Platform

The Platform attribute is used to specify platforms for which a test or fixture should be run. Platforms are specified using case-insensitive string values and may be either included or excluded from the run by use of the Include or Exclude properties respectively. Platforms to be included may alternatively be specified as an argument to the PlatformAttribute constructor. In either case, multiple comma-separated values may be specified.

If a test or fixture with the Platform attribute does not satisfy the specified platform requirements it is skipped. The test does not affect the outcome of the run at all: it is not considered as ignored and is not even counted in the total number of tests. [Ed.: Check this.] In the gui, the tree node for the test remains gray and the status bar color is not affected.

Test Fixture Syntax

namespace NUnit.Tests
{
  using System;
  using NUnit.Framework;

  [TestFixture]
  [Platform("NET-2.0")]
  public class DotNetTwoTests
  {
    // ...
  }
}

Test Syntax

namespace NUnit.Tests
{
  using System;
  using NUnit.Framework;

  [TestFixture]
  public class SuccessTests
  {
    [Test]
    [Platform(Exclude="Win98,WinME")]
    public void SomeTest()
    { /* ... */ }
}

Platform Specifiers

The following values are recognized as platform specifiers. They may be expressed in upper, lower or mixed case.

Operating System

  • Win
  • Win32
  • Win32S
  • Win32Windows
  • Win32NT
  • WinCE
  • Win95
  • Win98
  • WinMe
  • NT3
  • NT4
  • NT5
  • NT6
  • Win2K
  • WinXP
  • Win2003Server
  • Vista
  • Win2008Server
  • Win2008ServerR2
  • Windows7
  • Win2012Server
  • Windows8
  • Windows8.1
  • Windows10
  • Windows11
  • WindowsServer10
  • Unix
  • Linux
  • MacOsX
  • XBox

A list of supported platform identifiers can also be obtained from the constant string PlatformHelper.OSPlatforms of the NUnit assembly you use. Note that this is for informational purposes only, because the PlatformHelper is considered an internal type and shall not be used in production.

Architecture

  • 32-Bit
  • 32-Bit-Process
  • 32-Bit-OS (.NET 4.0 and higher only)
  • 64-Bit
  • 64-Bit-Process
  • 64-Bit-OS (.NET 4.0 and higher only)

Runtime

  • Net
  • Net-1.0
  • Net-1.1
  • Net-2.0
  • Net-3.0 (1)
  • Net-3.5 (2)
  • Net-4.0
  • Net-4.5 (3)
  • NetCF
  • SSCLI
  • Rotor
  • Mono
  • Mono-1.0
  • Mono-2.0
  • Mono-3.0 (4)
  • Mono-3.5 (5)
  • Mono-4.0

Notes

  1. Includes Net-2.0
  2. Includes Net-2.0 and Net-3.0
  3. Includes Net-4.0
  4. Includes Mono-2.0
  5. Includes Mono-2.0 and Mono-3.0

[SupportedOSPlatformAttribute] and [UnsupportedOSPlatformAttribute] support

The [SupportedOSPlatform] and [UnsupportedOSPlatform] attributes are also supported, however they are only supported on a subset of dotnet versions compared to [Platform]. See the docs from Microsoft for more information about [SupportedOSPlatform] and [UnsupportedOSPlatform].