forked from grosser/parallel_tests
/
runner_spec.rb
568 lines (481 loc) · 19.1 KB
/
runner_spec.rb
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require "spec_helper"
require "parallel_tests/test/runner"
describe ParallelTests::Test::Runner do
test_tests_in_groups(ParallelTests::Test::Runner, '_test.rb')
test_tests_in_groups(ParallelTests::Test::Runner, '_spec.rb')
describe ".run_tests" do
def call(*args)
ParallelTests::Test::Runner.run_tests(*args)
end
it "allows to override runner executable via PARALLEL_TESTS_EXECUTABLE" do
ENV['PARALLEL_TESTS_EXECUTABLE'] = 'script/custom_rspec'
expect(ParallelTests::Test::Runner).to receive(:execute_command) do |a,b,c,d|
expect(a).to include("script/custom_rspec")
end
call(['xxx'], 1, 22, {})
end
it "uses options" do
expect(ParallelTests::Test::Runner).to receive(:execute_command) do |a,b,c,d|
expect(a).to match(%r{ruby -Itest .* -- -v})
end
call(['xxx'], 1, 22, :test_options => '-v')
end
it "returns the output" do
expect(ParallelTests::Test::Runner).to receive(:execute_command).and_return({:x => 1})
expect(call(['xxx'], 1, 22, {})).to eq({:x => 1})
end
end
describe ".test_in_groups" do
def call(*args)
ParallelTests::Test::Runner.tests_in_groups(*args)
end
it "raises when passed invalid group" do
expect { call([], 1, group_by: :sdjhfdfdjs) }.to raise_error(ArgumentError)
end
it "uses given when passed found" do
result = Gem.win_platform? ? [["a", "b"], ["c"]] : [["a", "c"], ["b"]]
expect(call(["a", "b", "c"], 2, group_by: :found)).to eq(result)
end
context "when passed no group" do
it "sort by file size" do
expect(File).to receive(:stat).with("a").and_return 1
expect(File).to receive(:stat).with("b").and_return 1
expect(File).to receive(:stat).with("c").and_return 3
call(["a", "b", "c"], 2)
end
it "sorts by runtime when runtime is available" do
expect(ParallelTests::Test::Runner).to receive(:puts).with("Using recorded test runtime")
expect(ParallelTests::Test::Runner).to receive(:runtimes).and_return({"a" => 1, "b" => 1, "c" => 3})
expect(call(["a", "b", "c"], 2)).to eq([["c"], ["a", "b"]])
end
it "sorts by filesize when there are no files" do
expect(ParallelTests::Test::Runner).to receive(:puts).never
expect(ParallelTests::Test::Runner).to receive(:runtimes).and_return({})
expect(call([], 2)).to eq([[], []])
end
it "sorts by filesize when runtime is too little" do
expect(ParallelTests::Test::Runner).not_to receive(:puts)
expect(ParallelTests::Test::Runner).to receive(:runtimes).and_return(["a:1"])
expect(File).to receive(:stat).with("a").and_return 1
expect(File).to receive(:stat).with("b").and_return 1
expect(File).to receive(:stat).with("c").and_return 3
call(["a", "b", "c"], 2)
end
end
context "when passed runtime" do
around { |test| Dir.mktmpdir { |dir| Dir.chdir(dir, &test) } }
before do
["aaa", "bbb", "ccc", "ddd"].each { |f| File.write(f, f) }
FileUtils.mkdir("tmp")
end
it "fails when there is no log" do
expect { call(["aaa"], 3, group_by: :runtime) }.to raise_error(Errno::ENOENT)
end
it "fails when there is too little log" do
File.write("tmp/parallel_runtime_test.log", "xxx:123\nyyy:123\naaa:123")
expect { call(["aaa", "bbb", "ccc"], 3, group_by: :runtime) }.to raise_error(RuntimeError)
end
it "groups a lot of missing files when allow-missing is high" do
File.write("tmp/parallel_runtime_test.log", "xxx:123\nyyy:123\naaa:123")
