CN105656727A - Method and device achieving application testing on mobile terminal - Google Patents

Abstract

The invention discloses a method and device achieving application testing on a mobile terminal. The method includes the steps that IP data packets of applications on the mobile terminal are captured by means of a VPNService supply interface on the testing mobile terminal; the captured IP data packets are packaged into data files capable of being recognized by a network encapsulation analysis tool; the packaged data files are sent to the network encapsulation analysis tool to be analyzed so that the testing result of the applications on the mobile terminal can be obtained. By means of the technical scheme, the IP data packets of the applications can be captured while root permission of the mobile terminal does not need to be acquired, the IP data packets can be used for testing the applications by means of simple processing, and operation is easier and more convenient.

Description

Method and device for implementing application testing on mobile terminal

technical field

The invention relates to the field of application testing, in particular to a method and device for implementing application testing on a mobile terminal.

Background technique

Packet capture (packet capture) is to intercept, resend, edit, and transfer data packets sent and received by network transmission, and it plays a very important role in the field of application testing. For example, for a mobile terminal installed with an Android system, as long as the mobile terminal is rooted to obtain root authority, various existing applications can be used to capture packets, and then further testing can be performed.

However, with the update of the Android system version, it becomes more and more difficult to root the higher version of the Android system. Without rooting the Android system, the traffic packets transmitted by many applications through the 4G network cannot be captured, which is a bottleneck in the field of application testing in the existing environment.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a method and device for implementing application testing on a mobile terminal to overcome the above problems or at least partially solve the above problems.

According to one aspect of the present invention, a method for implementing application testing on a mobile terminal is provided, including:

Utilize the interface provided by the VPNService service on the mobile terminal for testing to capture the IP packets of each application on the mobile terminal;

Encapsulate captured IP data packets into data files that can be recognized by network packet analysis tools;

Send the encapsulated data file to the network packet analysis tool for analysis, so as to obtain the test result of the application on the mobile terminal.

Optionally, the IP data packet that captures is encapsulated into the data file that network packet analysis tool can identify comprises:

Encapsulate captured IP packets into a pcap file.

Optionally, encapsulating captured IP packets into a pcap file includes:

Encapsulate IP data packets into pcap packets;

Encapsulate one or more pcap packets into a pcap file, and the pcap file has a pcap file header.

Optionally, said encapsulating IP packets into pcap packets includes:

Add Ethernet frame header and pcap header to an IP data packet to get a pcap packet.

Optionally, encapsulating captured IP packets into data files that can be identified by network packet analysis tools includes:

Save the captured IP packets;

Encapsulate the saved IP data packets into data files that can be recognized by network packet analysis tools.

Optionally, the method further includes:

After the captured IP data packet is processed by TCP layer or UDP layer, it is sent to the corresponding target server.

Optionally, the method further includes:

Receive the data packet returned by the target server;

Send the data packet returned by the target server to the corresponding application on the mobile terminal; at the same time, save the data packet returned by the target server;

Encapsulate the saved data packet returned by the target server into a data file that can be recognized by the network packet analysis tool and send it to the network packet analysis tool for analysis.

According to another aspect of the present invention, a device for implementing application testing on a mobile terminal is provided, including:

The capture unit is suitable for testing the interface provided by the VPNService service on the mobile terminal to capture the IP packets of each application on the mobile terminal;

An encapsulation unit, adapted to encapsulate the captured IP data packet into a data file recognizable by a network packet analysis tool;

The sending unit is adapted to send the encapsulated data file to the network packet analysis tool for analysis, so as to obtain the test result of the application on the mobile terminal.

Optionally, the encapsulation unit is adapted to encapsulate the captured IP data packets into a pcap file.

Optionally, the encapsulation unit is adapted to encapsulate the IP data packet into a pcap packet, and encapsulate one or more pcap packets into a pcap file; the pcap file has a pcap file header.

Optionally, the encapsulation unit is adapted to add an Ethernet frame header and a pcap header to an IP data packet to obtain a pcap packet.

