mirror of
https://github.com/kremalicious/metamask-extension.git
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117 lines
3.7 KiB
JavaScript
117 lines
3.7 KiB
JavaScript
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import { cloneDeep } from 'lodash';
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import { getChangedAccounts, getPermittedAccountsByOrigin } from './selectors';
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describe('PermissionController selectors', () => {
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describe('getChangedAccounts', () => {
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it('returns the new value if the previous value is undefined', () => {
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const newAccounts = new Map([['foo.bar', ['0x1']]]);
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expect(getChangedAccounts(newAccounts)).toBe(newAccounts);
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});
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it('returns an empty map if the new and previous values are the same', () => {
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const newAccounts = new Map([['foo.bar', ['0x1']]]);
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expect(getChangedAccounts(newAccounts, newAccounts)).toStrictEqual(
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new Map(),
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);
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});
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it('returns a new map of the changed accounts if the new and previous values differ', () => {
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// We set this on the new and previous value under the key 'foo.bar' to
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// check that identical values are excluded.
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const identicalValue = ['0x1'];
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const previousAccounts = new Map([
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['bar.baz', ['0x1']], // included: different accounts
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['fizz.buzz', ['0x1']], // included: removed in new value
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]);
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previousAccounts.set('foo.bar', identicalValue);
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const newAccounts = new Map([
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['bar.baz', ['0x1', '0x2']], // included: different accounts
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['baz.fizz', ['0x3']], // included: brand new
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]);
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newAccounts.set('foo.bar', identicalValue);
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expect(getChangedAccounts(newAccounts, previousAccounts)).toStrictEqual(
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new Map([
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['bar.baz', ['0x1', '0x2']],
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['fizz.buzz', []],
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['baz.fizz', ['0x3']],
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]),
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);
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});
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});
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describe('getPermittedAccountsByOrigin', () => {
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it('memoizes and gets permitted accounts by origin', () => {
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const state1 = {
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subjects: {
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'foo.bar': {
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origin: 'foo.bar',
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permissions: {
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eth_accounts: {
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caveats: [{ type: 'restrictReturnedAccounts', value: ['0x1'] }],
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},
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},
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},
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'bar.baz': {
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origin: 'bar.baz',
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permissions: {
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eth_accounts: {
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caveats: [{ type: 'restrictReturnedAccounts', value: ['0x2'] }],
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},
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},
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},
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'baz.bizz': {
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origin: 'baz.fizz',
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permissions: {
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eth_accounts: {
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caveats: [
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{ type: 'restrictReturnedAccounts', value: ['0x1', '0x2'] },
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],
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},
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},
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},
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'no.accounts': {
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// we shouldn't see this in the result
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permissions: {
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foobar: {},
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},
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},
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},
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};
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const expected1 = new Map([
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['foo.bar', ['0x1']],
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['bar.baz', ['0x2']],
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['baz.fizz', ['0x1', '0x2']],
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]);
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const selected1 = getPermittedAccountsByOrigin(state1);
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expect(selected1).toStrictEqual(expected1);
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// The selector should return the memoized value if state.subjects is
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// the same object
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expect(selected1).toBe(getPermittedAccountsByOrigin(state1));
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// If we mutate the state, the selector return value should be different
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// from the first.
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const state2 = cloneDeep(state1);
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delete state2.subjects['foo.bar'];
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const expected2 = new Map([
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['bar.baz', ['0x2']],
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['baz.fizz', ['0x1', '0x2']],
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]);
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const selected2 = getPermittedAccountsByOrigin(state2);
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expect(selected2).toStrictEqual(expected2);
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expect(selected2).not.toBe(selected1);
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// Since we didn't mutate the state at this point, the value should once
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// again be the memoized.
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expect(selected2).toBe(getPermittedAccountsByOrigin(state2));
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});
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});
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});
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