APP special test: traffic test

The power and flow test of mobile phones is mainly to think from the user's point of view. After all, the power consumption and flow consumption are large, which will affect the customer's experience.The battery usage of the mobile phone is proportional to the CPU usage.

Because there are no detailed regulations for this performance after all, only a general range can be given. The CPU usage rate cannot exceed 10%, and the traffic flow cannot exceed 10M. Generally, data can be obtained through some monitoring software on the Android mobile phone.The software includes Emmagee, GT

Traffic testing should pay attention to the test items

1) Traffic prompt when the app is first launched;

2) The average traffic value of the app running continuously for 2 hours in the background;

3) The average flow value applied at the operating limit (big data transmission)

4) Test for the application main process method involved in the scenario method

5) Average at first login (multi-device test)

Use tcpdump to capture traffic packets, capture steps

1) Copy the tcpdump file to the /data/locla directory:

adb push tcpdump /data/local

tcpdump download address: http://www.tcpdump.org/

2) Modify file permissions:

adb shell chmod 777 /data/local/tcp/tcpdump

3) Determine whether you have root permissions: adb shell (# is displayed in front of the command line, indicating that you already have root permissions)

After the # enter:

/data/local/tcpdump -s 0 -w /data/capture.pcap-v

Details:

• -s: The default capture length is 8 bytes when capturing data packets, plus -s 0 means capture complete data packet information;

• -v: Displays the current number of packages during command execution;

• -w:/data/captrue.pcap: Indicates that the captured data package file is saved in the /data folder of the Android virtual machine

Execution error here (to be resolved)

4) Drag the captured data packet captrue.pcap to the local (specified location such as d:)

adb pull /data/capture.pcap

Analyze with wireshark: find the flow of packets.Click on Statistics==>Capture file properties (analyze data according to development documentation)

Scenario traffic saving method

1) Data is compressed without affecting the experience and functions, such as web page js file compression, image compression.(compress and remove spaces to save traffic)

2) The use of different data formats, such as the use of json format as the interface return format is usually smaller than the XML format

3) Optimize data download, such as split-screen loading to reduce traffic loss

4) Local cache, which can temporarily cache some pictures and js files obtained by the client to reduce network data loading

5) Design different strategies for different network types, such as manually downloading pictures from 2g/3g networks to optimize the network

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Learning resource sharing

Finally, I would like to thank everyone who has read my article carefully. Watching the rise and attention of fans all the way, there is always a need for gifts. Although it is not a very valuable thing, if you can use it, you can take it directly.

These materials should be the most comprehensive and complete preparation warehouse for friends who do [software testing]. This warehouse has also accompanied me through the most difficult journey. I hope it can also help you!Everything should be done as early as possible, especially in the technology industry, and the technical foundation must be improved.Hope it will be helpful to you all...

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