Lec 10 Integration Testing- 1 CSCE 747 Fall 2013

CSCE 747 Software Testing and Quality Assurance

Lecture 10 – Integration Testing

9/30/2013 1

Lec 10 Integration Testing- 2 CSCE 747 Fall 2013 2

Last Time Integration & System

Testing Part III Levels of Testing Ch 12, pp

181-199

Today Integration & System

Testing Part III Integration Testing

Ch 13, pp 201-227

Jorgensen, Paul C. Software Testing A Craftsman Approach

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Table 13.1 SATM Units

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SATM Functional Decomposition

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A Craftsman Approach

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SATM Call Graph

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Stubs for Top Down Integration

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Figure 13.3 Top-down Integration

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Figure 13.3 Top-down Integration

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Figure 13.3 Top-down Integration

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Bottom-Up Integration

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Sandwich Integration

John Montagu, 4th Earl of Sandwich

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Call Based Graph Integration

Pairwise integration

Neighborhood integration InteriorNodes =

nodes – sources – sinks

Neighborhoods Interior+source

nodeJorgensen, Paul C. Software Testing

A Craftsman Approach

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Neighborhood Integration

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Path Based Integration

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New and Extended Concepts

Definition: A source node in a program is a statement at which program execution begins or resumes.

Definition: A sink node in a program is a statement at which program execution stops.

Definition: A module execution path is a sequence of statements that begins with a source node and ends with a sink node, with no intervening sink nodes.

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Definition: A message is a programming language mechanism by which one unit transfers control to another unit.

Definition: An MM-Path is an interleaved sequence of module execution paths and messages.

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Fig 13.8 MM-Paths across three Units

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Definition: Given a set of units, their MM-Path graph is the directed graph in which nodes are module execution paths and edges correspond to messages and returns from one unit to another.

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Figure 13.10 Data Quiescence

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SATM code

Jorgensen, Paul C. Software Testing A Craftsman Approach

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A Craftsman Approach

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A Craftsman Approach

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A Craftsman Approach

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A Craftsman Approach

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A Craftsman Approach

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A Craftsman Approach

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UML Sequence Diagram a sample MM-Path

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MM-Path directed graphs

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Call Graph of “Integration” Version

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SATM Integration Version

Function isLeapYear(year) lastDayOfMonth( ) getDate()

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isLeap()

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lastDayOfMonth

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validDate()

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Decomposition Based Integration

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Call Graph Based Integration

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MM-Path-Based Integration

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Table13.4 Comparison of Integration Testing Strategies

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A Craftsman Approach