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setupExitSignals.test.js
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setupExitSignals.test.js
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'use strict';
const setupExitSignals = require('../../../lib/utils/setupExitSignals');
describe('setupExitSignals', () => {
let server;
let exitSpy;
const signals = ['SIGINT', 'SIGTERM'];
beforeAll(() => {
exitSpy = jest.spyOn(process, 'exit').mockImplementation(() => {});
server = {
close: jest.fn((callback) => {
callback();
}),
};
});
afterEach(() => {
exitSpy.mockReset();
server.close.mockClear();
signals.forEach((signal) => {
process.removeAllListeners(signal);
});
});
signals.forEach((signal) => {
it(`should exit process (${signal}, server never defined)`, (done) => {
setupExitSignals({
server: null,
});
process.emit(signal);
setTimeout(() => {
expect(exitSpy.mock.calls.length).toEqual(1);
done();
}, 1000);
});
it(`should close server, then exit process (${signal}, server defined before signal)`, (done) => {
const serverData = {
server: null,
};
setupExitSignals(serverData);
setTimeout(() => {
serverData.server = server;
process.emit(signal);
}, 500);
setTimeout(() => {
expect(server.close.mock.calls.length).toEqual(1);
expect(exitSpy.mock.calls.length).toEqual(1);
done();
}, 1500);
});
});
});