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---
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language:
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- en
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license: mit
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task_categories:
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- text-generation
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dataset_info:
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features:
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- name: id
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dtype: string
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- name: t
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dtype: string
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- name: t_tc
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dtype: string
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- name: fm
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dtype: string
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- name: fm_fc
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dtype: string
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- name: fm_fc_c
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dtype: string
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- name: fm_fc_c_m
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dtype: string
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- name: fm_fc_c_m_f
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dtype: string
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configs:
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- config_name: fm
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data_files:
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- split: train
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path: data/fm/train-*
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- split: test
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path: data/fm/test-*
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- split: validation
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path: data/fm/validation-*
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- config_name: fm_t
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data_files:
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- split: train
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path: data/fm_t/train-*
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- split: test
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path: data/fm_t/test-*
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- split: validation
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path: data/fm_t/validation-*
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- config_name: fm_fc_t_tc
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data_files:
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- split: train
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path: data/fm_fc_t_tc/train-*
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- split: test
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path: data/fm_fc_t_tc/test-*
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- split: validation
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path: data/fm_fc_t_tc/validation-*
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- config_name: fm_fc_c
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data_files:
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- split: train
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path: data/fm_fc_c/train-*
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- split: test
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path: data/fm_fc_c/test-*
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- split: validation
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path: data/fm_fc_c/validation-*
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- config_name: fm_fc_c_t_tc
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data_files:
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- split: train
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path: data/fm_fc_c_t_tc/train-*
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- split: test
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path: data/fm_fc_c_t_tc/test-*
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- split: validation
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path: data/fm_fc_c_t_tc/validation-*
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- config_name: fm_fc_c_m
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data_files:
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- split: train
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path: data/fm_fc_c_m/train-*
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- split: test
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path: data/fm_fc_c_m/test-*
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- split: validation
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path: data/fm_fc_c_m/validation-*
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- config_name: fm_fc_c_m_t_tc
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data_files:
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- split: train
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path: data/fm_fc_c_m_t_tc/train-*
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- split: test
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path: data/fm_fc_c_m_t_tc/test-*
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- split: validation
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path: data/fm_fc_c_m_t_tc/validation-*
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- config_name: fm_fc_c_m_f
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data_files:
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- split: train
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path: data/fm_fc_c_m_f/train-*
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- split: test
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path: data/fm_fc_c_m_f/test-*
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- split: validation
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path: data/fm_fc_c_m_f/validation-*
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- config_name: fm_fc_c_m_f_t_tc
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data_files:
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- split: train
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path: data/fm_fc_c_m_f_t_tc/train-*
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- split: test
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path: data/fm_fc_c_m_f_t_tc/test-*
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- split: validation
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path: data/fm_fc_c_m_f_t_tc/validation-*
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tags:
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- unit test
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- java
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- code
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---
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## Dataset Description
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Microsoft created the methods2test dataset, consisting of Java Junit test cases with its corresponding focal methods.
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It contains 780k pairs of JUnit test cases and focal methods which were extracted from a total of 91K
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Java open source project hosted on GitHub.
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This is smaller subset of the assembled version of the methods2test dataset.
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It provides convenient access to the different context levels based on the raw source code (e.g. newlines are preserved). The test cases and associated classes are also made available.
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The subset is created by randomly selecting only one sample from each of the 91k projects.
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The mapping between test case and focal methods are based heuristics rules and Java developer's best practice.
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More information could be found here:
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- [methods2test Github repo](https://github.com/microsoft/methods2test)
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- [Methods2Test: A dataset of focal methods mapped to test cases](https://arxiv.org/pdf/2203.12776.pdf)
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## Dataset Schema
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```
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t: <TEST_CASE>
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t_tc: <TEST_CASE> <TEST_CLASS_NAME>
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fm: <FOCAL_METHOD>
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fm_fc: <FOCAL_CLASS_NAME> <FOCAL_METHOD>
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fm_fc_c: <FOCAL_CLASS_NAME> <FOCAL_METHOD> <CONTRSUCTORS>
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fm_fc_c_m: <FOCAL_CLASS_NAME> <FOCAL_METHOD> <CONTRSUCTORS> <METHOD_SIGNATURES>
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fm_fc_c_m_f: <FOCAL_CLASS_NAME> <FOCAL_METHOD> <CONTRSUCTORS> <METHOD_SIGNATURES> <FIELDS>
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```
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## Focal Context
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- fm: this representation incorporates exclusively the source
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code of the focal method. Intuitively, this contains the most
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important information for generating accurate test cases for
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the given method.
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- fm+fc: this representations adds the focal class name, which
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can provide meaningful semantic information to the model.
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- fm+fc+c: this representation adds the signatures of the constructor methods of the focal class. The idea behind this
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augmentation is that the test case may require instantiating
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an object of the focal class in order to properly test the focal
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method.
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- fm+fc+c+m: this representation adds the signatures of the
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other public methods in the focal class. The rationale which
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motivated this inclusion is that the test case may need to
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invoke other auxiliary methods within the class (e.g., getters,
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setters) to set up or tear down the testing environment.
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- fm+fc+c+m+f : this representation adds the public fields of
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the focal class. The motivation is that test cases may need to
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inspect the status of the public fields to properly test a focal
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method.
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The different levels of focal contexts are the following:
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```
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T: test case
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T_TC: test case + test class name
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FM: focal method
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FM_FC: focal method + focal class name
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FM_FC_C: focal method + focal class name + constructor signatures
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FM_FC_C_M: focal method + focal class name + constructor signatures + public method signatures
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FM_FC_C_M_F: focal method + focal class name + constructor signatures + public method signatures + public fields
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```
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## Limitations
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The original authors validate the heuristics by inspecting a
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statistically significant sample (confidence level of 95% within 10%
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margin of error) of 97 samples from the training set. Two authors
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independently evaluated the sample, then met to discuss the disagreements. We found that 90.72% of the samples have a correct
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link between the test case and the corresponding focal method
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## Contribution
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All thanks to the original authors.
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