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diff --git a/src/tools/cargo/src/etc/man/cargo-test.1 b/src/tools/cargo/src/etc/man/cargo-test.1 new file mode 100644 index 000000000..85260b067 --- /dev/null +++ b/src/tools/cargo/src/etc/man/cargo-test.1 @@ -0,0 +1,581 @@ +'\" t +.TH "CARGO\-TEST" "1" +.nh +.ad l +.ss \n[.ss] 0 +.SH "NAME" +cargo\-test \[em] Execute unit and integration tests of a package +.SH "SYNOPSIS" +\fBcargo test\fR [\fIoptions\fR] [\fItestname\fR] [\fB\-\-\fR \fItest\-options\fR] +.SH "DESCRIPTION" +Compile and execute unit, integration, and documentation tests. +.sp +The test filtering argument \fBTESTNAME\fR and all the arguments following the two +dashes (\fB\-\-\fR) are passed to the test binaries and thus to \fIlibtest\fR (rustc\[cq]s +built in unit\-test and micro\-benchmarking framework). If you\[cq]re passing +arguments to both Cargo and the binary, the ones after \fB\-\-\fR go to the binary, +the ones before go to Cargo. For details about libtest\[cq]s arguments see the +output of \fBcargo test \-\- \-\-help\fR and check out the rustc book\[cq]s chapter on +how tests work at <https://doc.rust\-lang.org/rustc/tests/index.html>\&. +.sp +As an example, this will filter for tests with \fBfoo\fR in their name and run them +on 3 threads in parallel: +.sp +.RS 4 +.nf +cargo test foo \-\- \-\-test\-threads 3 +.fi +.RE +.sp +Tests are built with the \fB\-\-test\fR option to \fBrustc\fR which creates a special +executable by linking your code with libtest. The executable automatically +runs all functions annotated with the \fB#[test]\fR attribute in multiple threads. +\fB#[bench]\fR annotated functions will also be run with one iteration to verify +that they are functional. +.sp +If the package contains multiple test targets, each target compiles to a +special executable as aforementioned, and then is run serially. +.sp +The libtest harness may be disabled by setting \fBharness = false\fR in the target +manifest settings, in which case your code will need to provide its own \fBmain\fR +function to handle running tests. +.SS "Documentation tests" +Documentation tests are also run by default, which is handled by \fBrustdoc\fR\&. It +extracts code samples from documentation comments of the library target, and +then executes them. +.sp +Different from normal test targets, each code block compiles to a doctest +executable on the fly with \fBrustc\fR\&. These executables run in parallel in +separate processes. The compilation of a code block is in fact a part of test +function controlled by libtest, so some options such as \fB\-\-jobs\fR might not +take effect. Note that this execution model of doctests is not guaranteed +and may change in the future; beware of depending on it. +.sp +See the \fIrustdoc book\fR <https://doc.rust\-lang.org/rustdoc/> for more information +on writing doc tests. +.SS "Working directory of tests" +The working directory of every test is set to the root directory of the package +the test belongs to. +Setting the working directory of tests to the package\[cq]s root directory makes it +possible for tests to reliably access the package\[cq]s files using relative paths, +regardless from where \fBcargo test\fR was executed from. +.SH "OPTIONS" +.SS "Test Options" +.sp +\fB\-\-no\-run\fR +.RS 4 +Compile, but don\[cq]t run tests. +.RE +.sp +\fB\-\-no\-fail\-fast\fR +.RS 4 +Run all tests regardless of failure. Without this flag, Cargo will exit +after the first executable fails. The Rust test harness will run all tests +within the executable to completion, this flag only applies to the executable +as a whole. +.RE +.SS "Package Selection" +By default, when no package selection options are given, the packages selected +depend on the selected manifest file (based on the current working directory if +\fB\-\-manifest\-path\fR is not given). If the manifest is the root of a workspace then +the workspaces default members are selected, otherwise only the package defined +by the manifest will be selected. +.sp +The default members of a workspace can be set explicitly with the +\fBworkspace.default\-members\fR key in the root manifest. If this is not set, a +virtual workspace will include all workspace members (equivalent to passing +\fB\-\-workspace\fR), and a non\-virtual workspace will include only the root crate itself. +.sp +\fB\-p\fR \fIspec\fR\[u2026], +\fB\-\-package\fR \fIspec\fR\[u2026] +.RS 4 +Test only the specified packages. See \fBcargo\-pkgid\fR(1) for the +SPEC format. This flag may be specified multiple times and supports common Unix +glob patterns like \fB*\fR, \fB?