CN106776343A - A kind of web application automated test tool and method - Google Patents

Abstract

The invention relates to a web application automatic testing tool and method, comprising: a basic browser and web page operation realization module, a self-defined code compiling module, and a starting test program module. This system effectively solves the shortcomings of heavy manual testing tasks, complicated test code writing, and inability to test the entire system automatically in the traditional software testing process, and has strong application value in practice.

Description

A web application automated testing tool and method

technical field

The invention relates to a web application program automation testing tool and method, belonging to the application field of software testing.

Background technique

The testing of large-scale software is a complex and time-consuming task, and automated testing provides a good foundation for writing test programs.

Selenium WebDriver is a software system that can automatically simulate manual operations. By using the interface functions provided by Selenium WebDriver, the Java code can simulate operations such as clicking on a web page, inputting characters, and selecting a drop-down menu. However, Selenium only provides interfaces for basic operations, and a lot of development work is required to realize a complete test sequence.

JMeter is powerful and can perform multi-threaded, multi-user web program testing. STAX is also an automatic testing software that supports multiple functions and multiple languages. However, these tools are cumbersome to set up, not suitable for handling complex user-defined sequences, and it is not easy to use to simulate web page testing. Cucumber is a foreign automatic testing software. The advantage of this software is that the user can get a complete test program by inputting a code similar to the test description text. But describing a test requires a long code, and it is also not suitable for complex test sequences. Although Watir is easy to use, it requires users to be familiar with the Ruby language.

Contents of the invention

Problems solved by the technology of the present invention: In order to overcome the deficiencies of the existing software automation testing technology, the invention provides a method and tool for automatic testing of Web application programs, which solves the problems of heavy manual testing tasks, complicated test code writing and unautomation in the traditional software testing process To test the shortcomings of the whole system, the present invention is suitable for automatic testing of various web application programs.

The technical scheme adopted in the present invention is: a kind of Web application automatic testing tool, comprises: basic browser and web page operation realization module, self-defined code compiling module, starting test procedure module, wherein:

Basic browser and web page operation implementation module: written in Java language, write a large number of web page operation functions based on Selenium, realize basic browser operations and basic web page operations, and provide users with built-in function interfaces; users are writing tests In the program, it is realized by calling the built-in function;

Custom code compilation module: used to compile custom language codes to generate Java codes; this module includes T language compiler and preprocessor, T language compiler takes T language test code as input, and converts it to Rewrite it as C language style code, and then generate a syntax tree through lexical analysis and syntax analysis, and generate Java code during the process of traversing the syntax tree; T language is a simplified version of Java language and C language, you only need to understand web page test scenarios and simple Basic knowledge of programming can be easily used; the preprocessor is written in python language;

Start the test program module: used to run the Java code generated by the custom code compilation module to test the Web application;

System integration module: used to integrate basic browser and webpage operation implementation modules, custom code compilation modules, and start-up test program modules, and use python scripts to combine the above processes to form a complete test process. In test scenarios and test cases After the design is completed, fully automatic operation is realized.

The basic browser and web page operation realization modules include:

(1) Basic browser operations include: browser auto-start, maximize, enter URL, close;

(2) Basic web page operations include:

a. Locate web page elements through ID, TAG_NAME, NAME, CLASS_NAME, CSS_SELECTOR, LINK_TEXT, PARTIAL_LINK_TEXT, XPATH features, and perform operations on web page elements, including clicking links, clicking buttons, selecting drop-down menus, and entering text in text boxes;

b. Check whether a webpage element exists, and find the corresponding webpage element through id and css selector features;

c. Check the value of the table unit in the web page. This function compares a certain value of the web page element with the function input value, locates the table by ID, TAG_NAME, NAME, CLASS_NAME, CSS_SELECTOR, LINK_TEXT, PARTIAL_LINK_TEXT, XPATH, and then in the table Locate the cell by key value and offset, and then compare the corresponding value of the content in the cell. The corresponding value includes comparing the value of a single cell and multiple cells;

d. Check whether a certain column of a table in the web page is all or contains a certain string, and after locating the column in the table, check each cell of this column;

e. Check whether a row in the table or a node in the structure tree is checked. This type of operation needs to locate the row of the table or the check box element for checking;

f. Get a certain value of a certain webpage element, for example, get the text of a certain cell in a certain table;

g. Send a button to the web page, such as Enter;

h. Log in or log out on the webpage;

i. Upload files;

j. Initialize the table header;

k. Other webpage operations, including changing the frame, clearing the text box, checking whether a text box or drop-down menu is available, and closing the pop-up dialog box;