call(["aaa", "bbb", "ccc"], 3, group_by: :runtime, allowed_missing_percent: 80)
end
it "groups when there is enough log" do
File.write("tmp/parallel_runtime_test.log", "xxx:123\nbbb:123\naaa:123")
call(["aaa", "bbb", "ccc"], 3, group_by: :runtime)
end
it "groups when test name contains colons" do
File.write("tmp/parallel_runtime_test.log", "ccc[1:2:3]:1\nbbb[1:2:3]:2\naaa[1:2:3]:3")
expect(call(["aaa[1:2:3]", "bbb[1:2:3]", "ccc[1:2:3]"], 2, group_by: :runtime)).to match_array([["aaa[1:2:3]"], ["bbb[1:2:3]", "ccc[1:2:3]"]])
end
it "groups when not even statistic" do
File.write("tmp/parallel_runtime_test.log", "aaa:1\nbbb:1\nccc:8")
expect(call(["aaa", "bbb", "ccc"], 2, group_by: :runtime)).to match_array([["aaa", "bbb"], ["ccc"]])
end
it "groups with average for missing" do
File.write("tmp/parallel_runtime_test.log", "xxx:123\nbbb:10\nccc:1")
expect(call(["aaa", "bbb", "ccc", "ddd"], 2, group_by: :runtime)).to eq([["bbb", "ccc"], ["aaa", "ddd"]])
end
it "groups with unknown-runtime for missing" do
File.write("tmp/parallel_runtime_test.log", "xxx:123\nbbb:10\nccc:1")
expect(call(["aaa", "bbb", "ccc", "ddd"], 2, group_by: :runtime, unknown_runtime: 0.0)).to eq([["bbb"], ["aaa", "ccc", "ddd"]])
end
it "groups by single_process pattern and then via size" do
expect(ParallelTests::Test::Runner).to receive(:runtimes).
and_return({"aaa" => 5, "bbb" => 2, "ccc" => 1, "ddd" => 1})
result = call(["aaa", "aaa2", "bbb", "ccc", "ddd"], 3, single_process: [/^a.a/], group_by: :runtime)
expect(result).to eq([["aaa", "aaa2"], ["bbb"], ["ccc", "ddd"]])
end
it "groups by size and adds isolated separately" do
skip if RUBY_PLATFORM == "java"
expect(ParallelTests::Test::Runner).to receive(:runtimes).
and_return({"aaa" => 0, "bbb" => 3, "ccc" => 1, "ddd" => 2})
result = call(["aaa", "bbb", "ccc", "ddd", "eee"], 3, isolate: true, single_process: [/^aaa/], group_by: :runtime)
isolated, *groups = result
expect(isolated).to eq(["aaa"])
actual = groups.map(&:to_set).to_set
# both eee and ccs are the same size, so either can be in either group
valid_combinations = [
[["bbb", "eee"], ["ccc", "ddd"]].map(&:to_set).to_set,
[["bbb", "ccc"], ["eee", "ddd"]].map(&:to_set).to_set
]
expect(valid_combinations).to include(actual)
end
it "groups by size and use specified number of isolation groups" do
skip if RUBY_PLATFORM == "java"
expect(ParallelTests::Test::Runner).to receive(:runtimes).
and_return({"aaa1" => 1, "aaa2" => 3, "aaa3" => 2, "bbb" => 3, "ccc" => 1, "ddd" => 2})
result = call(["aaa1", "aaa2", "aaa3", "bbb", "ccc", "ddd", "eee"], 4, isolate: true, isolated_count: 2, single_process: [/^aaa/], group_by: :runtime)
isolated_1, isolated_2, *groups = result
expect(isolated_1).to eq(["aaa2"])
expect(isolated_2).to eq(["aaa1", "aaa3"])
actual = groups.map(&:to_set).to_set
# both eee and ccs are the same size, so either can be in either group
valid_combinations = [
[["bbb", "eee"], ["ccc", "ddd"]].map(&:to_set).to_set,
[["bbb", "ccc"], ["eee", "ddd"]].map(&:to_set).to_set
]
expect(valid_combinations).to include(actual)
end
end
end
describe ".find_results" do
def call(*args)
ParallelTests::Test::Runner.find_results(*args)
end
it "finds multiple results in test output" do
output = <<EOF
Loaded suite /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake/rake_test_loader
Started
..............
