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getApproved require the given token ID exist #1256

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Merged
nventuro merged 4 commits into from
Sep 6, 2018
Merged

getApproved require the given token ID exist #1256

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c4fe2d3
getApproved require the given token ID exist
lamengao Aug 30, 2018
0e6d2ba
Merge branch 'master' into erc721-getApproved
Sep 6, 2018
b25e67e
missing commit from merge
Sep 6, 2018
7d62c0c
clarify the test descriptions
Sep 6, 2018
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getApproved require the given token ID exist
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@lamengao
lamengao committed Aug 30, 2018
commit c4fe2d3249ff6ffaa4a9f8f6489c5901c571bf63
2 changes: 2 additions & 0 deletions contracts/token/ERC721/ERC721BasicToken.sol
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Expand Up @@ -79,10 +79,12 @@ contract ERC721BasicToken is SupportsInterfaceWithLookup, ERC721Basic {

/**
* @dev Gets the approved address for a token ID, or zero if no address set
* Reverts if the token ID does not exist
* @param _tokenId uint256 ID of the token to query the approval of
* @return address currently approved for the given token ID
*/
function getApproved(uint256 _tokenId) public view returns (address) {
require(_exists(_tokenId));
return tokenApprovals[_tokenId];
}

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6 changes: 4 additions & 2 deletions test/token/ERC721/ERC721MintBurn.behavior.js
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Expand Up @@ -91,8 +91,10 @@ function shouldBehaveLikeMintAndBurnERC721Token (accounts) {
logs = result.logs;
});

it('clears the approval', async function () {
(await this.token.getApproved(tokenId)).should.be.equal(ZERO_ADDRESS);
context('when the token ID does not exist', function () {
it('reverts', async function () {
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@nventuro nventuro Aug 30, 2018

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I find the current phrasing a bit confusing: maybe we could merge the context and it blocks, and change the description to something like 'causes getApproved to revert'?

We also may want to add a test block for getApproved, explicitly checking for this, though that could be considered part of #1148.

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@come-maiz come-maiz Sep 6, 2018

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@nventuro I made a quick attempt at clarifying the descriptions. And added a comment on #1148 to not forget about the getApproved tests.

await assertRevert(this.token.getApproved(tokenId));
});
});
});

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