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import invariant from '../src';
describe('production mode', () => {
const OLD_ENV = process.env;
beforeEach(() => {
jest.resetModules(); // this is important - it clears the cache
process.env = { ...OLD_ENV };
delete process.env.NODE_ENV;
});
afterEach(() => {
process.env = OLD_ENV;
});
it('works', () => {
process.env.NODE_ENV = 'production';
expect(function() {
invariant(true, 'invariant message');
}).not.toThrow();
expect(function() {
invariant(false, 'invariant message');
}).toThrow(/invariant message/);
expect(function() {
(invariant as any)(true);
}).not.toThrow();
expect(function() {
(invariant as any)(false);
}).toThrow(/minified exception occurred/i);
});
});