JP7363164B2 - Information processing device, information processing method, and information processing program - Google Patents

Description

The present invention relates to an information processing device , an information processing method , and an information processing program.

For example, in the development of control software such as firmware to be incorporated into devices, automatic test systems and software test devices are used that automatically check the operation of the control software when it is started. With this automatic test system and software test device, operation can be confirmed using various test cases depending on the purpose. Conventional automatic test systems select test cases based on the characteristics of each test case.

For example, Patent Document 1 discloses a software testing device that provides parameters for each test case and selects a test case based on the parameters.

However, conventional automatic test systems or software test devices cannot efficiently discover faults because they do not take into account feedback from information on faults that actually occur when selecting test cases.

The present invention has been made in view of the above, and is an information processing device that can improve test efficiency compared to conventional methods by using information on current or past failures for extracting test cases. , an information processing method and an information processing program.

An information processing apparatus according to an embodiment of the present invention includes an identification unit that identifies fault information regarding a device to be subjected to a software test based on input from a user; A fault information database that manages a plurality of pieces of fault information about the equipment that is the target of a software test, and a plurality of items and a plurality of test cases that are included in the plurality of fault information about the equipment that is the target of a software test. The present invention includes a test case database that manages test case information that is associated information, and an extraction unit that extracts a test case corresponding to the identified fault information from the identified fault information.

According to the present invention, there is provided an information processing device and an information processing program that can improve the efficiency of software testing compared to the past by using failure information that has occurred in the present or in the past for test case extraction. I can do it.

FIG. 1 is a hardware configuration diagram of an information processing apparatus according to an embodiment. FIG. 2 is a functional block diagram of the information processing device according to the embodiment. FIG. 3 is a diagram showing an example of a failure information table as a failure information database. FIG. 4 is a diagram showing an example of a test case table as a test case database. FIG. 5 is a flowchart showing the flow of test case extraction processing executed by the information processing apparatus according to the embodiment.

Embodiments of an information processing device and an information processing program will be described in detail below with reference to the accompanying drawings.

The information processing device according to the present embodiment executes simulations regarding the operation of the software in various cases in order to determine whether the information processing device such as a personal computer on which the software is installed operates normally. It is a computer that does The information processing device 5 extracts test cases based on information input by the user, and executes a simulation as a test using the extracted test cases.

Note that "testing" means running a simulation regarding the operation of software in at least one case. In addition, in the following description, in order to make the description concrete, a case where the software is firmware will be taken as an example.

FIG. 1 is a hardware configuration diagram of an information processing device 5 according to an embodiment. The hardware configuration of the information processing device 5 will be described below.

As shown in FIG. 1, the information processing device 5 includes a CPU 501, a ROM 502, a RAM 503, an HD 504, an HDD (Hard Disk Drive) controller 505, a display 506, an external device connection I/F (Interface) 508, and a network I/F. F509, data bus 510, keyboard 511, pointing device 512, DVD-RW (Digital Versatile Disk Rewritable) drive 514, and media I/F 516.

Among these, the CPU 501 controls the operation of the information processing device 5 as a whole. The ROM 502 stores programs used to drive the CPU 501 such as IPL. In particular, the ROM 502 stores a dedicated program for implementing test case extraction processing. RAM 503 is used as a work area for CPU 501. The HD 504 stores various data such as programs. The HDD controller 505 controls reading and writing of various data to the HD 504 under the control of the CPU 501. The display 506 displays various information such as a cursor, menu, window, characters, or images. External device connection I/F 508 is an interface for connecting various external devices. The external device in this case is, for example, a USB (Universal Serial Bus) memory, a printer, or the like. The network I/F 509 is an interface for data communication using the communication network 100. The bus line 510 is an address bus, a data bus, etc. for electrically connecting each component such as the CPU 501 shown in FIG. 1.

Further, the keyboard 511 is a type of input means that includes a plurality of keys for inputting characters, numerical values, various instructions, and the like. The pointing device 512 is a type of input means for selecting and executing various instructions, selecting a processing target, moving a cursor, and the like. The DVD-RW drive 514 controls reading and writing of various data on a DVD-RW 513, which is an example of a removable recording medium. Note that it is not limited to DVD-RW, but may be DVD-R or the like. The media I/F 516 controls reading or writing (storage) of data to a recording medium 515 such as a flash memory.

