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dotnet test

       This article applies to: ✔️ .NET Core 3.1 SDK and later versions

NAME

       dotnet-test - .NET test driver used to execute unit tests.

SYNOPSIS

              dotnet test [<PROJECT> | <SOLUTION> | <DIRECTORY> | <DLL> | <EXE>]
                  [--test-adapter-path <ADAPTER_PATH>]
                  [-a|--arch <ARCHITECTURE>]
                  [--blame]
                  [--blame-crash]
                  [--blame-crash-dump-type <DUMP_TYPE>]
                  [--blame-crash-collect-always]
                  [--blame-hang]
                  [--blame-hang-dump-type <DUMP_TYPE>]
                  [--blame-hang-timeout <TIMESPAN>]
                  [-c|--configuration <CONFIGURATION>]
                  [--collect <DATA_COLLECTOR_NAME>]
                  [-d|--diag <LOG_FILE>]
                  [-f|--framework <FRAMEWORK>]
                  [-e|--environment <NAME="VALUE">]
                  [--filter <EXPRESSION>]
                  [--interactive]
                  [-l|--logger <LOGGER>]
                  [--no-build]
                  [--nologo]
                  [--no-restore]
                  [-o|--output <OUTPUT_DIRECTORY>]
                  [--os <OS>]
                  [--results-directory <RESULTS_DIR>]
                  [-r|--runtime <RUNTIME_IDENTIFIER>]
                  [-s|--settings <SETTINGS_FILE>]
                  [-t|--list-tests]
                  [-v|--verbosity <LEVEL>]
                  [<args>...]
                  [[--] <RunSettings arguments>]

              dotnet test -h|--help

DESCRIPTION

The dotnet test command is used to execute unit tests in a given solution. The dotnet test command
builds the solution and runs a test host application for each test project in the solution. The test
host executes tests in the given project using a test framework, for example: MSTest, NUnit, or xUnit,
and reports the success or failure of each test. If all tests are successful, the test runner returns 0
as an exit code; otherwise if any test fails, it returns 1.

For multi-targeted projects, tests are run for each targeted framework. The test host and the unit test
framework are packaged as NuGet packages and are restored as ordinary dependencies for the project.

Test projects specify the test runner using an ordinary <PackageReference> element, as seen in the
following sample project file:

[!code-xmlXUnit Basic Template]

Where Microsoft.NET.Test.Sdk is the test host, xunit is the test framework. And
xunit.runner.visualstudio is a test adapter, which allows the xUnit framework to work with the test host.

Implicit restore
You don’t have to run dotnet restore because it’s run implicitly by all commands that require a restore
to occur, such as dotnet new, dotnet build, dotnet run, dotnet test, dotnet publish, and dotnet pack. To
disable implicit restore, use the --no-restore option.

The dotnet restore command is still useful in certain scenarios where explicitly restoring makes sense,
such as continuous integration builds in Azure DevOps Services or in build systems that need to
explicitly control when the restore occurs.

For information about how to manage NuGet feeds, see the dotnet restore documentation.

Workload manifest downloads
When you run this command, it initiates an asynchronous background download of advertising manifests for
workloads. If the download is still running when this command finishes, the download is stopped. For
more information, see Advertising manifests.

ARGUMENTS

       • PROJECT | SOLUTION | DIRECTORY | DLL | EXE

         • Path to the test project.

         • Path to the solution.

         • Path to a directory that contains a project or a solution.

         • Path to a test project .dll file.

         • Path to a test project .exe file.

         If not specified, the effect is the same as  using  the  DIRECTORY  argument  to  specify  the  current
         directory.

OPTIONS

[!WARNING] Breaking changes in options:

• Starting in .NET 7: switch -a to alias --arch instead of --test-adapter-path

• Starting in .NET 7: switch -r to alias --runtime instead of --results-directory

• --test-adapter-path <ADAPTER_PATH>

Path to a directory to be searched for additional test adapters. Only .dll files with suffix
.TestAdapter.dll are inspected. If not specified, the directory of the test .dll is searched.

Short form -a available in .NET SDK versions earlier than 7.

