Bug/fix issue 143

[rjmurillo]

Add improved detections for overridable members in Moq1200. Rule 1201 recommends the user not use .Setup for async methods; however, in cases where that is suppressed, Moq1200 was incorrectly indicating the .Result property was not overridable. Moq1200 now shares the same logic as 1201 and will not perform analysis when the condition is observed.

Changes

• Move detection for Async return to common location
• Update Moq1200 with detection logic from Moq1201
• Add test case from Moq1200 incorrectly firing on overridable member #143 to catch issue

Resolves #143

[coderabbitai]

Caution

Review failed

The head commit changed during the review from 615fd29 to 75c6ed5.

📝 Walkthrough

📝 Walkthrough

Walkthrough

The changes include updates to the ISymbolExtensions class by adding a method to check if a method returns a Task or ValueTask. The SetupShouldBeUsedOnlyForOverridableMembersAnalyzer class has been modified for better control flow and clarity, with an added method for property analysis and an updated method signature. The SetupShouldNotIncludeAsyncResultAnalyzer class has removed a method, simplifying its logic by utilizing the new method from ISymbolExtensions. Additionally, tests for the analyzer have been enhanced to improve output and coverage.

Changes

File	Change Summary
src/Moq.Analyzers/Common/ISymbolExtensions.cs	Added method: public static bool IsMethodReturnTypeTask(this ISymbol methodSymbol)
src/Moq.Analyzers/SetupShouldBeUsedOnlyForOverridableMembersAnalyzer.cs	Added method: private static bool IsTaskResultProperty(IPropertySymbol propertySymbol, SyntaxNodeAnalysisContext context); Updated method signature: private static bool IsMethodOverridable(ISymbol methodSymbol) (added MethodImpl attribute)
src/Moq.Analyzers/SetupShouldNotIncludeAsyncResultAnalyzer.cs	Removed method: private static bool IsMethodReturnTypeTask(ISymbol methodSymbol)
tests/Moq.Analyzers.Test/SetupShouldBeUsedOnlyForOverridableMembersAnalyzerTests.cs	Updated constructor signature to accept ITestOutputHelper; Added new test case for IParameterlessAsyncMethod with DoSomethingAsync(); Updated ShouldAnalyzeSetupForOverridableMembers method for enhanced test setup.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant Analyzer
    participant ISymbolExtensions

    User->>Analyzer: Analyze method called
    Analyzer->>ISymbolExtensions: Check if method returns Task
    ISymbolExtensions-->>Analyzer: Return result
    Analyzer->>User: Diagnostic report generated

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[coderabbitai]

Actionable comments posted: 7

🧹 Outside diff range comments (1)

src/Moq.Analyzers/SetupShouldNotIncludeAsyncResultAnalyzer.cs (1)

Line range hint 1-50: Summary: Refactoring improves code organization, ensure thorough testing

The changes in this file are part of a larger refactoring effort to centralize logic in the ISymbolExtensions class. This is generally a good practice for improving code organization and maintainability.

However, given the critical nature of the IsMethodReturnTypeTask check in this analyzer, I recommend:

1. Thoroughly test the analyzer with various async method setups to ensure no edge cases are missed.
2. Consider adding unit tests specifically for this analyzer if they don't already exist.
3. Perform integration tests to verify that the analyzer correctly identifies issues in real-world scenarios.

These steps will help ensure that the refactoring hasn't inadvertently changed the behavior of the analyzer.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: ASSERTIVE

📥 Commits

Files that changed from the base of the PR and between 44b8ae6 and 9c276ac.

