what is the difference between unit testing,integration
testing and interface testing?
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Answer Posted / navneet likhar
The big difference between the two testing methodologies is
that unit testing focuses on the internal logic of one
procedure, and integration testing tries to identify
problems that might happen when one procedure (the parent or
"outer" procedure) calls another procedure (the child or
"inner" procedure). Another important difference is that
integration testing usually follows unit testing. After
ridding two or more procedures of any internal defects, you
can integration-test the procedures by checking for defects
in the outer procedure's call statements and in any data or
error messages the inner procedure returns to the outer
procedure.
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