• --arch <ARCHITECTURE>

Specifies the target architecture. This is a shorthand syntax for setting the Runtime Identifier
(RID), where the provided value is combined with the default RID. For example, on a win-x64 machine,
specifying --arch x86 sets the RID to win-x86. If you use this option, don’t use the -r|--runtime
option. Available since .NET 6 Preview 7.

• --blame

Runs the tests in blame mode. This option is helpful in isolating problematic tests that cause the
test host to crash. When a crash is detected, it creates a sequence file in
TestResults/<Guid>/<Guid>_Sequence.xml that captures the order of tests that were run before the crash.

This option does not create a memory dump and is not helpful when the test is hanging.

• --blame-crash (Available since .NET 5.0 SDK)

Runs the tests in blame mode and collects a crash dump when the test host exits unexpectedly. This
option depends on the version of .NET used, the type of error, and the operating system.

For exceptions in managed code, a dump will be automatically collected on .NET 5.0 and later versions.
It will generate a dump for testhost or any child process that also ran on .NET 5.0 and crashed.
Crashes in native code will not generate a dump. This option works on Windows, macOS, and Linux.

Crash dumps in native code, or when using .NET Core 3.1 or earlier versions, can only be collected on
Windows, by using Procdump. A directory that contains procdump.exe and procdump64.exe must be in the
PATH or PROCDUMP_PATH environment variable. Download the tools. Implies --blame.

To collect a crash dump from a native application running on .NET 5.0 or later, the usage of Procdump
can be forced by setting the VSTEST_DUMP_FORCEPROCDUMP environment variable to 1.

• --blame-crash-dump-type <DUMP_TYPE> (Available since .NET 5.0 SDK)

The type of crash dump to be collected. Supported dump types are full (default), and mini. Implies
--blame-crash.

• --blame-crash-collect-always (Available since .NET 5.0 SDK)

Collects a crash dump on expected as well as unexpected test host exit.

• --blame-hang (Available since .NET 5.0 SDK)

Run the tests in blame mode and collects a hang dump when a test exceeds the given timeout.

• --blame-hang-dump-type <DUMP_TYPE> (Available since .NET 5.0 SDK)

The type of crash dump to be collected. It should be full, mini, or none. When none is specified,
test host is terminated on timeout, but no dump is collected. Implies --blame-hang.

• --blame-hang-timeout <TIMESPAN> (Available since .NET 5.0 SDK)

Per-test timeout, after which a hang dump is triggered and the test host process and all of its child
processes are dumped and terminated. The timeout value is specified in one of the following formats:

• 1.5h, 1.5hour, 1.5hours

• 90m, 90min, 90minute, 90minutes

• 5400s, 5400sec, 5400second, 5400seconds

• 5400000ms, 5400000mil, 5400000millisecond, 5400000milliseconds

When no unit is used (for example, 5400000), the value is assumed to be in milliseconds. When used
together with data driven tests, the timeout behavior depends on the test adapter used. For xUnit,
NUnit. and MSTest 2.2.4+, the timeout is renewed after every test case. For MSTest before version
2.2.4, the timeout is used for all test cases. This option is supported on Windows with netcoreapp2.1
and later, on Linux with netcoreapp3.1 and later, and on macOS with net5.0 or later. Implies --blame
and --blame-hang.

• -c|--configuration <CONFIGURATION>

Defines the build configuration. The default for most projects is Debug, but you can override the
build configuration settings in your project.

• --collect <DATA_COLLECTOR_NAME>

Enables data collector for the test run. For more information, see Monitor and analyze test run
(https://aka.ms/vstest-collect).

For example you can collect code coverage by using the --collect "Code Coverage" option. For more
information, see Use code coverage, Customize code coverage analysis, and GitHub issue
dotnet/docs#34479 (https://github.com/dotnet/docs/issues/34479).

To collect code coverage you can also use Coverlet (https://github.com/coverlet-
coverage/coverlet/blob/master/README.md) by using the --collect "XPlat Code Coverage" option.

• -d|--diag <LOG_FILE>

Enables diagnostic mode for the test platform and writes diagnostic messages to the specified file and
to files next to it. The process that is logging the messages determines which files are created, such
as *.host_<date>.txt for test host log, and *.datacollector_<date>.txt for data collector log.

• -e|--environment <NAME="VALUE">

Sets the value of an environment variable. Creates the variable if it does not exist, overrides if it
does exist. Use of this option will force the tests to be run in an isolated process. The option can
be specified multiple times to provide multiple variables.