FIG. 2 is a functional block diagram of the information processing device 5 according to the embodiment. Each function of the information processing device 5 will be explained according to the figure.

The information processing device 5 includes an input section 5a, an information storage section 5b, a test case extraction section 5c, and a test case execution section 5d.

The input unit 5a receives, for example, failure information about a device to be tested from a user. The input unit 5a is an operation panel that displays various information to the user, and is realized by the display 506, keyboard 511, and pointing device 512 shown in FIG.

The information storage section 5b has a fault information database 51b and a test case database 52b. The information storage unit 5b is realized by a ROM 502, an HD 504, and an HDD controller 505.

FIG. 3 is a diagram showing an example of a failure information table as the failure information database 51b. As shown in FIG. 3, the failure information table is a table that centrally manages a plurality of pieces of failure information created in advance based on analysis results of current or past failure trends. Here, the fault information is information including at least a fault module, a fault location, and a fault cause. Therefore, the fault information table is a database that manages at least different combinations of fault modules, fault locations, and fault causes as fault information.

Further, the fault module is an item indicating a module in which a fault has occurred among a plurality of modules that constitute the software (program) to be tested. The fault location is an item indicating in what operation of the faulty module the fault has occurred. The failure cause is an item indicating the cause of failure in the operation corresponding to a specific failure location of the failure module.

This failure information table is created in advance based on failure information found in current or past tests. By using this fault information table, you can, for example, efficiently specify the fault information related to the fault module, fault location, and cause of the fault that you are interested in from among a plurality of comprehensively created fault information. can.

FIG. 4 is a diagram showing an example of a test case table as the test case database 52b. As shown in FIG. 4, the test case table is a table that centrally manages combinations of at least fault modules, fault locations (test items), and simulation cases (test cases) for detecting faults latent in software. Here, the failure location managed by the test case table also includes detailed information about the failure location (for example, information regarding the cause of the failure). Further, the test case managed by the test case table includes detailed information (parameter range related to the fault location, etc.) that corresponds to the cause of the fault in the fault information.

This test case table is created in advance based on test results found in current or past tests. By using this test case table, it is possible to efficiently extract, for example, a test case related to a fault module or fault location of interest from among a plurality of comprehensively created test cases.

The test case extraction unit 5c specifies fault information regarding equipment targeted for software testing based on input from the user, and creates a fault information database for managing multiple pieces of fault information regarding equipment targeted for software testing. , a test case database that manages test case information, which is information that associates a plurality of items included in the plurality of fault information of the devices subject to software testing with a plurality of test cases; and a test case database that manages the identified fault information. , from which a test case corresponding to the identified fault information is extracted.

That is, the test case extracting unit 5c specifies failure information desired by the user in the failure information table shown in FIG. 3 according to the input from the user received via the input unit 5a. The test case extraction unit 5c refers to the test case table shown in FIG. 4 and extracts a test case corresponding to the identified failure information.

More specifically, the test case extracting unit 5c selects a failure with failure number “1” desired by the user in the failure information table shown in FIG. Identify information. In the fault information of this fault No. "1", a fault has occurred at the limit value of the external IF of module AAA. The test case extraction unit 5c refers to the test case table shown in FIG. 4 and extracts a test case for testing the limit value of the external IF of the module AAA, as one that corresponds to the identified failure information. In the test table shown in FIG. 4, for example, no failure occurs when the external IF of module AAA has a normal value. Therefore, the test case extraction unit 5c does not extract test cases related to the normal value of the external IF of module AAA.

The test case execution unit 5d simulates the operation of the device to be tested using the test case extracted by the test case extraction unit 5c. The test case execution unit 5d determines whether the device to be tested operates normally, based on the simulation result, as necessary.