(3) Operation process:

a. Use the interface provided by Selenium to locate a web page element by ID, TAG_NAME, NAME, CLASS_NAME, CSS_SELECTOR, LINK_TEXT, PARTIAL_LINK_TEXT, XPATH;

After finding the webpage element, send an action request to the control through the Selenium interface, for example, click, or enter a certain key, and wait for a predetermined time before and after the action to ensure that the webpage element is available and the action is completed;

b. An exception is thrown when a control cannot be found;

c. For the operation of selecting the drop-down menu, create an instance of the Select class, and call different selection functions of this class according to the incoming parameters;

d. A function to check whether a web page element exists or meets a certain value, and throws an exception when the element cannot be found or the value does not meet the requirements;

e. To check and operate the cells in the table, first locate the table, and then locate the cells according to the header information and row/column information;

f. For operations such as uploading files, obtain the file path and pass it to the web page element as a parameter, so as to select and upload the file.

The implementation process of the custom code compilation module:

(1) Custom test language (T language)

Data type: string, integer, null, list;

Basic statements: variable definition, function definition, built-in function call, custom function call, for loop statement, if conditional branch statement, etc.

Basic language features and requirements:

a. Add a semicolon at the end of each statement;

b. Support Chinese character strings;

c. Support null;

d. The return type of the custom function is void;

e. There is no need to specify the data type when defining the variable;

f. Use the test keyword as the program entry function;

g. The format of the for loop statement is "for(iter in list){...; op(iter);...;}, where iter is the loop variable, that is, an element in the list, in is the keyword, list is the array to be traversed, op() is the operation performed on the loop variable;

(2) Code preprocessing: use python script to preprocess the input T language code, including rewriting the for...in... loop, and declaring undeclared variables to make it suitable for C style code;

(3) Compilation and code generation: By transforming a C language compiler of LALR(0), use three traversals to complete the code generation and input the T language code rewritten in Step 2 of the compiler, the first traversal, lexical analysis and Syntax analysis, generate corresponding syntax tree for T language code; second traversal, syntax check; third traversal, while traversing syntax tree, generate corresponding Java code for each node, finally, generate Java import statement, class Define the statement, declare the instance of the class where the function library is located, form a complete Java file, and put it into the Maven test folder.

The implementation process of the start-up test program module:

(1) install Java SDK, and revise system environment variable, add user variable JAVA_HOME=Java installation path;

(2) Install MAVEN, and modify system environment variables, add user variable MVN_HOME=MAVEN installation path;

(3) Add ";%JAVA_HOME%\jre\bin;%MAVEN_HOME%\bin" to the environment variable Path;

(4) Install chrome Driver;

(5) Open "Start" -> "Command Prompt", switch the directory to the project home directory, and run the command "mvn test–Dtest=xxx", where "xxx" is the relative name of the Java code tested by the functional module of the Web application to be tested The path, once started, is automatically tested without human intervention.

A method for automated testing of web applications, the implementation steps are as follows:

(1) Write a large number of webpage operation functions based on Selenium, realize basic browser operations and basic webpage operations, and provide users with built-in function interfaces; when users write test programs, they can be realized by calling built-in functions;

(2) Compile the custom language code to generate Java code, including T language compiler and preprocessor, refer to C language grammar, use bison and flex tools, design and write T language compiler and preprocessor, for compiler Written in C language, the preprocessor is written in python language; the T language compiler takes the T language test code as input, rewrites it into C language style code through the preprocessor, and then generates a syntax tree through lexical analysis and syntax analysis. In the process of syntax tree, Java code is generated; T language is a simplified version of Java language and C language, and it can be easily used only by understanding web page test scenarios and simple programming basics; according to the needs and characteristics of web applications, use selenium Interface to write the basic function library, written in Java language; according to the written function library, add a list of built-in functions in the compiler;

(3) Use the python language to write scripts, combine the above processes to form a complete test process, and realize fully automated operation after the design of test scenarios and test cases is completed.

The beneficial effect of the present invention compared with prior art is:

(1) The present invention provides a simple language that can be easily used by non-programmers, allowing testers to focus more on the design of test scenarios and test cases, rather than the grammatical specification of complex languages.

