The fundamental rule for testing functions requires that every function be tested in an already fully tested and debugged program. How can this be accomplished?
a) Impossible! The main function must have all the functions it calls attached to get
it to compile and run properly.
b) The main function is tested with stub functions replacing each` function.
c) Write drivers for the stub functions to test them.
d) Add each non-stub function in turn for testing.
e) Write drivers for the function implementations one at a time to test them
independently.
b) The main function is tested with stub functions replacing each` function.
d) Add each non-stub function in turn for testing.
e) Write drivers for the function implementations one at a time to test them
independently.
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Assume that, in addition to the operations read(x) and write(x), a database has the operation increment(x,C), which (atomically) increments the value stored in record x by the constant C, which might be positive or negative. Design a conflict table for these operations for use in an immediate-update pessimistic concurrency control.
What will be an ideal response?