Java Test Tools

Java Test Tools :  Java has been the language of choice for most of the business solution [rovider in terms of robustness and the other various aspects such as platform independence and bla bla bla. let us have a look at the various tools the industry has in offer for utilising the test process for the various requirements.

Arquillian - Arquillian from JBoss enables you to test Java business logic in a remote or embedded container. Alternatively, it can deploy an archive to the container so the test can interact as a remote client. No longer does writing a test involve system administration tasks, custom scripts, copy-paste Maven configuration, full builds, test classpath mayhem, looking up resources manually or reliance on coarse-grained, black-box testing. The goal is to provide a simple test harness that abstracts away all container lifecycle and deployment from the test logic so developers can easily produce a broad range of integration tests for their enterprise Java applications. Arquillian can either execute a test case inside the container, in which case the test class is deployed by Arquillian along with the code under test, or hold back the test class so it can act as a remote client to the deployed code. All the developer has to do is write the test logic.

VisualVM - A free visual tool, originally from Sun, to monitor and troubleshoot Java applications. Runs on Sun JDK 6, but is able to monitor applications running on JDK 1.4 and higher. Utilizes various available technologies like jvmstat, JMX, the Serviceability Agent (SA), and the Attach API to get data and uses minimal overhead on monitored applications. Capabilities include: automatically detects and lists locally and remotely running Java applications; monitor application performance and memory consumption; profile application performance or analyze memory allocation; is able to save application configuration and runtime environment together with all taken thread dumps, heap dumps and profiler snaphots into a single application snapshot which can be later processed offline.

Checkmarx - Code security analysis tool from Checkmarx; capabilitites include hundreds of out of the box security checks, checks for architectural flaws, coding practice enforcement. Runs on Windows against Java or any other programming language code.

Window Licker - An open source framework for the test-driven development of Java systems through the GUI. Provides a high-level API for controlling and making assertions about graphical user interfaces: for Swing and Dynamic HTML (aka "AJAX") including GWT. Deals with the asynchronous nature of GUI and AJAX programming so the tests don't have to; Controls the GUI by sending native mouse and keyboard events; Handles different keyboard layouts; Produces high quality error messages to help you easily diagnose test failures; Easily extensible to cope with new user interface components.

Cobertura - Free Java tool to identify which parts of a Java program are lacking test coverage and calculate % coverage; based on jcoverage. Instruments already-compiled Java bytecode; execute from ant or from the command line; generate reports in HTML or XML; shows % of lines and branches covered for each class, each package, and for the overall project. Shows McCabe cyclomatic code complexity of each class, and average cyclomatic code complexity for each package, and for the overall product. Can sort HTML results by class name, percent of lines covered, percent of branches covered, etc. and sort in ascending or decending order.

QCare - Static code analysis tool from ATX Software SA, supports Java, as well as COBOL, C#, C++, VB, SQL, PL/SQL, JavaScript and JSP.

JProfiler - Java profiling tool from ej-Technologies GmbH. Check for performance bottlenecks, memory leaks and threading issues.

Parallel-junit - Open source small library extensions for JUnit. Extends the junit.framework.TestSuite class by running tests in parallel, allowing more efficient test execution. Because TestResult and TestListener aren't designed to run tests in parallel, this implementation coordinates the worker threads and reorder event callbacks so that the TestResult object receives them in an orderly manner. In addition, output to System.out and System.err are also serialized to avoid screen clutter.

EMMA - Open-source toolkit, written in pure Java, for measuring and reporting Java code coverage. Targets support for large-scale enterprise software development while keeping individual developer's work fast and iterative. Can instrument classes for coverage either offline or on the fly (using an instrumenting application classloader); supported coverage types: class, method, line, basic block; can detect when a single source code line is covered only partially; coverage stats are aggregated at method, class, package, and "all classes" levels. Reports support drill-down, to user-controlled detail depth; HTML reports support source code linking. Does not require access to the source code; can instrument individial .class files or entire .jars (in place, if desired). Runtime overhead of added instrumentation is small (5-20%); memory overhead is a few hundred bytes per Java class.

PMD - Open source static analyzer scans java source for problems. Capabilities include scanning for: Empty try/catch/finally/switch statements; Dead code - unused local variables, parameters and private methods; Suboptimal code - wasteful string/stringBuffer usage; Overcomplicated expressions - unnecessary if statements, for loops that could be while loops; Duplicate code - copied/pasted code - could indicate copied/pasted bugs.

