Fix #15

[Eeems]

Summary by CodeRabbit

Release Notes

• Refactor

  • Enhanced stream validation with improved error handling for invalid input.

• Tests

  • Added validation tests for stream error handling.

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📝 Walkthrough

Walkthrough

The pull request updates the ext4 Volume class to enforce stream parameter validation through dynamic method checking instead of strict type checking. The validation requires streams to have callable read, peek, and tell methods, raising InvalidStreamException for invalid inputs. A corresponding test validates this behavior.

Changes

Cohort / File(s)	Summary
Stream Validation Logic ext4/volume.py	Updated Volume.init parameter type hint to io.Reader[bytes]. Replaced strict type check with dynamic validation that verifies the stream has callable read, peek, and tell methods; raises InvalidStreamException with collected error messages if validation fails.
Stream Validation Test test.py	Added new validation test block that attempts to instantiate ext4.Volume with an invalid stream input (integer 1) and verifies InvalidStreamException is raised as expected.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly related PRs

• Fix #6 #7: Updates code to call volume.seek/read instead of volume.stream, directly related to the Stream interface changes in this PR.

Poem

🐰 A rabbit hops through validation gates,
Checking methods that each stream creates,
With peek, read, tell all working right,
The ext4 volume shines so bright! ✨

🚥 Pre-merge checks | ✅ 2 | ❌ 2

❌ Failed checks (1 warning, 1 inconclusive)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.
Title check	❓ Inconclusive	The title 'Fix #15' is vague and generic, referring only to an issue number without describing what the actual fix involves or what changes were made.	Replace with a more descriptive title that summarizes the main change, such as 'Replace strict type checking with dynamic stream validation in Volume.init' or 'Add dynamic validation for stream methods in ext4.Volume'.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Merge Conflict Detection	✅ Passed	✅ No merge conflicts detected when merging into main

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch issue/15

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