test: add test-benchmark-buffer
First commit:
benchmark: add default configs to buffer benchmark
Add default values to use for `type` and `method` in `buffer` benchmarks
when the provided configuration value is an empty string. This is
primarily useful for testing, so the test can request a single iteration
without having to worry about providing different valid values for the
different benchmarks.
While making this change, some `var` instances in immediately
surrounding code were changed to `const`. In some cases, `var` had been
preserved so that the benchmarks would continue to run in versions of
Node.js prior to 4.0.0. However, now that `const` has been introduced
into the benchmark `common` module, the benchmarks will no longer run
with those versions of Node.js anyway.
Second commit:
test: add test-benchmark-buffer
Add minimal test forbuffer benchmarks.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
commit message follows commit guidelines
Affected core subsystem(s)
test benchmark buffer