(2) The present invention includes a self-defined language compiling module, which can automatically compile the language into executable Java codes.

(3) The present invention provides a relatively general web testing framework, which is applicable to various web application systems. When testing different web application systems, it is only necessary to update the custom test language test code.

(4) The present invention provides an automated testing framework, which can automatically test the entire Web application system without manual intervention. The result of the test program will generate a test report and automatically save it to the local disk, which is convenient for manually reviewing the test results and discovering bugs in the web application system.

Description of drawings

Fig. 1 is the realization flowchart of the present invention.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. Main implementation steps of the present invention are as follows:

As shown in Fig. 1, the present invention is mainly composed of a basic browser and web page operation realization module, a self-defined code compilation module, a start-up test program module, and a system integration module.

The overall implementation process is as follows:

Basic browser and web page operation implementation module: This module is written in Java language, and a large number of web page operation functions are written based on Selenium. It mainly realizes basic browser operations and basic web page operations, and provides users with built-in Function interface.

Custom code compilation module: used to compile the custom language code written in the test scenario and test case design module to generate Java code. This module contains T language compiler and preprocessor. The compiler takes the T language test code as input, generates a syntax tree through lexical analysis and syntax analysis, and generates the target Java test code during the process of traversing the syntax tree.

Start the test program module: used to run the Java code generated by the custom code compilation module to test the application function module.

Custom language compilation modules include:

(1) Custom test language (T language)

Data type: string, integer, null, list;

Basic statements: variable definition, function definition, built-in function call, custom function call, for loop statement, if conditional branch statement, etc.

Basic language features and requirements:

a. Add a semicolon at the end of each statement;

b. Support Chinese character strings;

c. Support null;

d. The return type of the custom function is void;

e. There is no need to specify the data type when defining the variable;

f. Use the test keyword as the program entry function;

g. The format of the for loop statement is "for(iter in list){...; op(iter);...;}, where iter is the loop variable, that is, an element in the list, in is the keyword, list is the array to be traversed, op() is the operation performed on the loop variable;

h. Support string addition.

(2) Code preprocessing: use python script to preprocess the input T language code, including rewriting the for...in... loop, and declaring undeclared variables, etc., to make it suitable for C style code;

(3) Compilation and code generation: By modifying a C language compiler of LALR(0), code generation is completed using three traversals. The first traversal, lexical analysis and syntax analysis, generates the corresponding syntax tree for the T language code; the second traversal, syntax checking; the third traversal, while traversing the syntax tree, generates the corresponding Java code for each node. Finally, generate Javaimport statements, class definition statements, etc. to form a complete Java file and put it into the Maven test folder.

Start the test program module implementation process:

(1) install Java, and revise system environment variable, add user variable JAVA_HOME=Java installation path;

(2) Install MAVEN, and modify system environment variables, add user variable MVN_HOME=MAVEN installation path;

(3) Add ";%JAVA_HOME%\jre\bin;%MAVEN_HOME%\bin" to the environment variable Path;

(4) Install chrome Driver;

(5) Open "Start" -> "Command Prompt", switch the directory to the project home directory, and run the command "mvn test–Dtest=xxx", where "xxx" is the relative name of the Java code tested by the functional module of the Web application to be tested path.

Implementation process of the system integration module:

Use the python script to combine the above processes to form a complete test process.

The specific implementation process of the above modules is as follows:

1. Basic browser and web page operation implementation module

This module uses Java language, based on Selenium interface, to write webpage operation functions, mainly realizes basic browser operations and basic webpage operations, and provides users with built-in function interfaces for using this tool.

Basic browser operations include: browser auto-start, maximize, enter URL, close, etc.;

Basic webpage operations: find webpage elements according to id, css selector, link text, etc., click webpage elements according to id, css selector, link text, etc., fill text boxes according to id, css selector, link text, etc., according to id, css selector, link text Check the check box, locate table elements according to id, css selector, etc., check whether an element in the table is the expected value, check whether a cell in the table contains a certain string, etc. There are mainly the following operations:

(1) Use the interface provided by Selenium to locate a web page element by ID, TAG_NAME, NAME, CLASS_NAME, CSS_SELECTOR, LINK_TEXT, PARTIAL_LINK_TEXT, XPATH. Then, perform operations on web page elements, such as clicking a link, clicking a button, selecting a drop-down menu, entering text in a text box, and so on.

