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node-redis/packages/client/lib/cluster/index.spec.ts
Evert Pot 7d2629f083 Support esModuleInterop set to false. (#1717)
* Support esModuleInterop set to false.

When testing the upcoming 4.x release, we got a bunch of typescript
errors emitted from this project.

We quickly realized this is because the library uses the esModuleInterop
flag. This makes some imports _slightly_ easier to write, but it comes
at a cost: it forces any application or library using this library to
*also* have esModuleInterop on.

The `esModuleInterop` flag is a bit of a holdover from an earlier time,
and I would not recommend using it in libraries. The main issue is that
if it's set to true, you are forcing any users of the library to also
have `esModuleInterop`, where if you keep have it set to `false` (the
default), you leave the decision to the user.

This change should have no rammifications to users with
`esModuleInterop` on, but it will enable support for those that have it
off.

This is especially good for library authors such as myself, because I
would also like to keep this flag off to not force *my* users into this
feature.

* All tests now pass!

* Move @types/redis-parser into client sub-package

and removed a comma
2021-11-15 16:52:48 -05:00

106 lines
3.1 KiB
TypeScript

import { strict as assert } from 'assert';
import testUtils, { GLOBAL } from '../test-utils';
import { ClusterSlotStates } from '../commands/CLUSTER_SETSLOT';
import { SQUARE_SCRIPT } from '../client/index.spec';
// We need to use 'require', because it's not possible with Typescript to import
// function that are exported as 'module.exports = function`, without esModuleInterop
// set to true.
const calculateSlot = require('cluster-key-slot');
describe('Cluster', () => {
testUtils.testWithCluster('sendCommand', async cluster => {
await cluster.connect();
try {
await cluster.publish('channel', 'message');
await cluster.set('a', 'b');
await cluster.set('a{a}', 'bb');
await cluster.set('aa', 'bb');
await cluster.get('aa');
await cluster.get('aa');
await cluster.get('aa');
await cluster.get('aa');
} finally {
await cluster.disconnect();
}
}, GLOBAL.CLUSTERS.OPEN);
testUtils.testWithCluster('multi', async cluster => {
const key = 'key';
assert.deepEqual(
await cluster.multi()
.set(key, 'value')
.get(key)
.exec(),
['OK', 'value']
);
}, GLOBAL.CLUSTERS.OPEN);
testUtils.testWithCluster('scripts', async cluster => {
assert.equal(
await cluster.square(2),
4
);
}, {
...GLOBAL.CLUSTERS.OPEN,
clusterConfiguration: {
scripts: {
square: SQUARE_SCRIPT
}
}
});
testUtils.testWithCluster('should handle live resharding', async cluster => {
const key = 'key',
value = 'value';
await cluster.set(key, value);
const slot = calculateSlot(key),
source = cluster.getSlotMaster(slot),
destination = cluster.getMasters().find(node => node.id !== source.id)!;
await Promise.all([
source.client.clusterSetSlot(slot, ClusterSlotStates.MIGRATING, destination.id),
destination.client.clusterSetSlot(slot, ClusterSlotStates.IMPORTING, destination.id)
]);
// should be able to get the key from the source node using "ASKING"
assert.equal(
await cluster.get(key),
value
);
await Promise.all([
source.client.migrate(
'127.0.0.1',
(<any>destination.client.options).socket.port,
key,
0,
10
)
]);
// should be able to get the key from the destination node using the "ASKING" command
assert.equal(
await cluster.get(key),
value
);
await Promise.all(
cluster.getMasters().map(({ client }) => {
return client.clusterSetSlot(slot, ClusterSlotStates.NODE, destination.id);
})
);
// should handle "MOVED" errors
assert.equal(
await cluster.get(key),
value
);
}, {
serverArguments: [],
numberOfNodes: 2
});
});