📒 Files selected for processing (4)

• src/Moq.Analyzers/Common/ISymbolExtensions.cs (1 hunks)
• src/Moq.Analyzers/SetupShouldBeUsedOnlyForOverridableMembersAnalyzer.cs (2 hunks)
• src/Moq.Analyzers/SetupShouldNotIncludeAsyncResultAnalyzer.cs (2 hunks)
• tests/Moq.Analyzers.Test/SetupShouldBeUsedOnlyForOverridableMembersAnalyzerTests.cs (2 hunks)

🧰 Additional context used

📓 Path-based instructions (4)

src/Moq.Analyzers/Common/ISymbolExtensions.cs (1)

Pattern **/*.cs: I need your help tracking down and fixing some bugs that have been reported in this codebase.

I suspect the bugs are related to:

• Incorrect handling of edge cases
• Off-by-one errors in loops or array indexing
• Unexpected data types
• Uncaught exceptions
• Concurrency issues
• Improper configuration settings

To diagnose:

1. Review the code carefully and systematically
2. Trace the relevant code paths
3. Consider boundary conditions and potential error states
4. Look for antipatterns that tend to cause bugs
5. Run the code mentally with example inputs
6. Think about interactions between components

When you find potential bugs, for each one provide:

1. File path and line number(s)
2. Description of the issue and why it's a bug
3. Example input that would trigger the bug
4. Suggestions for how to fix it

After analysis, please update the code with your proposed fixes. Try to match the existing code style. Add regression tests if possible to prevent the bugs from recurring.

I appreciate your diligence and attention to detail! Let me know if you need any clarification on the intended behavior of the code.

src/Moq.Analyzers/SetupShouldBeUsedOnlyForOverridableMembersAnalyzer.cs (1)

Pattern **/*.cs: I need your help tracking down and fixing some bugs that have been reported in this codebase.

I suspect the bugs are related to:

• Incorrect handling of edge cases
• Off-by-one errors in loops or array indexing
• Unexpected data types
• Uncaught exceptions
• Concurrency issues
• Improper configuration settings

To diagnose:

1. Review the code carefully and systematically
2. Trace the relevant code paths
3. Consider boundary conditions and potential error states
4. Look for antipatterns that tend to cause bugs
5. Run the code mentally with example inputs
6. Think about interactions between components

When you find potential bugs, for each one provide:

1. File path and line number(s)
2. Description of the issue and why it's a bug
3. Example input that would trigger the bug
4. Suggestions for how to fix it

After analysis, please update the code with your proposed fixes. Try to match the existing code style. Add regression tests if possible to prevent the bugs from recurring.

I appreciate your diligence and attention to detail! Let me know if you need any clarification on the intended behavior of the code.

src/Moq.Analyzers/SetupShouldNotIncludeAsyncResultAnalyzer.cs (1)

Pattern **/*.cs: I need your help tracking down and fixing some bugs that have been reported in this codebase.

I suspect the bugs are related to:

• Incorrect handling of edge cases
• Off-by-one errors in loops or array indexing
• Unexpected data types
• Uncaught exceptions
• Concurrency issues
• Improper configuration settings

To diagnose:

1. Review the code carefully and systematically
2. Trace the relevant code paths
3. Consider boundary conditions and potential error states
4. Look for antipatterns that tend to cause bugs
5. Run the code mentally with example inputs
6. Think about interactions between components

When you find potential bugs, for each one provide:

1. File path and line number(s)
2. Description of the issue and why it's a bug
3. Example input that would trigger the bug
4. Suggestions for how to fix it

After analysis, please update the code with your proposed fixes. Try to match the existing code style. Add regression tests if possible to prevent the bugs from recurring.

I appreciate your diligence and attention to detail! Let me know if you need any clarification on the intended behavior of the code.

tests/Moq.Analyzers.Test/SetupShouldBeUsedOnlyForOverridableMembersAnalyzerTests.cs (1)

Pattern **/*.cs: I need your help tracking down and fixing some bugs that have been reported in this codebase.