(2) Check whether a webpage element exists, and find the corresponding webpage element through ID, TAG_NAME, NAME, CLASS_NAME, CSS_SELECTOR, LINK_TEXT, PARTIAL_LINK_TEXT, XPATH.

(3) Check the value of the table cell in the web page. These functions compare a value of a web page element to a function input value. Locate the table by ID, TAG_NAME, NAME, CLASS_NAME, CSS_SELECTOR, LINK_TEXT, PARTIAL_LINK_TEXT, XPATH, and then locate the cell by key value or offset in the table, and then compare its corresponding value. Includes comparing single and multiple cell values.

(4) Check that a table column in the webpage is all a certain character string or contains a certain character string. After locating a column in the table, each cell of the column is checked.

(5) Check whether a row in the table or a node in the structure tree is checked. Such operations require positioning a table row or checkbox element for checking.

(6) Get a certain value of a certain webpage element, for example, get the text of a certain cell in a certain table.

(7) Send a button to the web page, such as Enter.

(8) Close a pop-up dialog box.

(9) Check the check box at the beginning of a row in the table, or a check box in the structure tree. Locate the checkbox by XPATH with value "preceding-sibling::span[1]".

(10) Check whether a certain control is available. Use the isEnabled function to achieve.

(11) Log in or log out on the web page. This is achieved by entering a user name, password, and clicking to log in. The specific value is entered by the user when calling the function.

(12) Other webpage operations, such as changing the frame, clearing the text box, checking whether a certain text box or drop-down menu is available, closing the pop-up dialog box, etc.

(13) For the operation of selecting the pull-down menu, create an instance of the Select class, and call different selection functions of this class according to the incoming parameters.

(14) A function to check whether a web page element exists or whether it meets a certain value, and throws an exception when the element cannot be found or the value does not meet the requirements.

(15) For the operation of uploading a file, the file path is obtained, and passed as a parameter to the webpage element, so as to realize selecting and uploading a file.

For different types of web page operations, different delays are added before and after the operation. This delay parameter is adjustable to ensure that there is enough waiting time for the web page to respond during the test. In addition, polling is performed for checking operations that require a long waiting time, so as to ensure that there is enough waiting time and that the webpage returns in time after responding. Define the BaseCommon class, and all the above functions are declared and defined as member functions of this class.

2. Custom code compilation module

(1) Custom test language (T language)

The T language is similar to the C language, using the basic procedural programming method, and the user realizes the operation of the webpage by calling the built-in function. The operation flow can be controlled by loop statements and conditional branch statements. Variables in the T language do not need to define a type, they are all treated as strings, and support strings connected with plus signs, and use null to represent unassigned strings. Writing test programs in T language is much simpler than writing code in Java or C language. Therefore, even people without much programming experience can use this tool as long as they are familiar with business scenarios.

Data type: string, integer, null, list;

Basic statements: variable definition, function definition, built-in function call, custom function call, for loop statement, if conditional branch statement, etc.

Basic language features and requirements:

a. Add a semicolon at the end of each statement;

b. Support Chinese character strings;

c. Support null;

d. The return type of the custom function is void;

e. There is no need to specify the data type when defining the variable;

f. Use the test keyword as the program entry function;

g. The format of the for loop statement is "for(iter in list){...; op(iter);...;}, where iter is the loop variable, that is, an element in the list, in is the keyword, list is the array to be traversed, op() is the operation performed on the loop variable;

h. Support string addition.

(2) Code preprocessing: use the python script to preprocess the input T language code, rewrite the for...in... loop, and change it to the for (iter=0; iter<length; iter++) form of C language. Declare undeclared variables and put the declaration statement at the beginning of the block to make it suitable for the C language style.

(3) Compilation and code generation: Generate a lexical analyzer and a syntax analyzer for the T language according to flex and bison, and use three traversals to complete the code generation. Both browser and web page manipulation functions are handled as built-in functions.

The first traversal, lexical analysis and syntax analysis, generates the corresponding syntax tree for the T language code. If there is a sentence that cannot be parsed during the generation process, an error will be reported;

The second traversal, grammar check, prompts for grammar errors in the input code, for example, if the number of parameters is incorrect for a call to a user-defined function, an error will be reported;

The third traversal, while traversing the syntax tree, generates corresponding Java code for each node. When generating the Java code, output the corresponding Java code to the file according to the corresponding relationship between the T language and the Java language. For example, at the end of each statement, output a semicolon. As another example, for the operation of adding strings, the string enclosed in double quotes and the plus sign between the two strings are output. For null identifiers, it is treated as a separate identifier. When the function name is test, it is declared as:

@Test

public void test()

To indicate that this is the test function in the Java program.

