1 files changed, 35 insertions, 0 deletions
diff --git a/opendc-web/opendc-web-ui/src/util/date-time.test.js b/opendc-web/opendc-web-ui/src/util/date-time.test.js
new file mode 100644
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+++ b/opendc-web/opendc-web-ui/src/util/date-time.test.js
@@ -0,0 +1,35 @@
+import { convertSecondsToFormattedTime, parseDateTime } from './date-time'
+
+describe('date-time parsing', () => {
+    it('reads components properly', () => {
+        const dateString = '2017-09-27T20:55:01'
+        const parsedDate = parseDateTime(dateString)
+
+        expect(parsedDate.getUTCFullYear()).toEqual(2017)
+        expect(parsedDate.getUTCMonth()).toEqual(8)
+        expect(parsedDate.getUTCDate()).toEqual(27)
+        expect(parsedDate.getUTCHours()).toEqual(20)
+        expect(parsedDate.getUTCMinutes()).toEqual(55)
+        expect(parsedDate.getUTCSeconds()).toEqual(1)
+    })
+})
+
+describe('tick formatting', () => {
+    it("returns '0s' for numbers <= 0", () => {
+        expect(convertSecondsToFormattedTime(-1)).toEqual('0s')
+        expect(convertSecondsToFormattedTime(0)).toEqual('0s')
+    })
+    it('returns only seconds for values under a minute', () => {
+        expect(convertSecondsToFormattedTime(1)).toEqual('1s')
+        expect(convertSecondsToFormattedTime(59)).toEqual('59s')
+    })
+    it('returns seconds and minutes for values under an hour', () => {
+        expect(convertSecondsToFormattedTime(60)).toEqual('1m00s')
+        expect(convertSecondsToFormattedTime(61)).toEqual('1m01s')
+        expect(convertSecondsToFormattedTime(3599)).toEqual('59m59s')
+    })
+    it('returns full time for values over an hour', () => {
+        expect(convertSecondsToFormattedTime(3600)).toEqual('1h00m00s')
+        expect(convertSecondsToFormattedTime(3601)).toEqual('1h00m01s')
+    })
+})