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TESTING THE PROGRAM (COMPONENT TESTING (Test Environment (Driver (“Main…
TESTING THE PROGRAM
COMPONENT TESTING
Objective
To verify the object (CSU, procedure) satisfies the allocated requirements
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Definition
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Purpose: to discover discrepancies between the module’s interface specification and its actual behavior
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Test Environment
Driver
“Main program” that accepts the test case data, passes such data to the module to be tested, and then prints the relevant results
Stub
Serves to replace modules that are subordinate to the module to be tested. A stub or “dummy subprogram” uses the subordinate modules interface, may do minimal data manipulation, prints the verification of entry and then returns to the caller
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The calling of different subprograms must be carried out through a “main” procedure, known as driver
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Integration Testing
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Is an iterative process involving the testing of sub-assemblies which are repeatedly integrated into larger sub-assemblies culminating in the testing of the system as a whole
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