Tests

nft.spec.ts

import { init, mint_to, get_token_uri, get_token_owner, grant_access, check_access, revoke_access, transfer_from } from '../main';
import { VMContext } from "near-sdk-as";

const ALICE = 'alice'
const BOB = 'bob'
const CAROL = 'carol'
const METADATA_URI = 'ipfs://QmTUj7kVQLxvnK8adcVhRV3GR9xxrtmHXddtKJT8AM9MqP'

describe("Initializing Contract", () => {
  it("should not allow init to be called after contract is deployed", () => {    
      VMContext.setPredecessor_account_id(ALICE)
      init()
      expect(() => {
          VMContext.setPredecessor_account_id(BOB)
          init()
      }).toThrow()
  })
})

describe("Minting", () => {
  it("should mint a new token to non-contract owner", () => {
      VMContext.setPredecessor_account_id(ALICE)        
      init()
      VMContext.setPredecessor_account_id(BOB)
      const tokenId = mint_to(CAROL, METADATA_URI)
      expect(tokenId).toBe(1);
  });
  it("should get correct token owner", () => {
      VMContext.setPredecessor_account_id(ALICE)        
      init()
      VMContext.setPredecessor_account_id(BOB)
      const tokenId = mint_to(CAROL, METADATA_URI)
      expect(tokenId).toBe(1);
      const owner = get_token_owner(tokenId)
      expect(owner).toBe(CAROL)
  })
  it("should get the tokenURI", () => {
      VMContext.setPredecessor_account_id(ALICE)        
      init()
      VMContext.setPredecessor_account_id(BOB)
      const tokenId = mint_to(CAROL, METADATA_URI)
      const metadataUri = get_token_uri(tokenId)
      expect(metadataUri).toBe(METADATA_URI)
  })
})

describe("Access", () => {
  it("should successfuly grant token acces to another user", () => {
      VMContext.setPredecessor_account_id(ALICE)        
      init()
      VMContext.setPredecessor_account_id(CAROL)
      mint_to(CAROL, METADATA_URI)
      grant_access(BOB)
      VMContext.setPredecessor_account_id(BOB)
      expect(check_access(CAROL)).toBe(true)
  });
  it("should revoke access for a user", () => {
      VMContext.setPredecessor_account_id(ALICE)        
      init()
      VMContext.setPredecessor_account_id(BOB)
      mint_to(BOB, METADATA_URI)
      grant_access(CAROL)
      revoke_access(CAROL)
      VMContext.setPredecessor_account_id(CAROL)
      expect(check_access(BOB)).toBe(false)
  })
});

describe("Transfers", () => {
  it("should transfer token owner by Alice to Bob", () => {
      VMContext.setPredecessor_account_id(ALICE)        
      init()
      VMContext.setPredecessor_account_id(BOB)
      const carolToken = mint_to(CAROL, METADATA_URI)
      expect(get_token_owner(carolToken)).toBe(CAROL)
      expect(get_token_owner(carolToken)).not.toBe(BOB)

      VMContext.setPredecessor_account_id(CAROL)
      transfer_from(CAROL, BOB, carolToken)

      expect(get_token_owner(carolToken)).toBe(BOB)
      expect(get_token_owner(carolToken)).not.toBe(CAROL)
  })
  it("allows escrowed tokens to be transferred by escrowee", () => {
      VMContext.setPredecessor_account_id(ALICE)        
      init()
      VMContext.setPredecessor_account_id(BOB)
      const carolToken = mint_to(CAROL, METADATA_URI)
      expect(get_token_owner(carolToken)).toBe(CAROL)
      expect(get_token_owner(carolToken)).not.toBe(BOB)

      VMContext.setPredecessor_account_id(BOB)
      transfer_from(CAROL, BOB, carolToken)

      expect(get_token_owner(carolToken)).toBe(BOB)
      expect(get_token_owner(carolToken)).not.toBe(CAROL)
  })
});