This C# .Net code is from the Code Recipes series of Test Automation TV YouTube Channel.
The full explanation of the code is available in the video.
public string GenerateRandomString(int stringLength = 10) { if(stringLength < 1) { stringLength = 10; } StringBuilder retVal = new StringBuilder(); Random rNumberSmallCapsOrSpecialChar = new Random(DateTime.Now.Millisecond); int typeOfCharToGenerate = 1; for (int i = 0; i < stringLength; i++) { typeOfCharToGenerate = rNumberSmallCapsOrSpecialChar.Next(1, 4); switch (typeOfCharToGenerate) { case 1:// generate a number retVal.Append(rNumberSmallCapsOrSpecialChar.Next(0, 9)); break; case 2: // generate a small alphabet retVal.Append((char)rNumberSmallCapsOrSpecialChar.Next(97, 122)); break; case 3: // generate a capital alphabet retVal.Append((char)rNumberSmallCapsOrSpecialChar.Next(65, 90)); break; case 4: // special char retVal.Append((char)rNumberSmallCapsOrSpecialChar.Next(33, 46)); break; } } return retVal.ToString(); }
[TestMethod] public void MakeRandomString() { for (int i = 0; i < 10; i++) { Console.WriteLine(GenerateRandomString()); System.Threading.Thread.Sleep(10); } }
This video also shows how to use Visual Studio 2019 test explorer to run tests.
Other topics included are
- typecasting of an int to a char in C#
- Using StringBuild.Append method
- Using Random class and Next method
- Specifying default parameter values in methods
- Using Sleep method call