Optionally, the device further includes: a storage unit;

The capture unit is adapted to put captured IP packets into a storage unit;

The encapsulation unit is suitable for encapsulating the IP data packet in the storage unit into a data file that can be recognized by a network packet analysis tool.

Optionally, the device further includes:

The network transceiver unit is adapted to process the IP data packet captured by the capture unit at the TCP layer or the UDP layer and then send it to the corresponding target server.

Optionally, the network transceiver unit is further adapted to receive the data packet returned by the target server; send the data packet returned by the target server to the corresponding application on the mobile terminal, and at the same time, save the data packet returned by the target server;

The encapsulation unit is further adapted to encapsulate the data packet returned by the stored target server into a data file that the network packet analysis tool can identify and send it to the sending unit;

The sending unit is further adapted to send the received data file to a network packet analysis tool for analysis.

As can be seen from the above, the technical scheme of the present invention utilizes the interface provided by the VPNService service on the mobile terminal for testing to capture the IP packets of each application on the mobile terminal, because the IP packets cannot be identified by the network packet analysis tool, Therefore need to further encapsulate the captured IP packet into a data file that can be identified by the network packet analysis tool, and then the data file after the encapsulation can be sent to the network packet analysis tool for analysis to obtain the mobile terminal. Applied test results. The technical scheme can capture the IP data packets of the application without obtaining the root authority of the mobile terminal, and can be used for application testing after simple processing, and the operation is simpler and more convenient.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same parts. In the attached picture:

Fig. 1 shows a flow chart of a method for implementing application testing on a mobile terminal according to an embodiment of the present invention;

Fig. 2 shows a schematic structural diagram of an apparatus for implementing application testing on a mobile terminal according to an embodiment of the present invention.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

Fig. 1 shows a flow chart of a method for implementing application testing on a mobile terminal according to an embodiment of the present invention. As shown in Fig. 1, the method includes:

Step S110, using the interface provided by the VPNService service on the mobile terminal for testing, to capture the IP data packets of each application on the mobile terminal.

The Android system provides VPNService service starting from SDK (Software Development Kit, software development kit) version 4.0. Using this service, you can obtain IP data packets sent and received by applications installed on Android-based mobile terminals. Analyzing the IP data packets sent and received by the application is very important for application testing. Application testers can control the application to perform different operations, and capture the IP data packets sent and received corresponding to each operation, and judge by analyzing the IP data packets sent and received. Whether the functions of the application are perfect.

Step S120, encapsulating the captured IP data packet into a data file that can be recognized by the network packet analysis tool.

There are many network packet analysis tools used in application testing, and commonly used software such as wireshark cannot directly identify IP data packets. identifiable data files.

Step S130, sending the encapsulated data file to a network packet analysis tool for analysis, so as to obtain a test result of the application on the mobile terminal.

It can be seen that the method shown in Figure 1 utilizes the interface provided by the VPNService service on the mobile terminal for testing to capture the IP data packets of each application on the mobile terminal. Since this IP data packet cannot be identified by the network packet analysis tool, therefore It is necessary to further encapsulate the captured IP data packets into a data file that can be recognized by the network packet analysis tool, and then send the encapsulated data file to the network packet analysis tool for analysis to obtain the application test on the mobile terminal result. The technical scheme can capture the IP data packets of the application without obtaining the root authority of the mobile terminal, and can be used for application testing after simple processing, and the operation is simpler and more convenient.

In one embodiment of the present invention, in the method shown in FIG. 1 , encapsulating the captured IP data packets into a data file that can be recognized by a network packet analysis tool includes: encapsulating the captured IP data packets into a pcap file.

The wireshark software mentioned above is currently the most widely used network packet analysis tool, and the data files that can be identified include pcap files. To encapsulate the IP data packet into a pcap file, the specific operations are as follows: encapsulate the IP data packet into a pcap packet; encapsulate one or more pcap packets into a pcap file, and the pcap file has a pcap file header. Wherein, encapsulating the IP data packet into a pcap packet includes: adding an Ethernet frame header and a pcap packet header to an IP data packet to obtain a pcap packet.

