1 files changed, 21 insertions, 0 deletions
diff --git a/opendc-web/opendc-web-server/src/main/webui/util/date-time.test.js b/opendc-web/opendc-web-server/src/main/webui/util/date-time.test.js
new file mode 100644
index 00000000..431e39f7
--- /dev/null
+++ b/opendc-web/opendc-web-server/src/main/webui/util/date-time.test.js
@@ -0,0 +1,21 @@
+import { convertSecondsToFormattedTime } from './date-time'
+
+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')
+    })
+})