javascript - Matching an argument with a function in Jasmine -

i want perform custom assertion argument passed spied-on function call. can supply callback used within expectation against argument?

expect(my.method).tohavebeencalledwith(jasmine.argumentmatching(mycustomcallback), jasmine.any({})); 

... jasmine.argumentmatching(mycustomcallback) pseudo code.

jasmine spy has property .calls, provides information number of calls, arguments particular calls, etc. take @ docs section - other tracking properties. depends on requirements 1 use, , in documentation described well, in general:

• .calls.argsfor(n) - returns array of arguments n-th call
• .calls.allargs() - returns array of arrays of arguments calls

• .calls.mostrecent(), .calls.first() - return object in form:

  { object: my, args: ['foo', 42'], returnvalue: undefined } 

• .calls.all() - returns array of objects (like 1 above)

in general like:

spyon(my, 'method');  my.method('foo', 42);  expect(my.method.calls.argsfor(0)).toequal(['foo', 42]);