fix(config): Validation Logic for Configuration File Extension #76
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No longer case-sensitive, as the corresponding upstream packages do support case-insensitivity.
Added new Test Cases to check all combinations of File Content and case-insensitive File Extension permutations.
Improved the existing documentation by adding: - ArgumentError knowledge - UnsupportedError knowledge - FormatException knowledge - explicit mention of case-insensitive file extensions
📝 WalkthroughWalkthroughNormalizes configuration file paths to lowercase for case-insensitive extension detection, adds explicit UnsupportedError for unknown extensions, documents caller expectations, and adds comprehensive tests covering JSON/YAML, extension casing, malformed content, unsupported extensions, and missing files. Changes
Sequence Diagram(s)sequenceDiagram
participant Caller
participant ConfigurationParser
participant FileSystem as _loadFile
Caller->>ConfigurationParser: fromFile(filePath)
ConfigurationParser->>FileSystem: _loadFile(filePath)
FileSystem-->>ConfigurationParser: fileContents or throws ArgumentError
alt fileContents returned
ConfigurationParser->>ConfigurationParser: normalize filePath (toLowerCase)
alt endsWith(".json")
ConfigurationParser->>ConfigurationParser: parse JSON via fromString (ConfigEncoding.json)
ConfigurationParser-->>Caller: return parsed Map
else endsWith(".yaml" or ".yml")
ConfigurationParser->>ConfigurationParser: parse YAML via fromString (ConfigEncoding.yaml)
ConfigurationParser-->>Caller: return parsed Map
else unsupported extension
ConfigurationParser-->>Caller: throws UnsupportedError
end
else missing file
FileSystem-->>Caller: throws ArgumentError
end
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Pre-merge checks and finishing touches✅ Passed checks (5 passed)
✨ Finishing touches
🧪 Generate unit tests (beta)
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Actionable comments posted: 3
🧹 Nitpick comments (2)
packages/config/lib/src/config/configuration_parser.dart (1)
32-39: Documentation could be clearer about file existence validation.The documentation states "It is expected that the caller ensures [filePath] exists" but the code still validates file existence in
_loadFile(lines 58-60). While this defensive programming is good practice, the documentation could be more precise, e.g., "Validates that [filePath] exists and throws [ArgumentError] if not found."review_comment_end -->
packages/config/test/config/config_file_load_test.dart (1)
87-88: Consider removing debug print statements.Print statements in test setup add noise to test output. Consider removing them or making them conditional on a debug flag.
- print('Unique JSON extensions for testing: $jsonExtensionSamplesCount'); - print('Unique YAML extensions for testing: $yamlExtensionSamplesCount');review_comment_end -->
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (2)
packages/config/lib/src/config/configuration_parser.dart(1 hunks)packages/config/test/config/config_file_load_test.dart(1 hunks)
🔇 Additional comments (6)
packages/config/lib/src/config/configuration_parser.dart (2)
41-47: LGTM! Case-insensitive extension check implemented correctly.The fix properly addresses issue #75 by normalizing the path to lowercase before extension checking. This ensures that extensions like
.JSON,.Json,.yaml,.YAML, etc., are all correctly recognized while maintaining backward compatibility.review_comment_end -->
53-53: Good addition of explicit error handling.Adding the explicit
UnsupportedErrorfor unrecognized extensions improves error clarity and ensures all code paths are properly handled.review_comment_end -->
packages/config/test/config/config_file_load_test.dart (4)
115-144: Excellent implementation of case-insensitive string generation.The recursive approach correctly generates all case variations while properly handling non-alphabetic characters. The logic is clean and well-structured.
review_comment_end -->
62-89: Good use of mathematical verification for test data integrity.The verification logic ensures uniqueness and correctness of generated extensions using the formula 2^n for n-character strings. This catches configuration errors early.
review_comment_end -->
155-200: Comprehensive test coverage for all scenarios.The test cases thoroughly cover all combinations of content validity, extension correctness, and file formats. Well-organized with descriptive test names.
review_comment_end -->
Also applies to: 202-247
249-276: Good coverage of non-existent file scenarios.Tests properly verify that missing files with supported extensions throw
ArgumentErrorwhile missing files with unsupported extensions throwUnsupportedError, ensuring correct error precedence.review_comment_end -->
For certain case-insensitive File Systems.
christerswahn
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christerswahn
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Great bugfix! Just some restructuring of the tests is needed.
- improved a variable name - made a branch structure slightly more readable
Hardcoded the small output of generator-function.
- better description and coverage - readability improvements
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@christerswahn sir, your review has significantly improved its readability and coverage. Thank you for introducing the GWT technique to my knowledge repertoire. |
christerswahn
changed the title
2 participants
Resolves #75
Its validation logic is no longer based on case-sensitive file extensions, as the corresponding upstream packages do support case-insensitivity. The new Test Cases validate this use-case, by checking all combinations of File Content and case-insensitive File Extension permutations.
Old Behavior
Supported file extensions are case-sensitive:
New Behavior
Supported file extensions are not case-sensitive:
Features
Summary by CodeRabbit
New Features
Bug Fixes
Documentation
Tests