[dotnet] Refactor away private constructor from Response

[RenderMichael]

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Description

This removes one of the three constructors on the Response type, moving dictionary parsing responsibility to the correct method FromJson.

Motivation and Context

Incremental step, part of desires I expressed in #14839 about making the Response type more immutable.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

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PR Type

enhancement

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Description

• Refactored the Response class to remove the private constructor that accepted a dictionary, simplifying the class design.
• Enhanced the FromJson method to handle JSON deserialization and object creation, improving code readability and maintainability.
• Improved error handling by throwing an exception when a null JSON response is encountered.
• Simplified the logic for setting SessionId and Value properties, ensuring more robust and clear code execution.

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Changes walkthrough 📝

	Relevant files
Enhancement	Response.cs Refactor `Response` class to improve JSON handling              dotnet/src/webdriver/Response.cs Removed the private constructor that accepted a dictionary. Refactored FromJson method to handle JSON deserialization and object creation. Improved error handling for null JSON responses. Simplified logic for setting SessionId and Value properties. +22/-22

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[qodo-merge-pro]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Null Reference The code doesn't check if rawResponse["sessionId"] is null before calling ToString() on it, which could cause a NullReferenceException Code Smell The method contains commented TODO about removing an if statement, but the code still keeps the logic. This should either be addressed or the comment should be removed/updated

[qodo-merge-pro]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Score
Possible issue	Add defensive null handling to prevent potential null reference exceptions when accessing dictionary values Add null check for rawResponse["sessionId"] before calling ToString() to prevent potential NullReferenceException. dotnet/src/webdriver/Response.cs [73-76] -if (rawResponse["sessionId"] != null) +if (rawResponse["sessionId"] is not null) { - @this.SessionId = rawResponse["sessionId"].ToString(); + var sessionId = rawResponse["sessionId"]; + @this.SessionId = sessionId?.ToString(); } Apply this suggestion Suggestion importance[1-10]: 8 Why: The suggestion addresses a potential null reference vulnerability by adding proper null checks and safe access patterns, which is important for code robustness and preventing runtime exceptions.	8
	Validate dictionary key existence before accessing to prevent potential exceptions Add validation for dictionary key existence before accessing valueDictionary["value"] to prevent potential KeyNotFoundException. dotnet/src/webdriver/Response.cs [115-117] -else +else if (valueDictionary.ContainsKey("value")) { @this.Value = valueDictionary["value"]; } Apply this suggestion Suggestion importance[1-10]: 8 Why: The suggestion prevents a potential KeyNotFoundException by validating the key existence before accessing the dictionary value, which is a critical defensive programming practice.	8

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[nvborisenko]

Thanks @RenderMichael !