Note that the test case extraction unit 5c and the test case execution unit 5d are realized by the CPU 501 executing a dedicated program stored in the ROM 502 on the RAM 503. However, the present invention is not limited to this example, and part or all of the test case extraction unit 5c and the test case execution unit 5d may be implemented using dedicated hardware designed to perform similar functions, such as an ASIC (Application Specific Integrated Integrated Circuit). It may be realized by a semiconductor integrated circuit such as a DSP (digital signal processor), a DSP (digital signal processor), or an FPGA (field programmable gate array), or a conventional circuit module.

(Test case extraction process)
FIG. 5 is a flowchart showing the flow of test case extraction processing executed by the information processing device 5 according to the present embodiment. The test case extraction process executed by the information processing device 5 will be described with reference to FIG. 5.

First, the test case extraction unit 5c identifies failure information based on the input from the user via the input unit 5a (step S1). This identification of the fault information is executed, for example, by specifying the fault information desired by the user from the fault information table displayed on the display 506. Alternatively, for example, the user may specify desired fault information from among the fault information searched based on at least one of "fault module", "fault location", and "fault cause", and the user may specify the desired fault information. may be specified. Furthermore, if the management number (fault number) of the desired fault information is known, the desired fault information may be specified by inputting the fault number.

In this embodiment, for example, the test case extracting unit 5c selects the failure No. “1” desired by the user in the failure information table shown in FIG. 3 according to the input from the user received via the input unit 5a. Identify fault information.

Next, the test case extraction unit 5c refers to the fault information table and extracts at least one of the "fault module", "fault location", and "fault cause" included in the identified fault information (step S2).

In this embodiment, in order to make the explanation more concrete, it is assumed that the "fault module" and "fault cause" are extracted from the identified fault information. Therefore, for example, the test case extraction unit 5c refers to the fault information table and selects "AAA" as the "fault module" included in the fault information of the identified fault No. "1". The "limit value" is extracted as the "failure cause" contained in the fault information of "."

Next, the test case extraction unit 5c refers to the test case table and extracts a test case corresponding to the extracted "fault module" and "fault cause" (step S3). That is, the test case extraction unit 5c refers to the test case table and extracts test cases in which the "fault module" matches and the "fault cause" is included in the "test item details."

For example, the test case extraction unit 5c refers to the test case table shown in FIG. Extract the containing test cases. In the example shown in FIG. 4, test case numbers "2" and "4" are extracted.

Note that at this time, since the "failure cause" is "limit value", test cases whose "test item details" include "normal value" as the "failure cause" are not extracted.

Next, the test case execution unit 5d uses the extracted test case to simulate the operation of the device to be tested (step S4). For example, the test case execution unit 5d creates a test case No. ``2'' that sets a limit value (0, 11) for the test item ``external IF_X'' of the fault module ``AAA'', and a test item of the fault module ``AAA''. For "external IF_Y", the operation of the device to be tested is simulated using test case "4" which sets the limit value (0, 101).

(effect)
In the information processing apparatus according to the present embodiment described above, based on the input from the user via the input unit 5a, failure information regarding the device to be subjected to software testing is specified, and information about the device to be subjected to software testing is determined. Manages a fault information database that manages multiple fault information of devices targeted for software testing, and test case information that is information that associates multiple test cases with multiple items included in the multiple fault information of devices targeted for software testing. A test case corresponding to the identified fault information is extracted from the test case database and the characterized fault information.

Therefore, the user can specify desired failure information from among a plurality of actually occurring failure information and extract a test case that takes into consideration feedback from the actually occurring failure information. Software failures generally occur not only in new functions, but also in parts where failures have occurred in the past or similar parts. Therefore, test cases to be executed in simulation can be extracted with priority based on information on failures that have occurred in the past. As a result, it is possible to omit unnecessary tests unrelated to fault information and to perform tests that efficiently discover faults, improving test efficiency using fault information in automatic test systems for actual device firmware. be able to.

(Modification 1)
In the embodiment described above, the "fault module" and "fault cause" are extracted from the identified fault information, and test cases containing information similar to the extracted "fault module" and "fault cause" are extracted. The case was explained using an example. However, the test case extraction process executed by the information processing device 5 according to the present embodiment is not limited to this example. For example, "fault module" and "fault location" may be extracted from the identified fault information, and test cases containing information similar to the extracted "fault module" and "fault location" may be extracted. .