A pcap packet is divided into three parts: pcap packet header, Ethernet frame header and IP data packet. Among them, the pcap packet header is the high bit of the timestamp (seconds), the low bit of the timestamp (microseconds), the length of the IP data packet, and the actual length, each of which occupies 4 bytes. The Ethernet frame header is the destination MAC, source MAC, and type TYPE in turn. Each pcap packet corresponds to a captured IP packet, and a pcap file can include multiple pcap packets. Therefore, after capturing the first IP data packet, create a pcap file, first write the pcap file header to the pcap file, then write the pcap packet header, Ethernet frame header, and the captured IP data packet in sequence, that is, complete Write a pcap package to the pcap file. After all the captured IP data packets to be tested are written into the pcap file, the encapsulation of the pcap file is completed.

In one embodiment of the present invention, in the method shown in Figure 1, encapsulating captured IP data packets into data files that can be identified by network packet analysis tools includes: saving captured IP data packets; The data packets are encapsulated into data files that can be recognized by network packet analysis tools.

The VPNService service can be regarded as a network proxy service. Therefore, capturing an IP data packet can be regarded as changing the destination address of the IP data packet and sending it to a proxy server, that is, the application that captures the IP data packet. If the captured IP data packet is directly encapsulated into a pcap packet, it cannot complete its original function, such as sending it to the target server so that the server can return the data packet. In this way, the IP data packet returned by the server to the original application cannot be captured. Therefore, in this embodiment, the captured IP data packets are first saved, and the saved IP data packets are encapsulated into data files that can be recognized by the network packet analysis tool. As for the captured IP data packet, it can be processed at the TCP layer or the UDP layer and then sent to the corresponding target server. Among them, the IP data packet transmitted through the UDP layer can be directly forwarded after modifying the IP address of the network layer (that is, modifying the target IP address of the data packet returned by the target server to the application for capturing the data packet), while the IP data packet transmitted through the TCP layer The data packet not only needs to modify the IP address of the network layer, but also needs to undergo a three-way handshake before it can be sent to the target server.

After the captured IP packet is sent to the corresponding target server, the target server will usually return the corresponding packet, and these packets also need to be tested and analyzed. Therefore, in an embodiment of the present invention, the above-mentioned method further includes: Receive the data packet returned by the target server; send the data packet returned by the target server to the corresponding application on the mobile terminal; at the same time, save the data packet returned by the target server; encapsulate the saved data packet returned by the target server into a network packet The data files that can be identified by the analysis tool are sent to the network packet analysis tool for analysis.

Similar to the foregoing embodiments, the data packets returned by the target server cannot be directly returned to the original application program, but are captured and saved, and the saved data packets returned by the target server are encapsulated into data that can be recognized by the network packet analysis tool The file is then sent to the network packet analysis tool for analysis, and the captured data packets are forwarded.

In one embodiment of the present invention, the captured IP packets may not be forwarded, so that the original application program cannot be connected to the external network for communication. Some functions of the application in the disconnected state, such as error reminders, etc.

Fig. 2 shows a schematic structural diagram of a device for implementing application testing on a mobile terminal according to an embodiment of the present invention. As shown in Fig. 2 , the device 200 for implementing application testing on a mobile terminal includes:

The capture unit 210 is adapted to use the interface provided by the VPNService service on the mobile terminal for testing, and capture the IP data packets of each application on the mobile terminal.

The Android system provides VPNService service starting from SDK (Software Development Kit, software development kit) version 4.0. Using this service, you can obtain IP data packets sent and received by applications installed on Android-based mobile terminals. Analyzing the IP data packets sent and received by the application is very important for application testing. Application testers can control the application to perform different operations, and capture the IP data packets sent and received corresponding to each operation, and judge by analyzing the IP data packets sent and received. Whether the functions of the application are perfect.

The encapsulation unit 220 is adapted to encapsulate the captured IP data packets into a data file that can be recognized by a network packet analysis tool.

There are many network packet analysis tools used in application testing, and commonly used software such as wireshark cannot directly identify IP data packets. identifiable data files.

The sending unit 230 is adapted to send the encapsulated data file to a network packet analysis tool for analysis, so as to obtain a test result of the application on the mobile terminal.

