Jack Westbrook
b707cd28f1
* feat(test-utils): move the toEmitValue/s jest matchers to test-utils and add test script * chore(jest): update configs to use matchers from test-utils package * ci(frontend-tests): hook up packages tests * fix(test-utils): re-export matchers from index.ts so packages that include setupTests don't error * ci(pr-frontend-unit-tests): add frontend-packages-unit-tests to list of required unit tests * Update packages/grafana-test-utils/README.md Co-authored-by: Ivana Huckova <30407135+ivanahuckova@users.noreply.github.com> --------- Co-authored-by: Ivana Huckova <30407135+ivanahuckova@users.noreply.github.com>
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905 B
Grafana test utils
This package is a collection of test utils and a mock API (using MSW) for use with core Grafana UI development.
Matchers
To add the matchers to your Jest config, import them then extend expect. This should be done in the setupFilesAfterEnv file declared in jest.config.{js,ts}.
// setupTests.ts
import { matchers } from '@grafana/test-utils';
expect.extend(matchers);
Included in this package are the following matchers:
toEmitValues
Tests that an Observable emits the expected values in the correct order. This matcher collects all emitted values (including errors) and compares them against the expected array using deep equality.
toEmitValuesWith
Tests that an Observable emits values that satisfy custom expectations. This matcher collects all emitted values and passes them to a callback function where you can perform custom assertions.