How to use MySQL testing framework MTR for automated testing

王林
Release: 2023-07-12 14:21:09
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How to use MySQL test framework MTR for automated testing

Introduction:
Automated testing is one of the important links in modern software development. It can improve the efficiency of testing and the accuracy of test results. MySQL testing framework MTR (MySQL Test Run) is a tool for performing functional and performance testing of MySQL servers. This article will introduce how to use MTR for automated testing and provide some code examples.

1. Introduction to MTR
MySQL test framework MTR is a tool written in perl language. It can execute a series of test cases, which are saved in the form of sql statements or scripts. MTR provides rich test case management, execution and reporting functions, as well as flexible customization options.

2. MTR installation
Before starting to use MTR, we need to install the MTR tool. MTR is included in the ./mysql-test directory in the MySQL source code. We can install MTR through the following steps:
1. Download the MySQL source code and unzip it.
2. Enter the decompressed directory and execute the command: ./configure --with-mtr
3. Execute the command: make
4. Execute the command: make test

After the installation is completed , we can find the mtr tool in the source directory.

3. Writing test cases
Before we start writing test cases, we need to understand the basic structure of MTR test cases. MTR test cases exist in the form of .sql or .test files. Each test case consists of a series of test case blocks. Each test case block starts with --source file name. Here is a sample test case:

--source include/hello.inc
--source suite1/test1.sql
--source suite1/test2.sql
--source suite2 /test1.sql
--source suite2/test2.sql

In the above example, the test case block contains multiple source files (.sql or .test files), passed- The -source directive is introduced. We can organize test cases as needed and introduce corresponding source files in the order of execution.

We can write various SQL statements and test logic in the test case file. The following is an example test case file (test1.sql):

--disable_warnings
SELECT * FROM users WHERE age > 30;
--enable_warnings

--connect(con1,localhost,root,,test)
--send
USE test;
CREATE TABLE test_table (id INT PRIMARY KEY);
--reap
--connection default
--query
SELECT COUNT(*) FROM test_table;

In the above example, we Some instructions provided by MTR are used, such as --disable_warnings and --enable_warnings are used to control the display of warning information, --connect is used to establish a new database connection, --send is used to send sql statements to the database, --reap Used to wait for the execution of sql statements to complete, --connection is used to switch to the specified database connection, and --query is used to execute database queries.

4. Execute the test case
After writing the test case, we can execute the test case by executing the following command:

./mtr test1.test

Execute The results will be displayed on the command line. If all test cases pass, "OK" is output, otherwise an error message is output. At the same time, MTR will also generate a detailed test report file.

5. Batch execution of test cases
If we have multiple test cases that need to be executed, we can execute them in batches by creating a test suite file (such as run-all.tests).

The following is an example of a run-all.tests file:

--source suite1/test1.test
--source suite1/test2.test
--source suite2 /test1.test
--source suite2/test2.test

We can execute the test suite file through the following command:

./mtr run-all.tests

6. Customization options
MTR provides a wealth of customization options that can be configured as needed. Here are some commonly used options:

--suite=name: Specify the name of the test suite to run.
--testcase=name: Specify the name of the test case to be run.
--filter=name: Filter test cases to be run based on name.
--skip-test=name: Skip the specified test case.
--parallel=n: Specify the number of threads for parallel execution.

7. Summary
This article introduces how to use the MySQL testing framework MTR for automated testing. By writing test cases, executing test cases, and customizing options, we can easily implement functional and performance testing of the MySQL server. MTR's flexibility and powerful features provide developers with a reliable automated testing platform.

The above is a tutorial on how to use the MySQL testing framework MTR for automated testing. I hope it will be helpful to everyone.

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