CN114205261B - Automatic test method for correctness of network communication data and storage medium - Google Patents
Automatic test method for correctness of network communication data and storage medium Download PDFInfo
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- CN114205261B CN114205261B CN202010874637.9A CN202010874637A CN114205261B CN 114205261 B CN114205261 B CN 114205261B CN 202010874637 A CN202010874637 A CN 202010874637A CN 114205261 B CN114205261 B CN 114205261B
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- 238000010998 test method Methods 0.000 title claims abstract description 30
- 238000012360 testing method Methods 0.000 claims abstract description 62
- 238000013515 script Methods 0.000 claims abstract description 53
- 238000012795 verification Methods 0.000 abstract description 7
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0847—Transmission error
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
Abstract
The invention provides an automatic test method for network communication data correctness and a storage medium, wherein the automatic test method is based on comparison of data received and transmitted by a terminal receiving and transmitting data in a communication network, and meanwhile, under the condition of data acquisition and comparison without external equipment, the automatic test method can meet the data correctness test of multiple communication types. Through script control, the automatic test effect of the correctness of the communication data of the communication network in different communication modes such as MVB, WTB and Ethernet can be realized, and the test efficiency and the regularity are effectively improved. Through the simplicity, the repeatability and the experience of the test, the complex construction of a test environment is eliminated, the quick response can be realized, the basic function and the long-time stable verification can be performed, and the comprehensiveness and the accuracy of the test are strictly ensured through the automatic result analysis.
Description
Technical Field
The invention belongs to the technical field of communication data testing, and particularly relates to an automatic testing method for network communication data correctness and a storage medium.
Background
Communication modes of communication networks such as rail traffic industry and the like are common in MVB, WTB, ethernet, CAN, HDLC and the like, so that various kinds of communication need to verify whether communication data are correct, and therefore an automatic test method and a test environment construction method for verifying the correctness of the communication data with relatively high efficiency are necessary to complete the task.
However, at present, the correctness of communication data in the communication modes is verified by a black box mode, mainly, a tester actively transmits fixed data to a test device through a source terminal, and then the test device receives the data and compares the received data to realize the verification of the communication data.
Disclosure of Invention
In view of this, the invention provides an automated testing method for correctness of network communication data and a storage medium, so as to solve the problems of low accuracy of correctness verification and low testing efficiency of verification of the existing network communication data.
An automatic test method for correctness of network communication data is used for testing correctness of communication data sent by a first network terminal to a second network terminal, and comprises the following steps:
in the stage of testing the correctness of the network communication data, the first network terminal sends preset data to the second network terminal,
the second network terminal compares the received data with the first preset data,
the results of the comparison are recorded as a result of the test.
Preferably, the method also comprises configuring a first script of the first network terminal, driving the first network terminal to send the first preset data through the first script,
and configuring a second script of the second network terminal according to the first script, so that the second network terminal obtains the first preset data sent by the first network terminal, drives the second network terminal to receive the data through the second script, and drives the second network terminal to compare the received data with the first preset data through the second script.
Preferably, the first script is configured in such a way that: filling the first preset data in the data bits of the communication frame which the first network terminal needs to send to the second network terminal,
the first script drives the pre-first network terminal to send the communication frame to the second network terminal.
Preferably, the first preset data is data of N bytes, and values corresponding to the 1 st byte to the N th byte in the N bytes are sequentially increased.
Preferably, the second network terminal compares each received frame data with the first preset data according to a byte-by-byte comparison mode.
Preferably, the step of recording the result of the comparison is:
when the comparison result indicates that the data received by the second network terminal is the same as the first preset data, judging that the current communication data between the first network terminal and the second network terminal is correct data, continuing to perform the correctness test of the communication data of the next frame,
when the comparison result indicates that the data received by the second network terminal is different from the first preset data, judging that the current communication data between the first network terminal and the second network terminal is incorrect data, recording the comparison result in a text form, and storing the record in the second network terminal.
Preferably, the communication network where the first network terminal and the second network terminal are located further comprises a third network terminal for transmitting communication data to the second network terminal, the automated test method further comprises testing the correctness of the communication data transmitted by the third network terminal to the second network terminal,
the step of testing the correctness of the communication data sent by the third network terminal to the second network terminal comprises the following steps:
in the test stage, a third script of the third network terminal is configured, the third script drives the third network terminal to send second preset data to the second network terminal,
the second network terminal judges whether the data transmitted by the first network terminal or the data transmitted by the third network terminal is currently received according to the network port marking bit in the received communication frame, if the data transmitted by the first network terminal is received, the data currently received by the second network terminal is compared with the first preset data, otherwise, the data currently received by the second network terminal is compared with the second preset data,
preferably, the third script is configured according to the first script, so that the second preset data is identical to the first preset data.
