55 lines
1.6 KiB
JavaScript
55 lines
1.6 KiB
JavaScript
import { testApolloLink } from 'helpers/test_apollo_link';
|
|
import { getInstrumentationLink, FEATURE_CATEGORY_HEADER } from '~/lib/apollo/instrumentation_link';
|
|
|
|
const TEST_FEATURE_CATEGORY = 'foo_feature';
|
|
|
|
describe('~/lib/apollo/instrumentation_link', () => {
|
|
const setFeatureCategory = (val) => {
|
|
window.gon.feature_category = val;
|
|
};
|
|
|
|
afterEach(() => {
|
|
getInstrumentationLink.cache.clear();
|
|
});
|
|
|
|
describe('getInstrumentationLink', () => {
|
|
describe('with no gon.feature_category', () => {
|
|
beforeEach(() => {
|
|
setFeatureCategory(null);
|
|
});
|
|
|
|
it('returns null', () => {
|
|
expect(getInstrumentationLink()).toBe(null);
|
|
});
|
|
});
|
|
|
|
describe('with gon.feature_category', () => {
|
|
beforeEach(() => {
|
|
setFeatureCategory(TEST_FEATURE_CATEGORY);
|
|
});
|
|
|
|
it('returns memoized apollo link', () => {
|
|
const result = getInstrumentationLink();
|
|
|
|
// expect.any(ApolloLink) doesn't work for some reason...
|
|
expect(result).toHaveProp('request');
|
|
expect(result).toBe(getInstrumentationLink());
|
|
});
|
|
|
|
it('adds a feature category header from the returned apollo link', async () => {
|
|
const defaultHeaders = { Authorization: 'foo' };
|
|
const operation = await testApolloLink(getInstrumentationLink(), {
|
|
context: { headers: defaultHeaders },
|
|
});
|
|
|
|
const { headers } = operation.getContext();
|
|
|
|
expect(headers).toEqual({
|
|
...defaultHeaders,
|
|
[FEATURE_CATEGORY_HEADER]: TEST_FEATURE_CATEGORY,
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|