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Fix JSONValue’s interpretation of 0 and 1 #194

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merged 1 commit into from
Dec 12, 2024

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@lawrence-forooghian lawrence-forooghian commented Dec 12, 2024

It was incorrectly interpreting them as booleans. Mistake in 80e8585.

Summary by CodeRabbit

  • New Features

    • Enhanced type handling for boolean and numeric values in the JSONValue enum.
    • Added support for specific numeric test cases in the test suite.
  • Bug Fixes

    • Improved accuracy in distinguishing between boolean and numeric types during initialization.
  • Tests

    • Expanded test coverage for numeric conversions, ensuring correct handling of NSNumber instances representing integers.

It was incorrectly interpreting them as booleans. Mistake in 80e8585.
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coderabbitai bot commented Dec 12, 2024

Walkthrough

This pull request modifies the JSONValue enum in the Sources/AblyChat/JSONValue.swift file, specifically enhancing the init(ablyCocoaPresenceData:) initializer to improve the handling of NSNumber types. The changes ensure that boolean values are correctly identified and processed, preventing misclassification. Additionally, the JSONValueTests in Tests/AblyChatTests/JSONValueTests.swift are updated with new test cases to cover numeric conversions, ensuring comprehensive testing of the updated logic.

Changes

File Change Summary
Sources/AblyChat/JSONValue.swift Modified init(ablyCocoaPresenceData:) to refine handling of NSNumber types for boolean and numeric values.
Tests/AblyChatTests/JSONValueTests.swift Enhanced test cases for numeric values in initWithAblyCocoaPresenceData and toAblyCocoaPresenceData methods, including tests for NSNumber(value: 0) and NSNumber(value: 1). Updated expected JSON structures for end-to-end tests.

Possibly related PRs

  • [ECO-5170] Improve API and internals for presence data #189: The changes in this PR involve modifications to the Presence functionality, which is closely related to the handling of presence data in the main PR. Both PRs focus on improving how presence data is processed and represented, particularly in relation to JSON values.

Suggested reviewers

  • umair-ably
  • maratal

Poem

In the land of code where rabbits play,
We fixed some bugs and brightened the day.
With numbers and booleans now in their place,
Our JSON values dance with grace.
Hopping through tests, we cheer with delight,
For every fix makes our code just right! 🐇✨


📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between afeb0a1 and 7ce9918.

📒 Files selected for processing (2)
  • Sources/AblyChat/JSONValue.swift (1 hunks)
  • Tests/AblyChatTests/JSONValueTests.swift (6 hunks)
🔇 Additional comments (5)
Sources/AblyChat/JSONValue.swift (1)

140-147: LGTM! Correct implementation for distinguishing between boolean and numeric NSNumber values.

The implementation correctly uses identity comparison with CoreFoundation boolean constants to distinguish between boolean and numeric NSNumber values. This is the recommended approach as discussed in the Swift forums.

Let's verify that this fix addresses all cases where NSNumber values might be misinterpreted:

✅ Verification successful

The boolean/number distinction fix is correctly implemented and well-tested

The verification shows that:

  1. The NSNumber boolean handling is only implemented in JSONValue.swift and is properly tested in JSONValueTests.swift with both boolean and numeric cases (0, 1, true, false)
  2. Other NSNumber usages in the codebase (Headers.swift, Metadata.swift) have already been migrated to use Int instead of NSNumber
  3. The only place using kCFBooleanTrue/False comparison is in JSONValue.swift, which is the correct implementation
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for any other potential NSNumber conversions in the codebase that might need similar fixes
rg -g '*.swift' 'NSNumber.*as.*Bool|Bool.*as.*NSNumber'

Length of output: 57


Script:

#!/bin/bash
# Let's search for NSNumber usage patterns more broadly
rg -g '*.swift' 'NSNumber' -A 2 -B 2

Length of output: 3895


Script:

#!/bin/bash
# Let's also check for any other JSONValue initialization from NSNumber
ast-grep --pattern 'init($$$) {
  $$$
  if $number === kCFBooleanTrue {
    $$$
  }
  $$$
}'

Length of output: 94


Script:

#!/bin/bash
# Search for any other boolean conversion patterns
rg -g '*.swift' 'kCFBoolean(True|False)'

Length of output: 202

Tests/AblyChatTests/JSONValueTests.swift (4)

16-17: LGTM! Good test coverage for numeric 0 and 1 values.

The added test cases properly verify that NSNumber values 0 and 1 are correctly interpreted as numbers rather than booleans.


38-39: LGTM! Comprehensive end-to-end test coverage for initialization.

The end-to-end test properly includes the edge cases of 0 and 1 in the JSON structure, ensuring they're correctly deserialized.

Also applies to: 60-61


88-89: LGTM! Proper verification of numeric serialization.

Test cases verify that numeric 0 and 1 values are correctly serialized to NSNumber instances rather than being converted to booleans.


111-112: LGTM! Complete end-to-end serialization test coverage.

The end-to-end serialization test properly includes the edge cases of 0 and 1, ensuring they're correctly handled throughout the entire serialization process.

Also applies to: 133-134


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@lawrence-forooghian lawrence-forooghian merged commit 0bfc356 into main Dec 12, 2024
16 checks passed
@lawrence-forooghian lawrence-forooghian deleted the fix-JSONValue-interpretation-of-0-and-1 branch December 12, 2024 20:39
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