Hammurapi - Code review tool for Java (and other languages with latest version). Utilizes a rules engine to infer violations in source code. Doesn't fail on source files with errors, or if some inspectors throw exceptions. Parts of tool can be independently extended or replaced. Can review sources in multiple programming languages, perform cross-language inspections, and generate a consolidated report. Eclipse plugin.

TestNG - A testing framework inspired from JUnit and NUnit; supports JDK 5 Annotations, data-driven testing (with @DataProvider), parameters, distribution of tests on slave machines, plug-ins (Eclipse, IDEA, Maven, etc); embeds BeanShell for further flexibility; default JDK functions for runtime and logging (no dependencies).

Concordian - An open source testing framework for Java developed by David Peterson. Utilizes requirements in plain English using paragraphs, tables and proper punctuation in HTML. Developers instrument the concrete examples in each specification with commands (e.g. "set", "execute", "assertEquals") that allow test scenarios to be checked against the system to be tested. The instrumentation is invisible to a browser, but is processed by a Java fixture class that accompanies the specification. The fixture is also a JUnit test case. Results are exported with the usual green and red indicating successes and failures. Site includes info re similarities and diffs from Fitnesse.

DBUnit - Open source JUnit extension (also usable with Ant) targeted for database-driven projects that, among other things, puts a database into a known state between test runs. Enables avoidance of problems that can occur when one test case corrupts the database and causes subsequent tests to fail or exacerbate the damage. Has the ability to export and import database data to and from XML datasets. Can work with very large datasets when used in streaming mode, and can help verify that database data matches expected sets of values.

StrutsTestCase - Open source Unit extension of the standard JUnit TestCase class that provides facilities for testing code based on the Struts framework, including validation methods. Provides both a Mock Object approach and a Cactus approach to actually run the Struts ActionServlet, allowing testing of Struts code with or without a running servlet engine. Uses the ActionServlet controller to test code, enabling testing of the implementation of Action objects, as well as mappings, form beans, and forwards declarations.

DDSteps - A JUnit extension for building data driven test cases. Enables user to parameterize test cases, and run them more than once using different data. Uses external test data in Excel which is injected into test cases using standard JavaBeans properties. Test cases run once for each row of data, so adding new tests is just a matter of adding a row of data in Excel.

StrutsTestCase for JUnit - Open source extension of the standard JUnit TestCase class that provides facilities for testing code based on the Struts framework. Provides both a Mock Object approach and a Cactus approach to actually run the Struts ActionServlet, allowing testing Struts code with or without a running servlet engine. Because it uses the ActionServlet controller to test code, can test not only the implementation of Action objects, but also mappings, form beans, and forwards declarations. Since it already provides validation methods, it's quick and easy to write unit test cases.

JavaNCSS - A free Source Measurement Suite for Java by Clemens Lee. A simple command line utility which collects various source code metrics for Java. The metrics are collected globally, for each class and/or for each function.

Open Source Profilers for Java - Listing of about 25 open source code profilers for Java from 2006 from the web site.

SofCheck Inspector - Tool from SofCheck Inc. for analysis of Java for logic flaws and vulnerabilities. Exlpores all possible paths in byte code and detects flaws and vulnerabilities in areas such as: array index out of bounds, buffer overflows, race conditions, null pointer dereference, dead code, etc. Provides 100% path coverage and can report on values required for 100% unit test coverage. Patented precondition, postcondition and presumption reporting can help detect Malware code insertion.

CodePro - Suite of Java tools from Instantiations Inc. CodePro AnalytixX is an Eclipse-based Java software testing tool and includes features like code audit, metrics, automated unit tests, and more. CodePro Profiler, an Eclipse-based Java profiling tool enables inspection of a running application for performance bottlenecks, detect memory leaks and solve thread concurrency problems. EclipsePro Test automatically generates JUnit tests and includes an editor and analysis tool, provides test cases/results in tabular layout; mouse over failing case and Editor shows the failure message. WindowTester Pro for Swing or SWT UI's enables recording of GUI tests; watches actions and generates test cases automatically; customize the generated Java tests as needed. Provides a rich GUI Test Library, hiding complexities and threading issues of GUI test execution; test cases are based on the JUnit standard

Squish for Java - Automated Java GUI testing tool for Java Swing, AWT, SWT and RCP/Eclipse applications. Record or create/modify scripts using Tcl, Python, JavaScript. Automatic identification of GUI objects of the AUT; inspect AUT's objects, properties and methods on run-time using the Squish Spy. Can be run via a GUI front-end or via command line tools. Can execute tests in a debugger allowing setting breakpoints and stepping through test scripts.