Preferably, the first network terminal and the second network terminal are two embedded network terminals in a train communication network, and in a normal working stage of the train communication network, the first network terminal is used for sending data related to the train to the second network terminal,
the communication mode of the train network is one of MVB communication, WTB communication, ethernet communication, CAN communication and HDLC communication.
A storage medium being a readable storage medium, which when executed by a processor implements the automated test method of any of the preceding claims.
The invention has the beneficial effects that: according to the automatic testing method provided by the invention, the data received and transmitted by the terminal itself receiving and transmitting data in the communication network are compared, and meanwhile, under the condition of data acquisition and comparison without external equipment, the correctness test of the data of various communication types is satisfied. Through script control, the automatic test effect of the correctness of the communication data of the communication network in different communication modes such as MVB, WTB and Ethernet can be realized, and the test efficiency and the regularity are effectively improved. Through test simplicity, repeatability and experience, the complex test environment construction is eliminated, the quick response can be realized, the basic function and long-time stable verification can be performed, and the comprehensiveness and accuracy of the test are strictly ensured through automatic result analysis.
Drawings
FIG. 1 is a flow chart of an automated test method for correctness of network communication data according to the present invention;
FIG. 2 is a schematic diagram of a first communication network adapted to the automated testing method provided by the present invention;
fig. 3 is a schematic structural diagram of a second communication network adapted to the automated testing method provided by the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure. In addition, in the context of the present embodiment, "the …" refers to only technical features or characteristics of the present invention.
Since the present invention is mainly described by way of example in a train communication network, prior to the description, we exemplify the following definitions related to the description of the present invention:
train network equipment: the equipment for controlling and communicating on the train is called train network equipment, and mainly processes data communication and forwarding on the train.
Automated testing: and (3) automatizing software testing, wherein the software testing is to run a system or an application program under preset conditions, evaluate the running result and the pre-conditions comprise normal conditions and abnormal conditions.
WTB stranded wire train bus: the bus is mainly used for train-level communication, can realize transmission of process data and message data, and has the biggest characteristics of having a train initial operation function, and is particularly suitable for train vehicles needing dynamic grouping.
MVB multifunctional vehicle bus: the serial data communication bus is mainly used for serial data communication buses between interconnection devices with interoperability and interchangeability requirements.
Communication frame: frames depict the structure of data transmitted over a communication channel in the form of a serial stream. In serial communication, data is transmitted in a stream from a source to a destination. Both systems maintain the current communication session in common. The data stream is divided into frames consisting of a start bit, several data bits and 1 stop bit.
The correctness of communication data needs to verify basic communication functions and long-time stability, and no perfect automatic detection mode exists at present so as to ensure that the basic communication functions and long-time automatic stability test can be rapidly and effectively carried out under the condition of no external accompanying equipment. Therefore, the invention provides an automatic test method for the correctness of the network communication data, which supports the communication modes of MVB, WTB, ethernet and the like and comprehensively improves the test accuracy and efficiency of the correctness of the communication data. The automatic test method provided by the invention is particularly suitable for a train communication network, so that the invention concept of the invention is specifically described below mainly based on the correctness test of communication data of the train communication network and with reference to fig. 1 to 3. Fig. 1 is a flow chart of an automatic test method for correctness of network communication data according to the present invention, fig. 2 is a schematic diagram of a first communication network terminal adapted to the automatic test method according to the present invention, and fig. 3 is a schematic diagram of a second communication network adapted to the automatic test method according to the present invention. The first communication network terminal and the second communication network terminal may be train communication networks in different communication modes.
When we need to send communication data to the second network terminal through the first network terminal, we need to test the correctness of the communication data between the first network terminal and the second network terminal first, so we need to test the communication data in a testing stage before the first network terminal and the second network terminal enter into the normal working state of correct communication. The automatic test method provided by the invention has the greatest difference with the prior art that external test equipment is not needed in the test process, and the automatic test of the correctness of the communication data is finished by the tested equipment (the first network terminal and the second network terminal) by the software control mode only through configuring the script of the corresponding network terminal. The communication data can be periodically subjected to a correctness verification test, and in the test stage, the first network terminal and the second network terminal only receive and transmit data according to various scripts.
Therefore, when communication data transmitted to the second network terminal through the first network terminal is required, as shown in fig. 1, the automatic test method for correctness of the network communication data according to the present invention includes the following steps, wherein the numbers of the respective steps only represent different transformations, and are not used for limiting the steps of the automatic test method according to the numerical sequence of the step transformations. The automatic test method comprises the following steps:
step 02: and in the stage of testing the correctness of the network communication data, the first network terminal sends preset data to the second network terminal.
