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39th ACM Technical Symposium on Computer Science Education

作者： Thornton, Matthew Edwards, Stephen H. Tan, Roy Patrick Perez-Quinones, Manuel Virginia Tech Dept Comp Sci Blacksburg VA 24061 USA

ISBN: (纸本)9781595939470

Tools like JUnit and its relatives are making software testing reachable even for introductory students. At the same time, however, many introductory computer sciences courses use graphical interfaces as an "attention grabber" for students and as a metaphor for teaching object-oriented programming. Unfortunately, developing software tests for programs that have significant graphical user interfaces is beyond the abilities of typical students (and, for that matter, many educators). This paper describes a framework for combining readily available tools to create an infrastructure for writing tests for Java programs that have graphical user interfaces. These tests are level-appropriate for introductory students and fit in with current approaches in computer science education that incorporate testing in programming assignments. An analysis of data collected during actual student use of the framework in a CS1 course is presented.

关键词： Web-CAT automated grading test-driven development test-first coding JUnit unit testing objectdraw

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Helping students test programs that have graphical user interfaces

Helping students test programs that have graphical user inte...

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International Multi-Conference on Society, Cybernetics and Informatics

作者： Thornton, Matthew Edwards, Stephen H. Tan, Roy Patrick Virginia Tech Dept Comp Sci Blacksburg VA 24061 USA

ISBN: (纸本)9781934272251

Within computer science education, many educators are incorporating software testing activities into regular programming assignments. Tools like JUnit and its relatives make software testing tasks much easier, bringing them into the realm of even introductory students. At the same time, many introductory programming courses are now including graphical interfaces as part of student assignments to improve Student interest and engagement. Unfortunately, writing software tests for programs that have significant graphical user interfaces is beyond the skills of typical students (and many educators). This paper presents initial work at combining educationally oriented and open-source tools to create an infrastructure for writing tests for Java programs that have graphical user interfaces. Critically, these tools are intended to be appropriate for introductory (CS1/CS2) student use, and to dovetail with current teaching approaches that incorporate software testing in programming assignments. We also include in our findings our proposed approach to evaluating our techniques.

关键词： on-line education computer science testdriven development test-first coding GUI objectdraw JUnit

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RoboLIFT: Engaging CS2 Students with testable, Automatically Evaluated Android Applications 12

RoboLIFT: Engaging CS2 Students with Testable, Automatically...

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43rd ACM Technical Symposium on Computer Science Education (SIGCSE 2012)

作者： Allevato, Anthony Edwards, Stephen H. Virginia Tech Dept Comp Sci Blacksburg VA 24061 USA

ISBN: (纸本)9781450310987

Making computer science assignments interesting and relevant is a constant challenge for instructors of introductory courses. Android has become popular in these courses to take advantage of the increasing popularity of smartphones and mobile "apps." This has been shown to increase student engagement but it is only the first step, and we must continue to provide support for teaching methodologies that we have used in the past, such as test-driven development and automated assessment. We have developed RoboLIFT, a library that makes unit testing of Android applications approachable for students. Furthermore, by supporting existing automated grading techniques, we are able to sustain large student enrollments, and we evaluate the effects that using Android has had on student performance.

关键词： Android mobile development smartphone tablet apps test-driven development TDD JUnit test-first coding graphical user interfaces GUI

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Web-CAT: A Web-based Center for Automated testing

Web-CAT: A Web-based Center for Automated Testing

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作者： Shah, Anuj Ramesh Virginia Tech | University

The fundamentals of software testing and related activities are often elusive in undergraduate curricula. A direct consequence of the lack of software testing efforts during education is the huge losses suffered by the software industry when applications are not sufficiently tested. Software practitioners have exhorted faculty members and institutions to teach more software testing in universities. The purpose of this research is to provide answers to the needs of such practitioners and introduce software-testing activities throughout the curriculum. The most important goal is to introduce software-testing education without requiring a significant amount of extra effort on behalf of faculty members or teaching assistants. The approach taken comprises the development of the Web-based Center for Automated testing (Web-CAT) and the introduction of test-driven development (TDD) in courses. Web-CAT serves as a learning environment for software testing tasks and helps automatically assess student assignments. A comparison of student programs developed using Web-CAT with historical records indicated a significant decrease in the number of bugs in submitted programs. Undergraduate students also received exposure to the principles of software testing and were able to write test cases that were on an average better than those generated by an automated test case generator designed specifically for the assignment.

关键词： test-Driven Development Software Engineering across the curriculum Software testing Computer Science education test-first coding Thesis

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The absolute beginner's guide to JUnit in the classroom (abstract only) 12

The absolute beginner's guide to JUnit in the classroom (abs...