Add a String type declaration to the variable in the function. If it is a string array, it is declared with the String[] type. Generate corresponding if and else keywords for branch statements, and generate curly braces at appropriate positions.

Finally, a Java import statement is generated to import necessary packages such as selenium. In addition, define the test class according to the test file name, and declare the object of this class. Declare BaseCommon class object base. The built-in functions called in T language codes are treated as defined functions, and "base." is added when generating codes.

After generating the complete .java file, put the .java file into Maven's test folder.

3. Start the test program module

(1) install Java, and revise system environment variable, add user variable JAVA_HOME=Java installation path;

(2) Install MAVEN, and modify system environment variables, add user variable MVN_HOME=MAVEN installation path;

(3) Add ";%JAVA_HOME%\jre\bin;%MAVEN_HOME%\bin" in the environment variable Path;

(4) Install chrome Driver;

(5) Open "Start" -> "Command Prompt", switch the directory to the project home directory, and run the command "mvn test–Dtest=xxx", where "xxx" is the relative name of the Java code tested by the functional module of the Web application to be tested path.

Parts not described in detail in the present invention belong to the well-known technology in the art.

The above are only some specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be covered within the protection scope of the present invention.

Claims (5)

1. A kind of Web application automated testing tool, it is characterized in that comprising: basic browser and webpage operation realization module, self-defined code compiling module, start test program module, wherein: Basic browser and web page operation implementation module: written in Java language, write a large number of web page operation functions based on Selenium, realize basic browser operations and basic web page operations, and provide users with built-in function interfaces; users are writing tests In the program, it is realized by calling the built-in function; Custom code compilation module: used to compile custom language codes to generate Java codes; this module includes T language compiler and preprocessor, T language compiler takes T language test code as input, and converts it to Rewrite it as C language style code, and then generate a syntax tree through lexical analysis and syntax analysis, and generate Java code during the process of traversing the syntax tree; T language is a simplified version of Java language and C language, you only need to understand web page test scenarios and simple Basic knowledge of programming can be easily used; the preprocessor is written in python language; Start the test program module: used to run the Java code generated by the custom code compilation module to test the Web application; System integration module: used to integrate basic browser and webpage operation implementation modules, custom code compilation modules, and start-up test program modules, and use python scripts to combine the above processes to form a complete test process. In test scenarios and test cases After the design is completed, fully automatic operation is realized. 2. A kind of Web application automated testing tool according to claim 1, is characterized in that: described basic browser and webpage operation realization module comprise: (1) Basic browser operations include: browser auto-start, maximize, enter URL, close; (2) Basic web page operations include: a. Locate web page elements through ID, TAG_NAME, NAME, CLASS_NAME, CSS_SELECTOR, LINK_TEXT, PARTIAL_LINK_TEXT, XPATH features, and perform operations on web page elements, including clicking links, clicking buttons, selecting drop-down menus, and entering text in text boxes; b. Check whether a webpage element exists, and find the corresponding webpage element through ID, TAG_NAME, NAME, CLASS_NAME, CSS_SELECTOR, LINK_TEXT, PARTIAL_LINK_TEXT, XPATH features; c. Check the value of the table unit in the web page. This function compares a certain value of the web page element with the function input value, locates the table by ID, TAG_NAME, NAME, CLASS_NAME, CSS_SELECTOR, LINK_TEXT, PARTIAL_LINK_TEXT, XPATH, and then in the table Locate the cell by key value and offset, and then compare the corresponding value of the content in the cell. The corresponding value includes comparing the value of a single cell and multiple cells; d. Check whether a certain column of a table in the web page is all or contains a certain string, and after locating the column in the table, check each cell of this column; e. Check whether a row in the table or a node in the structure tree is checked. This type of operation needs to locate the row of the table or the check box element for checking; f. Get a certain value of a certain web page element, including getting the text of a certain cell in a certain table; g. Send a keystroke to the web page; h. Log in or log out on the webpage; i. Upload files; j. Initialize the table header; k. Other webpage operations, including changing the frame, clearing the text box, checking whether a text box or drop-down menu is available, and closing the pop-up dialog box; (3) Operation process: a. Use the interface provided by Selenium to locate a web page element by ID, TAG_NAME, NAME, CLASS_NAME, CSS_SELECTOR, LINK_TEXT, PARTIAL_LINK_TEXT, XPATH; After finding the webpage element, send an action request to the control through the Selenium interface, including clicking, entering a key, selecting a drop-down menu, and obtaining