@feature-hub/core/lib/esm/__tests__/externals-validator.test.js

Create scalable web applications using micro frontends.

import { ExternalsValidator } from '../externals-validator';
describe('ExternalsValidator', () => {
    describe('#constructor', () => {
        it('throws an error for provided externals containing an invalid version', () => {
            expect(() => new ExternalsValidator({ react: 'invalid' })).toThrow(new Error('The provided version "invalid" for the external "react" is invalid.'));
        });
        it('throws an error for provided externals containing a coercable version', () => {
            expect(() => new ExternalsValidator({ react: '2.0' })).toThrow(new Error('The provided version "2.0" for the external "react" is invalid.'));
        });
    });
    describe('#validate', () => {
        it("doesn't throw for a satisfied required external", () => {
            const validator = new ExternalsValidator({ react: '16.6.0' });
            expect(() => {
                validator.validate({ react: '^16.2.0' });
            }).not.toThrow();
        });
        it('throws an error for an unsatisfied required external (wrong version)', () => {
            const validator = new ExternalsValidator({ react: '16.6.0' });
            expect(() => {
                validator.validate({ react: '^16.7.0' });
            }).toThrow(new Error('The external dependency "react" in the required version range "^16.7.0" is not satisfied. The provided version is "16.6.0".'));
            expect(() => {
                validator.validate({ react: '^16.7.0' }, 'test-consumer');
            }).toThrow(new Error('The external dependency "react" as required by "test-consumer" in the version range "^16.7.0" is not satisfied. The provided version is "16.6.0".'));
        });
        it('throws an error for an unsatisfied required external (not provided)', () => {
            const validator = new ExternalsValidator({});
            expect(() => {
                validator.validate({ react: '^16.7.0' });
            }).toThrow(new Error('The external dependency "react" is not provided.'));
            expect(() => {
                validator.validate({ react: '^16.7.0' }, 'test-consumer');
            }).toThrow(new Error('The external dependency "react" as required by "test-consumer" is not provided.'));
        });
        it('throws an error for an invalid required external', () => {
            const validator = new ExternalsValidator({ react: '16.6.0' });
            expect(() => {
                validator.validate({ react: 'invalid' });
            }).toThrow(new Error('The external dependency "react" in the required version range "invalid" is not satisfied. The provided version is "16.6.0".'));
            expect(() => {
                validator.validate({ react: 'invalid' }, 'test-consumer');
            }).toThrow(new Error('The external dependency "react" as required by "test-consumer" in the version range "invalid" is not satisfied. The provided version is "16.6.0".'));
        });
    });
});
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