[Cashtab] Token burn functionality
1dcce06d1e8f
Actions

Description

[Cashtab] Token burn functionality

Summary:
Adding a new feature in the Token Details screen to allow the wallet holder to burn specific amount of eTokens from their address via the TokenType1.generateBurnOpReturn() api call.

new burnEtoken() function created in useBCH.js to burn eTokens via the generateBurnOpReturn() api
sendToken.js updated with the burn UI
added useBCH.js unit tests to test parsing of eToken burning transactions and burning of invalid eToken IDs
Burn notification added to Notifications.js

Manifest: T2189

Test Plan:
npm start

Frontend

navigate to the eToken info screen and click the Burn button without inputting the burn amount and verify the burn amount defaults to 1
attempt to input 0 or below, or above the eToken balance in the wallet and verify validation error is displayed
click on the max button and ensure the entirety of the token balance is inserted into the burn amount input
test with a valid burn amount and ensure the burn confirmation dialogue shows the correct eToken burn amount and eToken ticker
ensure clicking confirm on the burn confirmation dialogue with an incorrect phrase results in validation error
ensure a correct burn confirmation phrase results in the completion of the burn transaction
verify burn option is not displayed on a fresh wallet with no eTokens since the token details screen is not accessible.
verify cross browser compatibility across Chrome and Firefox

Backend

test a burn amount of minimum (> 0) value and ensure the user's eToken balance decrements accordingly
test burn amount which is within the token's decimal amount and ensure transaction is successful
test burn amount which exceeds the token's decimal amount and ensure transaction is still successful, with the token balance updated to a figure that is rounded to the token's designated decimal point
ensure the Total Burned figure is a correct tally of all previous burn transactions up to this point
test burn amount which is the entire eToken balance and stay on that same eToken screen, and ensure the user is redirected to the Wallet screen and the eToken is no longer displayed in the eTokens list
test the customized dust error message by reducing XEC balance to below dust
ensure burn function works for eTokens which existed in the wallet prior to this diff
ensure burn function works for newly created eTokens

Regression

ensure a normal send eToken transaction completes successfully
ensure a normal create eToken transaction completes successfully and is displayed correctly in the eTokens list

Extension/Mobile