Feature/code quality setup

.editorconfig

@@ -0,0 +1,78 @@
+root = true
+
+# Общие настройки
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+# C#-файлы
+[*.cs]
+indent_size = 4
+
+# --- Форматирование (валидные правила Roslyn) ---
+csharp_new_line_before_open_brace = all
+csharp_new_line_before_else = true
+csharp_new_line_before_catch = true
+csharp_new_line_before_finally = true
+csharp_new_line_before_members_in_object_initializers = true
+csharp_new_line_before_members_in_anonymous_types = true
+
+csharp_prefer_braces = true:suggestion
+csharp_prefer_simple_using_statement = true:suggestion
+
+# --- Пробелы ---
+csharp_space_after_cast = false
+csharp_space_after_colon_in_inheritance_clause = true
+csharp_space_after_comma = true
+csharp_space_after_keywords_in_control_flow_statements = true
+csharp_space_around_binary_operators = before_and_after
+csharp_space_between_parentheses = false
+csharp_space_between_empty_square_brackets = false
+csharp_space_before_colon_in_inheritance_clause = true
+
+# --- Стиль кода ---
+dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion
+dotnet_style_prefer_inferred_tuple_names = true:suggestion
+dotnet_style_prefer_is_null_check_over_reference_equality_method = true:suggestion
+dotnet_style_require_accessibility_modifiers = for_non_interface_members:suggestion
+
+csharp_style_var_for_built_in_types = true:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+csharp_style_var_elsewhere = false:suggestion
+
+# --- Именование (Microsoft-style) ---
+
+# private / private readonly поля: _camelCase
+dotnet_naming_rule.private_fields.severity = suggestion
+dotnet_naming_rule.private_fields.symbols = private_fields
+dotnet_naming_rule.private_fields.style = camel_case_underscore
+
+dotnet_naming_symbols.private_fields.applicable_kinds = field
+dotnet_naming_symbols.private_fields.applicable_accessibilities = private
+
+dotnet_naming_style.camel_case_underscore.capitalization = camel_case
+dotnet_naming_style.camel_case_underscore.required_prefix = _
+
+# public/internal/protected члены: PascalCase
+dotnet_naming_rule.public_members.severity = suggestion
+dotnet_naming_rule.public_members.symbols = public_members
+dotnet_naming_rule.public_members.style = pascal_case
+
+dotnet_naming_symbols.public_members.applicable_kinds = property,method,field,event,delegate
+dotnet_naming_symbols.public_members.applicable_accessibilities = public,protected,protected_internal,internal
+
+dotnet_naming_style.pascal_case.capitalization = pascal_case
+
+# параметры и локальные переменные: camelCase
+dotnet_naming_rule.parameters_and_locals.severity = suggestion
+dotnet_naming_rule.parameters_and_locals.symbols = parameters_and_locals
+dotnet_naming_rule.parameters_and_locals.style = camel_case
+
+dotnet_naming_symbols.parameters_and_locals.applicable_kinds = parameter,local
+dotnet_naming_symbols.parameters_and_locals.applicable_accessibilities = *
+
+dotnet_naming_style.camel_case.capitalization = camel_case

.gitignore

@@ -131,3 +131,9 @@ $RECYCLE.BIN/
 .DS_Store
 
 _NCrunch*
+
+# =========================
+# IDE
+# =========================
+.idea
+.vs/

Basics.Tests/Basics.Tests.csproj

@@ -11,11 +11,16 @@
 
     <ItemGroup>
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1"/>
+        <PackageReference Include="SonarAnalyzer.CSharp" Version="10.16.1.129956">
+          <PrivateAssets>all</PrivateAssets>
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
         <PackageReference Include="xunit" Version="2.9.3"/>
         <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
           <PrivateAssets>all</PrivateAssets>
           <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
+        <PackageReference Include="coverlet.collector" Version="6.0.2" />
     </ItemGroup>
 
     <ItemGroup>

Basics.Tests/StringFormatterTest.cs

@@ -10,8 +10,8 @@ public void FormatName_WithValidNames_ReturnsFormattedString()
     {
         // Arrange
         var formatter = new StringFormatter();
-        string firstName = "John";
-        string lastName = "Doe";
+        var firstName = "John";
+        var lastName = "Doe";
 
