Content:• Introduction. • The category-partition method: – features. – the method. – illustrations. • Other methods.
The end of functional testing• To happen disagreements between the existent behaviour of the enforced system’s map and the coveted behaviour as described in the system’s functional specification.
How to accomplish this end?• Trials have to be execute for all the system maps.• Trials have to be designed to maximise the opportunities of happening mistakes in the package.
Functional trial can be derived from 3 beginnings:1. The package specification.2. Design information. 3. The codification itself.
Partition – The standard attack• The chief thought is to partition the input sphere of map being tested. and so choice trial informations for each category of the divider. • The job of all the bing techniques is the deficiency of systematic.
The class divider method chief features:• The trial specification: – is concise and unvarying representation of the trial information for a map. – it can be easy modified. – it gives the examiner a logical manner to command the volume of trials.
The class divider method chief features ( cont. ) : • Using generator tool help us: – to provides an machine-controlled manner to bring forth thorough trials. – to avoid impossible or unwanted trials. • The method emphasizes both the specification coverage and the mistake sensing facets of proving.
A scheme for trial instance coevals1. Transform the system’s specification to be more concise and structured. 2. Decompose the specification into functional unit – to be tested independently.
3. Identify the parametric quantities and environment conditions.
A scheme for trial instance coevals ( cont )4. Find classs that characterize each
parametric quantity and environment status.5. Every class should be partitioned into distinguishable picks.
formal trial specification
A scheme for trial instance coevals ( cont )
6. trial frames – set of picks. one from each class.
trial instances –
trial frame with specificvalues for each picks.
trial books –
sequence of trial instances.
ExampleCommand: Syntax: Function: discovery discoveryThe discovery bid is used to turn up one or more case of a given form in a text file. All lines in the file that contain the form are written to standard end product. A line incorporating the form is written merely one time. regardless of the figure of times the form occurs in it. The form is any sequence of characters whose length does non transcend the maximal length of a line in the file. To include a space in the form. the full form must be enclosed in quotation marks ( “ ) . To include citation grade in the form. two quotation marks in a row ( “ “ ) must be used.
Example: happen toilet myfile show lines in the file myfile which contain john find “john smith” in myfile show lines in the file myfile which contain toilet Smith find “john”” smith” in myfile show lines in the file myfile which contain john” Smith
Parameters:Pattern size: empty individual character many character longer than any line in the file Quoting: form is quoted form is non qoated form is improperly quoated Embedded spaces: no embedded clean one embedded clean several embedded spaces
Embedded quotation marks: no embedded quotes one embedded quotes several embedded quotation marks File name: good file name no file with this name
Environments: Number of happening of form in file: none precisely one more than one Pattern occurrences on mark line: one more than one
Entire Trials frames: 1944
Test Frame – Example:Pattern size: empty Quoting: form is quoted Embedded spaces: several embedded spaces Embedded quotation marks: no embedded quotation mark File name: good file name Number of happening of form in file: none Pattern happening on mark line: 1
Parameters:Pattern size: empty individual character many character longer than any line in the file Quoting: form is quoted form is non quoted form is improperly quoted Embedded spaces: no embedded clean one embedded clean several embedded spaces
Embedded quotation marks: no embedded quotes one embedded quotes several embedded quotation marks File name: good file name no file with this name
Entire Trials frames: 678
Parameters:Pattern size: empty individual character many character longer than any line in the file Quoting: form is quoted form is non quoted form is improperly quoted Embedded spaces: no embedded clean one embedded clean several embedded spaces
Embedded quotation marks: no embedded quotes one embedded quotes several embedded quotation marks File name: good file name no file with this name
Environments: Number of happening of form in file: none [ individual ] precisely one [ belongings Match ] more than one [ belongings Match ] Pattern happenings on mark line: one [ if Match ] more than one [ if Match ]
DrumheadThe category-partition method: – is a systematic method. – the linguistic communication is concise. easy modified and can clearly be understood. – the examiner can command the size of all the trial non randomly. – the TSL is to be changed and to include more characteristics.
