Skip to content

Implement Sum and Tests #91

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: develop
Choose a base branch
from
Open

Implement Sum and Tests #91

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
110 changes: 110 additions & 0 deletions ShittyLINQ/Sum.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,110 @@
using System;
using System.Collections.Generic;

namespace ShittyLINQ
{
public static partial class Extensions
{
public static int Sum(this IEnumerable<int> self)
{
if (self == null)
{
throw new ArgumentNullException();
}

var sum = 0;

foreach (var element in self)
{
sum += element;
}

return sum;
}

public static double Sum(this IEnumerable<double> self)
{
if (self == null)
{
throw new ArgumentNullException();
}

var sum = 0d;

foreach (var element in self)
{
sum += element;
}

return sum;
}

public static float Sum(this IEnumerable<float> self)
{
if (self == null)
{
throw new ArgumentNullException();
}

var sum = 0f;

foreach (var element in self)
{
sum += element;
}

return sum;
}

public static int Sum<T>(this IEnumerable<T> self, Func<T, int?> selector)
{
if (self == null || selector == null)
{
throw new ArgumentNullException();
}

var sum = 0;

foreach (var element in self)
{
sum += selector(element).GetValueOrDefault();
}

return sum;
}

public static double Sum<T>(this IEnumerable<T> self, Func<T, double?> selector)
{
if (self == null || selector == null)
{
throw new ArgumentNullException();
}

var sum = 0d;

foreach (var element in self)
{
sum += selector(element).GetValueOrDefault();
}

return sum;
}

public static float Sum<T>(this IEnumerable<T> self, Func<T, float?> selector)
{
if (self == null || selector == null)
{
throw new ArgumentNullException();
}

var sum = 0f;

foreach (var element in self)
{
sum += selector(element).GetValueOrDefault();
}

return sum;
}
}
}
105 changes: 105 additions & 0 deletions ShittyLinqTests/SumTests.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,105 @@
using Microsoft.VisualStudio.TestTools.UnitTesting;
using ShittyLINQ;
using System.Collections.Generic;

namespace ShittyTests
{
[TestClass]
public class SumTests
{
[DataRow(new int[] { 1, 2, 3, 4, 5 }, 15)]
[DataRow(new int[] { 100, 2, 3, 4, 5 }, 114)]
[DataRow(new int[] { 0, 0, 0 }, 0)]
[DataRow(new int[] { -1, -2, -3 }, -6)]
[DataTestMethod]
public void Sum_IntNumbers(IEnumerable<int> testData, int expectedResult)
{
var result = testData.Sum();

Assert.AreEqual(expectedResult, result);
}

[DataRow(new int[] { 1, 2, 3, 4, 5 }, 15)]
[DataRow(new int[] { 100, 2, 3, 4, 5 }, 114)]
[DataRow(new int[] { 0, 0, 0 }, 0)]
[DataRow(new int[] { -1, -2, -3 }, -6)]
[DataTestMethod]
public void Sum_IntNumbers_WithSelector(IEnumerable<int> testData, int expectedResult)
{
var result = testData.Sum(x => x);

Assert.AreEqual(expectedResult, result, 0.02);
}

[DataRow(new double[] { 1.2, 2.5, 3.6, 4.8, 5.5 }, 17.6)]
[DataRow(new double[] { 100.223, 2.523, 3.696, 4.8345, 5.5435 }, 116.82)]
[DataRow(new double[] { 0, 0, 0 }, 0)]
[DataRow(new double[] { -1, -2, -3 }, -6)]
[DataTestMethod]
public void Sum_DoubleNumbers(IEnumerable<double> testData, double expectedResult)
{
var result = testData.Sum();

Assert.AreEqual(expectedResult, result, 0.02);
}

[DataRow(new double[] { 1.2, 2.5, 3.6, 4.8, 5.5 }, 17.6)]
[DataRow(new double[] { 100.223, 2.523, 3.696, 4.8345, 5.5435 }, 116.82)]
[DataRow(new double[] { 0, 0, 0 }, 0)]
[DataRow(new double[] { -1, -2, -3 }, -6)]
[DataTestMethod]
public void Sum_DoubleNumbers_WithSelector(IEnumerable<double> testData, double expectedResult)
{
var result = testData.Sum(x => x);

Assert.AreEqual(expectedResult, result, 0.02);
}

[DataRow(new double[] { 1.2, 2.5, 3.6, 4.8, 5.5 }, 15)]
[DataRow(new double[] { 100.223, 2.523, 3.696, 4.8345, 5.5435 }, 114)]
[DataRow(new double[] { 0, 0, 0 }, 0)]
[DataRow(new double[] { -1, -2, -3 }, -6)]
[DataTestMethod]
public void Sum_DoubleNumbers_WithSelectorToInt(IEnumerable<double> testData, int expectedResult)
{
var result = testData.Sum(x => (int)x);

Assert.AreEqual(expectedResult, result);
}

[DataRow(new float[] { 1.2f, 2.5f, 3.6f, 4.8f, 5.5f }, 17.6f)]
[DataRow(new float[] { 100.223f, 2.523f, 3.696f, 4.8345f, 5.5435f }, 116.82f)]
[DataRow(new float[] { 0, 0, 0 }, 0)]
[DataRow(new float[] { -1, -2, -3 }, -6)]
[DataTestMethod]
public void Sum_FloatNumbers(IEnumerable<float> testData, float expectedResult)
{
var result = testData.Sum();

Assert.AreEqual(expectedResult, result, 0.02f);
}

[DataRow(new float[] { 1.2f, 2.5f, 3.6f, 4.8f, 5.5f }, 17.6f)]
[DataRow(new float[] { 100.223f, 2.523f, 3.696f, 4.8345f, 5.5435f }, 116.82f)]
[DataRow(new float[] { 0f, 0f, 0f }, 0f)]
[DataTestMethod]
public void Sum_FloatNumbers_WithSelector(IEnumerable<float> testData, float expectedResult)
{
var result = testData.Sum(x => x);

Assert.AreEqual(expectedResult, result, 0.02);
}

[DataRow(new float[] { 1.2f, 2.5f, 3.6f, 4.8f, 5.5f }, 15)]
[DataRow(new float[] { 100.223f, 2.523f, 3.696f, 4.8345f, 5.5435f }, 114)]
[DataRow(new float[] { 0f, 0f, 0f }, 0)]
[DataTestMethod]
public void Sum_FloatNumbers_WithSelectorToInt(IEnumerable<float> testData, int expectedResult)
{
var result = testData.Sum(x => (int)x);

Assert.AreEqual(expectedResult, result);
}

}
}