I suspect the bugs are related to:

• Incorrect handling of edge cases
• Off-by-one errors in loops or array indexing
• Unexpected data types
• Uncaught exceptions
• Concurrency issues
• Improper configuration settings

To diagnose:

1. Review the code carefully and systematically
2. Trace the relevant code paths
3. Consider boundary conditions and potential error states
4. Look for antipatterns that tend to cause bugs
5. Run the code mentally with example inputs
6. Think about interactions between components

When you find potential bugs, for each one provide:

1. File path and line number(s)
2. Description of the issue and why it's a bug
3. Example input that would trigger the bug
4. Suggestions for how to fix it

After analysis, please update the code with your proposed fixes. Try to match the existing code style. Add regression tests if possible to prevent the bugs from recurring.

I appreciate your diligence and attention to detail! Let me know if you need any clarification on the intended behavior of the code.

🔇 Additional comments (5)

src/Moq.Analyzers/SetupShouldNotIncludeAsyncResultAnalyzer.cs (2)

1-1: LGTM: Addition of ISymbolExtensions alias

The addition of the alias for ISymbolExtensions from the Moq.Analyzers.Common namespace is a good practice. It improves code readability and maintainability by clearly indicating the source of the ISymbolExtensions class.

---

50-50: Verify the behavior of IsMethodReturnTypeTask()

The change to use symbolInfo.Symbol.IsMethodReturnTypeTask() looks good and aligns with the removal of the local IsMethodReturnTypeTask method. This likely improves code maintainability by centralizing the logic in the ISymbolExtensions class.

However, we should verify that the new implementation covers all the cases that the previous implementation did, especially regarding the handling of Task and ValueTask.

Let's verify the implementation of IsMethodReturnTypeTask() in ISymbolExtensions:

✅ Verification successful

Verification Successful: IsMethodReturnTypeTask() Handles All Relevant Cases

The IsMethodReturnTypeTask() implementation in ISymbolExtensions correctly handles both Task and ValueTask, including their generic variants and property accesses. The change maintains the intended functionality and improves code maintainability by centralizing the logic.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the implementation of IsMethodReturnTypeTask() in ISymbolExtensions

# Test: Search for the IsMethodReturnTypeTask method implementation
ast-grep --lang csharp --pattern $'public static bool IsMethodReturnTypeTask(this ISymbol symbol)
{
  $$$
}'

# Test: Check if the method handles both Task and ValueTask
rg --type csharp -A 10 'IsMethodReturnTypeTask'

Length of output: 4086

tests/Moq.Analyzers.Test/SetupShouldBeUsedOnlyForOverridableMembersAnalyzerTests.cs (2)

6-6: LGTM: Constructor updated to include ITestOutputHelper

The addition of ITestOutputHelper to the constructor is a good practice for xUnit tests. It allows for better logging and debugging capabilities during test execution.

---

Line range hint 1-71: Overall assessment: Improved test structure and coverage

The changes to this test file enhance the overall quality of the tests for the SetupShouldBeUsedOnlyForOverridableMembersAnalyzer. The addition of ITestOutputHelper, the new test case for async methods, and the more comprehensive test setup all contribute to better test coverage and maintainability.

While no critical bugs were found, consider implementing the suggested improvements:

1. Refactor the async test case to use ReturnsAsync instead of .Result.
2. Add a comment explaining the purpose of the source string in the ShouldAnalyzeSetupForOverridableMembers method.

These changes will further enhance the robustness and readability of the tests.

src/Moq.Analyzers/SetupShouldBeUsedOnlyForOverridableMembersAnalyzer.cs (1)

39-43: Enhance Readability with Early Exit Pattern

The inverted condition and early return improve the clarity and readability of the Analyze method by reducing nested logic.

[codeclimate]

Code Climate has analyzed commit 75c6ed5 and detected 10 issues on this pull request.

Here's the issue category breakdown:

Category	Count
Complexity	5
Style	5

View more on Code Climate.

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ -0.43% (target: -1.00%)	❌ 86.49% (target: 95.00%)

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (44b8ae6)	522	471	90.23%
Head commit (75c6ed5)	539 (+17)	484 (+13)	89.80% (-0.43%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#221)	37	32	86.49%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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