         // Act
         var result = formatter.FormatName(firstName, lastName);
@@ -33,5 +33,184 @@ public void SetPrefix_ChangesPrefixInFormatting()
         // Assert
         Assert.Equal("TEST: Jane Smith", result);
     }
-
-};
+
+    // === Дополнительные тесты для FormatName ===
+
+    [Fact]
+    public void FormatName_WithEmptyFirstName_ReturnsCorrectFormat()
+    {
+        // Arrange
+        var formatter = new StringFormatter();
+
+        // Act
+        var result = formatter.FormatName("", "Doe");
+
+        // Assert
+        Assert.Equal("DEFAULT:  Doe", result); // пробел перед "Doe"
+    }
+
+    [Fact]
+    public void FormatName_WithEmptyLastName_ReturnsCorrectFormat()
+    {
+        // Arrange
+        var formatter = new StringFormatter();
+
+        // Act
+        var result = formatter.FormatName("John", "");
+
+        // Assert
+        Assert.Equal("DEFAULT: John ", result);
+    }
+
+    [Fact]
+    public void FormatName_WithBothNamesEmpty_ReturnsCorrectFormat()
+    {
+        // Arrange
+        var formatter = new StringFormatter();
+
+        // Act
+        var result = formatter.FormatName("", "");
+
+        // Assert
+        Assert.Equal("DEFAULT:  ", result);
+    }
+
+    [Fact]
+    public void FormatName_AfterSetPrefixToNull_UsesEmptyStringAsPrefix()
+    {
+        // Arrange
+        var formatter = new StringFormatter();
+        formatter.SetPrefix(null);
+
+        // Act
+        var result = formatter.FormatName("A", "B");
+
+        // Assert
+        Assert.Equal(": A B", result); // null → ""
+    }
+
+    // === Тесты для CreateEmail ===
+
+    [Fact]
+    public void CreateEmail_WithValidUserNameAndDomain_ReturnsCorrectEmail()
+    {
+        // Act
+        var email = StringFormatter.CreateEmail("john.doe", "example.com");
+
+        // Assert
+        Assert.Equal("john.doe@example.com", email);
+    }
+
+    [Fact]
+    public void CreateEmail_WithEmptyUserName_ReturnsEmailStartingWithAt()
+    {
+        // Act
+        var email = StringFormatter.CreateEmail("", "example.com");
+
+        // Assert
+        Assert.Equal("@example.com", email);
+    }
+
+    [Fact]
+    public void CreateEmail_WithEmptyDomain_ReturnsEmailEndingWithAt()
+    {
+        // Act
+        var email = StringFormatter.CreateEmail("user", "");
+
+        // Assert
+        Assert.Equal("user@", email);
+    }
+
+    [Fact]
+    public void CreateEmail_WithBothEmpty_ReturnsOnlyAt()
+    {
+        // Act
+        var email = StringFormatter.CreateEmail("", "");
+
+        // Assert
+        Assert.Equal("@", email);
+    }
+
+    // === Тесты для RepeatString ===
+
+    [Fact]
+    public void RepeatString_WithPositiveCount_RepeatsCorrectly()
+    {
+        // Act
+        var result = StringFormatter.RepeatString("abc", 3);
+
+        // Assert
+        Assert.Equal("abcabcabc", result);
+    }
+
+    [Fact]
+    public void RepeatString_WithZeroCount_ReturnsEmptyString()
+    {
+        // Act
+        var result = StringFormatter.RepeatString("abc", 0);
+
+        // Assert
+        Assert.Equal("", result);
+    }
+
+    [Fact]
+    public void RepeatString_WithNegativeCount_ReturnsEmptyString()
+    {
+        // Act
+        var result = StringFormatter.RepeatString("abc", -5);
+
+        // Assert
+        Assert.Equal("", result);
+    }
+
+    [Fact]
+    public void RepeatString_WithEmptyInput_ReturnsEmptyString()
+    {
+        // Act
+        var result = StringFormatter.RepeatString("", 5);
+
+        // Assert
+        Assert.Equal("", result);
+    }
+
+    [Fact]
+    public void RepeatString_WithNullInput_ReturnsEmptyString()
+    {
+        // Act
+        var result = StringFormatter.RepeatString(string.Empty, 3);
+
+        // Assert
+        Assert.Equal("", result);
+    }
+
+    [Fact]
+    public void RepeatString_WithSingleCharacter_RepeatsCorrectly()
+    {
+        // Act
+        var result = StringFormatter.RepeatString("x", 4);
+
+        // Assert
+        Assert.Equal("xxxx", result);
+    }
+
+    // === Дополнительно: проверка независимости экземпляров ===
+
+    [Fact]
+    public void MultipleInstances_DoNotInterfereWithEachOther()
+    {
+        // Arrange
+        var formatter1 = new StringFormatter();
+        var formatter2 = new StringFormatter();
+
+        // Act
+        formatter1.SetPrefix("A");
+        formatter2.SetPrefix("B");
+
+        var result1 = formatter1.FormatName("X", "Y");
+        var result2 = formatter2.FormatName("X", "Y");
+
+        // Assert
+        Assert.Equal("A: X Y", result1);
+        Assert.Equal("B: X Y", result2);
+    }
+}

Basics/Basics.csproj

@@ -6,6 +6,16 @@
         <RootNamespace>Basics_0</RootNamespace>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
+        <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
+        <AnalysisLevel>latest</AnalysisLevel>
     </PropertyGroup>
 
+    <ItemGroup>
+        <!-- Анализатор Sonar -->
+        <PackageReference Include="SonarAnalyzer.CSharp" Version="10.16.1.129956">
+            <PrivateAssets>all</PrivateAssets>
+            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+    </ItemGroup>
+
 </Project>

Basics/Models/User.cs

@@ -2,24 +2,28 @@ namespace Basics_0.Models;
 
 public class User
 {
-    public int id;
-    public string Name;
+    private readonly int _id;
+    private readonly string _name;
     private string _email;
 
     public User()
     {
-        id = 0;
-        Name = "Unknown";
+        _id = 0;
+        _name = "Unknown";
         _email = "";
     }
 
     public string GetInfo()
     {
-        return $"User: {Name}, ID: {id}";
+        return $"User: {_name}, ID: {_id}";
     }
 
     public void SetEmail(string email)
     {
         _email = email;
     }
-}
+    public string GetEmail()
+    {
+        return _email;
+    }
+}

Basics/Program.cs

@@ -1,3 +1,7 @@
 // See https://aka.ms/new-console-template for more information
 
-Console.WriteLine("Hello, World!");
+using Basics_0.Services;
+
+var str = StringFormatter.RepeatString("Привет! ", 3);
+
+Console.WriteLine("Hello, World!" + " " + str);