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Proceedings of the 43rd ACM technical symposium on Computer Science Education

作者： Stephen H. Edwards Manuel A. Perez-Quinones Virginia Tech Blacksburg VA USA

ISBN: (纸本)9781450310987

Software testing has become popular in introductory courses, but many educators are unfamiliar with how to write software tests or how they might be used in the classroom. This workshop provides a practical introduction to JUnit for educators. JUnit is the Java testing framework that is most commonly used in the classroom. Participants will learn how to write and run JUnit test cases; how-to's for common classroom uses (as a behavioral addition to an assignment specification, as part of manual grading, as part of automated grading, as a student-written activity, etc.); and common solutions to tricky classroom problems (testing standard input/output, randomness, main programs, assignments with lots of design freedom, assertions, and code that calls exit()). Laptop recommended.

关键词： software testing programming assignments java automated assessment test-first coding test-driven development

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The absolute beginner's guide to JUnit in the classroom (abstract only) 14

The absolute beginner's guide to JUnit in the classroom (abs...

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Proceedings of the 45th ACM technical symposium on Computer science education

作者： Stephen H. Edwards Manuel A. Pérez-Quiñones Virginia Tech Blacksburg VA USA

ISBN: (纸本)9781450326056

关键词： automated assessment test-first coding test-driven development programming assignments software testing java

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Web-CAT user group (abstract only) 12

Web-CAT user group (abstract only)

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Proceedings of the 43rd ACM technical symposium on Computer Science Education

作者： Stephen H. Edwards Virginia Tech Blacksburg VA USA

ISBN: (纸本)9781450310987

Web-CAT is the most widely used open-source automated grading system, with about 10,000 users at over 65 institutions worldwide. Its plug-in architecture supports extensibility, with plug-ins for Java (including Objectdraw, JTF, Swing, and Android), C++, Python, Haskell, and more. It is also a powerful tool for educational research data collection. It supports a wide variety of assessment strategies, but is famous for "grading students on how well they test their own code". Web-CAT won the 2006 Premier Award, recognizing high-quality, non-commercial courseware for engineering education. This BOF will allow existing users and new adopters to meet, share experiences, and talk about what works and what doesn't. Information on getting started quickly with Web-CAT will also be provided.

关键词： Java test-driven development automated assessment test-first coding software testing programming assignments

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RoboLIFT: simple GUI-based unit testing of student-written android applications (abstract only) 12

RoboLIFT: simple GUI-based unit testing of student-written a...

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Proceedings of the 43rd ACM technical symposium on Computer Science Education

作者： Anthony Allevato Stephen H. Edwards Virginia Tech Blacksburg VA USA

ISBN: (纸本)9781450310987

Many computer science educators have adopted test-driven development practices in their introductory computer science courses, as a way of encouraging incremental development and decreasing defects in student code. This practice is straightforward for basic data-driven objects, but making unit testing of GUI applications approachable for students poses a larger challenge. We have previously addressed this problem for Swing applications by developing LIFT, a library that allows students to easily write JUnit tests for Swing interfaces. Since then, we have transitioned away from Swing to Android as the development platform in CS2 to better motivate and excite our students about their assignments. To fully support this change, we had to ensure that our students could fully test the GUI portions of their solutions on that platform as well. The Android operating system has significant built-in support for GUI testing, but the standard API is too complex for students to use. In order to address this, we developed RoboLIFT, a framework that eases the task of writing concise and complete unit tests for Android applications. Furthermore, RoboLIFT also has support for automated grading on the Web-CAT automated assessment system, so even if instructors do not require their students to follow test-driven development practices, they can still enjoy the benefits of automated grading by writing correctness tests that use RoboLIFT to exercise the students' graphical user interfaces.

关键词： test-driven development JUnit apps tablet smartphone graphical user interfaces GUI test-first coding mobile development android TDD

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Improving student performance by evaluating how well students test their own programs

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Journal on Educational Resources in Computing 2003年第3期3卷 1–es页

作者： Stephen H. Edwards Virginia Tech

Students need to learn more software testing skills. This paper presents an approach to teaching software testing in a way that will encourage students to practice testing skills in many classes and give them concrete feedback on their testing performance, without requiring a new course, any new faculty resources, or a significant number of lecture hours in each course where testing will be practiced. The strategy is to give students basic exposure to test-driven development, and then provide an automated tool that will assess student submissions on-demand and provide feedback for improvement. This approach has been demonstrated in an undergraduate programming languages course using a prototype tool. The results have been positive, with students expressing appreciation for the practical benefits of test-driven development on programming assignments. Experimental analysis of student programs shows a 28% reduction in defects per thousand lines of code.

关键词： agile methods extreme programming teaching software testing test-driven development test-first coding

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