JPH05134896A - Automatic preparation device for program testing data - Google Patents

Abstract

PURPOSE:To shorten program testing time and to improve reliability by mecha nizing the preparation of test data flies and the verification of a processing result. CONSTITUTION:A test data file is prepared by performing various kind of definition in a data item definition means 11 and an input/output file definition means 12, defining test data preparation conditions including the number of data corresponding to the contents of the test to be executed by a data preparation condition definition means 13, and preparing the test data in a data preparation means 14 until the conditions specified by the data preparation condition definition means 13 is satisfied while checking the definition contents of the data item definition means 11 and input/output file definition means 12. When a test program 2 is executed, the contents of the file outputted by the program is checked with the contents defined by the data item definition means 11 and input/output file definition means 12 and the execution result is verified, in a execution result verification means 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for automatically creating program test data, which is suitable for improving the efficiency of a program test when creating a computer program.

[0002]

2. Description of the Related Art When testing a program that reads data from a file and performs a predetermined process, it is necessary to intentionally mix not only good data but also bad data based on program specifications. A test data file was created by inputting this from the keyboard.

Further, when the program writes the processing result to a file, the contents of the output file are output to a display device or a printing device, and it is visually verified whether or not the processing of the program is correct.

[0004]

Since the conventional program test is carried out as described above and the program is verified, the test data is devised based on the program specifications and manually input to the test data file. A large amount of time is spent before writing, and shortening this time has been a major issue. In addition, there are many cases in which the number of test data items must be reduced due to time constraints, which causes a problem of insufficient testing. Further, since verification of the processing result of the program is performed by a human system, not only a lot of time is required, but also there is a problem that the verification is easily overlooked.

An object of the present invention is to solve the above-mentioned problems of the prior art and to mechanize the creation of a test data file and the verification of the processing result, thereby shortening the program test time and enabling a reliable program test. To provide an automatic creation device.

[0006]

In order to achieve the above object, the present invention provides a data item definition means for defining an attribute including a file name and an item name, an item position, a data type, and a data range of the file. Input / output file definition means for defining the program name, the file name accessed by the program and the access classification for each item of the file, and the data creation condition for defining the test data creation condition for each file read by the program under test The definition means, the data item definition means, the input / output file definition means, the data creation means for creating a test data file based on the results defined by the data creation condition definition means, and the contents of the file obtained by the program are described above. Defined in the data item definition means and the input / output file definition means Result and the execution result verification means for verifying the processing result of the program in contrast, there is provided a program test data automatic generation apparatus having a.

[0007]

In the above means, the program test data automatic creation apparatus of the present invention makes various definitions for files and programs in the data item definition means and the input / output file definition means, and the program test to be executed by the data creation condition definition means. Define test data creation conditions such as the number of test data according to the contents of
In the data creating means, while referring to the definition contents by the data item defining means and the input / output file defining means, test data is created until a condition specified by the data creating condition defining means is reached to create a test data file,
As the program under test is executed, the execution result verification means verifies the execution result by collating the contents of the file output by the program with the contents defined in the data item definition means and the input / output file definition means.

In this way, the program test time can be greatly shortened and the quality of the program can be improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a program test data automatic generation apparatus according to an embodiment of the present invention. The device body 1 includes a CPU 3, a magnetic disk device 4, a display device 5,
The keyboard 6 and the printing device 7 are connected. on the other hand,
The device body 1 includes a data item definition routine 11, an input / output file definition routine 12, and a data creation condition definition routine 1.
3, a data creation routine 14, and an execution result verification routine 15 are stored. The magnetic disk device 4 also stores data item information 41, input / output file information 42, data creation condition information 43, a test data file 44, and other files 45.

The operation of the apparatus of FIG. 1 is an explanatory view of the data attribute of each file in FIG. 2, an explanatory view of the input / output item of each program / file of FIG. 3, and an explanatory view of the number of test data created in FIG. Follow the instructions below.

First, referring to a book such as a system specification or a program specification, the data item definition routine 11 sets the file name, item name, item position, data type, data range, required section and duplicate section shown in FIG. input. Here, the input contents are stored in the data item information 41 of the magnetic disk device 4.

Next, referring to the same book, the input / output file definition routine 12 inputs the program name and the file name to be read and written by the program. The input / output file definition routine 12 retrieves the item name corresponding to the input file name from the data item information 41 and displays it on the display device 5. The operator specifies whether each item displayed is an input, an output, or an input / output. Then, as a result of such an operation, the definition of the contents as shown in FIG. 3 is completed. This content is stored in the input / output file information 42. Then, the definition of basic information is completed by this point.

