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chore: fix virtualized lists tests [LW-12151]
Introduces generic and configurable utils to scan through virtualized lists and retrieve items as specific index.
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65 changes: 46 additions & 19 deletions
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packages/e2e-tests/src/assert/transaction/transactionAssetSelectionAssert.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| /* global WebdriverIO */ | ||
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| import { scrollDownWithOffset, scrollToTheTop } from './scrollUtils'; | ||
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| /** | ||
| * Scroll-scan through the active virtualized list. | ||
| * | ||
| * @param numberOfItems specify how many items should be scanned from the start of the virtualized list | ||
| * @param getVisibleElements function that should always return the currently visible elements in the list | ||
| * @param getElementId function that should return a unique identifier for every element | ||
| * @param handleNextElement iterator callback that will be invoked for every element to perform side-effects | ||
| */ | ||
| export const scanVirtualizedList = async ( | ||
| numberOfItems: number, | ||
| getVisibleElements: () => Promise<WebdriverIO.ElementArray>, | ||
| getElementId: (element: WebdriverIO.Element) => Promise<string>, | ||
| handleNextElement: (element: WebdriverIO.Element, index: number, elementId: string) => Promise<void> | ||
| ): Promise<void> => { | ||
| // scroll to the top of the visible virtualized list | ||
| await scrollToTheTop(); | ||
| // ID references to already visited elements | ||
| const iteratedElementIds: string[] = []; | ||
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| while (iteratedElementIds.length < numberOfItems) { | ||
| // get all currently visible elements in the virtualized list | ||
| const visibleElements = await getVisibleElements(); | ||
| // filter-out any already iterated elements | ||
| const newVisibleElements = await visibleElements.filter( | ||
| async (el) => !iteratedElementIds.includes(await getElementId(el)) | ||
| ); | ||
| // iterate over the new visible elements | ||
| for (const element of newVisibleElements) { | ||
| const elementId = await getElementId(element); | ||
| // notify external iterator about next element | ||
| await handleNextElement(element, iteratedElementIds.length + 1, elementId); | ||
| // save the iterated element to avoid duplications | ||
| iteratedElementIds.push(elementId); | ||
| // stop immediately when target index was reached | ||
| if (iteratedElementIds.length >= numberOfItems) break; | ||
| } | ||
| // scroll further down and continue loop | ||
| await scrollDownWithOffset(visibleElements); | ||
| } | ||
| }; | ||
|
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| /** | ||
| * Scroll-scan through the active virtualized list and return only the item at given index | ||
| * | ||
| * @param index specify which item should be returned | ||
| * @param getVisibleElements function that should always return the currently visible elements in the list | ||
| * @param getElementId function that should return a unique identifier for every element | ||
| */ | ||
| export const getVirtualizedListElementAtIndex = async ( | ||
| index: number, | ||
| getVisibleElements: () => Promise<WebdriverIO.ElementArray>, | ||
| getElementId: (element: WebdriverIO.Element) => Promise<string> | ||
| ): Promise<WebdriverIO.Element | undefined> => { | ||
| let lastElement: WebdriverIO.Element | undefined; | ||
| await scanVirtualizedList(index, getVisibleElements, getElementId, async (nextElement) => { | ||
| lastElement = nextElement; | ||
| }); | ||
| return lastElement; | ||
| }; |