The result of calling stub is that, when where
is invoked and when it internally makes a call to what,
how is going to be called instead.
Usage
stub(where, what, how, depth = 1)
Arguments
where
Function to be called that will in turn call
what.
what
Name of the function you want to stub out (a
character string).
how
Replacement function (also a mock function)
or a return value for which a function will be created
automatically.
depth
Specifies the depth to which the function should be stubbed
Details
This is much more limited in scope in comparison to
with_mock which effectively replaces
what everywhere. In other words, when using with_mock
and regardless of the number of intermediate calls, how is
always called instead of what. However, using this API,
the replacement takes place only for a single function where
and only for calls originating in that function.