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Comments on How to unittest method that involves contacting remote servers?
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How to unittest method that involves contacting remote servers?
Let's say I have this class:
class myService {
private boolean foo(T arg) { return arg == 42; }
public Response bar(U arg) {
if(foo(U.field)) {
return Response.status(Response.Status.BAD_REQUEST).build();
}
// Code that contacts a remote server
}
}
I want to unittest this with Junit. But there are some problems. I'm actually mainly interested in testing foo(), but that one is private. I could make it public, but I really don't want to do that just so that the test class can access it. I could also write a wrapper around bar() but again, it feels weird to modify the API for this purpose.
It works fine to test test cases that should fail, which in this case means that foo returns true. But in the case that foo returns false, we will reach the code that contacts remote servers, and that's not desirable.
How should I refactor this so that I can test foo via bar regardless if foo returns true or false?
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