various values; waiting for a predetermined time before and after the action to ensure that the webpage element is available, and The action is completed; use a separate thread to complete the wait and execute; b. An exception is thrown when a control cannot be found; c. For the operation of selecting the drop-down menu, create an instance of the Select class, and call different selection functions of this class according to the incoming parameters; d. A function to check whether a web page element exists or meets a certain value, and throws an exception when the element cannot be found or the value does not meet the requirements; e. To check and operate the cells in the table, first locate the table, and then locate the cells according to the header information and row/column information; f. For operations such as uploading files, obtain the file path and pass it to the web page element as a parameter, so as to select and upload the file. 3. A kind of Web application automated testing tool according to claim 1, is characterized in that: described self-defined code compiling module realizes process: (1) Custom test language (T language) Data type: string, integer, null, list; Basic statements: variable definition, function definition, built-in function call, custom function call, for loop statement, if conditional branch statement, etc.; Basic language features and requirements: a. Add a semicolon at the end of each statement; b. Support Chinese character strings; c. Support null; d. The return type of the custom function is void; e. There is no need to specify the data type when defining the variable; f. Use the test keyword as the program entry function; g. The format of the for loop statement is "for(iter in list){...; op(iter);...;}, where iter is the loop variable, that is, an element in the list, in is the keyword, list is the array to be traversed, op() is the operation performed on the loop variable; (2) Code preprocessing: use python script to preprocess the input T language code, including rewriting the for...in... loop, and declaring undeclared variables to make it suitable for C style code; (3) Compilation and code generation: By transforming a C language compiler of LALR(0), use three traversals to complete the code generation and input the T language code rewritten in Step 2 of the compiler, the first traversal, lexical analysis and Syntax analysis, generate corresponding syntax tree for T language code; second traversal, syntax check; third traversal, while traversing syntax tree, generate corresponding Java code for each node, finally, generate Java import statement, class Define the statement, declare the instance of the class where the function library is located, form a complete Java file, and put it into the Maven test folder. 4. A kind of Web application automation testing tool according to claim 1, is characterized in that: described start-up test program module implementation process: (1) install Java SDK, and revise system environment variable, add user variable JAVA_HOME=Java installation path; (2) Install MAVEN, and modify system environment variables, add user variable MVN_HOME=MAVEN installation path; (3) Add ";%JAVA_HOME%\jre\bin;%MAVEN_HOME%\bin" to the environment variable Path; (4) Install chrome Driver; (5) Open "Start" -> "Command Prompt", switch the directory to the project home directory, and run the command "mvntest–Dtest=xxx", where "xxx" is the relative path of the Java code tested by the functional module of the web application to be tested , once started, the automatic test starts, and the whole process does not require manual intervention. 5. A method for automated testing of web applications, characterized in that: the implementation steps are as follows: (1) Write a large number of webpage operation functions based on Selenium, realize basic browser operations and basic webpage operations, and provide users with built-in function interfaces; for each webpage operation, after finding the webpage element, through the Selenium interface, Send an action request to the control, including clicking, entering a key, selecting a drop-down menu, and obtaining its various values; waiting for a predetermined time before and after the action to ensure that the web page elements are available and the action is completed; use a separate thread to Complete waiting and execution; when the user writes the test program, it is realized by calling the built-in function; (2) Compile the custom language code to generate Java code, including T language compiler and preprocessor, refer to C language grammar, use bison and flex tools, design and write T language compiler and preprocessor, for compiler Written in C language, the preprocessor is written in python language; the T language compiler takes the T language test code as input, rewrites it into C language style code through the preprocessor, and then generates a syntax tree through lexical analysis and syntax analysis; then, In the process of traversing the syntax tree, Java code is generated; T language is a simplified version of Java language and C language, and it can be easily used only by understanding web page test scenarios and simple programming basics; according to the needs and characteristics of web applications, Use the selenium interface to write the basic function library, written in Java language; according to the written function library, add the list of built-in functions in the compiler; (3) Use the python language to write scripts, combine the above processes to form a complete test process, and realize automatic operation after the design of test scenarios and test cases is completed.