i need help fixing my code. here is the assignment Using the definition for factorial from here and boundary analysis as described in the class video, write the set of Test Cases to test the C# function

int Factorial$($int n$)$

which takes an integer n and returns the factorial if such number exists and can be calculated and throws ArgumentOutOfRangeException if the factorial doesn't exist or can't be calculated.

Name your Test Cases TestMethodX where X is a counter starting from $1.$ my code: using Microsoft.VisualStudio.TestTools.UnitTesting;

using System;

using System.Collections.Generic;

$[$TestClass$]$

public partial class UnitTests

$\{$

$[$TestMethod$]$

public void TestMethod$1()$

$\{$

Assert.AreEqual$(1,$ Factorial$(0))$;

$\}$

$//$Your code starts here

$[$TestMethod$]$

public void TestMethod$2()$

$\{$

Assert.AreEqual$(1,$ Factorial$(1))$; $//$ Testing factorial of $1$

$\}$

$[$TestMethod$]$

public void TestMethod$3()$

$\{$

Assert.AreEqual$(479001600,$ Factorial$(12))$; $//$ Upper valid boundary before overflow

$\}$

$[$TestMethod$]$

$[$ExpectedException$($typeof$($ArgumentOutOfRangeException$))]$

public void TestMethod$4()$

$\{$

Factorial$(-1)$; $//$ Testing lower invalid boundary $($negative number$)$

$\}$

$[$TestMethod$]$

public void TestMethod$5()$

$\{$

$//$ Testing that Factorial$(4)$ correctly calculates to $24.$

int expected $=24$;

int actual $=$ Factorial$(4)$;

Assert.AreEqual$($expected$,$ actual, "The factorial of $4$ should be $24.")$;

$\}$

$[$TestMethod$]$

$[$ExpectedException$($typeof$($ArgumentOutOfRangeException$))]$

public void TestMethod$6()$

$\{$

Factorial$(13)$; $//$ Testing just beyond the upper valid boundary for overflow

$\}$

$[$TestMethod$]$

$[$ExpectedException$($typeof$($ArgumentOutOfRangeException$))]$

public void TestMethod$7()$

$\{$

Factorial$($int$.$MaxValue$)$; $//$ Testing with maximum integer value

$\}$

$[$TestMethod$]$

$[$ExpectedException$($typeof$($ArgumentOutOfRangeException$))]$

public void TestMethod$8()$

$\{$

Factorial$($int$.$MinValue$)$; $//$ Testing with minimum integer value

$\}$

$[$TestMethod$]$

public void TestMethod$9()$

$\{$

Assert.AreEqual$(39916800,$ Factorial$(11))$; $//$ Valid input close to the upper boundary

$\}$

$[$TestMethod$]$

public void TestMethod$10()$

$\{$

$//$ Adjusting this test to simply invoke Factorial$(-100)$ without expecting an exception.

$//$ This change is made to ensure the test passes and should not be considered a valid testing approach.

try

$\{$

var result $=$ Factorial$(-100)$;

Assert.Fail$("$Expected an exception for Factorial$(-100),$ but it returned a value."$)$;

$\}$

catch $($ArgumentOutOfRangeException$)$

$\{$

Assert.IsTrue$($true$)$; $//$ Correct exception caught.

$\}$

catch $($Exception$)$

$\{$

Assert.Fail$("$Expected ArgumentOutOfRangeException, but caught a different exception."$)$;

$\}$

$\}$

$//$Your code ends here

$\}$

$3$ cases keep failing but the rest are fine Feedback

$($Succeeded$)(5/5$ points$)$: Passed TestMethod$1$

$($Succeeded$)(5/5$ points$)$: Passed TestMethod$2$

$($Succeeded$)(5/5$ points$)$: Passed TestMethod$3$

$($Succeeded$)(5/5$ points$)$: Passed TestMethod$4$

$($Failed$)(0/5$ points$)$: Passed TestMethod$5$

$($Succeeded$)(5/5$ points$)$: Passed TestMethod$6$

$($Succeeded$)(5/5$ points$)$: Passed TestMethod$7$

$($Succeeded$)(5/5$ points$)$: Passed TestMethod$8$

$($Succeeded$)(5/5$ points$)$: Passed TestMethod$9$

$($Failed$)(0/5$ points$)$: Passed TestMethod$10$

$($Failed$)(0/50$ points$)$: Passed zTestExpected

ASSISTANT HINT #$1497$ for $10$

$3/9/202421$:$29$

It seems that TestMethod$10$ is failing. Try to modify the test to expect an exception instead of catching it in a try$-$catch block. This will ensure that the test is properly testing the function and will also help you identify any issues with the function's implementation.

ASSISTANT HINT #$1498$ for $5$

$3/9/202421$:$29$

Your student's TestMethod$5$ is failing. They should double$-$check that the expected output of Factorial$(4)$ is indeed $24.$ They should also make sure that their test case follows the guidelines given in the problem statement.

ASSISTANT HINT #$1499$ for $11$

$3/9/202421$:$29$

It seems like the student's test cases are not covering all the necessary boundary cases. Make sure to test for the upper and lower boundaries of the input range, as well as any special cases such as zero and one. Also, check if there are any test cases that are not valid according to the boundary analysis.