It can be seen that the device shown in Figure 2 uses the interface provided by the VPNService service on the mobile terminal for testing to capture the IP data packets of each application on the mobile terminal through the cooperation of each unit. Therefore, it is necessary to further encapsulate the captured IP data packets into a data file that can be recognized by the network packet analysis tool, and then send the encapsulated data file to the network packet analysis tool for analysis to obtain the The test results of the application on the mobile terminal. The technical scheme can capture the IP data packets of the application without obtaining the root authority of the mobile terminal, and can be used for application testing after simple processing, and the operation is simpler and more convenient.

In an embodiment of the present invention, in the apparatus shown in FIG. 2 , the encapsulation unit 220 is adapted to encapsulate the captured IP data packets into a pcap file. Specifically, the encapsulation unit 220 is adapted to encapsulate the IP data packet into a pcap packet, and encapsulate one or more pcap packets into a pcap file; the pcap file has a pcap file header; wherein, the IP data packet is encapsulated into a pcap packet specifically, Add Ethernet frame header and pcap header to an IP data packet to get a pcap packet.

The wireshark software mentioned above is currently the most widely used network packet analysis tool, and the data files that can be identified include pcap files. A pcap packet is divided into three parts: pcap packet header, Ethernet frame header and IP data packet. Among them, the pcap packet header is the high bit of the timestamp (seconds), the low bit of the timestamp (microseconds), the length of the IP data packet, and the actual length, each of which occupies 4 bytes. The Ethernet frame header is the destination MAC, source MAC, and type TYPE in turn. Each pcap packet corresponds to a captured IP packet, and a pcap file can include multiple pcap packets. Therefore, after capturing the first IP data packet, create a pcap file, first write the pcap file header to the pcap file, then write the pcap packet header, Ethernet frame header, and the captured IP data packet in sequence, that is, complete Write a pcap package to the pcap file. After all the captured IP data packets to be tested are written into the pcap file, the encapsulation of the pcap file is completed.

In an embodiment of the present invention, the device shown in FIG. 2 further includes: a storage unit. The capture unit is adapted to put the captured IP data packets into the storage unit; the encapsulation unit is adapted to encapsulate the IP data packets in the storage unit into data files that can be recognized by network packet analysis tools.

The VPNService service can be regarded as a network proxy service. Therefore, capturing an IP data packet can be regarded as changing the destination address of the IP data packet and sending it to a proxy server, that is, the application that captures the IP data packet. If the captured IP data packet is directly encapsulated into a pcap packet, it cannot complete its original function, such as sending it to the target server so that the server can return the data packet. In this way, the IP data packet returned by the server to the original application cannot be captured. Therefore, in this embodiment, the captured IP data packets are first saved, and the saved IP data packets are encapsulated into data files that can be recognized by the network packet analysis tool.

As for the captured IP data packets, in one embodiment of the present invention, the above device further includes: a network transceiver unit, which can process the captured IP data packets at the TCP layer or the UDP layer and send them to the corresponding target server. Among them, the IP data packet transmitted through the UDP layer can be directly forwarded after modifying the IP address of the network layer (that is, modifying the target IP address of the data packet returned by the target server to the application for capturing the data packet), while the IP data packet transmitted through the TCP layer The data packet not only needs to modify the IP address of the network layer, but also needs to undergo a three-way handshake before it can be sent to the target server.

After the captured IP data packets are sent to the corresponding target server, the target server will usually return the corresponding data packets, which also need to be tested and analyzed. Therefore, in one embodiment of the present invention, in the above-mentioned device, the network The transceiver unit is further adapted to receive the data packet returned by the target server; the data packet returned by the target server is sent to the corresponding application on the mobile terminal, and at the same time, the data packet returned by the target server is stored; the encapsulation unit is further adapted to The stored data packet returned by the target server is encapsulated into a data file that can be recognized by the network packet analysis tool and sent to the sending unit; the sending unit is further adapted to send the received data file to the network packet analysis tool for analysis.