• -f|--framework <FRAMEWORK>

The target framework moniker (TFM) of the target framework to run tests for. The target framework must
also be specified in the project file.

• --filter <EXPRESSION>

Filters tests in the current project using the given expression. Only tests that match the filter
expression are run. For more information, see the Filter option details section. For more information
and examples on how to use selective unit test filtering, see Running selective unit tests.

• -?|-h|--help

Prints out a description of how to use the command.

• --interactive

Allows the command to stop and wait for user input or action. For example, to complete authentication.
Available since .NET Core 3.0 SDK.

• -l|--logger <LOGGER>

Specifies a logger for test results and optionally switches for the logger. Specify this parameter
multiple times to enable multiple loggers. For more information, see Reporting test results
(https://github.com/microsoft/vstest/blob/main/docs/report.md#available-test-loggers), Switches for
loggers, and the examples later in this article.

In order to pass command-line switches to the logger:

• Use the full name of the switch, not the abbreviated form (for example, verbosity instead of v).

• Omit any leading dashes.

• Replace the space separating each switch with a semicolon ;.

• If the switch has a value, replace the colon separator between that switch and its value with the
equals sign =.

For example, -v:detailed --consoleLoggerParameters:ErrorsOnly would become
verbosity=detailed;consoleLoggerParameters=ErrorsOnly.

• --no-build

Doesn’t build the test project before running it. It also implicitly sets the --no-restore flag.

• --nologo

Run tests without displaying the Microsoft TestPlatform banner. Available since .NET Core 3.0 SDK.

• --no-restore

Doesn’t execute an implicit restore when running the command.

• -o|--output <OUTPUT_DIRECTORY>

Directory in which to find the binaries to run. If not specified, the default path is
./bin/<configuration>/<framework>/. For projects with multiple target frameworks (via the
TargetFrameworks property), you also need to define --framework when you specify this option. dotnet
test always runs tests from the output directory. You can use
<xref:System.AppDomain.BaseDirectory%2A?displayProperty=nameWithType> to consume test assets in the
output directory.

• .NET 7.0.200 SDK and later

If you specify the --output option when running this command on a solution, the CLI will emit a
warning (an error in 7.0.200) due to the unclear semantics of the output path. The --output option
is disallowed because all outputs of all built projects would be copied into the specified directory,
which isn’t compatible with multi-targeted projects, as well as projects that have different versions
of direct and transitive dependencies. For more information, see Solution-level --output option no
longer valid for build-related commands.

• --os <OS>

Specifies the target operating system (OS). This is a shorthand syntax for setting the Runtime
Identifier (RID), where the provided value is combined with the default RID. For example, on a win-x64
machine, specifying --os linux sets the RID to linux-x64. If you use this option, don’t use the
-r|--runtime option. Available since .NET 6.

• --results-directory <RESULTS_DIR>

The directory where the test results are going to be placed. If the specified directory doesn’t exist,
it’s created. The default is TestResults in the directory that contains the project file.

Short form -r available in .NET SDK versions earlier than 7.

• -r|--runtime <RUNTIME_IDENTIFIER>

The target runtime to test for.

Short form -r available starting in .NET SDK 7.

• -s|--settings <SETTINGS_FILE>

The .runsettings file to use for running the tests. The TargetPlatform element (x86|x64) has no effect
for dotnet test. To run tests that target x86, install the x86 version of .NET Core. The bitness of
the dotnet.exe that is on the path is what will be used for running tests. For more information, see
the following resources:

• Configure unit tests by using a .runsettings file.

• Configure a test run (https://github.com/Microsoft/vstest-docs/blob/main/docs/configure.md)

• -t|--list-tests

List the discovered tests instead of running the tests.

• -v|--verbosity <LEVEL>

Sets the verbosity level of the command. Allowed values are q[uiet], m[inimal], n[ormal], d[etailed],
and diag[nostic]. The default is minimal. For more information, see
<xref:Microsoft.Build.Framework.LoggerVerbosity>.

• args

Specifies extra arguments to pass to the adapter. Use a space to separate multiple arguments.

