add sparkplug decoding to demo video

src/spec/SceneBuilder.ts

@@ -19,6 +19,7 @@ export type SceneNames =
   | 'settings'
   | 'customize_subscriptions'
   | 'keyboard_shortcuts'
+  | 'sparkplugb-decoding'
   | 'end'
 
 export class SceneBuilder {

src/spec/demoVideo.ts

@@ -21,6 +21,7 @@ import { showMenu } from './scenarios/showMenu'
 import { showNumericPlot } from './scenarios/showNumericPlot'
 import { showOffDiffCapability } from './scenarios/showOffDiffCapability'
 import { showZoomLevel } from './scenarios/showZoomLevel'
+import { showSparkPlugDecoding } from './scenarios/showSparkplugDecoding'
 
 /**
  *  A convenience method that handles gracefully cleaning up the test run.
@@ -120,6 +121,11 @@ async function doStuff() {
     await sleep(1000)
   })
 
+  await scenes.record('sparkplugb-decoding', async () => {
+    await showText('SparkplugB Decoding', 2000, page, 'top')
+    await showSparkPlugDecoding(page)
+  })
+
   // disable this scenario for now until expandTopic is sorted out
   // await scenes.record('delete_retained_topics', async () => {
   //   await hideText(page)

src/spec/scenarios/showSparkplugDecoding.ts

@@ -0,0 +1,9 @@
+import { Page } from 'playwright'
+import { expandTopic, sleep } from '../util'
+
+export async function showSparkPlugDecoding(browser: Page) {
+    // spell-checker: disable-next-line
+    await expandTopic('spBv1.0/Sparkplug Devices/DDATA/JavaScript Edge Node/Emulated Device', browser)
+    await browser.screenshot({ path: 'screen_sparkplugb_decoding.png' })
+    await sleep(1000)
+}