Klocwork - Static analysis technology for Java, C, C++, C#; analyzes defects & security vulnerabilities, architecture & header file anomalies, metrics. Developers can run Klocwork in Eclipse or various other IDE's. Users can select scope of reporting as needed by selecting software component, defect type, and defect state/status.

Coverity Prevent - Tool from Coverity Inc. for analysis of Java source code for security issues. Explores all possible paths in source code and detects security vulnerabilities and defects in multiple areas: memory leaks, memory corruption, and illegal pointer accesses, buffer overruns, format string errors and SQL injections vulnerabilities, multi-threaded programming concurrency errors, etc.

GUIDancer - Eclipse-based tool from Bredex GmbH for automated testing of Java/Swing GUI's, Tests are specified, not programmed - no code or script is produced. Test specification is initially separate from the AUT, allowing test creation before the software is fully functional or available. Specification occurs interactively; components and actions are selected from menus, or by working with the AUT in an advanced "observation mode". Test results and errors viewable in a results view, can be saved as html or xml file.
CMTJava - Complexity measurement tool from Verifysoft GmbH. Includes McCabe cyclomatic complexity, lines-of-code metrics, Halstead metrics, maintainability index.

JavaCov - A J2SE/J2EE Coverage testing tool from Alvicom; specializes in testing to MC/DC (Modified Condition/Decision Coverage) depth. Capabilities include: Eclipse plugin; report generation into HTML and XML; Apache Ant integration and support for test automation.

Jameleon - Open source automated testing harness for acceptance-level and integration testing, written in Java. Separates applications into features and allows those features to be tied together independently, in XML, creating self-documenting automated test cases. These test-cases can then be data-driven and executed against different environments. Easily extensible via plug-ins; includes support for web applications and database testing.
Agitator - Automated java unit testing tool from Agitar Software. Creates instances of classes being exercised, calling each method with selected, dynamically created sets of input data, and analyzing results. Stores all information in XML files; works with Eclipse and a variety of IDEs. Also available are: automated JUnit generation, code-rule enforcement, and more.

PMD - Open source tool scans Java code for potential bugs, dead code, duplicate code, etc. - works with a variety of configurable and modifiable rulesets. Integrates with a wide variety of IDE's.

JLint - Open source static analysis tool will check Java code and find bugs, inconsistencies and synchronization problems by doing data flow analysis and building the lock graph.

Lint4j - A static Java source and byte code analyzer that detects locking and threading issues, performance and scalability problems, and checks complex contracts such as Java serialization by performing type, data flow, and lock graph analysis. Eclipse, Ant and Maven plugins available.

FindBugs - Open source static analysis tool to inspect Java bytecode for occurrences of bug patterns, such as difficult language features, misunderstood API methods, misunderstood invariants when code is modified during maintenance, garden variety mistakes such as typos, use of the wrong boolean, etc. Can report false warnings, generally less than 50%.

CheckStyle - Open source tool for checking code layout issues, class design problems, duplicate code, bug patterns, and much more.

Java Development Tools - Java coverage, metrics, profiler, and clone detection tools from Semantic Designs.
AppPerfect Test Studio - Suite of testing, tuning, and monitoring products for java development from AppPerfect Corp. Includes: Unit Tester, Code Analyzer, Java/J2EE Profiler and other modules.

GJTester - Java unit, regression, and contract (black box) test tool from TreborSoft. Enables test case and test script development without programming. Test private and protected functions, and server application's modules, without implementing test clients, regression testing for JAVA VM upgrades. Useful for testing CORBA, RMI, and other server technologies as well. GUI interface emphasizing ease of use.

QFTest - A cross-platform system and load testing tool from Quality First Software with support for for Java GUI test automation (Swing, Eclipse/SWT, Webstart, Applets, ULC). Includes small-scale test management capabilities, capture/replay mechanism, intuitive user interface and extensive documentation, reliable component recognition and can handle complex and custom GUI objects, integrated test debugger and customizable reporting.

Cactus - A simple open-source test framework for unit testing server-side java code (Servlets, EJBs, Tag Libs, Filters, etc.). Intent is to allow fine-grained continuous testing of all files making up an application: source code but also meta-data files (such as deployment descriptors, etc) through an in-container approach. It uses JUnit and extends it. Typically use within your IDE, or from the command line, using Ant. From Apache Software Foundation.

