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README.md

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+## Dataset Description
+Microsoft created this large dataset of Java Junit test cases with its corresponding focal methods. 
+It contains 780k pairs of JUnit test cases and focal methods which were extracted from a total of 91K
+Java open source project hosted on GitHub. 
+
+The mapping between test case and focal methods are based heuristics rules and Java developer's best practice.
+
+More information could be found here:
+- [methods2test Github repo](https://github.com/microsoft/methods2test)
+- [Methods2Test: A dataset of focal methods mapped to test cases](https://arxiv.org/pdf/2203.12776.pdf)
+
+## Dataset Schema
+```
+target: <TEST_CASE>
+src_fm: <FOCAL_METHOD>
+src_fm_fc: <FOCAL_CLASS_NAME> <FOCAL_METHOD>
+src_fm_fc_co: <FOCAL_CLASS_NAME> <FOCAL_METHOD> <CONTRSUCTORS>
+src_fm_fc_ms: <FOCAL_CLASS_NAME> <FOCAL_METHOD> <CONTRSUCTORS> <METHOD_SIGNATURES>
+src_fm_fc_ms_ff: <FOCAL_CLASS_NAME> <FOCAL_METHOD> <CONTRSUCTORS> <METHOD_SIGNATURES> <FIELDS>
+```
+
+## Focal Context
+- fm: this representation incorporates exclusively the source
+code of the focal method. Intuitively, this contains the most
+important information for generating accurate test cases for
+the given method.
+- fm+fc: this representations adds the focal class name, which
+can provide meaningful semantic information to the model.
+- fm+fc+c: this representation adds the signatures of the constructor methods of the focal class. The idea behind this
+augmentation is that the test case may require instantiating
+an object of the focal class in order to properly test the focal
+method.
+- fm+fc+c+m: this representation adds the signatures of the
+other public methods in the focal class. The rationale which
+motivated this inclusion is that the test case may need to
+invoke other auxiliary methods within the class (e.g., getters,
+setters) to set up or tear down the testing environment.
+- fm+fc+c+m+f : this representation adds the public fields of
+the focal class. The motivation is that test cases may need to
+inspect the status of the public fields to properly test a focal
+method.
+
+![image/png](https://cdn-uploads.huggingface.co/production/uploads/642382bb6e61cda1b3a20983/PYpNYXweRZyFOp6TbNkyt.png)
+
+ The different levels of focal contexts are the following:
+```
+FM: focal method
+FM_FC: focal method + focal class name
+FM_FC_CO: focal method + focal class name + constructor signatures
+FM_FC_MS: focal method + focal class name + constructor signatures + public method signatures
+FM_FC_MS_FF: focal method + focal class name + constructor signatures + public method signatures + public fields
+```
+
+## Lmitations
+The original authors validate the heuristics by inspecting a
+statistically significant sample (confidence level of 95% within 10%
+margin of error) of 97 samples from the training set. Two authors
+independently evaluated the sample, then met to discuss the disagreements. We found that 90.72% of the samples have a correct
+link between the test case and the corresponding focal method
+
+## Contribution
+All the thanks to the original authors.