Step 04: so that the second network terminal will receive data.
Step 06: and comparing the obtained data with the first preset data.
Step 08: recording the result of the comparison, and taking the result of the comparison as the result of the test.
The first network terminal is controlled to send the first preset data in a software control mode, the first preset data is fixed data which is preset, the first data can be specifically set in a mode of configuring a first script of the first network terminal, and the first script is used for driving the first network terminal to send the first data. In order to make the second network terminal of the target receiving terminal obtain what data is currently transmitted by the data source transmitting terminal (the first network terminal) so as to be compared with the data received by the second network terminal, when configuring the second script of the second network terminal, the second script needs to be configured according to the first script so as to obtain the data information set by the first script, and therefore when the second script drives the second network terminal to receive the data, the second script knows that the currently received data should be the first preset data, and the communication data is correct, and therefore, the second script drives the second network terminal to compare the currently received data with the first preset data.
And configuring a second script of the second network terminal according to the first script, so that the second network terminal obtains the first preset data sent by the first network terminal, drives the second network terminal to receive data through the second script, and compares the received data with the first preset data through the second script, and specifically, the second network terminal compares each received frame of data with the first preset data in a byte-by-byte comparison mode. When the comparison result indicates that the data received by the second network terminal is the same as the first preset data, judging that the current communication data between the first network terminal and the second network terminal is the correct data, continuing to perform the correctness test of the communication data of the next frame, when the comparison result indicates that the data received by the second network terminal is different from the first preset data, judging that the current communication data between the first network terminal and the second network terminal is the incorrect data, recording the comparison result in a text form, and storing the record in the second network terminal.
The specific configuration mode of the first script is as follows: and filling the first preset data in the data bits of the communication frame which is required to be sent to the second network terminal by the first network terminal, wherein the first script drives the pre-first network terminal to send the communication frame to the second network terminal. The first preset data are data of N bytes, and the numerical values corresponding to the 1 st byte to the N th byte in the N bytes can be sequentially increased, so that the configuration of the second script is simplified. The first preset data length may be controlled by itself according to the requirement of the communication data, for example, when the data bit of the communication data is 8 bits, we may set N to 4, that is, the first preset data is a data of 4 bytes, we may set the first byte to 01, the second byte to 02, the third byte to 03, and the fourth byte to 04, and then the data bits in the communication frame may be all 0, that is 00000000, before being not filled with the first preset data, but may be other uncertain data, by configuring the first script, after the data bit in the communication frame is filled with the first preset data, we determine that 01020304 is only needed to compare the data in the received communication frame with 01020304 one by one at the target receiving end, that is, the second network terminal, so as to determine whether the current communication data is correct.
The first network terminal and the second network terminal may be any two embedded terminals in the terminal network 1 and the terminal network n in the first communication network shown in fig. 2. The first communication network may be, for example, a communication network of a train. And in a normal working stage of the train communication network, the first network terminal is used for sending data related to the train to the second network terminal. The communication mode of the first communication network is MVB communication or WTB communication. The MVB communication and the WTB communication belong to a bus communication mode and are used for accessing the train network equipment to the same bus, controlling the appointed network terminal or all network terminals to send data, and receiving the data by other network terminals on the bus.
The first network terminal and the second network terminal may be any two embedded terminals in the terminal network 1 and the terminal network n in the second communication network shown in fig. 3. The second communication network may be, for example, a communication network of a train, and the communication mode of the first communication network is ethernet communication. Ethernet communication within each consist in a train network may be accomplished through switching devices, whereas cross-consist communication may require routing devices to control designated devices or all devices throughout the network to send source data, which is then received by other devices.
When the communication networks where the first network terminal and the second network terminal are located, such as a train network, adopt other communication modes, such as CAN communication or HDLC communication, the automatic test method provided by the invention CAN also be adopted to test the correctness of the communication data. In addition, in some application cases, the communication network where the first network terminal and the second network terminal are located further includes a third network terminal that sends communication data to the second network terminal, that is, one target network terminal may receive data sent by multiple source data sending terminals. Therefore, the automatic test method further comprises testing the correctness of the communication data sent by the third network terminal to the second network terminal. The step of testing the correctness of the communication data sent by the third network terminal to the second network terminal comprises the following steps: and in the test stage, configuring a third script of the third network terminal, wherein the third script drives the third network terminal to send second preset data to the second network terminal, the second network terminal judges whether the data sent by the first network terminal is currently received or the data sent by the third network terminal according to a network port marking bit in a received communication frame, if the data sent by the first network terminal is received, the data currently received by the second network terminal is compared with the first preset data, and otherwise, the data currently received by the second network terminal is compared with the second preset data. The configuration mode of the third script is the same as that of the first script, and in order to simplify the configuration mode of the second script, the third script may be configured according to the first script, so that the second preset data is the same as the first preset data. In the test stage, different source data sending terminals all send the same preset data to a target receiving terminal.