\fR and \fB[]\fR\&. However, to avoid your shell accidentally +expanding glob patterns before Cargo handles them, you must use single quotes or +double quotes around each pattern. +.RE +.sp +\fB\-\-workspace\fR +.RS 4 +Test all members in the workspace. +.RE +.sp +\fB\-\-all\fR +.RS 4 +Deprecated alias for \fB\-\-workspace\fR\&. +.RE +.sp +\fB\-\-exclude\fR \fISPEC\fR\[u2026] +.RS 4 +Exclude the specified packages. Must be used in conjunction with the +\fB\-\-workspace\fR flag. This flag may be specified multiple times and supports +common Unix glob patterns like \fB*\fR, \fB?\fR and \fB[]\fR\&. However, to avoid your shell +accidentally expanding glob patterns before Cargo handles them, you must use +single quotes or double quotes around each pattern. +.RE +.SS "Target Selection" +When no target selection options are given, \fBcargo test\fR will build the +following targets of the selected packages: +.sp +.RS 4 +\h'-04'\(bu\h'+02'lib \[em] used to link with binaries, examples, integration tests, and doc tests +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'bins (only if integration tests are built and required features are +available) +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'examples \[em] to ensure they compile +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'lib as a unit test +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'bins as unit tests +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'integration tests +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'doc tests for the lib target +.RE +.sp +The default behavior can be changed by setting the \fBtest\fR flag for the target +in the manifest settings. Setting examples to \fBtest = true\fR will build and run +the example as a test. Setting targets to \fBtest = false\fR will stop them from +being tested by default. Target selection options that take a target by name +ignore the \fBtest\fR flag and will always test the given target. +.sp +Doc tests for libraries may be disabled by setting \fBdoctest = false\fR for the +library in the manifest. +.sp +Binary targets are automatically built if there is an integration test or +benchmark being selected to test. This allows an integration +test to execute the binary to exercise and test its behavior. +The \fBCARGO_BIN_EXE_<name>\fR +\fIenvironment variable\fR <https://doc.rust\-lang.org/cargo/reference/environment\-variables.html#environment\-variables\-cargo\-sets\-for\-crates> +is set when the integration test is built so that it can use the +\fI\f(BIenv\fI macro\fR <https://doc.rust\-lang.org/std/macro.env.html> to locate the +executable. +.sp +Passing target selection flags will test only the specified +targets. +.sp +Note that \fB\-\-bin\fR, \fB\-\-example\fR, \fB\-\-test\fR and \fB\-\-bench\fR flags also +support common Unix glob patterns like \fB*\fR, \fB?\fR and \fB[]\fR\&. However, to avoid your +shell accidentally expanding glob patterns before Cargo handles them, you must +use single quotes or double quotes around each glob pattern. +.sp +\fB\-\-lib\fR +.RS 4 +Test the package\[cq]s library. +.RE +.sp +\fB\-\-bin\fR \fIname\fR\[u2026] +.RS 4 +Test the specified binary. This flag may be specified multiple times +and supports common Unix glob patterns. +.RE +.sp +\fB\-\-bins\fR +.RS 4 +Test all binary targets. +.RE +.sp +\fB\-\-example\fR \fIname\fR\[u2026] +.RS 4 +Test the specified example. This flag may be specified multiple times +and supports common Unix glob patterns. +.RE +.sp +\fB\-\-examples\fR +.RS 4 +Test all example targets. +.RE +.sp +\fB\-\-test\fR \fIname\fR\[u2026] +.RS 4 +Test the specified integration test. This flag may be specified +multiple times and supports common Unix glob patterns. +.RE +.sp +\fB\-\-tests\fR +.RS 4 +Test all targets in test mode that have the \fBtest = true\fR manifest +flag set. By default this includes the library and binaries built as +unittests, and integration tests. Be aware that this will also build any +required dependencies, so the lib target may be built twice (once as a +unittest, and once as a dependency for