Finished in 0.145069 seconds.
10 tests, 20 assertions, 0 failures, 0 errors
Loaded suite /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rake-0.8.4/lib/rake/rake_test_loader
Started
..............
Finished in 0.145069 seconds.
14 tests, 20 assertions, 0 failures, 0 errors
EOF
expect(call(output)).to eq(['10 tests, 20 assertions, 0 failures, 0 errors','14 tests, 20 assertions, 0 failures, 0 errors'])
end
it "ignores color-codes" do
output = <<EOF
10 tests, 20 assertions, 0 \e[31mfailures, 0 errors
EOF
expect(call(output)).to eq(['10 tests, 20 assertions, 0 failures, 0 errors'])
end
it "splits lines with Windows line separators" do
output = "10 tests, 20 assertions, 0 failures, 0 errors\r\n15 tests, 25 assertions, 0 failures, 0 errors"
expect(call(output)).to eq(["10 tests, 20 assertions, 0 failures, 0 errors", "15 tests, 25 assertions, 0 failures, 0 errors"])
end
end
describe ".find_tests" do
def call(*args)
ParallelTests::Test::Runner.send(:find_tests, *args)
end
it "finds test in folders with appended /" do
with_files(['b/a_test.rb']) do |root|
expect(call(["#{root}/"]).sort).to eq([
"#{root}/b/a_test.rb",
])
end
end
it "finds test files nested in symlinked folders" do
with_files(['a/a_test.rb','b/b_test.rb']) do |root|
`ln -s #{root}/a #{root}/b/link`
expect(call(["#{root}/b"]).sort).to eq([
"#{root}/b/b_test.rb",
"#{root}/b/link/a_test.rb",
])
end
end
it "finds test files but ignores those in symlinked folders" do
skip if RUBY_PLATFORM == "java" || Gem.win_platform?
with_files(['a/a_test.rb','b/b_test.rb']) do |root|
`ln -s #{root}/a #{root}/b/link`
expect(call(["#{root}/b"], :symlinks => false).sort).to eq([
"#{root}/b/b_test.rb",
])
end
end
it "finds test files nested in different folders" do
with_files(['a/a_test.rb','b/b_test.rb', 'c/c_test.rb']) do |root|
expect(call(["#{root}/a", "#{root}/b"]).sort).to eq([
"#{root}/a/a_test.rb",
"#{root}/b/b_test.rb",
])
end
end
it "only finds tests in folders" do
with_files(['a/a_test.rb', 'a/test.rb', 'a/test_helper.rb']) do |root|
expect(call(["#{root}/a"]).sort).to eq([
"#{root}/a/a_test.rb"
])
end
end
it "finds tests in nested folders" do
with_files(['a/b/c/d/a_test.rb']) do |root|
expect(call(["#{root}/a"]).sort).to eq([
"#{root}/a/b/c/d/a_test.rb"
])
end
end
it "does not expand paths" do
with_files(['a/x_test.rb']) do |root|
Dir.chdir root do
expect(call(['a']).sort).to eq([
"a/x_test.rb"
])
end
end
end
it "finds test files in folders by pattern" do
with_files(['a/x_test.rb','a/y_test.rb','a/z_test.rb']) do |root|
Dir.chdir root do
expect(call(["a"], :pattern => /^a\/(y|z)_test/).sort).to eq([
"a/y_test.rb",
"a/z_test.rb",
])
end
end
end
it "finds test files in folders using suffix and overriding built in suffix" do
with_files(['a/x_test.rb','a/y_test.rb','a/z_other.rb','a/x_different.rb']) do |root|
Dir.chdir root do
expect(call(["a"], :suffix => /_(test|other)\.rb$/).sort).to eq([
"a/x_test.rb",
"a/y_test.rb",
"a/z_other.rb",
])
end
end
end
it "doesn't find bakup files with the same name as test files" do
with_files(['a/x_test.rb','a/x_test.rb.bak']) do |root|
expect(call(["#{root}/"])).to eq([
"#{root}/a/x_test.rb",
])
end
end
it "finds minispec files" do
with_files(['a/x_spec.rb']) do |root|
expect(call(["#{root}/"])).to eq([
"#{root}/a/x_spec.rb",
])
end
end
it "finds nothing if I pass nothing" do