(Modification 2)
In the embodiment described above, the case where the failure information database 51b and the test case database 52b are stored in the information processing device 5 is taken as an example. However, the present invention is not limited to this example, and the failure information database 51b and the test case database 52b are configured to be stored in a device (for example, a server device on a cloud) that can communicate with the information processing device 5 via a network. Good too. In such a case, the test case extraction unit 5c exchanges information with a device that can communicate with the information processing device 5 via the network, and executes the test case extraction process described above.

The programs for realizing the functions of the automatic test system 1 and the information processing device 5 described above are files in an installable or executable format and can be stored on a CD-ROM, flexible disk (FD), CD-R, or DVD ( It may be configured to be recorded and provided on a computer-readable recording medium such as a Digital Versatile Disk or USB (Universal Serial Bus), or it may be configured to be provided or distributed via a network such as the Internet. Good too. Further, various programs may be provided by being incorporated in a non-volatile recording medium such as a ROM in advance.

5 Information processing device 5a Input section 5b Information storage section 5c Test case extraction section 5d Test case execution section 501 CPU
502 ROM
503 RAM
504 HD
506 Display 508 External device connection I/F
509 Network I/F
510 Bus 511 Keyboard 512 Pointing device 514 DVD-RW drive 515 SD card 516 Media I/F

Japanese Patent Application Publication No. 2007-334630

Claims (9)

an input unit that receives input from a user to specify failure information desired by the user;
Fault information that manages a plurality of fault information that is created in advance based on a fault that has occurred in a device that is the target of a software test, and that includes a plurality of items for each of the plurality of fault information. an identification unit that identifies the failure information desired by the user from a database based on input received by the input unit;
the failure information desired by the user, which is specified by the specifying unit based on the input, from a test case database that manages test case information that is information that associates the plurality of items with test cases ; an extraction unit that extracts a test case corresponding to the failure information based on a plurality of items included in the failure information;
An information processing device comprising: The extracting unit extracts information from the test case database based on at least one item among a plurality of items included in the failure information desired by the user, which is specified by the specifying unit based on the input. , extract the test case corresponding to the relevant failure information
The information processing device according to claim 1. The test case extracted by the extraction unit is an item that matches at least one item among a plurality of items included in the failure information desired by the user specified by the identification unit based on the input. is a test case containing
The information processing device according to claim 2. The information processing apparatus according to any one of claims 1 to 3, further comprising an execution unit that simulates an operation of the device using the test case extracted by the extraction unit. The information processing apparatus according to any one of claims 1 to 4, wherein the input unit is a keyboard or a pointing device. The information processing apparatus according to any one of claims 1 to 5, wherein the failure information includes at least one of a failure module, a failure location, and a failure cause as the plurality of items. The information processing apparatus according to claim 6, wherein the test case information includes at least the cause of the failure. A method executed by an information processing device, the method comprising:
receiving input from a user specifying failure information desired by the user;
Fault information that manages a plurality of fault information that is created in advance based on a fault that has occurred in a device that is the target of a software test, and that includes a plurality of items for each of the plurality of fault information. identifying the failure information desired by the user from a database based on the input;
A plurality of items included in the failure information desired by the user specified based on the input from a test case database that manages test case information that is information that associates the plurality of items with test cases. A method of extracting a test case corresponding to the relevant failure information based on the method. to the computer,
an input function that receives input from a user to specify failure information desired by the user;
Fault information that manages a plurality of fault information that is created in advance based on a fault that has occurred in a device that is the target of a software test, and that includes a plurality of items for each of the plurality of fault information. a specific function that specifies the failure information desired by the user from a database based on input received by the input function;
Included in the failure information desired by the user specified by the specific function based on the input from a test case database that manages test case information that is information that associates the plurality of items and test cases. An extraction function that extracts test cases corresponding to the failure information based on multiple items;
An information processing program that realizes.

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