Solving A Bug

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== Solving A Bug ==
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__NOTOC__
  
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=== Preparation: ===
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{{Learning Activity Overview
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{| border="1"
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|title=
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|-
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Solving a Bug
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|'''Description''' || JUnit is a large, mature free and open source software (FOSS) that is written in Java. Learners will read an open issue in JUnit, find resources to research and understand it, replicate the bug, produce some improved additional test cases while writing a better bug report, and describe the process required to fix the bug.  
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|overview=
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JUnit is a large, mature free and open source software (FOSS) that is written in Java. Learners will read an open issue in JUnit, find resources to research and understand it, replicate the bug, produce some improved additional test cases while writing a better bug report, and describe the process required to fix the bug.  
 +
|prerequisites=
 +
# Including a library in a Java project
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# Running a JUnit Test Case (No in-depth knowledge of JUnit assumed)
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|objectives=
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# Understand, investigate and report details on a real, poorly documented, unsolved issue in JUnit a FOSS application.
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# Reproduce a reported bug.
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# Write an improved bug report and 4) Describe the process required to fix the bug.
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|process skills=
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}}
  
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|-
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=== Background ===
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|'''Source''' || This activity is a specialization of the [[Solving_A_Bug|Solving_A_Bug]].
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|'''Prerequisite Knowledge''' || 1) Including a library in a Java project 2) Running a JUnit Test Case (No in-depth knowledge of JUnit assumed)
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|-
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|'''Estimated Time to Completion''' || 150-180 minutes
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|-
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|'''Learning Objectives''' ||Ability to: 1) Understand, investigate and report details on a real, poorly documented, unsolved issue in JUnit a FOSS application, 2) Reproduce a reported bug, 3) Write an improved bug report and 4)Describe the process required to fix the bug.
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|-
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|'''Materials/Environment''' || Java IDE configured with JUnit 4.12.
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|-
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|'''Additional Information''' || Everything that is necessary to completely answer all of the questions posed in this exercise cannot be found in a single location. Research will be required to successfully respond to all of the parts. Experiment AND think!
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|-
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|'''Rights''' || Licensed JUnit
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|-
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|'''Turn In''' || Report (in Word .docx format) that includes screen shots.
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|}
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=== References: ===
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This project is designed to familiarize students with a FOSS that is widely used, the process for improving this mature application with a complex architecture, and raise their awareness of the FOSS community. JUnit is free and open source software (FOSS) that is written in Java. The scenario: You would like to contribute to JUnit as a tester and bug fixer. Read about the JUnit FOSS community to determine how..The instructions are intentionally obtuse. The student will examine a real world issue with no simple answer and determine how to address it. There is no answer on StackOverflow!
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* [http://junit.org/ JUnit documentation]
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* [https://github.com/junit-team/junit/wiki/I-want-to-help! How to help with the JUnit FOSS]
+
−
Part of your challenge is to find more resources.
+
  
−
=== Background: ===
+
=== Directions ===
−
This project is designed to familiarize you with a FOSS that is widely used, the process for improving this mature application with a complex architecture, and raise awareness of the FOSS community. JUnit is free and open source software (FOSS) that is written in Java. The scenario: You would like to contribute to JUnit as a tester and bug fixer. Read about the JUnit FOSS community to determine how.
+
  
−
=== Directions: ===
 
 
We will use one specific issue in JUnit to learn about the JUnit community.
 
We will use one specific issue in JUnit to learn about the JUnit community.
  
 
== Part 1 - Install a version of JUnit ==
 
== Part 1 - Install a version of JUnit ==
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# You will download junit-4.12.jar at https://github.com/junit-team/junit/wiki/Download-and-Install . Remember the directory location you placed the jar files in.
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 +
# Download junit-4.12.jar at https://github.com/junit-team/junit/wiki/Download-and-Install . Remember the directory location you placed the jar files in.
 
# Create a project in Eclipse.  
 
# Create a project in Eclipse.  
 
# Add the jUnit-4.12 jar in its build path.
 
# Add the jUnit-4.12 jar in its build path.
Line 62: Line 52:
  
 
== Part 5 - What Next? ==
 
== Part 5 - What Next? ==
 +
 
# Assume that this bug sparks your curiosity. State an approach that you would take to find a solution for this bug. A VERY general outline is acceptable.
 
# Assume that this bug sparks your curiosity. State an approach that you would take to find a solution for this bug. A VERY general outline is acceptable.
 
# Outline the approach you would take to commit the fix for the issue if you have successfully coded it. A general outline is acceptable.  
 
# Outline the approach you would take to commit the fix for the issue if you have successfully coded it. A general outline is acceptable.  
  