Next, the process proceeds to the data creation condition definition routine 13, in which the program name is input, and the data creation condition definition routine 13 inputs the item name input or input / output by this program and the file name thereof to the input / output file. The information 42 is retrieved and displayed on the display device 5. The operator specifies the desired number of good / defective test data for each displayed file or item. As a result, the contents as shown in FIG. 4 are completed. This content is stored in the data creation condition information 43.

Next, the data creation routine 14 operates in the procedure as shown in the process flow chart of FIG.

First, in step S1, the name of the program to be tested, that is, the name of the program under test is input. With this program name, all file names for which test data should be created are searched from the data creation condition information 43 in the next step S2, and this is stored. Next, in step S3, the number of test data items to be created is retrieved from the data creation condition information 43 for each file and stored. Then, in the next step S4, the input / output file information 42 and the data item information 41 are referred to, the data of the item read by the program is automatically created and the record is edited, and then written in the test data file 44 in step S5. .. In the case of good data, data types and data ranges that match the contents of the data item information are automatically created, and in the case of bad data, those that do not match are automatically created. The operation from the automatic data creation to the writing to the test data file is repeated until the number of test data items to be created reaches the number of test data items to be created in the determination in step S7. The same process is repeated until the end of all files in the determination of step S6. As a result of the above operation, the creation of the test data file 44 is completed.

Thereafter, the program under test 2 is executed.

Next, the execution result verification routine 15 will be described with reference to the operation flow chart of FIG.

First, the name of the program under test executed in step S11 is input, and in step S12, the file name in which the item written by this program exists is retrieved from the input / output file information 42 and stored. ..
Next, in step S13, the item position, the data type, the data range, the required section, and the overlapping section, which are the attributes of the data, are retrieved from the data item information 41 for each file and stored. Next, in step S14, the record is read from the test data file 44 and the other file 45,
In step S15, the contents of this record are compared with the attributes of the stored data to verify whether they match,
The verification result is saved in step S16. Then, when the verification of all the records is completed, the process proceeds to step S18, and the verification result and the data creation condition information 43 stored here are edited so that the number of good / unfavorable cases of the input data and the verification result can be compared, It is output to the display device 5 and the printing device 7. The same processing is repeated through step S17 until the end of all files. This allows you to verify which item in which file is incorrect. That is,
It will be possible to verify whether the processing of the program is correct.

As described above, various definitions by the data item definition means and the input / output file definition means refer to a book or the like, and simply reflect the contents of the description, and it is extremely easy to test without any thought. Data can be created. Further, the data creating means can create a large amount of data in an extremely short time, and it is easy to mix defective data. As a result, the test data creation time can be greatly shortened and the test contents can be enhanced. Further, by providing the execution result verifying means, the verification time of the program can be shortened and the reliability can be improved as compared with the verification by the human system.

In the above embodiment, the execution result is verified with respect to the file written by the program. However, even when output to a display device or a printing device, the output data is temporarily written to the file, and the same result is obtained. Can be verified. Further, although the magnetic disk device is used in the embodiment, it goes without saying that a device such as a semiconductor memory or another medium can be applied.

[0022]

As described above, according to the program test data automatic creation apparatus of the present invention, the test data file creation and the processing result verification are automatically performed. Significant reduction and improvement of program quality can be achieved.

[Brief description of drawings]

FIG. 1 is a block diagram of a program test data automatic creation device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of attributes of data in file units.

FIG. 3 is an explanatory diagram of input / output items in program units / file units.

FIG. 4 is an explanatory diagram of the number of test data items to be created.

FIG. 5 is an operation flow chart of a data creation routine.

FIG. 6 is an operation flow diagram of an execution result verification routine.

[Explanation of symbols]

 1 Device Main Body 11 Data Item Definition Routine 12 Input / Output File Definition Routine 13 Data Creation Condition Definition Routine 14 Data Creation Routine 15 Execution Result Verification Routine 2 Program Under Test 3 CPU 4 Magnetic Disk Unit 41 Data Item Information 42 Input / Output File Information 43 Data Creation condition information 44 Test data file 45 Other files 5 Display device 6 Keyboard 7 Printing device

Claims (1)

[Claims] 1. A file name and an item name of the file,
Data item definition means for defining attributes including item position, data type, data range, and input / output file definition means for defining a program name, a file name accessed by the program and an access classification for each item unit of the file, Data creation condition defining means for defining test data creation conditions for each file read by the program under test, and results defined by the data item defining means, the input / output file defining means, and the data creating condition defining means A data creating means for creating a test data file based on the program, and the contents of the file obtained by the program are compared with the results defined by the data item defining means and the input / output file defining means to verify the processing result of the program. Program test with execution result verification means Over data device for automatically creating.