In addition, the invention also provides a storage medium, which is a readable storage medium, and the computer program stored on the readable storage medium realizes the automatic test method according to any embodiment of the invention when being executed by a processor.
From the above, the automatic test method provided by the invention is based on the comparison of the data received and transmitted by the terminal itself receiving and transmitting data in the communication network, and meets the data correctness test of various communication types under the condition of no data acquisition and comparison by external equipment. Through script control, the automatic test effect of the correctness of the communication data of the communication network in different communication modes such as MVB, WTB and Ethernet can be realized, and the test efficiency and the regularity are effectively improved. Through test simplicity, repeatability and experience, the complex test environment construction is eliminated, the quick response can be realized, the basic function and long-time stable verification can be performed, and the comprehensiveness and accuracy of the test are strictly ensured through automatic result analysis.
Embodiments in accordance with the present invention, as described above, are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. An automatic testing method for correctness of network communication data, which is used for testing correctness of communication data sent by a first network terminal to a second network terminal, is characterized by comprising the following steps:
in the testing stage of the correctness of the network communication data, a first script of the first network terminal is configured, and the first network terminal is driven to send first preset data through the first script;
the second script of the second network terminal is configured according to the first script, so that the second network terminal obtains the first preset data sent by the first network terminal, the second network terminal is driven to receive the data through the second script, and the second network terminal is driven to compare the received data with the first preset data through the second script;
the first script is configured in the following manner:
filling the first preset data in the data bits of a communication frame which is required to be sent to the second network terminal by the first network terminal, wherein the first preset data is data of N bytes, the values corresponding to the 1 st byte to the N th byte in the N bytes are sequentially increased, and the first script drives the first network terminal to send the communication frame to the second network terminal;
the results of the comparison are recorded as a result of the test.
2. The automated test method of claim 1, wherein the second network terminal compares each received frame of data with the first predetermined data in a byte-by-byte comparison.
3. The automated test method of claim 1, wherein the step of recording the results of the comparison is:
when the comparison result indicates that the data received by the second network terminal is the same as the first preset data, judging that the current communication data between the first network terminal and the second network terminal is correct data, continuing to perform the correctness test of the communication data of the next frame,
when the comparison result indicates that the data received by the second network terminal is different from the first preset data, judging that the current communication data between the first network terminal and the second network terminal is incorrect data, recording the comparison result in a text form, and storing the record in the second network terminal.
4. The automated test method of claim 3 wherein the communications network in which the first and second network terminals are located further comprises a third network terminal that transmits communications data to the second network terminal, the automated test method further comprising testing the correctness of communications data transmitted by the third network terminal to the second network terminal,
the step of testing the correctness of the communication data sent by the third network terminal to the second network terminal comprises the following steps:
in the test stage, a third script of the third network terminal is configured, the third script drives the third network terminal to send second preset data to the second network terminal,
and the second network terminal judges whether the data transmitted by the first network terminal or the data transmitted by the third network terminal is currently received according to the network port marking bit in the received communication frame, if the received data is the data transmitted by the first network terminal, the data currently received by the second network terminal is compared with the first preset data, and if the received data is not the data currently received by the second network terminal is compared with the second preset data.
5. The automated test method of claim 4, wherein the third script is configured according to the first script such that the second preset data is the same as the first preset data.
6. The automated test method of claim 1 wherein the first network terminal and the second network terminal are two embedded network terminals in a train communication network, the first network terminal being configured to send data associated with the train to the second network terminal during a normal phase of operation of the train communication network,
the communication mode of the train network is one of MVB communication, WTB communication, ethernet communication, CAN communication and HDLC communication.
7. A storage medium, characterized in that the storage medium is a readable storage medium, which when being executed by a processor implements the automated test method according to any of claims 1 to 6.
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| CN107844426A (en) * | 2017-11-24 | 2018-03-27 | 网易（杭州）网络有限公司 | Automated testing method and device, storage medium, electronic equipment |
| CN111124877A (en) * | 2018-11-01 | 2020-05-08 | 株洲中车时代电气股份有限公司 | Train display software testing method, device and system |
| CN110417589A (en) * | 2019-07-23 | 2019-11-05 | 徐州工程学院 | A kind of vehicle-mounted voice cloud user experience quality road measuring method |
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