expect(call(nil)).to eq([])
end
it "finds nothing if I pass nothing (empty array)" do
expect(call([])).to eq([])
end
it "keeps invalid files" do
expect(call(['baz'])).to eq(['baz'])
end
it "discards duplicates" do
expect(call(['baz','baz'])).to eq(['baz'])
end
end
describe ".summarize_results" do
def call(*args)
ParallelTests::Test::Runner.summarize_results(*args)
end
it "adds results" do
expect(call(['1 foo 3 bar','2 foo 5 bar'])).to eq('8 bars, 3 foos')
end
it "adds results with braces" do
expect(call(['1 foo(s) 3 bar(s)','2 foo 5 bar'])).to eq('8 bars, 3 foos')
end
it "adds same results with plurals" do
expect(call(['1 foo 3 bar','2 foos 5 bar'])).to eq('8 bars, 3 foos')
end
it "adds non-similar results" do
expect(call(['1 xxx 2 yyy','1 xxx 2 zzz'])).to eq('2 xxxs, 2 yyys, 2 zzzs')
end
it "does not pluralize 1" do
expect(call(['1 xxx 2 yyy'])).to eq('1 xxx, 2 yyys')
end
end
describe ".execute_command" do
def call(*args)
ParallelTests::Test::Runner.execute_command(*args)
end
let(:new_line_char) { Gem.win_platform? ? "\r\n" : "\n" }
def capture_output
$stdout, $stderr = StringIO.new, StringIO.new
yield
[$stdout.string, $stderr.string]
ensure
$stdout, $stderr = STDOUT, STDERR
end
def run_with_file(content)
ParallelTests.with_pid_file do
capture_output do
Tempfile.open("xxx") do |f|
f.write(content)
f.flush
yield f.path
end
end
end
end
it "sets process number to 2 for 1" do
run_with_file("puts ENV['TEST_ENV_NUMBER']") do |path|
result = call("ruby #{path}", 1, 4, {})
expect(result[:stdout].chomp).to eq '2'
expect(result[:exit_status]).to eq 0
end
end
it "sets process number to '' for 0" do
run_with_file("puts ENV['TEST_ENV_NUMBER'].inspect") do |path|
result = call("ruby #{path}", 0, 4, {})
expect(result[:stdout].chomp).to eq '""'
expect(result[:exit_status]).to eq 0
end
end
it "sets process number to 1 for 0 if requested" do
run_with_file("puts ENV['TEST_ENV_NUMBER']") do |path|
result = call("ruby #{path}", 0, 4, first_is_1: true)
expect(result[:stdout].chomp).to eq '1'
expect(result[:exit_status]).to eq 0
end
end
it 'sets PARALLEL_TEST_GROUPS so child processes know that they are being run under parallel_tests' do
run_with_file("puts ENV['PARALLEL_TEST_GROUPS']") do |path|
result = call("ruby #{path}", 1, 4, {})
expect(result[:stdout].chomp).to eq('4')
expect(result[:exit_status]).to eq(0)
end
end
it "skips reads from stdin" do
skip "hangs on normal ruby, works on jruby" unless RUBY_PLATFORM == "java"
run_with_file("$stdin.read; puts 123") do |path|
result = call("ruby #{path}", 1, 2, {})
expect(result).to include({
:stdout => "123\n",
:exit_status => 0
})
end
end
it "waits for process to finish" do
run_with_file("sleep 0.5; puts 123; sleep 0.5; puts 345") do |path|
result = call("ruby #{path}", 1, 4, {})
expect(result[:stdout].lines.map(&:chomp)).to eq ['123', '345']
expect(result[:exit_status]).to eq 0
end
end
it "prints output while running" do
skip "too slow" if RUBY_PLATFORM == " java"
run_with_file("$stdout.sync = true; puts 123; sleep 0.1; print 345; sleep 0.1; puts 567") do |path|
received = ""
allow($stdout).to receive(:print) do |x|
received << x.strip
end
result = call("ruby #{path}", 1, 4, {})
expect(received).to eq("123345567")
expect(result[:stdout].lines.map(&:chomp)).to eq ['123', '345567']
expect(result[:exit_status]).to eq 0
end
end
it "works with synced stdout" do
