The technique of using the Arrow Test framework in the Java class library
The technique of using the Arrow Test framework in the Java class library
Arrow Test is a framework for testing the method and function in the Java class library.It provides a simple and powerful way to write and manage test cases to ensure the correctness of the class libraries written in different scenarios.
This article will introduce some common ARROW TEST framework skills to help developers better write and manage test cases.
1. Introduce Arrow Test framework
The Arrow Test framework can be introduced by adding the following dependencies to the pom.xml file:
<dependency>
<groupId>org.apache.arrow</groupId>
<artifactId>arrow-testing</artifactId>
<version>0.17.0</version>
<scope>test</scope>
</dependency>
2. Write ARROW TEST test case
It is very simple to write test cases using ARROW TEST framework.First, you need to create a test class, and then define the test method in this class.Each test method should be marked with "@Test" annotations.
The following is the code of a sample test case:
import org.apache.arrow.testing.memory.InMemoryAllocationManager;
import org.apache.arrow.testing.memory.RootAllocator;
import org.junit.Before;
import org.junit.Test;
public class MyLibraryTest {
private RootAllocator allocator;
@Before
public void setup() {
allocator = new RootAllocator(Long.MAX_VALUE);
}
@Test
public void testMethod() {
try (InMemoryAllocationManager manager = new InMemoryAllocationManager(allocator)) {
// Write test logic here
}
}
}
In the above examples, we first created a Rootallocator in the "Setup" method, and used the "InMeMoryAllocationManager" in the test method to simulate memory allocation.In this way, we can ensure that test cases will not exhaust memory during testing.
3. An assertion function of using the ARROW TEST framework
The Arrow Test framework provides a set of powerful assertions to verify the correctness of the test results.Here are some commonly used assertions:
-` Assertequals (Expected, Actual) `: Verify whether the two values are equal.
-` ASSERTTRUE (Condition) `: Verify whether a certain condition is true.
-` AssertFalse (Condition) `: Verify whether a certain condition is fake.
-` Assertnull (Object) `: Verify whether a certain object is null.
-` ASSERTNOTNULL (Object) `: Verify whether a certain object is not null.
4. Run ARROW TEST test case
It is very simple to run test cases using ARROW TEST framework.Just right -click the strike test class in the IDE, and then select "Run As"> "Junit Test".
When the test case is completed, you will be able to see the execution results of each test method.If any assertion fails, the corresponding error information will be displayed in the test results.
in conclusion
The Arrow Test framework is a powerful Java test framework that can help developers write and manage test cases.This article introduces some common ARROW TEST framework skills, including introducing frameworks, writing test cases, using assertion functions, and running test cases.It is hoped that these techniques will help you write high -quality test cases.
references:
- [ARROW TESTING Framework Official Document] (https://arrow.apache.org/docs/java/testing.html)
