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Add low level traits to retrieve name, symbol, decimals and allowance in pallet-assets (#9757)

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* Add ERC20 compatible trait to retrieve name, symbol, decimals and allowance

* delegate instead of spender

* Remove erc20 trait and divide it into lower level traits

* add import

* approvals and metadata depend on fungibles

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
This commit is contained in:
girazoki
2021-10-07 16:29:48 +02:00
committed by GitHub
parent 44824ae472
commit 48a524c565
7 changed files with 317 additions and 93 deletions
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substrate/frame/assets/src/tests.rs
+34
View File
@@ -794,3 +794,37 @@ fn assets_from_genesis_should_exist() {
assert_eq!(Assets::total_supply(999), 100);
});
}
#[test]
fn querying_name_symbol_and_decimals_should_work() {
new_test_ext().execute_with(|| {
use frame_support::traits::tokens::fungibles::metadata::Inspect;
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::force_set_metadata(
Origin::root(),
0,
vec![0u8; 10],
vec![1u8; 10],
12,
false
));
assert_eq!(Assets::name(0), vec![0u8; 10]);
assert_eq!(Assets::symbol(0), vec![1u8; 10]);
assert_eq!(Assets::decimals(0), 12);
});
}
#[test]
fn querying_allowance_should_work() {
new_test_ext().execute_with(|| {
use frame_support::traits::tokens::fungibles::approvals::{Inspect, Mutate};
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
Balances::make_free_balance_be(&1, 1);
assert_ok!(Assets::approve(0, &1, &2, 50));
assert_eq!(Assets::allowance(0, &1, &2), 50);
// Transfer asset 0, from owner 1 and delegate 2 to destination 3
assert_ok!(Assets::transfer_from(0, &1, &2, &3, 50));
assert_eq!(Assets::allowance(0, &1, &2), 0);
});
}