The list of possible arguments depends upon the specified behavior:

• When you specify a project, solution, or a directory, or if you omit this argument, the call is
forwarded to msbuild. In that case, the available arguments can be found in the dotnet msbuild
documentation.

• When you specify a .dll or an .exe, the call is forwarded to vstest. In that case, the available
arguments can be found in the dotnet vstest documentation.

• RunSettings arguments

Inline RunSettings are passed as the last arguments on the command line after “–” (note the space after
–). Inline RunSettings are specified as [name]=[value] pairs. A space is used to separate multiple
[name]=[value] pairs.

Example: dotnet test -- MSTest.DeploymentEnabled=false MSTest.MapInconclusiveToFailed=True

For more information, see Passing RunSettings arguments through command line
(https://github.com/Microsoft/vstest-docs/blob/main/docs/RunSettingsArguments.md).

EXAMPLES

       • Run the tests in the project in the current directory:

                dotnet test

       • Run the tests in the test1 project:

                dotnet test ~/projects/test1/test1.csproj

       • Run the tests using test1.dll assembly:

                dotnet test ~/projects/test1/bin/debug/test1.dll

       • Run the tests in the project in the current directory, and generate a test  results  file  in  the  trx
         format:

                dotnet test --logger trx

       • Run  the  tests  in  the  project  in  the  current directory, and generate a code coverage file (after
         installing                            Coverlet                            (https://github.com/coverlet-
         coverage/coverlet/blob/master/Documentation/VSTestIntegration.md) collectors integration):

                dotnet test --collect:"XPlat Code Coverage"

       • Run  the  tests  in  the  project  in the current directory, and generate a code coverage file (Windows
         only):

                dotnet test --collect "Code Coverage"

       • Run the tests in the project in the current directory, and log with detailed verbosity to the console:

                dotnet test --logger "console;verbosity=detailed"

       • Run the tests in the project in the current directory, and log with the trx logger  to  testResults.trx
         in the TestResults folder:

                dotnet test --logger "trx;logfilename=testResults.trx"

         Since  the log file name is specified, the same name is used for each target framework in the case of a
         multi-targeted project.  The output for each target  framework  overwrites  the  output  for  preceding
         target  frameworks.   The file is created in the TestResults folder in the test project folder, because
         relative paths are relative to that folder.  The following example shows how to produce a separate file
         for each target framework.

       • Run  the  tests  in  the  project in the current directory, and log with the trx logger to files in the
         TestResults folder, with file names that are unique for each target framework:

                dotnet test --logger:"trx;LogFilePrefix=testResults"

       • Run the tests in the project in the current directory, and log with the html logger to testResults.html
         in the TestResults folder:

                dotnet test --logger "html;logfilename=testResults.html"

       • Run  the tests in the project in the current directory, and report tests that were in progress when the
         test host crashed:

                dotnet test --blame

       • Run the tests in the test1 project, providing the -bl (binary log) argument to msbuild:

                dotnet test ~/projects/test1/test1.csproj -bl

       • Run the tests in the test1 project, setting the MSBuild DefineConstants property to DEV:

                dotnet test ~/projects/test1/test1.csproj -p:DefineConstants="DEV"

   Filter option details
       --filter <EXPRESSION>

       <Expression> has the format <property><operator><value>[|&<Expression>].

       <property> is an attribute of the Test Case.  The following are the properties supported by popular  unit
       test frameworks:

       Test Framework   Supported properties
       ──────────────────────────────────────
       MSTest
       xUnit
       NUnit

       The <operator> describes the relationship between the property and the value:

       Operator   Function
       ───────────────────────────
          =       Exact match
          !=      Not exact match
          ~       Contains
          !~      Not contains

       <value> is a string.  All the lookups are case insensitive.

       An  expression  without  an  <operator>  is  automatically considered as a contains on FullyQualifiedName
       property (for example, dotnet test --filter xyz is same as dotnet test --filter FullyQualifiedName~xyz).

       Expressions can be joined with conditional operators:

       Operator   Function
       ────────────────────
       |          OR
       &          AND

       You  can  enclose  expressions  in  parenthesis  when   using   conditional   operators   (for   example,
       (Name~TestMethod1) | (Name~TestMethod2)).

       For more information and examples on how to use selective unit test filtering, see Running selective unit
       tests.