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Reword the cargo test --help text about the --jobs argument #4050

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May 16, 2017
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Reword the cargo test --help text about the --jobs argument #4050

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9 changes: 7 additions & 2 deletions src/bin/test.rs
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Expand Up @@ -56,7 +56,7 @@ Options:
--no-run Compile, but don't run tests
-p SPEC, --package SPEC ... Package to run tests for
--all Test all packages in the workspace
-j N, --jobs N Number of parallel jobs, defaults to # of CPUs
-j N, --jobs N Number of parallel builds, see below for details
--release Build artifacts in release mode, with optimizations
--features FEATURES Space-separated list of features to also build
--all-features Build all available features
Expand Down Expand Up @@ -86,7 +86,12 @@ All packages in the workspace are tested if the `--all` flag is supplied. The
`--all` flag may be supplied in the presence of a virtual manifest.

The --jobs argument affects the building of the test executable but does
not affect how many jobs are used when running the tests.
not affect how many jobs are used when running the tests. The default value
for the --jobs argument is the number of CPUs. If you want to control the
number of simultaneous running test cases, pass the `--test-threads` option
to the test binaries:

cargo test -- --test-threads=1

Compilation can be configured via the `test` profile in the manifest.

Expand Down