binaries, integration tests, etc.). +Targets may be enabled or disabled by setting the \fBtest\fR flag in the +manifest settings for the target. +.RE +.sp +\fB\-\-bench\fR \fIname\fR\[u2026] +.RS 4 +Test the specified benchmark. This flag may be specified multiple +times and supports common Unix glob patterns. +.RE +.sp +\fB\-\-benches\fR +.RS 4 +Test all targets in benchmark mode that have the \fBbench = true\fR +manifest flag set. By default this includes the library and binaries built +as benchmarks, and bench targets. Be aware that this will also build any +required dependencies, so the lib target may be built twice (once as a +benchmark, and once as a dependency for binaries, benchmarks, etc.). +Targets may be enabled or disabled by setting the \fBbench\fR flag in the +manifest settings for the target. +.RE +.sp +\fB\-\-all\-targets\fR +.RS 4 +Test all targets. This is equivalent to specifying \fB\-\-lib \-\-bins \-\-tests \-\-benches \-\-examples\fR\&. +.RE +.sp +\fB\-\-doc\fR +.RS 4 +Test only the library\[cq]s documentation. This cannot be mixed with other +target options. +.RE +.SS "Feature Selection" +The feature flags allow you to control which features are enabled. When no +feature options are given, the \fBdefault\fR feature is activated for every +selected package. +.sp +See \fIthe features documentation\fR <https://doc.rust\-lang.org/cargo/reference/features.html#command\-line\-feature\-options> +for more details. +.sp +\fB\-F\fR \fIfeatures\fR, +\fB\-\-features\fR \fIfeatures\fR +.RS 4 +Space or comma separated list of features to activate. Features of workspace +members may be enabled with \fBpackage\-name/feature\-name\fR syntax. This flag may +be specified multiple times, which enables all specified features. +.RE +.sp +\fB\-\-all\-features\fR +.RS 4 +Activate all available features of all selected packages. +.RE +.sp +\fB\-\-no\-default\-features\fR +.RS 4 +Do not activate the \fBdefault\fR feature of the selected packages. +.RE +.SS "Compilation Options" +.sp +\fB\-\-target\fR \fItriple\fR +.RS 4 +Test for the given architecture. The default is the host architecture. The general format of the triple is +\fB<arch><sub>\-<vendor>\-<sys>\-<abi>\fR\&. Run \fBrustc \-\-print target\-list\fR for a +list of supported targets. This flag may be specified multiple times. +.sp +This may also be specified with the \fBbuild.target\fR +\fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&. +.sp +Note that specifying this flag makes Cargo run in a different mode where the +target artifacts are placed in a separate directory. See the +\fIbuild cache\fR <https://doc.rust\-lang.org/cargo/guide/build\-cache.html> documentation for more details. +.RE +.sp +\fB\-r\fR, +\fB\-\-release\fR +.RS 4 +Test optimized artifacts with the \fBrelease\fR profile. +See also the \fB\-\-profile\fR option for choosing a specific profile by name. +.RE +.sp +\fB\-\-profile\fR \fIname\fR +.RS 4 +Test with the given profile. +See the \fIthe reference\fR <https://doc.rust\-lang.org/cargo/reference/profiles.html> for more details on profiles. +.RE +.sp +\fB\-\-ignore\-rust\-version\fR +.RS 4 +Test the target even if the selected Rust compiler is older than the +required Rust version as configured in the project\[cq]s \fBrust\-version\fR field. +.RE +.sp +\fB\-\-timings=\fR\fIfmts\fR +.RS 4 +Output information how long each compilation takes, and track concurrency +information over time. Accepts an optional comma\-separated list of output +formats; \fB\-\-timings\fR without an argument will default to \fB\-\-timings=html\fR\&. +Specifying an output format (rather than the default) is unstable and requires +\fB\-Zunstable\-options\fR\&. Valid output formats: +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBhtml\fR (unstable, requires \fB\-Zunstable\-options\fR): Write a human\-readable file \fBcargo\-timing.html\fR to the +\fBtarget/cargo\-timings\fR directory with a report of the compilation. Also write +a report to the same directory with a timestamp in the filename if you want +to look at older runs. HTML output is suitable for human consumption only, +and does not provide machine\-readable timing data. +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBjson\fR (unstable, requires \fB\-Zunstable\-options\fR): Emit machine\-readable JSON +information about timing information. +.RE +.RE +.SS "Output Options" +.sp +\fB\-\-target\-dir\fR \fIdirectory\fR +.RS 4 +Directory for all generated artifacts and intermediate files. May also be +specified with the \fBCARGO_TARGET_DIR\fR environment variable, or the +\fBbuild.target\-dir\fR \fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&. +Defaults to \fBtarget\fR in the root of the workspace. +.RE +.SS "Display Options" +By default the Rust test harness hides output from test execution to keep +results readable. Test output can be recovered (e.g., for debugging) by passing +\fB\-\-nocapture\fR to the test binaries: +.sp +.RS 4 +.nf +cargo test \-\- \-\-nocapture +.fi +.RE +.sp +\fB\-v\fR, +\fB\-\-verbose\fR +.RS 4 +Use verbose output. May be specified twice for \[lq]very verbose\[rq] output which +includes extra output such as dependency warnings and build script output. +May also be specified with the \fBterm.verbose\fR +\fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&. +.RE +.sp +\fB\-q\fR, +\fB\-\-quiet\fR +.RS 4 +Do not print cargo log messages. +May also be specified with the \fBterm.quiet\fR +\fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&. +.RE +.sp +\fB\-\-color\fR \fIwhen\fR +.RS 4 +Control when colored output is used. Valid values: +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBauto\fR (default): Automatically detect if color support is available on the +terminal. +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBalways\fR: Always display colors. +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBnever\fR: Never display colors. +.RE +.sp +May also be specified with the \fBterm.color\fR +\fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&. +.RE +.sp +\fB\-\-message\-format\fR \fIfmt\fR +.RS 4 +The output format for diagnostic messages. Can be specified multiple times +and consists of comma\-separated values. Valid values: +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBhuman\fR (default): Display in a human\-readable text format. Conflicts with +\fBshort\fR and \fBjson\fR\&. +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBshort\fR: Emit shorter, human\-readable text messages. Conflicts with \fBhuman\fR +and \fBjson\fR\&. +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBjson\fR: Emit JSON messages to stdout. See +\fIthe reference\fR <https://doc.rust\-lang.org/cargo/reference/external\-tools.html#json\-messages> +for more details. Conflicts with \fBhuman\fR and \fBshort\fR\&. +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBjson\-diagnostic\-short\fR: Ensure the \fBrendered\fR field of JSON messages contains +the \[lq]short\[rq] rendering from rustc. Cannot be used with \fBhuman\fR or \fBshort\fR\&. +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBjson\-diagnostic\-rendered\-ansi\fR: Ensure the \fBrendered\fR field of JSON messages +contains embedded ANSI color codes for respecting rustc\[cq]s default color +scheme. Cannot be used with \fBhuman\fR or \fBshort\fR\&. +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fBjson\-render\-diagnostics\fR: Instruct Cargo to not include rustc diagnostics +in JSON messages printed, but instead Cargo itself should render the +JSON diagnostics coming from rustc. Cargo\[cq]s own JSON diagnostics and others +coming from rustc are still emitted. Cannot be used with \fBhuman\fR or \fBshort\fR\&. +.RE +.RE +.SS "Manifest Options" +.sp +\fB\-\-manifest\-path\fR \fIpath\fR +.RS 4 +Path to the \fBCargo.toml\fR file. By default, Cargo searches for the +\fBCargo.toml\fR file in the current directory or any parent directory. +.RE +.sp +\fB\-\-frozen\fR, +\fB\-\-locked\fR +.RS 4 +Either of these flags requires that the \fBCargo.lock\fR file is +up\-to\-date. If the lock file is missing, or it needs to be updated, Cargo will +exit with an error. The \fB\-\-frozen\fR flag also prevents Cargo from +attempting to access the network to determine if it is out\-of\-date. +.sp +These may be used in environments where you want to assert that the +\fBCargo.lock\fR file is up\-to\-date (such as a CI build) or want to avoid network +access. +.RE +.sp +\fB\-\-offline\fR +.RS 4 +Prevents Cargo from accessing the network for any reason. Without this +flag, Cargo will stop with an error if it needs to access the network and +the network is not available. With this flag, Cargo will attempt to +proceed