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Usually I run a test like this:
cargo test name_of_test
and in the output I see:
running 1 test
where we have something like:
#[cfg(test)]
mod tests {
#[test]
fn name_of_test() { ...
Now with flamegraph I've tried (billions of permutations of the following arguments, with full path to the test, not full path, --
here --
there, no --
, chuck in --lib
in a few places, tried --unit-test-kind
, etc, etc, adding tests::
like I have an AI running 24/7 trying permutations of the arguments costing $1m per day, and it hasn't found one that works 😆 ):
CARGO_PROFILE_RELEASE_DEBUG=true cargo flamegraph --unit-test -- name_of_test
It just doesn't actually run any tests:
running 0 tests
Sometimes I get permutations with:
Error: crate has no automatically selectable target:
Hint: try passing `--example <example>` or similar to choose a binary
If I try without trying to even specify a test, i.e.:
CARGO_PROFILE_RELEASE_DEBUG=true cargo flamegraph --unit-test
I get:
running 0 tests
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