From a terminal, run npm test.
| mod | desc |
|---|---|
moduleA |
has a default export and a named export |
moduleB |
has a default export and a named export |
ComponentA |
imports the named export from moduleA, also react-router/browserHistory |
ComponentB |
imports the named export from moduleA, also react-router/browserHistory |
moduleA has a manual mock that stubs the behaviour of the named export.
This should be used by ComponentA because it explicitly calls jest.mock() - which is
verified by the console log from ComponentA.spec.js.
So a manual mock of a module under src works as expected.
Both ComponentA and ComponentB also import browserHistory from the 'react-router' package. A manual mock
is set up to use a jest spy for the replace function. ComponentA.spec.js explicitly calls jest.mock() on
react-router, so it should be using the manual mock, which is verified by the console log. ComponentB.spec.js does not
call jest.mock() on react-router, so it is expected that browserHistory.replace will not be a mock function. However
the console shows that it is the manual mock.
So a manual mock of a node_modules package does not work as expected.
Hopefully my implementation of the manual mocks is just incorrect, in which case I would be happy to help improve the docs for this area.