  assertEquals(
+    datetime.parseDateTime("16:35 2019-01-03", "hh:mm yyyy-mm-dd"),
+    new Date(2019, 0, 3, 16, 35)
+  );
+});
+
+test(function invalidParseDateTimeFormatThrows(): void {
+  assertThrows(
+    (): void => {
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      (datetime as any).parseDateTime("2019-01-01 00:00", "x-y-z");
+    },
+    Error,
+    "Invalid datetime format!"
+  );
+});
+
+test(function parseDate(): void {
+  assertEquals(
+    datetime.parseDate("01-03-2019", "mm-dd-yyyy"),
+    new Date(2019, 0, 3)
+  );
+  assertEquals(
+    datetime.parseDate("03-01-2019", "dd-mm-yyyy"),
+    new Date(2019, 0, 3)
+  );
+  assertEquals(
+    datetime.parseDate("2019-01-03", "yyyy-mm-dd"),
+    new Date(2019, 0, 3)
+  );
+});
+
+test(function invalidParseDateFormatThrows(): void {
+  assertThrows(
+    (): void => {
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
+      (datetime as any).parseDate("2019-01-01", "x-y-z");
+    },
+    Error,
+    "Invalid date format!"
+  );
+});
+
+test(function DayOfYear(): void {
+  assertEquals(1, datetime.dayOfYear(new Date("2019-01-01T03:24:00")));
+  assertEquals(70, datetime.dayOfYear(new Date("2019-03-11T03:24:00")));
+  assertEquals(365, datetime.dayOfYear(new Date("2019-12-31T03:24:00")));
+});
+
+test(function currentDayOfYear(): void {
+  assertEquals(datetime.currentDayOfYear(), datetime.dayOfYear(new Date()));
+});
+
+test({
+  name: "[DateTime] to IMF",
+  fn(): void {
+    const actual = datetime.toIMF(new Date(Date.UTC(1994, 3, 5, 15, 32)));
+    const expected = "Tue, 05 May 1994 15:32:00 GMT";
+    assertEquals(actual, expected);
+  }
+});
+
+test({
+  name: "[DateTime] to IMF 0",
+  fn(): void {
+    const actual = datetime.toIMF(new Date(0));
+    const expected = "Thus, 01 Jan 1970 00:00:00 GMT";
+    assertEquals(actual, expected);
+  }
+});