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re-write dns test to give better failure errors #347

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re-write dns test to give better failure errors #347

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42 changes: 16 additions & 26 deletions src/__test__/connection/dns.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -36,41 +36,31 @@ optionalDescribe(!!process.env.EVENTSTORE_CLOUD_ID)("dns discover", () => {
])("%s", (clientType, createClient) => {
test("should successfully connect", async () => {
const client = createClient();

const appendResult = await client.appendToStream(STREAM_NAME, event);
const readResult = await collect(
client.readStream(STREAM_NAME, { maxCount: 10 })
);

expect(appendResult).toBeDefined();
expect(readResult).toBeDefined();
await expect(
client.appendToStream(STREAM_NAME, event)
).resolves.toBeDefined();
await expect(
collect(client.readStream(STREAM_NAME, { maxCount: 10 }))
).resolves.toBeDefined();
});

describe("should connect to specified preference", () => {
test("leader", async () => {
const client = createClient("leader");
const appendResult = await client.appendToStream(
`${clientType}-leader-test`,
jsonTestEvents(),
{ requiresLeader: true }
);

expect(appendResult).toBeDefined();
await expect(
client.appendToStream(`${clientType}-leader-test`, jsonTestEvents(), {
requiresLeader: true,
})
).resolves.toBeDefined();
});

test("follower", async () => {
const client = createClient("follower");

try {
const appendResult = await client.appendToStream(
`${clientType}-leader-test`,
jsonTestEvents(),
{ requiresLeader: true }
);
expect(appendResult).toBe("unreachable");
} catch (error) {
expect(error).toBeInstanceOf(NotLeaderError);
}
await expect(
client.appendToStream(`${clientType}-leader-test`, jsonTestEvents(), {
requiresLeader: true,
})
).rejects.toThrow(NotLeaderError);
});
});
});
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