35 lines
1.0 KiB
JavaScript
35 lines
1.0 KiB
JavaScript
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import { retrieveStudyMetadata } from './retrieveStudyMetadata.js';
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const fakeDicomWebServer = {};
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// Testing Promises: https://jestjs.io/docs/en/asynchronous#promises
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describe('retrieveStudyMetadata.js', () => {
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it('throws an exception if no server parameter is provided', () => {
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const callWithNoServer = () => {
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retrieveStudyMetadata(null, 'fake-study-instance-uid');
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};
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expect(callWithNoServer).toThrow(Error);
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});
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it('throws an exception if no studyInstanceUid parameter is provided', () => {
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const callWithNoStudyInstanceUid = () => {
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retrieveStudyMetadata(fakeDicomWebServer, null);
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};
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expect(callWithNoStudyInstanceUid).toThrow(Error);
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});
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it('caches and returns the same promise for identical studyInstanceUIDs', () => {
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const firstPromise = retrieveStudyMetadata(
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fakeDicomWebServer,
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'fake-study-instance-uid'
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);
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const secondPromise = retrieveStudyMetadata(
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fakeDicomWebServer,
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'fake-study-instance-uid'
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);
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expect(firstPromise).toBe(secondPromise);
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});
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});
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