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This looks like a duplicate of the Basic Calculator kata.
JavaScript (possibly others)
fixed / random testsshould have a test like (5, 5, '-') which should return the calculation of zero, otherwise incorrect solutions like this solution can pass the kataThis comment is hidden because it contains spoiler information about the solution
Python tests are not complete enough and allow solutions like this one to pass. There should be random tests with the first (one and/or both) arguments not being numbers and valid operators other than
+.This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution