preview/check-run #51
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WalkthroughThis update introduces a new C# project called "BadCodeProject" designed to demonstrate poor coding practices. It adds intentionally badly formatted and styled C# source files, a solution file, and project files. Additionally, two GitHub Actions workflows are created to automate linting and static code analysis using .NET and ReSharper on pull requests. Changes
Sequence Diagram(s)sequenceDiagram
participant GitHub
participant ActionsRunner
participant .NET SDK
participant ReSharper
GitHub->>ActionsRunner: Pull request opened
ActionsRunner->>ActionsRunner: Checkout code
ActionsRunner->> .NET SDK: Setup .NET 8.0 environment
ActionsRunner->>ActionsRunner: Restore NuGet packages
ActionsRunner->> .NET SDK: Run dotnet format (lint)
ActionsRunner->> ReSharper: Run code inspection
ActionsRunner->>GitHub: Report lint and inspection results
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Actionable comments posted: 9
🔭 Outside diff range comments (1)
BadCode.cs (1)
27-28: Missing newline at end of file.The file is missing a newline at the end, which is a common formatting requirement.
Add a newline at the end of the file:
-} // No newline at end +} // No newline at end +
🧹 Nitpick comments (3)
BadCodeProject/BadCodeProject.csproj (1)
3-8: Minor: redundant SDK‐style properties
<ImplicitUsings>enable</ImplicitUsings>and<Nullable>enable</Nullable>are already the defaults for new SDK-style projects targeting .NET 6+.
Their presence is harmless, but feel free to drop them to keep the file minimal..github/workflows/resharper.yml (1)
11-27: Clean up trailing whitespace & add missing newline – YAML-lint is red-flagging this fileThe workflow currently fails basic lint rules (lines 13, 19, 22, 27) and lacks a final newline.
Trim the spaces and add a line-feed to keep CI green.- uses: actions/checkout@v4␠␠ + uses: actions/checkout@v4 … - dotnet-version: '8.0.x'␠␠ + dotnet-version: '8.0.x' … - run: dotnet restore BadCodeProject.sln␠␠ + run: dotnet restore BadCodeProject.sln … - dotnetVersion: ${{ steps.setup-dotnet.outputs.dotnet-version }} ␠ + dotnetVersion: ${{ steps.setup-dotnet.outputs.dotnet-version }} +.github/workflows/lint.yml (1)
22-23: Add final newline to satisfy linters / POSIX tools
lint.ymlends directly after--severity infowithout a terminating newline.
A single\nkeeps editors & linters quiet.- run: dotnet format BadCodeProject.csproj --verify-no-changes --severity info + run: dotnet format BadCodeProject.csproj --verify-no-changes --severity info⏎
📜 Review details
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Review profile: CHILL
Plan: Pro
📒 Files selected for processing (7)
.github/workflows/lint.yml(1 hunks).github/workflows/resharper.yml(1 hunks)BadCode.cs(1 hunks)BadCodeProject.csproj(1 hunks)BadCodeProject.sln(1 hunks)BadCodeProject/BadCodeProject.csproj(1 hunks)BadCodeProject/Program.cs(1 hunks)
🧰 Additional context used
🪛 YAMLlint (1.37.1)
.github/workflows/resharper.yml
[error] 13-13: trailing spaces
(trailing-spaces)
[error] 19-19: trailing spaces
(trailing-spaces)
[error] 22-22: trailing spaces
(trailing-spaces)
[error] 27-27: no new line character at the end of file
(new-line-at-end-of-file)
[error] 27-27: trailing spaces
(trailing-spaces)
.github/workflows/lint.yml
[error] 23-23: no new line character at the end of file
(new-line-at-end-of-file)
🪛 GitHub Actions: C# Linter
BadCode.cs
[error] 1-25: dotnet format detected multiple whitespace formatting errors. Fix whitespace formatting issues such as deletions, replacements, and insertions of spaces and newlines.
BadCodeProject/Program.cs
[error] 61-74: dotnet format detected whitespace formatting errors including deletions of characters at multiple lines.
[error] 70-70: IDE1007: The name 'condition' does not exist in the current context.
[warning] 5-5: IDE0130: Namespace 'BadCodeProject' does not match folder structure, expected 'BadCodeProject.BadCodeProject'.
[warning] 61-69: IDE0044: Make field readonly.
🪛 GitHub Check: lint
BadCodeProject/Program.cs
[failure] 72-72:
The name 'WriteLine' does not exist in the current context.
[failure] 72-72:
The name 'Console.WriteLine' does not exist in the current context.
[failure] 70-70:
The name 'condition' does not exist in the current context.
🪛 GitHub Actions: ReSharper Inspection
BadCodeProject/Program.cs
[error] 58-58: CS1513: } expected
[error] 70-70: CS1519: Invalid token 'if' in class, record, struct, or interface member declaration
[error] 70-70: CS8124: Tuple must contain at least two elements.
[error] 70-70: CS1026: ) expected
[error] 70-70: CS1519: Invalid token '==' in class, record, struct, or interface member declaration
[error] 72-72: CS1519: Invalid token '(' in class, record, struct, or interface member declaration
[error] 72-72: CS1031: Type expected
[error] 72-72: CS8124: Tuple must contain at least two elements.
[error] 72-72: CS1026: ) expected
[error] 72-72: CS1519: Invalid token '"Redundant"' in class, record, struct, or interface member declaration
[error] 75-75: CS1022: Type or namespace definition, or end-of-file expected
[error] 76-76: CS1022: Type or namespace definition, or end-of-file expected
🔇 Additional comments (9)
BadCodeProject.sln (1)
5-6: GUID is hard-coded placeholder – double-check before shipping
{12345678-1234-1234-1234-123456789012}looks like a dummy GUID.
If this solution is meant for real use, regenerate withdotnet new slnor VS so each project has a unique, stable GUID.BadCodeProject/Program.cs (8)
12-12: Unused variable detected.This demonstrates the "unused variable" anti-pattern where a variable is declared but never used.
This is an intentional example of poor coding practice for demonstration purposes.
15-15: Redundant type specification.This demonstrates explicit type specification where type inference could be used.
This is an intentional example of redundant code for demonstration purposes.
18-19: Potential null reference exception.This code will throw a
NullReferenceExceptionat runtime when trying to access.Lengthon a null string.This is an intentional example of unsafe null access for demonstration purposes.
22-23: Inconsistent naming conventions.This demonstrates mixing naming conventions (snake_case vs camelCase) within the same scope.
This is an intentional example of inconsistent naming for demonstration purposes.
26-29: Unused parameter in local method.This demonstrates the "unused parameter" anti-pattern where a method parameter is declared but never used.
This is an intentional example of poor coding practice for demonstration purposes.
32-32: Redundant parentheses.This demonstrates unnecessary parentheses that don't affect operator precedence.
This is an intentional example of redundant code for demonstration purposes.
35-38: Magic number usage.This demonstrates using a magic number (7) without explanation or named constant.
This is an intentional example of poor coding practice for demonstration purposes.
56-58: Potential multiple enumeration of IEnumerable.This demonstrates the anti-pattern of enumerating the same
IEnumerablemultiple times, which can be inefficient.This is an intentional example of inefficient code for demonstration purposes.
| <!-- BadCodeProject.csproj --> | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
| <PropertyGroup> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <Nullable>enable</Nullable> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| </PropertyGroup> | ||
|
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||
| <!-- explicitly include the demo file so the project builds --> | ||
| <ItemGroup> | ||
| <Compile Include="BadCode.cs" /> | ||
| </ItemGroup> | ||
| </Project> |
There was a problem hiding this comment.
Duplicate / orphaned project file will confuse the build & CI
The repo already contains BadCodeProject/BadCodeProject.csproj, which is the one referenced by the solution and the GitHub-Actions workflows.
This top-level BadCodeProject.csproj is never referenced, points to a different (narrow) set of sources, and will be picked up by dotnet CLI commands that glob for *.csproj.
Expect at least one of these headaches:
• dotnet restore / dotnet build executed from repo root will try to restore & build both projects
• conflicting output paths / package assets
• CI time wasted on a project that should not exist
If the intent was to keep only the project under BadCodeProject/, delete this file; otherwise move it to its own directory and reference it from a separate solution.
- BadCodeProject.csproj ⟵ delete (or move/rename)📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| <!-- BadCodeProject.csproj --> | |
| <Project Sdk="Microsoft.NET.Sdk"> | |
| <PropertyGroup> | |
| <TargetFramework>net8.0</TargetFramework> | |
| <Nullable>enable</Nullable> | |
| <ImplicitUsings>enable</ImplicitUsings> | |
| </PropertyGroup> | |
| <!-- explicitly include the demo file so the project builds --> | |
| <ItemGroup> | |
| <Compile Include="BadCode.cs" /> | |
| </ItemGroup> | |
| </Project> |
🤖 Prompt for AI Agents
In BadCodeProject.csproj lines 1 to 13, this top-level project file is a
duplicate and not referenced by the solution or CI workflows, causing build and
restore conflicts. To fix this, delete this top-level BadCodeProject.csproj file
if the intended project is the one under the BadCodeProject/ directory. If you
need to keep it, move this file into its own folder and ensure it is referenced
by a separate solution to avoid conflicts.
| using System.Threading.Tasks; // comment trailing spaces | ||
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| namespace BadlyFormattedNS { // brace on same line, double spaces | ||
| public class bad_class // wrong casing + double spaces |
There was a problem hiding this comment.
Class naming and formatting violations.
The class declaration violates C# naming conventions and has formatting issues.
Apply this diff to fix the class declaration:
-public class bad_class // wrong casing + double spaces
+public class BadClass📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| public class bad_class // wrong casing + double spaces | |
| public class BadClass |
🤖 Prompt for AI Agents
In BadCode.cs at line 9, the class name uses incorrect casing and has extra
spaces. Rename the class to use PascalCase (e.g., BadClass) and remove any extra
spaces around the class keyword and name to comply with C# naming conventions
and formatting standards.
| using System. Linq; // misplaced space after “System.” | ||
| using System.Threading.Tasks; // comment trailing spaces | ||
|
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||
| namespace BadlyFormattedNS { // brace on same line, double spaces |
There was a problem hiding this comment.
Namespace declaration formatting violations.
The namespace declaration has inconsistent spacing and incorrect brace placement according to C# conventions.
Apply this diff to fix the namespace formatting:
-namespace BadlyFormattedNS { // brace on same line, double spaces
+namespace BadlyFormattedNS
+{📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| namespace BadlyFormattedNS { // brace on same line, double spaces | |
| namespace BadlyFormattedNS | |
| { |
🤖 Prompt for AI Agents
In BadCode.cs at line 8, the namespace declaration has extra spaces and the
opening brace is on the same line, which violates C# formatting conventions.
Remove the extra spaces between the namespace name and the brace, and place the
opening brace on the next line to conform to standard formatting.
| { | ||
| private static readonly int ANSWER =42;// field casing, spacing, rogue constant | ||
|
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| public BadCode( ) {Console . WriteLine( "Created" );} // spaces everywhere & braces |
There was a problem hiding this comment.
Constructor formatting violations.
The constructor has multiple formatting issues: spacing around parentheses, method call formatting, and brace placement.
Apply this diff to fix the constructor:
- public BadCode( ) {Console . WriteLine( "Created" );} // spaces everywhere & braces
+ public BadCode()
+ {
+ Console.WriteLine("Created");
+ }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| public BadCode( ) {Console . WriteLine( "Created" );} // spaces everywhere & braces | |
| public BadCode() | |
| { | |
| Console.WriteLine("Created"); | |
| } |
🤖 Prompt for AI Agents
In BadCode.cs at line 13, the constructor has inconsistent spacing around
parentheses, method call, and braces. Remove extra spaces around the constructor
name and parentheses, place the opening brace on the same line as the
constructor declaration, and format the Console.WriteLine call without spaces
between the method name and parentheses. Ensure the closing brace is on its own
line aligned with the constructor.
| public void DoStuff( IDictionary< string ,List <int>> data ) | ||
| { if(data==null){throw new ArgumentNullException ( nameof ( data ) );} | ||
| foreach( var kvp in data ){ | ||
| Console.WriteLine( $"Key:{kvp.Key}, Count = {kvp.Value.Count}"); } /* crowded */ | ||
| } // incorrect indentation + brace style |
There was a problem hiding this comment.
Method formatting violations and inconsistent indentation.
The DoStuff method demonstrates multiple formatting issues: parameter spacing, brace placement, inconsistent indentation, and crowded code blocks.
Apply this diff to fix the method formatting:
- public void DoStuff( IDictionary< string ,List <int>> data )
- { if(data==null){throw new ArgumentNullException ( nameof ( data ) );}
- foreach( var kvp in data ){
- Console.WriteLine( $"Key:{kvp.Key}, Count = {kvp.Value.Count}"); } /* crowded */
- } // incorrect indentation + brace style
+ public void DoStuff(IDictionary<string, List<int>> data)
+ {
+ if (data == null)
+ {
+ throw new ArgumentNullException(nameof(data));
+ }
+
+ foreach (var kvp in data)
+ {
+ Console.WriteLine($"Key:{kvp.Key}, Count = {kvp.Value.Count}");
+ }
+ }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| public void DoStuff( IDictionary< string ,List <int>> data ) | |
| { if(data==null){throw new ArgumentNullException ( nameof ( data ) );} | |
| foreach( var kvp in data ){ | |
| Console.WriteLine( $"Key:{kvp.Key}, Count = {kvp.Value.Count}"); } /* crowded */ | |
| } // incorrect indentation + brace style | |
| public void DoStuff(IDictionary<string, List<int>> data) | |
| { | |
| if (data == null) | |
| { | |
| throw new ArgumentNullException(nameof(data)); | |
| } | |
| foreach (var kvp in data) | |
| { | |
| Console.WriteLine($"Key:{kvp.Key}, Count = {kvp.Value.Count}"); | |
| } | |
| } |
🤖 Prompt for AI Agents
In BadCode.cs around lines 15 to 19, the DoStuff method has inconsistent
indentation, improper brace placement, and excessive spacing in parameters and
code blocks. Fix this by aligning the method signature parameters without extra
spaces, placing the opening brace on the same line as the method declaration,
properly indenting the method body and foreach loop, and ensuring consistent
spacing inside the code block for readability.
| namespace BadlyFormattedNS { // brace on same line, double spaces | ||
| public class bad_class // wrong casing + double spaces | ||
| { | ||
| private static readonly int ANSWER =42;// field casing, spacing, rogue constant |
There was a problem hiding this comment.
Field declaration formatting and naming violations.
The field declaration has multiple issues: incorrect casing, excessive spacing, and missing space around assignment operator.
Apply this diff to fix the field declaration:
- private static readonly int ANSWER =42;// field casing, spacing, rogue constant
+ private static readonly int Answer = 42;🤖 Prompt for AI Agents
In BadCode.cs at line 11, the field declaration has incorrect casing, excessive
spacing, and lacks spaces around the assignment operator. Rename the field to
use camelCase or PascalCase as per conventions, reduce multiple spaces to single
spaces, and add spaces around the '=' operator to improve readability and adhere
to style guidelines.
| using System; using System.Collections.Generic; // extra spaces + wrong on-line ordering | ||
| using System. Linq; // misplaced space after “System.” | ||
| using System.Threading.Tasks; // comment trailing spaces |
There was a problem hiding this comment.
Multiple using statement formatting violations.
The using statements demonstrate several formatting issues:
- Extra spaces around keywords and operators
- Multiple using statements on the same line
- Misplaced space after "System."
- Trailing spaces in comments
Apply this diff to fix the using statement formatting:
-using System; using System.Collections.Generic; // extra spaces + wrong on-line ordering
-using System. Linq; // misplaced space after "System."
-using System.Threading.Tasks; // comment trailing spaces
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| using System; using System.Collections.Generic; // extra spaces + wrong on-line ordering | |
| using System. Linq; // misplaced space after “System.” | |
| using System.Threading.Tasks; // comment trailing spaces | |
| using System; | |
| using System.Collections.Generic; | |
| using System.Linq; | |
| using System.Threading.Tasks; |
🤖 Prompt for AI Agents
In BadCode.cs around lines 4 to 6, fix the using statements by placing each
using directive on its own line without extra spaces, remove the space after
"System." in "System.Linq", and eliminate trailing spaces after comments. Ensure
proper ordering and consistent formatting with no multiple using statements on
the same line.
| internal static async Task < IEnumerable < int > >GetValuesAsync( ) | ||
| { | ||
| await Task . Delay (100 ) ; // spaces around dot + inside parentheses | ||
| return new List<int>{1 ,2,3 , 4}; // inconsistent spacing | ||
| } // extra spaces before brace | ||
| } |
There was a problem hiding this comment.
Async method formatting violations.
The async method has multiple formatting issues: spacing around generic type parameters, method call formatting, and brace placement.
Apply this diff to fix the async method:
- internal static async Task < IEnumerable < int > >GetValuesAsync( )
-{
- await Task . Delay (100 ) ; // spaces around dot + inside parentheses
- return new List<int>{1 ,2,3 , 4}; // inconsistent spacing
-} // extra spaces before brace
+ internal static async Task<IEnumerable<int>> GetValuesAsync()
+ {
+ await Task.Delay(100);
+ return new List<int> { 1, 2, 3, 4 };
+ }🤖 Prompt for AI Agents
In BadCode.cs around lines 21 to 26, fix the async method formatting by removing
extra spaces around generic type parameters, method calls, and braces. Ensure no
spaces exist around dots in method calls, no spaces inside parentheses,
consistent spacing in collections, and place the closing brace correctly without
extra spaces.
| private int privateField = 0; | ||
| public int publicField = 0; | ||
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| // Unnecessary cast | ||
| object obj = "string"; | ||
| string str = (string)obj; | ||
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| // Redundant conditional | ||
| bool condition = true; | ||
| if (condition == true) | ||
| { | ||
| Console.WriteLine("Redundant"); | ||
| } | ||
| } |
There was a problem hiding this comment.
Critical compilation errors due to invalid syntax.
The code has multiple compilation errors because local variables and control flow statements are incorrectly placed outside of method scope. Local variables cannot have access modifiers, and the if statement is not properly contained within a method.
Apply this diff to fix the compilation errors:
- // Inconsistent access modifiers
- private int privateField = 0;
- public int publicField = 0;
-
- // Unnecessary cast
- object obj = "string";
- string str = (string)obj;
-
- // Redundant conditional
- bool condition = true;
- if (condition == true)
- {
- Console.WriteLine("Redundant");
- }
+ // Inconsistent access modifiers (corrected - local variables cannot have access modifiers)
+ int privateField = 0;
+ int publicField = 0;
+
+ // Unnecessary cast
+ object obj = "string";
+ string str = (string)obj;
+
+ // Redundant conditional
+ bool condition = true;
+ if (condition == true)
+ {
+ Console.WriteLine("Redundant");
+ }Committable suggestion skipped: line range outside the PR's diff.
🧰 Tools
🪛 GitHub Check: lint
[failure] 72-72:
The name 'WriteLine' does not exist in the current context.
[failure] 72-72:
The name 'Console.WriteLine' does not exist in the current context.
[failure] 70-70:
The name 'condition' does not exist in the current context.
🪛 GitHub Actions: C# Linter
[error] 61-74: dotnet format detected whitespace formatting errors including deletions of characters at multiple lines.
[error] 70-70: IDE1007: The name 'condition' does not exist in the current context.
[warning] 61-69: IDE0044: Make field readonly.
🪛 GitHub Actions: ReSharper Inspection
[error] 70-70: CS1519: Invalid token 'if' in class, record, struct, or interface member declaration
[error] 70-70: CS8124: Tuple must contain at least two elements.
[error] 70-70: CS1026: ) expected
[error] 70-70: CS1519: Invalid token '==' in class, record, struct, or interface member declaration
[error] 72-72: CS1519: Invalid token '(' in class, record, struct, or interface member declaration
[error] 72-72: CS1031: Type expected
[error] 72-72: CS8124: Tuple must contain at least two elements.
[error] 72-72: CS1026: ) expected
[error] 72-72: CS1519: Invalid token '"Redundant"' in class, record, struct, or interface member declaration
🤖 Prompt for AI Agents
In BadCodeProject/Program.cs around lines 61 to 74, the code declares local
variables with access modifiers and places control flow statements outside any
method, causing compilation errors. To fix this, move all variable declarations
and the if statement inside a valid method (e.g., Main or another method),
remove access modifiers from local variables, and ensure all executable code is
within method bodies.
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