I have a function, addWord(word:string), which prohibits the same Context.sender from adding more than one consecutive word. I store the last signee in the contract. Forgive me if there are some syntax errors in the code below, I only added parts of my current code.
export class Contract {
private lastSignedBy: string = '';
private words: PersistentVector<string> = new PersistentVector<string>('w');
@mutateState()
addWord(word: string): number {
// can't add more than one consecutive word
if(this.lastSignedBy != Context.sender){
this.words.push(word);
this.lastSignedBy = Context.sender;
return 1;
}
return 0;
}
}
Now, I want to test this function, but I don't know how to change the sender in the test. I think Maybe I need to mock the Context, but I'm not sure how to do that. The test framework is as-pect
Here is my current test.
let contract: Contract;
beforeEach(() => {
contract = new Contract();
});
describe('Contract', () => {
it('can add word if different sender than last time', () => {
expect(contract.addWord('word one')).toStrictEqual(1);
// TODO change Context.sender somehow.
expect(contract.addWord('second word')).toStrictEqual(1);
});
}
You can use a reference to VMContext like this
import { VMContext } from "near-sdk-as";
...
it("provides access to most recent player", () => {
VMContext.setSigner_account_id('player1')
});