Чечулин Антон

cs/HomeExercises/HomeExercises.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
     <RootNamespace>HomeExercises</RootNamespace>
     <AssemblyName>ObjectComparison</AssemblyName>
@@ -10,11 +10,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="5.10.3" />
     <PackageReference Include="JetBrains.Annotations" Version="2020.1.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
-    <PackageReference Include="NUnit" Version="3.12.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />
   </ItemGroup>
 
 </Project>

cs/HomeExercises/NumberValidator.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Text.RegularExpressions;
+
+namespace HomeExercises
+{
+    public class NumberValidator
+    {
+        private readonly static Regex numberRegex = new Regex(@"^([+-]?)(\d+)([.,](\d+))?$", RegexOptions.Compiled);
+        private readonly bool onlyPositive;
+        private readonly int precision;
+        private readonly int scale;
+
+        public NumberValidator(int precision, int scale = 0, bool onlyPositive = false)
+        {
+            this.precision = precision;
+            this.scale = scale;
+            this.onlyPositive = onlyPositive;
+            if (precision <= 0)
+                throw new ArgumentException("precision must be a positive number");
+            if (scale < 0 || scale >= precision)
+                throw new ArgumentException("scale must be a non-negative number, scale must be less or equal than precision");
+        }
+
+        public bool IsValidNumber(string value)
+        {
+            // Проверяем соответствие входного значения формату N(m,k), в соответствии с правилом, 
+            // описанным в Формате описи документов, направляемых в налоговый орган в электронном виде по телекоммуникационным каналам связи:
+            // Формат числового значения указывается в виде N(m.к), где m – максимальное количество знаков в числе, включая знак (для отрицательного числа), 
+            // целую и дробную часть числа без разделяющей десятичной точки, k – максимальное число знаков дробной части числа. 
+            // Если число знаков дробной части числа равно 0 (т.е. число целое), то формат числового значения имеет вид N(m).
+
+            if (string.IsNullOrEmpty(value))
+                return false;
+
+            var match = numberRegex.Match(value);
+            if (!match.Success)
+                return false;
+
+            // Знак и целая часть
+            var intPart = match.Groups[1].Value.Length + match.Groups[2].Value.Length;
+            // Дробная часть
+            var fracPart = match.Groups[4].Value.Length;
+
+            if (intPart + fracPart > precision || fracPart > scale)
+                return false;
+
+            if (onlyPositive && match.Groups[1].Value == "-")
+                return false;
+            return true;
+        }
+    }
+}

cs/HomeExercises/Person.cs

@@ -0,0 +1,30 @@
+namespace HomeExercises
+{
+    public class TsarRegistry
+    {
+        public static Person GetCurrentTsar()
+        {
+            return new Person("Ivan IV The Terrible", 54, 170, 70,
+                new Person("Vasili III of Russia", 28, 170, 60, null));
+        }
+    }
+
+    public class Person
+    {
+        public static int IdCounter = 0;
+        public int Age, Height, Weight;
+        public string Name;
+        public Person? Parent;
+        public int Id;
+
+        public Person(string name, int age, int height, int weight, Person? parent)
+        {
+            Id = IdCounter++;
+            Name = name;
+            Age = age;
+            Height = height;
+            Weight = weight;
+            Parent = parent;
+        }
+    }
+}

cs/HomeExercisesTests/HomeExercisesTests.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+    <IsTestProject>true</IsTestProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FluentAssertions" Version="5.10.3" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\HomeExercises\HomeExercises.csproj" />
+  </ItemGroup>
+
+</Project>

