Welcome to the Crunch Kata! The purpose of this exercise is evaluate your automated testing and problem solving skills.
You're working on an application that enables its users to explore survey data. These surveys contain many questions, or variables, which may be grouped and organized in a tree-like structure to make them easier to find. Your job is to develop a web component that displays these variables following the specified order structure. (A different team is implementing the interface for arranging the variables into that order--that's not your responsibility.)
The backend team has provided two test fixtures that you can use to start developing the feature. The first one, variables.json, is the catalog of variables found in a dataset. The second, order.json, represents the order in which these variables should be displayed. Each entry in order.json maps to an item in variables.json.
The deliverable should contain the following:
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A component that displays the variable catalog following its hierarchical order. It should be easy to tell the group to which a variable belongs, i.e.
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A service that accepts a variable's name and returns the variable's position in the order.
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A service that accepts a position in the order and returns a variable.
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An HTTP layer that requests the two fixtures.
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Automated tests that confirm that your code works.
Use whatever library, framework, and/or build system that you feel comfortable with.
Publish your work in a GitHub repository.