format tests

test/src/formatting/date-format.js

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+import { expect } from 'chai';
+import { DateFormat } from 'util/formatting/date-format';
+
+describe('DateFormat', () => {
+    const dt = new Date(2020, 0, 2, 3, 4, 5, 6);
+
+    it('should format date', () => {
+        expect(DateFormat.dStr(dt)).to.eql('2 Jan 2020');
+    });
+
+    it('should format date and time', () => {
+        expect(DateFormat.dtStr(dt)).to.eql('2 Jan 2020 03:04:05');
+    });
+
+    it('should format date and time in sortable format', () => {
+        expect(DateFormat.dtStrFs(dt)).to.eql('2020-01-02T03-04-05');
+    });
+});

test/src/formatting/icon-url-format.js

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+import { expect } from 'chai';
+import { IconUrlFormat } from 'util/formatting/icon-url-format';
+
+describe('IconUrlFormat', () => {
+    it('should convert to dataurl', () => {
+        expect(IconUrlFormat.toDataUrl(new Uint8Array([1, 2]))).to.eql(
+            'data:image/png;base64,AQI='
+        );
+    });
+});