Back to Repositories

Testing Download Utilities and Version Management in Alibaba Arthas

This test suite validates the download functionality and version management capabilities of the Arthas diagnostic tool. It ensures proper version retrieval, package downloading from different sources, and file system operations.

Test Coverage Overview

The test suite provides comprehensive coverage of Arthas download utilities, including version management and package retrieval functionality.

Key areas tested include:

Latest release version retrieval
Remote version list verification
Package downloads from Aliyun mirror
Package downloads from central repository
File system operations and path validation

Implementation Analysis

The testing approach utilizes JUnit 4 framework with systematic validation of download operations and version management. The implementation employs TemporaryFolder rule for managing test artifacts and includes timezone-aware test conditions.

Notable patterns include:

Temporary file system management
Version string validation
Geographic-specific test conditions
Multiple download source testing

Technical Details

Testing infrastructure includes:

JUnit 4 test framework
TemporaryFolder Rule for file management
Assert statements for validation
System timezone detection
File path manipulation utilities

Best Practices Demonstrated

The test suite exemplifies robust testing practices with clean separation of concerns and thorough validation.

Notable practices include:

Isolated file system operations
Environment-aware test conditions
Specific version validation
Multiple download source verification
Proper resource cleanup

alibaba/arthas

boot/src/test/java/com/taobao/arthas/boot/DownloadUtilsTest.java

            
package com.taobao.arthas.boot;

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.TimeZone;
import java.util.concurrent.TimeUnit;

import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

public class DownloadUtilsTest {
    @Rule
    public TemporaryFolder rootFolder = new TemporaryFolder();

    @Test
    public void testReadReleaseVersion() {
        String releaseVersion = DownloadUtils.readLatestReleaseVersion();
        Assert.assertNotNull(releaseVersion);
        Assert.assertNotEquals("releaseVersion is empty", "", releaseVersion.trim());
        System.err.println(releaseVersion);
    }

    @Test
    public void testReadAllVersions() {
        List<String> versions = DownloadUtils.readRemoteVersions();
        Assert.assertEquals("", true, versions.contains("3.1.7"));
    }

    @Test
    public void testAliyunDownload() throws IOException {
        // fix travis-ci failed problem
        if (TimeUnit.MILLISECONDS.toHours(TimeZone.getDefault().getOffset(System.currentTimeMillis())) == 8) {
            String version = "3.3.7";
            File folder = rootFolder.newFolder();
            System.err.println(folder.getAbsolutePath());
            DownloadUtils.downArthasPackaging("aliyun", false, version, folder.getAbsolutePath());

            File as = new File(folder, version + File.separator + "arthas" + File.separator + "as.sh");
            Assert.assertTrue(as.exists());
        }
    }

    @Test
    public void testCenterDownload() throws IOException {
        String version = "3.1.7";
        File folder = rootFolder.newFolder();
        System.err.println(folder.getAbsolutePath());
        DownloadUtils.downArthasPackaging("center", false, version, folder.getAbsolutePath());

        File as = new File(folder, version + File.separator + "arthas" + File.separator + "as.sh");
        Assert.assertTrue(as.exists());
    }
}