JUnitPerf - Allows performance testing to be dynamically added to existing JUnit tests. Enables quick composition of a performance test suite, which can then be run automatically and independent of other JUnit tests. Intended for use where there are performance/scalability requirements that need re-checking while refactoring code. By Mike Clark/Clarkware Consulting, licensed under the BSD License.

Abbot Java GUI Test Framework - Testing framework by Timothy Wall provides automated event generation and validation of Java GUI components, improving upon the very basic functions provided by the java.awt.Robot class. (Abbot = "A Better 'Bot'). The framework may be invoked directly from Java code or accessed without programming through the use of scripts via 'Costello', a script editor/recorder. Suitable for use both by developers for unit tests and QA for functional testing. Free - available under the GNU Lesser General Public License

JUnit - Framework to write repeatable java unit tests - a regression testing framework written by Erich Gamma and Kent Beck. For use by developers implementing unit tests in Java. Free Open Source Software released under the IBM Public License and hosted on SourceForge. Site includes a large collection of extensions and documentation.

jfcUnit - Framework for developing automated testing of Java Swing-based applications at the UI layer (as opposed to testing at lower layers, for which JUnit may be sufficient). Provides recording and playback capabilities. Also available as plugins for JBuilder and Eclipse. Free Open Source Software from SourceForge site.

JBench - Freeware Java benchmarking framework to compare algorithms, virtual machines, etc. for speed. Available as binary distribution (including documentation), source distribution, or jar file.
Clover - Code coverage tool for Java from Atlassian. Fully integrated plugin for Eclipse, IntelliJ IDEA and projects using Apache ANT and Maven. View coverage data in XML, HTML, PDF, or via a Swing GUI. Tracks cyclomatic complexity. TestOptimization automatically prioritises just the tests needed to cover the particular changes made.

Structure101 - Java source code visualization tool from Headway Software. Lets user understand, measure, and control architecture, design, composition, and dependencies of code base. Analyzes byte code and shows all dependencies, at all levels and between all levels; method, class, package, application. Measures code complexity using a measurement framework called XS. For Windows, Linux and Mac OS X.

Java Tool Suite from Man Machine Systems - Includes JStyle, a Java source analyzer to generate code comments and metrics such as inheritance depth, Cyclomatic Number, Halstead Measures, etc; JPretty reformats Java code according to specified options; JCover test coverage analyzer; JVerify Java class/API testing tool uses an invasive testing model allowing access to internals of Java objects from within a test script and utilizes a proprietary OO scripting language; JMSAssert, a tool and technique for writing reliable software; JEvolve, an intelligent Java code evolution analyzer that automatically analyzes multiple versions of a Java program and shows how various classes have evolved across versions; can 'reason' about selective need for regression testing Java classes; JBrowser class browser; JSynTest, a syntax testing tool that automatically builds a Java-based test data generator.

JProbe Suite - Collection of Java debugging tools from Quest Software; includes JProbe Profiler and JProbe Memory Debugger for finding performance bottlenecks and memory leaks, LProbe Coverage code coverage tool, and JProbe Threadalyzer for finding deadlocks, stalls, and race conditions. JProfiler freeware version available.

Krakatau Professional for Java - Software metrics tool from Power Software includes more than 70 OO, procedural, complexity, and size metrics related to reusability, maintainability, testability, and clarity. Includes Cyclomatic Complexity, Enhanced Cyclomatic Complexity, Halstead Software Science metrics, LOC metrics and MOOD metrics. Has online advisor for quality improvement.

Jtest - ParaSoft's Jtest is an integrated, automatic unit testing and standards compliance tool for Java. It automatically generates and executes JUnit tests and checks whether code follows 400 coding standards and can automatically correct for many.

DevPartner Java Edition - Debugging/productivity tool from Microfocus (formerly from Compuware, formerly from NuMega) to detect and diagnose Java bugs and memory and performance problems; thread and event analysis, coverage analysis. Integrates with several Java IDE's.

VTune - Intel's performance tuning tool for applications running on Intel processors; includes Java support. Includes suggestions for optimization techniques.

TCAT for Java - Part of Software Research's TestWorks suite of test tools; code coverage analyzer and code analysis for Java; written in Java.
Open Source code analyzers listing - A listing of open source Java code analysis tools written in Java.
Open Source code coverage tools listing - A listing of open source Java code coverage tools written in Java.
Open Source Java test tools listing - A listing of open source tools and frameworks for Java testing, written in Java.
Open Source web test tools listing - A listing of open source web test tools and frameworks written in Java.


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