Similar to the foregoing embodiments, the data packets returned by the target server cannot be directly returned to the original application program, but are captured and saved, and the saved data packets returned by the target server are encapsulated into data that can be recognized by the network packet analysis tool The file is then sent to the network packet analysis tool for analysis, and the captured data packets are forwarded.

In one embodiment of the present invention, the captured IP packets may not be forwarded, so that the original application program cannot be connected to the external network for communication. Some functions of the application in the disconnected state, such as error reminders, etc.

In summary, the technical scheme of the present invention utilizes the interface provided by the VPNService service on the mobile terminal for testing to capture the IP packets of each application on the mobile terminal, because the IP packets cannot be identified by the network packet analysis tool , so it is necessary to further encapsulate the captured IP data packets into a data file that can be recognized by the network packet analysis tool, and then send the encapsulated data file to the network packet analysis tool for analysis, so as to obtain the application information on the mobile terminal. test results. The technical scheme can capture the IP data packets of the application without obtaining the root authority of the mobile terminal, and can be used for application testing after simple processing, and the operation is simpler and more convenient.

It should be noted:

The algorithms and displays presented herein are not inherently related to any particular computer, virtual appliance, or other device. Various general purpose devices can also be used with the teachings based on this. The structure required to construct such an apparatus will be apparent from the foregoing description. Furthermore, the present invention is not specific to any particular programming language. It should be understood that various programming languages can be used to implement the content of the present invention described herein, and the above description of specific languages is for disclosing the best mode of the present invention.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, in order to streamline this disclosure and to facilitate an understanding of one or more of the various inventive aspects, various features of the invention are sometimes grouped together in a single embodiment, figure, or its description. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art can understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. Modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore may be divided into a plurality of sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method or method so disclosed may be used in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will understand that although some embodiments described herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention. and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) can be used in practice to implement some or all of the components in the device for implementing application testing on a mobile terminal according to an embodiment of the present invention. Full functionality. The present invention can also be implemented as an apparatus or an apparatus program (for example, a computer program and a computer program product) for performing a part or all of the methods described herein. Such a program for realizing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names.

The present invention discloses A1, a method for implementing application testing on a mobile terminal, wherein the method includes:

Utilize the interface provided by the VPNService service on the mobile terminal for testing to capture the IP packets of each application on the mobile terminal;

Encapsulate captured IP data packets into data files that can be recognized by network packet analysis tools;

Send the encapsulated data file to the network packet analysis tool for analysis, so as to obtain the test result of the application on the mobile terminal.

A2, the method as described in A1, wherein, the described IP data packet that captures is encapsulated into the data file that network packet analysis tool can identify comprises:

Encapsulate captured IP packets into a pcap file.

A3, the method as described in A2, wherein, encapsulating the captured IP packet in the pcap file includes:

Encapsulate IP data packets into pcap packets;

Encapsulate one or more pcap packets into a pcap file, and the pcap file has a pcap file header.

A4, the method as described in A3, wherein, described IP packet is encapsulated into pcap bag and comprises:

Add Ethernet frame header and pcap header to an IP data packet to get a pcap packet.

A5, the method as described in A1, wherein, the IP packet that captures is encapsulated into the data file that network packet analysis tool can identify comprises:

Save the captured IP packets;

Encapsulate the saved IP data packets into data files that can be recognized by network packet analysis tools.

A6, the method as described in A5, wherein, the method further comprises:

After the captured IP data packet is processed by TCP layer or UDP layer, it is sent to the corresponding target server.

A7. The method as described in A6, wherein the method further comprises:

Receive the data packet returned by the target server;

Send the data packet returned by the target server to the corresponding application on the mobile terminal; at the same time, save the data packet returned by the target server;

Encapsulate the saved data packet returned by the target server into a data file that can be recognized by the network packet analysis tool and send it to the network packet analysis tool for analysis.

The present invention also discloses B8, a device for implementing application testing on a mobile terminal, wherein the device includes:

The capture unit is suitable for testing the interface provided by the VPNService service on the mobile terminal to capture the IP packets of each application on the mobile terminal;

An encapsulation unit, adapted to encapsulate the captured IP data packet into a data file recognizable by a network packet analysis tool;

The sending unit is adapted to send the encapsulated data file to the network packet analysis tool for analysis, so as to obtain the test result of the application on the mobile terminal.

