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-rw-r--r--jni/ruby/test/benchmark/test_benchmark.rb161
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
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+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