  
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=== Deliverables ===
 +
 +
Report (in Word .docx format) that includes screen shots.
 +
 +
=== Assessment ===
 +
 +
Suggested 100 point rubric
 +
{| border="1"
 +
|-
 +
|'''How do you report a JUnit bug? How do you volunteer to fix a JUnit bug? (Each worth 10 points)''' || Correct ||  Partial Credit
 +
|-   
 +
|'''Bug, date reported, issue assigned, reproducible and output (4 each)''' ||  Correct || Partial Credit
 +
|-
 +
|'''2 new test cases (10 each)''' || Correct || Partial Credit
 +
|-
 +
|'''General outline for solution process''' || Correct || Partial Credit
 +
|-
 +
|'''General outline to commit a fix''' || Correct || Partial Credit
 +
|}
 +
 +
=== Comments ===
 +
None
 +
 +
=== Additional Information: ===
 +
 +
{{Learning Activity Info
 +
|acm unit=
 +
SE/Software Verification and Validation,
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SDF/Fundamental Programming Concepts
 +
|acm topic=
 +
|difficulty=
 +
Moderately Difficult 
 +
|time=
 +
150-180 minutes
 +
|environment=
 +
Java IDE configured with JUnit 4.12.
 +
|author=
 +
E Brannock
 +
|source=
 +
N/A
 +
|license=
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{{License CC BY SA}}
 +
}}
 +
 +
{| border="1"
 +
|-
 +
|'''Knowledge Area/Knowledge Unit''' ||  SDF and SE
 +
|-
 +
|'''Topic''' || 
 +
|-
 +
|'''Level of Difficulty''' ||
 +
|-
 +
|'''Estimated Time to Completion''' ||
 +
|-
 +
|'''Materials/Environment''' ||
 +
|-
 +
|'''Author''' || 
 +
|-
 +
|'''Source''' || None
 +
|-
 +
|'''License''' || http://creativecommons.org/licenses/
 +
|}
 +
 +
=== Suggestions for the Open Source Project ===
 +
 +
* [http://junit.org/ JUnit documentation]
 +
* [https://github.com/junit-team/junit/wiki/I-want-to-help! How to help with the JUnit FOSS]
 +
Part of your challenge is to find more resources.
  
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--------------------
 
  
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[[Category: Learning_Activity]]
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[[Category:Learning Activity]]
 
[[Category:Quality and Testing]]
 
[[Category:Quality and Testing]]
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[[Category:CS1]]
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[[Category:CS2]]
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[[Category:Good Draft]]

Latest revision as of 12:10, 8 September 2018


Title

Solving a Bug

Overview

JUnit is a large, mature free and open source software (FOSS) that is written in Java. Learners will read an open issue in JUnit, find resources to research and understand it, replicate the bug, produce some improved additional test cases while writing a better bug report, and describe the process required to fix the bug.

Prerequisites
  1. Including a library in a Java project
  2. Running a JUnit Test Case (No in-depth knowledge of JUnit assumed)
Learning
Objectives 		After successfully completing this activity, the learner should be able to:
  1. Understand, investigate and report details on a real, poorly documented, unsolved issue in JUnit a FOSS application.
  2. Reproduce a reported bug.
  3. Write an improved bug report and 4) Describe the process required to fix the bug.
Process Skills
Practiced


Background

This project is designed to familiarize students with a FOSS that is widely used, the process for improving this mature application with a complex architecture, and raise their awareness of the FOSS community. JUnit is free and open source software (FOSS) that is written in Java. The scenario: You would like to contribute to JUnit as a tester and bug fixer. Read about the JUnit FOSS community to determine how..The instructions are intentionally obtuse. The student will examine a real world issue with no simple answer and determine how to address it. There is no answer on StackOverflow!

Directions

We will use one specific issue in JUnit to learn about the JUnit community.

Part 1 - Install a version of JUnit

  1. Download junit-4.12.jar at https://github.com/junit-team/junit/wiki/Download-and-Install . Remember the directory location you placed the jar files in.
  2. Create a project in Eclipse.
  3. Add the jUnit-4.12 jar in its build path.

Part 2 - Locate and describe the JUnit Issue

  1. Locate issue number #226 in the github Social Coding JUnit Issue Tracker at https://github.com/junit-team/junit/issues/226.
    1. How is the issue categorized? Is this a bug or feature request or something else?
    2. What date was it reported?
    3. Has the issue been assigned?
    4. How many participants in the discussion?

Part 3 - Reproduce the JUnit Issue

  1. Using JUnit 4.12, the information supplied about the issue and any other information you may have found in your research answer the following questions:
    1. Did the code shown execute?
    2. Was your result/output the same as the author of the issue?
    3. Take a screen shot of Eclipse when you reproduce the bug, and submit it in your report that answers these questions.
  2. In your opinion, was this bug well-written and easy to understand for the first two cases? Why or why not?

Part 4 - Write an Improved Bug Report

  1. There is a lot of missing information in this issue. Please supply three (at a minimum) pieces of information that should have been included in the description of the issue.
  2. In a clear, and succinct manner provide a better description of the problem described. Please proved 2 additional test cases: one that is successful, one that is not. Show the unsuccessful/successful conclusion for each of your new test cases in screen shots.

Part 5 - What Next?

  1. Assume that this bug sparks your curiosity. State an approach that you would take to find a solution for this bug. A VERY general outline is acceptable.
  2. Outline the approach you would take to commit the fix for the issue if you have successfully coded it. A general outline is acceptable.


Deliverables

Report (in Word .docx format) that includes screen shots.

Assessment

Suggested 100 point rubric

How do you report a JUnit bug? How do you volunteer to fix a JUnit bug? (Each worth 10 points) Correct Partial Credit
Bug, date reported, issue assigned, reproducible and output (4 each) Correct Partial Credit
2 new test cases (10 each) Correct Partial Credit
General outline for solution process Correct Partial Credit
General outline to commit a fix Correct Partial Credit

Comments

None

Additional Information:

ACM BoK
Area & Unit(s)

SE/Software Verification and Validation, SDF/Fundamental Programming Concepts

ACM BoK
Topic(s)
Difficulty

Moderately Difficult

Estimated Time
to Complete

150-180 minutes

Environment /
Materials

Java IDE configured with JUnit 4.12.

Author(s)

E Brannock

Source

N/A

License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License

CC license.png


Knowledge Area/Knowledge Unit SDF and SE
Topic
Level of Difficulty
Estimated Time to Completion
Materials/Environment
Author
Source None
License http://creativecommons.org/licenses/

Suggestions for the Open Source Project

Part of your challenge is to find more resources.

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