[dotnet] Add not-null Response.Value helper

[RenderMichael]

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Add not-null Response.Value helper

Motivation and Context

DRY-ing up future null checks on Response.Value

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

• Added a helper method GetNotNullValue in Response class.

• Ensures Response.Value is not null, throws exception otherwise.

• Improves code reliability by centralizing null checks.

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Changes walkthrough 📝

	Relevant files
Enhancement	Response.cs Add `GetNotNullValue` method to `Response` class                  dotnet/src/webdriver/Response.cs Introduced GetNotNullValue method to handle null checks for Response.Value. Added XML documentation for the new method. Throws WebDriverException if Value is null. +10/-0

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[qodo-merge-pro]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Error Message The exception message "Expected not-null response" could be more descriptive to help with debugging. Consider including context about which response value was null. return Value ?? throw new WebDriverException("Expected not-null response");

[qodo-merge-pro]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
General	✅ Improve error message clarity Suggestion Impact: The commit implements a similar improvement to error messages by making them configurable through a parameter, allowing for more descriptive context to be provided code diff: + internal object EnsureValueIsNotNull(string? errorMessage = null) + { + return Value ?? throw new WebDriverException(errorMessage ?? "Expected not-null response"); Add a more descriptive error message that includes the context of why the value was expected to be non-null, to help with debugging. dotnet/src/webdriver/Response.cs [225] -return Value ?? throw new WebDriverException("Expected not-null response"); +return Value ?? throw new WebDriverException("Response.Value was null when a non-null value was expected"); Apply this suggestion Suggestion importance[1-10]: 6 __ Why: The improved error message provides more context about which property was null, making it easier to diagnose issues. While helpful, this is a minor improvement to error handling.	Low
	Increase method accessibility Consider making the method public to allow external code to safely access non-null values, as this is a useful utility. dotnet/src/webdriver/Response.cs [223] -internal object GetNotNullValue() +public object GetNotNullValue() Apply this suggestion Suggestion importance[1-10]: 3 __ Why: While making the method public could increase its utility, the internal access was likely chosen deliberately for encapsulation. The suggestion could potentially break encapsulation without clear benefits.	Low

[RenderMichael]

Test failures are unrelated to this PR

//java/test/org/openqa/selenium/mobile:NetworkConnectionTest
//java/test/org/openqa/selenium/remote:RemoteWebDriverScreenshotTest
//java/test/org/openqa/selenium/remote:RemoteWebDriverScreenshotTest-firefox-beta
//rb/spec/integration/selenium/webdriver:network-firefox-beta-bidi
//rb/spec/integration/selenium/webdriver:network-firefox-bidi