Add datetime utils (denoland/deno_std#72)

Original: https://github.com/denoland/deno_std/commit/b4906387469eba24f868082b263dd44d89a40db7

1 files changed, 24 insertions, 0 deletions

diff --git a/datetime/test.ts b/datetime/test.ts
new file mode 100644
index 000000000..d5c1622cc
--- /dev/null
+++ b/datetime/test.ts
@@ -0,0 +1,24 @@
+import { test, assertEqual } from "../testing/mod.ts";
+import * as datetime from "mod.ts";
+
+test(function parseDateTime() {
+  assertEqual(
+    datetime.parseDateTime("01-03-2019 16:34", "mm-dd-yyyy hh:mm"),
+    new Date(2019, 1, 3, 16, 34)
+  );
+});
+test(function parseDate() {
+  assertEqual(
+    datetime.parseDateTime("01-03-2019", "mm-dd-yyyy"),
+    new Date(2019, 1, 3)
+  );
+});
+test(function currentDayOfYear() {
+  assertEqual(
+    datetime.currentDayOfYear(),
+    Math.ceil(new Date().getTime() / 86400000) -
+      Math.floor(
+        new Date().setFullYear(new Date().getFullYear(), 0, 1) / 86400000
+      )
+  );
+});