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puma--puma/test/test_launcher.rb
Daniel Colson 39d16fadaf Add pumactl command to print thread backtraces (#2054)
* Add pumactl command to print thread backtraces

Completes 1 of 2 items from #1964

This commit adds an endpoint to the status app to print thread
backtraces, and control cli command to call that endpoint.

I tried this locally by starting a server with:

```sh
bundle exec bin/puma test/rackup/hello.ru \
  --control-url="unix://test.sock" \
  --control-token="token"
```

and then printing the backtraces with:

```sh
bundle exec bin/pumactl thread-backtraces \
  --control-url="unix://test.sock" \
  --control-token="token"
```

* Log threads as JSON in control app

With this commit the status app sends the thread backtraces as an array
of objects with `name` and `backtrace` keys, rather than as a string
matching the SIGINFO output.

While working on this I noticed that we logged the thread TID twice.
This commit simplifies that so we only log the thread TID once, with
both the label (I don't know when the label would get set) and name if
they are available.
2019-11-11 13:08:41 +08:00

90 lines
2.6 KiB
Ruby

require_relative "helper"
require "puma/configuration"
class TestLauncher < Minitest::Test
def test_dependencies_and_files_to_require_after_prune_is_correctly_built_for_no_extra_deps
skip_on :no_bundler
deps, dirs = launcher.send(:dependencies_and_files_to_require_after_prune)
assert_equal(1, deps.length)
assert_match(%r{^nio4r:[\d.]+$}, deps.first)
assert_equal(2, dirs.length)
assert_match(%r{puma/lib$}, dirs[0]) # lib dir
assert_match(%r{puma-#{Puma::Const::PUMA_VERSION}$}, dirs[1]) # native extension dir
refute_match(%r{gems/rdoc-[\d.]+/lib$}, dirs[2])
end
def test_dependencies_and_files_to_require_after_prune_is_correctly_built_with_extra_deps
skip_on :no_bundler
conf = Puma::Configuration.new do |c|
c.extra_runtime_dependencies ['rdoc']
end
deps, dirs = launcher(conf).send(:dependencies_and_files_to_require_after_prune)
assert_equal(1, deps.length)
assert_match(%r{^nio4r:[\d.]+$}, deps.first)
assert_equal(3, dirs.length)
assert_match(%r{puma/lib$}, dirs[0]) # lib dir
assert_match(%r{puma-#{Puma::Const::PUMA_VERSION}$}, dirs[1]) # native extension dir
assert_match(%r{gems/rdoc-[\d.]+/lib$}, dirs[2]) # rdoc dir
end
def test_extra_runtime_deps_directories_is_empty_for_no_config
assert_equal([], launcher.send(:extra_runtime_deps_directories))
end
def test_extra_runtime_deps_directories_is_correctly_built
skip_on :no_bundler
conf = Puma::Configuration.new do |c|
c.extra_runtime_dependencies ['rdoc']
end
dep_dirs = launcher(conf).send(:extra_runtime_deps_directories)
assert_equal(1, dep_dirs.length)
assert_match(%r{gems/rdoc-[\d.]+/lib$}, dep_dirs.first)
end
def test_puma_wild_location_is_an_absolute_path
skip_on :no_bundler
puma_wild_location = launcher.send(:puma_wild_location)
assert_match(%r{bin/puma-wild$}, puma_wild_location)
# assert no "/../" in path
refute_match(%r{/\.\./}, puma_wild_location)
end
def test_prints_thread_traces
launcher.thread_status do |name, _backtrace|
assert_match "Thread: TID", name
end
end
def test_pid_file
tmp_file = Tempfile.new("puma-test")
tmp_path = tmp_file.path
tmp_file.close!
conf = Puma::Configuration.new do |c|
c.pidfile tmp_path
end
launcher(conf).write_state
assert_equal File.read(tmp_path).strip.to_i, Process.pid
File.unlink tmp_path
end
private
def events
@events ||= Puma::Events.strings
end
def launcher(config = Puma::Configuration.new, evts = events)
@launcher ||= Puma::Launcher.new(config, events: evts)
end
end