without the network if possible. +.sp +Beware that this may result in different dependency resolution than online +mode. Cargo will restrict itself to crates that are downloaded locally, even +if there might be a newer version as indicated in the local copy of the index. +See the \fBcargo\-fetch\fR(1) command to download dependencies before going +offline. +.sp +May also be specified with the \fBnet.offline\fR \fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&. +.RE +.SS "Common Options" +.sp +\fB+\fR\fItoolchain\fR +.RS 4 +If Cargo has been installed with rustup, and the first argument to \fBcargo\fR +begins with \fB+\fR, it will be interpreted as a rustup toolchain name (such +as \fB+stable\fR or \fB+nightly\fR). +See the \fIrustup documentation\fR <https://rust\-lang.github.io/rustup/overrides.html> +for more information about how toolchain overrides work. +.RE +.sp +\fB\-\-config\fR \fIKEY=VALUE\fR or \fIPATH\fR +.RS 4 +Overrides a Cargo configuration value. The argument should be in TOML syntax of \fBKEY=VALUE\fR, +or provided as a path to an extra configuration file. This flag may be specified multiple times. +See the \fIcommand\-line overrides section\fR <https://doc.rust\-lang.org/cargo/reference/config.html#command\-line\-overrides> for more information. +.RE +.sp +\fB\-C\fR \fIPATH\fR +.RS 4 +Changes the current working directory before executing any specified operations. This affects +things like where cargo looks by default for the project manifest (\fBCargo.toml\fR), as well as +the directories searched for discovering \fB\&.cargo/config.toml\fR, for example. This option must +appear before the command name, for example \fBcargo \-C path/to/my\-project build\fR\&. +.sp +This option is only available on the \fInightly +channel\fR <https://doc.rust\-lang.org/book/appendix\-07\-nightly\-rust.html> and +requires the \fB\-Z unstable\-options\fR flag to enable (see +\fI#10098\fR <https://github.com/rust\-lang/cargo/issues/10098>). +.RE +.sp +\fB\-h\fR, +\fB\-\-help\fR +.RS 4 +Prints help information. +.RE +.sp +\fB\-Z\fR \fIflag\fR +.RS 4 +Unstable (nightly\-only) flags to Cargo. Run \fBcargo \-Z help\fR for details. +.RE +.SS "Miscellaneous Options" +The \fB\-\-jobs\fR argument affects the building of the test executable but does not +affect how many threads are used when running the tests. The Rust test harness +includes an option to control the number of threads used: +.sp +.RS 4 +.nf +cargo test \-j 2 \-\- \-\-test\-threads=2 +.fi +.RE +.sp +\fB\-j\fR \fIN\fR, +\fB\-\-jobs\fR \fIN\fR +.RS 4 +Number of parallel jobs to run. May also be specified with the +\fBbuild.jobs\fR \fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&. Defaults to +the number of logical CPUs. If negative, it sets the maximum number of +parallel jobs to the number of logical CPUs plus provided value. +Should not be 0. +.RE +.sp +\fB\-\-keep\-going\fR +.RS 4 +Build as many crates in the dependency graph as possible, rather than aborting +the build on the first one that fails to build. Unstable, requires +\fB\-Zunstable\-options\fR\&. +.RE +.sp +\fB\-\-future\-incompat\-report\fR +.RS 4 +Displays a future\-incompat report for any future\-incompatible warnings +produced during execution of this command +.sp +See \fBcargo\-report\fR(1) +.RE +.SH "ENVIRONMENT" +See \fIthe reference\fR <https://doc.rust\-lang.org/cargo/reference/environment\-variables.html> for +details on environment variables that Cargo reads. +.SH "EXIT STATUS" +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fB0\fR: Cargo succeeded. +.RE +.sp +.RS 4 +\h'-04'\(bu\h'+02'\fB101\fR: Cargo failed to complete. +.RE +.SH "EXAMPLES" +.sp +.RS 4 +\h'-04' 1.\h'+01'Execute all the unit and integration tests of the current package: +.sp +.RS 4 +.nf +cargo test +.fi +.RE +.RE +.sp +.RS 4 +\h'-04' 2.\h'+01'Run only tests whose names match against a filter string: +.sp +.RS 4 +.nf +cargo test name_filter +.fi +.RE +.RE +.sp +.RS 4 +\h'-04' 3.\h'+01'Run only a specific test within a specific integration test: +.sp +.RS 4 +.nf +cargo test \-\-test int_test_name \-\- modname::test_name +.fi +.RE +.RE +.SH "SEE ALSO" +\fBcargo\fR(1), \fBcargo\-bench\fR(1), \fItypes of tests\fR <https://doc.rust\-lang.org/cargo/reference/cargo\-targets.html#tests>, \fIhow to write tests\fR <https://doc.rust\-lang.org/rustc/tests/index.html> |