cs/HomeExercisesTests/NumberValidatorTests.cs

@@ -0,0 +1,59 @@
+using FluentAssertions;
+using HomeExercises;
+using NUnit.Framework;
+
+namespace HomeExercisesTests
+{
+    public class NumberValidatorTests
+    {
+        [TestCase(-1, 2, true, TestName = "Constructor_PrecisionNotPositive_ThrowsArgumentException")]
+        [TestCase(0, 1, true, TestName = "Constructor_PrecisionIsZero_ThrowsArgumentException")]
+        [TestCase(1, -1, true, TestName = "Constructor_ScaleNegative_ThrowsArgumentException")]
+        [TestCase(1, 2, true, TestName = "Constructor_SacleBiggerPrecision_ThrowsArgumentException")]
+        [TestCase(1, 1, true, TestName = "Constructor_ScaleEqualsPrecision_ThrowsArgumentException")]
+        public void Throws(int precision, int scale, bool onlyPostive)
+        {
+            Action action = () => new NumberValidator(precision, scale, onlyPostive);
+            action.Should().Throw<ArgumentException>();
+        }
+
+        [TestCase(2, 1, true, TestName = "Constructor_PrecisionBiggerScale_NotTrow")]
+        [TestCase(17, 2, false, TestName = "Constructor_OnlyPositiveFalse_NotTrow")]
+        public void NotTrow(int precision, int scale, bool onlyPostive)
+        {
+            Action action = () => new NumberValidator(precision, scale, onlyPostive);
+            action.Should().NotThrow<ArgumentException>();
+        }
+
+        [TestCase(17, 2, true, " ", TestName = "IsValidNumber_NumberEmpty_Fails")]
+        [TestCase(8, 2, true, "1/43", TestName = "IsValidNumber_ValueNotMatch_Fails")]
+        [TestCase(3, 2, true, "00.00", TestName = "IsValidNumber_PrecisionLessCountNumbers_Fails")]
+        [TestCase(3, 2, false, "-0.00", TestName = "IsValidNumber_PrecisionLessCountNumbersAndSign_Fails")]
+        [TestCase(17, 2, true, "0.001", TestName = "IsValidNumber_ScaleLessFractPartLength_Fails")]
+        [TestCase(5, 4, true, "a.12", TestName = "IsValidNumber_LettersInValue_Fails")]
+        [TestCase(3, 2, true, ".12", TestName = "IsValidNumber_WithoutIntPart_Fails")]
+        [TestCase(3, 2, true, "-1.2", TestName = "IsValidNumber_OnlyPositiveTrueAndNegativeNumber_Fails")]
+        [TestCase(3, 2, true, null, TestName = "IsValidNumber_ValueIsNull_Fails")]
+        public void Fails(int precision, int scale, bool onlyPostive, string value)
+        {
+            var validator = new NumberValidator(precision, scale, onlyPostive);
+            var result = validator.IsValidNumber(value);
+            result.Should().BeFalse();
+        }
+
+        [TestCase(4, 2, true, "+1.23", TestName = "IsValidNumber_PrecisionEqualsCountNumbersAndSign_Success")]
+        [TestCase(3, 2, true, "5.13", TestName = "IsValidNumber_PrecisionEqualsCountNumbers_Success")]
+        [TestCase(4, 2, true, "2.25", TestName = "IsValidNumber_PrecisionBiggerCountNumbers_Success")]
+        [TestCase(4, 2, true, "9999", TestName = "IsValidNumber_PrecisionEqualsIntPart_Success")]
+        [TestCase(17, 2, true, "0.23", TestName = "IsValidNumber_ScaleEqualsFractPart_Success")]
+        [TestCase(17, 3, true, "0.12", TestName = "IsValidNumber_ScaleBiggerFractPart_Success")]
+        [TestCase(4, 3, true, "1,1", TestName = "IsValidNumber_SeparatorIsComma_Success")]
+        [TestCase(5, 4, false, "-1.5", TestName = "IsValidNumber_NumberIsNegativeAndOnlyPositiveIsFalse_Success")]
+        public void Success(int precision, int scale, bool onlyPostive, string value)
+        {
+            var validator = new NumberValidator(precision, scale, onlyPostive);
+            var result = validator.IsValidNumber(value);
+            result.Should().BeTrue();
+        }
+    }
+}