Fix skema default value when create new struct

[bluzky]

Summary by CodeRabbit

• New Features
  • Enhanced default value handling for data schema definitions.
• Tests
  • Added tests for new default value functionality in schema construction.
• Chores
  • Updated project version to 0.2.1.

[coderabbitai]

Walkthrough

This update introduces a function to manage default values in schema definitions, streamlines the process of setting up default values during schema construction, and includes a version bump. Additionally, it adds a comprehensive test suite for the defschema module, ensuring that instance creation with default values and their ability to be overridden are properly validated.

Changes

File Path	Change Summary
lib/schema.ex	Introduced __default_value__ for default value handling in schema definitions. Updated defstruct declaration.
mix.exs	Updated project version from "0.2.0" to "0.2.1".
test/.../defschema_test.exs	Added tests for instance creation with default values and overrides in defschema.

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In the realm of code, where schemas align,
A rabbit hopped forth, with a plan so divine.
"Let defaults be set, with ease and grace,
And versions tick up, in this digital space."
With tests to ensure, that all would behave,
This rabbit’s work, truly bold and brave.
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[sourcery-ai]

Hey @bluzky - I've reviewed your changes and they look great!

General suggestions:

• Consider adding more comprehensive tests to cover edge cases, such as default functions with side effects.
• Review the documentation to ensure it clearly explains how to use dynamic default values.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Docstrings: all looks good

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Review Status

Actionable comments generated: 0

Configuration used: CodeRabbit UI

Commits

Files that changed from the base of the PR and between 12bf549 and 109528d.

Files selected for processing (3)

• lib/schema.ex (1 hunks)
• mix.exs (1 hunks)
• test/defschema_test.exs (1 hunks)

Files skipped from review due to trivial changes (1)

• mix.exs

Additional comments: 3

test/defschema_test.exs (2)

• 6-20: The tests for defschema User with default values and their overrides are well-structured and cover the basic functionality of creating instances with default values and overriding them. However, it's important to ensure that edge cases, such as providing invalid types for fields or missing required fields, are also tested to guarantee robustness.

Consider adding tests for edge cases, such as providing invalid types for fields or missing required fields, to ensure the robustness of the schema validation and default value application.

• 21-21: The tests under Skema.cast_and_validate cover a wide range of scenarios, including casting and validating embedded types, handling arrays of schemas, and dealing with invalid data. These tests are crucial for ensuring the reliability of the schema casting and validation mechanisms.

Great job covering a wide range of scenarios in the Skema.cast_and_validate tests. This comprehensive testing ensures the reliability of the schema casting and validation mechanisms.

lib/schema.ex (1)

• 250-267: The introduction of the __default_value__ function and its integration into the schema definition process is a significant enhancement for handling default values. This change allows for more flexible and robust default value management. However, it's important to ensure that the function handles all possible types of default values correctly, including literals, functions, and potentially complex data structures.

Ensure comprehensive testing of the __default_value__ function to cover all possible types of default values, including literals, functions, and complex data structures. This will help guarantee the robustness of default value handling.