Added everything for Step 15: Writing a Short Date Formatter Using TDD

Formatting Categories:

Sample Input

Expected Output (for en-US)

Today

2013/02/13 12:05:20

12:05 PM

---

Yesterday

2013/02/12 12:05:20

Yesterday

---

Last 7 days

2013/02/08 12:05:20

Friday

---

Others

2011/02/05 12:05:20

Dec 5, 2011

webapp/model/DateFormatter.js

@@ -0,0 +1,50 @@
+sap.ui.define(
+  ["sap/ui/base/Object", "sap/ui/core/format/DateFormat"],
+  function (Object, DateFormat) {
+    return Object.extend("com.mrb.UI5-Testing.model.DateFormatter", {
+      constructor: function (oProperties) {
+        this.timeFormat = DateFormat.getTimeInstance(
+          {
+            style: "short",
+          },
+          oProperties.locale
+        );
+        this.weekdayFormat = DateFormat.getDateInstance(
+          {
+            pattern: "EEEE",
+          },
+          oProperties.locale
+        );
+        this.dateFormat = DateFormat.getDateInstance(
+          {
+            style: "medium",
+          },
+          oProperties.locale
+        );
+        this.now = oProperties.now;
+      },
+
+      format: function (oDate) {
+        if (!oDate) {
+          return "";
+        }
+        var iElapsedDays = this._getElapsedDays(oDate);
+        if (iElapsedDays === 0) {
+          return this.timeFormat.format(oDate);
+        } else if (iElapsedDays === 1) {
+          return "Yesterday";
+        } else if (iElapsedDays < 7) {
+          return this.weekdayFormat.format(oDate);
+        } else {
+          return this.dateFormat.format(oDate);
+        }
+      },
+
+      _getElapsedDays: function (oDate) {
+        var iElapsedMilliseconds = this.now() - oDate.getTime();
+        var fElapsedDays = iElapsedMilliseconds / 1000 / 60 / 60 / 24;
+        return Math.floor(fElapsedDays);
+      },
+    });
+  }
+);

webapp/test/unit/AllTests.js

@@ -1,3 +1,3 @@
-sap.ui.define(["./model/models", "./model/formatter", "./model/FlaggedType"], function () {
+sap.ui.define(["./model/models", "./model/formatter", "./model/FlaggedType", "./model/DateFormatter"], function () {
   "use strict";
 });

webapp/test/unit/model/DateFormatter.js

@@ -0,0 +1,61 @@
+sap.ui.define(
+  ["com/mrb/UI5-Testing/model/DateFormatter", "sap/ui/core/Locale"],
+  function (DateFormatter, Locale) {
+    var oFormatter = null;
+    QUnit.module("DateFormatter", {
+      beforeEach: function () {
+        oFormatter = new DateFormatter({
+          now: function () {
+            return new Date(2015, 2, 14, 14, 0, 0, 0).getTime();
+          },
+          locale: new Locale("en-US"),
+        });
+      },
+    });
+
+    //   QUnit.test("initial", function (assert) {
+    //     assert.ok(new DateFormatter());
+    //   });
+
+    QUnit.test("Should return empty string if no date is given", function (
+      assert
+    ) {
+      // var oFormatter = new DateFormatter();
+      var sFormattedDate = oFormatter.format(null);
+      assert.strictEqual(sFormattedDate, "");
+    });
+
+    QUnit.test("Should return time if date from today", function (assert) {
+      // var oFormatter = new DateFormatter({
+      // locale: new Locale("en-US"),
+      // });
+      var oDate = new Date(2015, 2, 14, 12, 5, 0, 0);
+      var sFormattedDate = oFormatter.format(oDate);
+      assert.strictEqual(sFormattedDate, "12:05 PM");
+    });
+
+    QUnit.test("Should return 'Yesterday' if date from yesterday", function (
+      assert
+    ) {
+      var oDate = new Date(2015, 2, 13);
+      var sFormattedDate = oFormatter.format(oDate);
+      assert.strictEqual(sFormattedDate, "Yesterday");
+    });
+
+    QUnit.test("Should return day of the week if date < 7 days ago", function (
+      assert
+    ) {
+      var oDate = new Date(2015, 2, 8);
+      var sFormattedDate = oFormatter.format(oDate);
+      assert.strictEqual(sFormattedDate, "Sunday");
+    });
+
+    QUnit.test("Should return date w/o time if date > 7 days ago", function (
+      assert
+    ) {
+      var oDate = new Date(2015, 2, 7);
+      var sFormattedDate = oFormatter.format(oDate);
+      assert.strictEqual(sFormattedDate, "Mar 7, 2015");
+    });
+  }
+);