run_with_file("$stdout.sync = true; puts 123; sleep 0.1; puts 345") do |path|
result = call("ruby #{path}", 1, 4, {})
expect(result[:stdout].lines.map(&:chomp)).to eq ['123', '345']
expect(result[:exit_status]).to eq 0
end
end
it "does not print to stdout with :serialize_stdout" do
run_with_file("puts 123") do |path|
expect($stdout).not_to receive(:print)
result = call("ruby #{path}", 1, 4, :serialize_stdout => true)
expect(result[:stdout].chomp).to eq '123'
expect(result[:exit_status]).to eq 0
end
end
it "adds test env number to stdout with :prefix_output_with_test_env_number" do
run_with_file("puts 123") do |path|
expect($stdout).to receive(:print).with("[TEST GROUP 2] 123#{new_line_char}")
result = call("ruby #{path}", 1, 4, :prefix_output_with_test_env_number => true)
expect(result[:stdout].chomp).to eq '123'
expect(result[:exit_status]).to eq 0
end
end
it "does not add test env number to stdout without :prefix_output_with_test_env_number" do
run_with_file("puts 123") do |path|
expect($stdout).to receive(:print).with("123#{new_line_char}")
result = call("ruby #{path}", 1, 4, :prefix_output_with_test_env_number => false)
expect(result[:stdout].chomp).to eq '123'
expect(result[:exit_status]).to eq 0
end
end
it "returns correct exit status" do
run_with_file("puts 123; exit 5") do |path|
result = call("ruby #{path}", 1, 4, {})
expect(result[:stdout].chomp).to eq '123'
expect(result[:exit_status]).to eq 5
end
end
it "prints each stream to the correct stream" do
skip "open3"
_out, err = run_with_file("puts 123 ; $stderr.puts 345 ; exit 5") do |path|
result = call("ruby #{path}", 1, 4, {})
expect(result).to include({
:stdout => "123\n",
:exit_status => 5
})
end
expect(err).to eq("345\n")
end
it "uses a lower priority process when the nice option is used", unless: Gem.win_platform? do
priority_cmd = "puts Process.getpriority(Process::PRIO_PROCESS, 0)"
priority_without_nice = run_with_file(priority_cmd){ |cmd| call("ruby #{cmd}", 1, 4, {}) }.first.to_i
priority_with_nice = run_with_file(priority_cmd){ |cmd| call("ruby #{cmd}", 1, 4, :nice => true) }.first.to_i
expect(priority_without_nice).to be < priority_with_nice
end
it "returns command used" do
run_with_file("puts 123; exit 5") do |path|
result = call("ruby #{path}", 1, 4, {})
expect(result).to include({
:command => "ruby #{path}"
})
end
end
describe "rspec seed" do
it "includes seed when provided" do
run_with_file("puts 'Run options: --seed 555'") do |path|
result = call("ruby #{path}", 1, 4, {})
expect(result).to include({
:seed => "555"
})
end
end
it "seed is nil when not provided" do
run_with_file("puts 555") do |path|
result = call("ruby #{path}", 1, 4, {})
expect(result).to include({
:seed => nil
})
end
end
end
end
describe ".command_with_seed" do
def call(args)
base = "ruby -Ilib:test test/minitest/test_minitest_unit.rb"
result = ParallelTests::Test::Runner.command_with_seed("#{base}#{args}", 555)
result.sub(base, '')
end
it "adds the randomized seed" do
expect(call("")).to eq(" --seed 555")
end
it "does not duplicate seed" do
expect(call(" --seed 123")).to eq(" --seed 555")
end
it "does not match strange seeds stuff" do
expect(call(" --seed 123asdasd")).to eq(" --seed 123asdasd --seed 555")
end
it "does not match non seeds" do
expect(call(" --seedling 123")).to eq(" --seedling 123 --seed 555")
end
end
end