diff options
Diffstat (limited to 'jni/ruby/test/benchmark')
| -rw-r--r-- | jni/ruby/test/benchmark/test_benchmark.rb | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/jni/ruby/test/benchmark/test_benchmark.rb b/jni/ruby/test/benchmark/test_benchmark.rb new file mode 100644 index 0000000..1b9964e --- /dev/null +++ b/jni/ruby/test/benchmark/test_benchmark.rb @@ -0,0 +1,161 @@ +require 'test/unit' +require 'benchmark' + +class TestBenchmark < Test::Unit::TestCase + BENCH_FOR_TIMES_UPTO = lambda do |x| + n = 1000 + tf = x.report("for:") { for _ in 1..n; '1'; end } + tt = x.report("times:") { n.times do ; '1'; end } + tu = x.report("upto:") { 1.upto(n) do ; '1'; end } + [tf+tt+tu, (tf+tt+tu)/3] + end + + BENCH_FOR_TIMES_UPTO_NO_LABEL = lambda do |x| + n = 1000 + x.report { for _ in 1..n; '1'; end } + x.report { n.times do ; '1'; end } + x.report { 1.upto(n) do ; '1'; end } + end + + def labels + %w[first second third] + end + + def bench(type = :bm, *args, &block) + if block + Benchmark.send(type, *args, &block) + else + Benchmark.send(type, *args) do |x| + labels.each { |label| + x.report(label) {} + } + end + end + end + + def capture_output + capture_io { yield }.first.gsub(/[ \-]\d\.\d{6}/, ' --time--') + end + + def capture_bench_output(type, *args, &block) + capture_output { bench(type, *args, &block) } + end + + def test_tms_outputs_nicely + assert_equal(" 0.000000 0.000000 0.000000 ( 0.000000)\n", Benchmark::Tms.new.to_s) + assert_equal(" 1.000000 2.000000 10.000000 ( 5.000000)\n", Benchmark::Tms.new(1,2,3,4,5).to_s) + assert_equal("1.000000 2.000000 3.000000 4.000000 10.000000 (5.000000) label", + Benchmark::Tms.new(1,2,3,4,5,'label').format('%u %y %U %Y %t %r %n')) + assert_equal("1.000000 2.000", Benchmark::Tms.new(1).format('%u %.3f', 2)) + assert_equal("100.000000 150.000000 250.000000 (200.000000)\n", + Benchmark::Tms.new(100, 150, 0, 0, 200).to_s) + end + + def test_tms_wont_modify_the_format_String_given + format = "format %u" + Benchmark::Tms.new.format(format) + assert_equal("format %u", format) + end + + BENCHMARK_OUTPUT_WITH_TOTAL_AVG = <<BENCH + user system total real +for: --time-- --time-- --time-- ( --time--) +times: --time-- --time-- --time-- ( --time--) +upto: --time-- --time-- --time-- ( --time--) +>total: --time-- --time-- --time-- ( --time--) +>avg: --time-- --time-- --time-- ( --time--) +BENCH + + def test_benchmark_does_not_print_any_space_if_the_given_caption_is_empty + assert_equal(<<-BENCH, capture_bench_output(:benchmark)) +first --time-- --time-- --time-- ( --time--) +second --time-- --time-- --time-- ( --time--) +third --time-- --time-- --time-- ( --time--) +BENCH + end + + def test_benchmark_makes_extra_calcultations_with_an_Array_at_the_end_of_the_benchmark_and_show_the_result + assert_equal(BENCHMARK_OUTPUT_WITH_TOTAL_AVG, + capture_bench_output(:benchmark, + Benchmark::CAPTION, 7, + Benchmark::FORMAT, ">total:", ">avg:", + &BENCH_FOR_TIMES_UPTO)) + end + + def test_bm_returns_an_Array_of_the_times_with_the_labels + [:bm, :bmbm].each do |meth| + capture_io do + results = bench(meth) + assert_instance_of(Array, results) + assert_equal(labels.size, results.size) + results.zip(labels).each { |tms, label| + assert_instance_of(Benchmark::Tms, tms) + assert_equal(label, tms.label) + } + end + end + end + + def test_bm_correctly_output_when_the_label_width_is_given + assert_equal(<<-BENCH, capture_bench_output(:bm, 6)) + user system total real +first --time-- --time-- --time-- ( --time--) +second --time-- --time-- --time-- ( --time--) +third --time-- --time-- --time-- ( --time--) +BENCH + end + + def test_bm_correctly_output_when_no_label_is_given + assert_equal(<<-BENCH, capture_bench_output(:bm, &BENCH_FOR_TIMES_UPTO_NO_LABEL)) + user system total real + --time-- --time-- --time-- ( --time--) + --time-- --time-- --time-- ( --time--) + --time-- --time-- --time-- ( --time--) +BENCH + end + + def test_bm_can_make_extra_calcultations_with_an_array_at_the_end_of_the_benchmark + assert_equal(BENCHMARK_OUTPUT_WITH_TOTAL_AVG, + capture_bench_output(:bm, 7, ">total:", ">avg:", + &BENCH_FOR_TIMES_UPTO)) + end + + BMBM_OUTPUT = <<BENCH +Rehearsal ------------------------------------------ +first --time-- --time-- --time-- ( --time--) +second --time-- --time-- --time-- ( --time--) +third --time-- --time-- --time-- ( --time--) +--------------------------------- total: --time--sec + + user system total real +first --time-- --time-- --time-- ( --time--) +second --time-- --time-- --time-- ( --time--) +third --time-- --time-- --time-- ( --time--) +BENCH + + def test_bmbm_correctly_guess_the_label_width_even_when_not_given + assert_equal(BMBM_OUTPUT, capture_bench_output(:bmbm)) + end + + def test_bmbm_correctly_output_when_the_label_width_is_given__bmbm_ignore_it__but_it_is_a_frequent_mistake + assert_equal(BMBM_OUTPUT, capture_bench_output(:bmbm, 6)) + end + + def test_report_item_shows_the_title__even_if_not_a_string + assert_operator(capture_bench_output(:bm) { |x| x.report(:title) {} }, :include?, 'title') + assert_operator(capture_bench_output(:bmbm) { |x| x.report(:title) {} }, :include?, 'title') + end + + def test_bugs_ruby_dev_40906_can_add_in_place_the_time_of_execution_of_the_block_given + t = Benchmark::Tms.new + assert_equal(0, t.real) + t.add! { sleep 0.1 } + assert_not_equal(0, t.real) + end + + def test_realtime_output + sleeptime = 1.0 + realtime = Benchmark.realtime { sleep sleeptime } + assert_operator sleeptime, :<, realtime + end +end |