RandomizedTesting.Generators
2.7.8
dotnet add package RandomizedTesting.Generators --version 2.7.8
NuGet\Install-Package RandomizedTesting.Generators -Version 2.7.8
<PackageReference Include="RandomizedTesting.Generators" Version="2.7.8" />
paket add RandomizedTesting.Generators --version 2.7.8
#r "nuget: RandomizedTesting.Generators, 2.7.8"
// Install RandomizedTesting.Generators as a Cake Addin #addin nuget:?package=RandomizedTesting.Generators&version=2.7.8 // Install RandomizedTesting.Generators as a Cake Tool #tool nuget:?package=RandomizedTesting.Generators&version=2.7.8
Randomized Testing
This is a C# port of the only the generators from the Java randomizedtesting library.
In addition to the random generators, the RandomExtensions
class contains several useful low-level extension methods for generating numbers, text (html-like, regex-like, unicode, realistic unicode, plain ASCII), random picks from collections, or random regular expression instances.
Why would you want tests to have random data? This is to fill situations where it is not practical to test the entire range of values in a single test run, for example, with applications that analyze text. Tests can instead be designed to provide different input every time they run to catch edge cases that are difficult to test for. Generating random data also has many other purposes, such as quickly generating a set of text files to benchmark with without having to store several hundred MB worth of files (since the same random seed will always generate the same data).
Random Generator Examples
// Create a System.Random instance
Random random = new Random();
// Create a random bool
bool boolValue = random.NextBoolean();
// Create a random long
long longValue = random.NextInt64();
// Create a random long between 10 (inclusive) and 100 (inclusive)
long longRangeValue = random.NextInt64(minValue: 10, maxValue: 100);
// Create a random float
float floatValue = random.NextSingle();
// Create a random BigInteger (from System.Numerics)
BigInteger bigIntValue = random.NextBigInteger();
// Pick a random KeyValuePair from a generic dictionary
var dictionary = new Dictionary<string, string>
{
["one"] = "oneValue",
["two"] = "twoValue",
["three"] = "threeValue",
["four"] = "fourValue",
["five"] = "fiveValue",
};
KeyValuePair<string, string> kvp = random.NextFrom(dictionary);
// Pick a random element from an array
var array = new int[] { 1, 4, 7, 10, 14, 74, 136 };
var arrayElement = random.RandomFrom(array);
// Create a random string (plain ASCII)
string asciiValue = random.NextSimpleString(maxLength: 15);
// Create a random string with specific chars
string specValue = random.NextSimpleStringRange(minChar: 'A', maxChar: 'F', maxLength: 10);
// Create a random Unicode string (may contain surrogate pairs)
string unicodeValue = random.NextUnicodeString(maxLength: 20);
// Create a random realistic Unicode string (random characters picked from the same Unicode block)
string realUnicodeValue = random.NextRealisticUnicodeString(maxLength: 30);
// Fill part of a char[] with random Unicode characters
char[] chars = "The quick brown fox jumped over the lazy dog.".ToCharArray();
random.NextFixedLengthUnicodeString(chars, startIndex: 8, length: 20);
// Generate a random regex-like string
string regexLike = random.NextRegexishString(maxLength: 20);
// Generate a random HTML-like string
string htmlLike = random.NextHtmlishString(numElements: 144);
// Randomly recase a string
string toRecase = "This Is A Pascal Cased String";
string recased = random.NextStringRecasing(toRecase);
// Generate a random Regex that compiles
Regex pattern = random.NextRegex();
Building and Testing
To build the project from source, see the Building and Testing documentation.
Saying Thanks
If you find this library to be useful, please star us on GitHub and consider a financial sponsorship so we can continue bringing you great free tools like this one.
Product | Versions Compatible and additional computed target framework versions. |
---|---|
.NET | net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. |
.NET Core | netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed. |
.NET Standard | netstandard2.0 is compatible. netstandard2.1 was computed. |
.NET Framework | net45 is compatible. net451 was computed. net452 was computed. net46 was computed. net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed. |
MonoAndroid | monoandroid was computed. |
MonoMac | monomac was computed. |
MonoTouch | monotouch was computed. |
Tizen | tizen40 was computed. tizen60 was computed. |
Xamarin.iOS | xamarinios was computed. |
Xamarin.Mac | xamarinmac was computed. |
Xamarin.TVOS | xamarintvos was computed. |
Xamarin.WatchOS | xamarinwatchos was computed. |
NuGet packages (2)
Showing the top 2 NuGet packages that depend on RandomizedTesting.Generators:
Package | Downloads |
---|---|
Lucene.Net.TestFramework
Framework for testing Lucene.NET-based applications using NUnit. Documentation: https://lucenenet.apache.org/docs/4.8.0-beta00016/api/test-framework/overview.html This package is part of the Lucene.NET project: https://www.nuget.org/packages/Lucene.Net/4.8.0-beta00016 |
|
RandomizedTesting
This is a package dependency that is not meant to be referenced directly. Please use https://www.nuget.org/packages/RandomizedTesting.Generators instead. |
GitHub repositories (1)
Showing the top 1 popular GitHub repositories that depend on RandomizedTesting.Generators:
Repository | Stars |
---|---|
apache/lucenenet
Apache Lucene.NET
|
Version | Downloads | Last updated |
---|---|---|
2.7.8 | 75,956 | 1/15/2022 |
2.7.8-beta-0002 | 11,566 | 10/24/2021 |
2.7.8-beta-0001 | 10,466 | 4/20/2021 |