B9. The device as described in B8, wherein,

The encapsulation unit is suitable for encapsulating captured IP data packets into a pcap file.

B10. The device of B9, wherein,

The encapsulation unit is suitable for encapsulating the IP data packet into a pcap packet, and encapsulating one or more pcap packets into a pcap file; the pcap file has a pcap file header.

B11. The device as described in B10, wherein,

The encapsulation unit is adapted to add an Ethernet frame header and a pcap header to an IP data packet to obtain a pcap packet.

B12. The device as described in B8, wherein the device further comprises: a storage unit;

The capture unit is adapted to put captured IP packets into a storage unit;

The encapsulation unit is suitable for encapsulating the IP data packet in the storage unit into a data file that can be recognized by a network packet analysis tool.

B13. The device as described in B12, wherein the device further comprises:

The network transceiver unit is adapted to process the IP data packet captured by the capture unit at the TCP layer or the UDP layer and then send it to the corresponding target server.

B14. The device of B13, wherein,

The network transceiver unit is further adapted to receive the data packet returned by the target server; send the data packet returned by the target server to the corresponding application on the mobile terminal, and simultaneously save the data packet returned by the target server;

The encapsulation unit is further adapted to encapsulate the data packet returned by the stored target server into a data file that the network packet analysis tool can identify and send it to the sending unit;

The sending unit is further adapted to send the received data file to a network packet analysis tool for analysis.

Claims (10)

1. A method for implementing application testing on a mobile terminal, wherein the method comprises: Utilize the interface provided by the VPNService service on the mobile terminal for testing to capture the IP packets of each application on the mobile terminal; Encapsulate captured IP data packets into data files that can be recognized by network packet analysis tools; Send the encapsulated data file to the network packet analysis tool for analysis, so as to obtain the test result of the application on the mobile terminal. 2. method as claimed in claim 1, wherein, the IP packet that described capturing is encapsulated into the data file that network packet analysis tool can identify comprises: Encapsulate captured IP packets into a pcap file. 3. The method according to claim 2, wherein encapsulating the captured IP packets in the pcap file comprises: Encapsulate IP data packets into pcap packets; Encapsulate one or more pcap packets into a pcap file, and the pcap file has a pcap file header. 4. The method according to claim 3, wherein said IP packet is encapsulated into a pcap packet comprising: Add Ethernet frame header and pcap header to an IP data packet to get a pcap packet. 5. method as claimed in claim 1, wherein, the IP packet that captures is encapsulated into the data file that network packet analysis tool can identify comprises: Save the captured IP packets; Encapsulate the saved IP data packets into data files that can be recognized by network packet analysis tools. 6. The method of claim 5, wherein the method further comprises: After the captured IP data packet is processed by TCP layer or UDP layer, it is sent to the corresponding target server. 7. The method of claim 6, wherein the method further comprises: Receive the data packet returned by the target server; Send the data packet returned by the target server to the corresponding application on the mobile terminal; at the same time, save the data packet returned by the target server; Encapsulate the saved data packet returned by the target server into a data file that can be recognized by the network packet analysis tool and send it to the network packet analysis tool for analysis. 8. A device for implementing application testing on a mobile terminal, wherein the device comprises: The capture unit is suitable for testing the interface provided by the VPNService service on the mobile terminal to capture the IP packets of each application on the mobile terminal; An encapsulation unit, adapted to encapsulate the captured IP data packet into a data file that can be recognized by a network packet analysis tool; The sending unit is adapted to send the encapsulated data file to the network packet analysis tool for analysis, so as to obtain the test result of the application on the mobile terminal. 9. The apparatus of claim 8, wherein, The encapsulation unit is suitable for encapsulating captured IP data packets into a pcap file. 10. The apparatus of claim 9, wherein, The encapsulation unit is suitable for encapsulating the IP data packet into a pcap packet, and encapsulating one or more pcap packets into a pcap file; the pcap file has a pcap file header.