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#!/usr/bin/env ruby
# encoding: UTF-8
require File.expand_path('../test_helper', __FILE__)
require 'fileutils'
require 'stringio'
require 'tmpdir'
require_relative 'prime'
# -- Tests ----
class PrintersTest < TestCase
def setup
super
# WALL_TIME, PROCESS_TIME, ALLOCATIONS and MEMORY as types of measuremen
measure_modes = {wall_time: RubyProf::WALL_TIME, process_time: RubyProf::PROCESS_TIME, allocations: RubyProf::ALLOCATIONS, memory: RubyProf::MEMORY}
@results = {}
measure_modes.each do |key, value|
@results[key] = RubyProf::Profile.profile(measure_mode: value) do
run_primes(1000, 5000)
end
end
end
def test_printers
output = ENV['SHOW_RUBY_PROF_PRINTER_OUTPUT'] == "1" ? STDOUT : StringIO.new('')
printer = RubyProf::CallStackPrinter.new(@results[:wall_time])
printer.print(output)
printer = RubyProf::CallTreePrinter.new(@results[:wall_time])
printer.print(:path => Dir.tmpdir)
printer = RubyProf::FlatPrinter.new(@results[:wall_time])
printer.print(output)
printer = RubyProf::GraphHtmlPrinter.new(@results[:wall_time])
printer.print(output)
printer = RubyProf::GraphPrinter.new(@results[:wall_time])
printer.print(output)
end
def test_print_to_files
printer = RubyProf::DotPrinter.new(@results[:wall_time])
File.open("#{Dir.tmpdir}/graph.dot", "w") {|f| printer.print(f)}
printer = RubyProf::CallStackPrinter.new(@results[:wall_time])
File.open("#{Dir.tmpdir}/stack.html", "w") {|f| printer.print(f, :application => "primes")}
printer = RubyProf::MultiPrinter.new(@results[:wall_time])
printer.print(:path => Dir.tmpdir, :profile => "multi", :application => "primes")
['graph.dot', 'multi.flat.txt', 'multi.graph.html', "multi.callgrind.out.#{$$}", 'multi.stack.html', 'stack.html'].each do |file_name|
file_path = File.join(Dir.tmpdir, file_name)
refute(File.empty?(file_path))
end
end
def test_refuses_io_objects
p = RubyProf::MultiPrinter.new(@results[:wall_time])
begin
p.print(STDOUT)
flunk "should have raised an ArgumentError"
rescue ArgumentError => e
assert_match(/IO/, e.to_s)
end
end
def test_refuses_non_hashes
p = RubyProf::MultiPrinter.new (@results[:wall_time])
begin
p.print([])
flunk "should have raised an ArgumentError"
rescue ArgumentError => e
assert_match(/hash/, e.to_s)
end
end
def test_flat_string
output = helper_test_flat_string(RubyProf::FlatPrinter)
assert_match(/prime.rb/, output)
end
def helper_test_flat_string(klass)
output = ''
printer = klass.new(@results[:wall_time])
printer.print(output)
assert_match(/Thread ID: -?\d+/i, output)
assert_match(/Fiber ID: -?\d+/i, output)
assert_match(/Total: \d+\.\d+/i, output)
assert_match(/Object#run_primes/i, output)
output
end
def test_graph_html_string
output = ''
printer = RubyProf::GraphHtmlPrinter.new(@results[:wall_time])
printer.print(output)
assert_match(/<!DOCTYPE html>/i, output)
assert_match( %r{<th>Total</th>}i, output)
assert_match(/Object#run_primes/i, output)
end
def test_graph_string
output = ''
printer = RubyProf::GraphPrinter.new(@results[:wall_time])
printer.print(output)
assert_match(/Thread ID: -?\d+/i, output)
assert_match(/Fiber ID: -?\d+/i, output)
assert_match(/Total Time: \d+\.\d+/i, output)
assert_match(/Object#run_primes/i, output)
end
def do_nothing
start = Time.now
while(Time.now == start)
end
end
def test_all_with_small_percentiles
result = RubyProf::Profile.profile do
sleep 2
do_nothing
end
# RubyProf::CallTreePrinter doesn't "do" a min_percent
# RubyProf::FlatPrinter only outputs if self time > percent...
for klass in [RubyProf::GraphPrinter, RubyProf::GraphHtmlPrinter]
printer = klass.new(result)
out = ''
printer.print(out, :min_percent => 0.00000001)
assert_match(/do_nothing/, out)
end
end
def test_print_footer
results_keys = [:wall_time, :process_time, :allocations, :memory]
expected_matches = [
"The percentage of time spent by this method relative to the total time in the entire program.",
"The total time spent by this method and its children.",
"The time spent by this method.",
"The time spent by this method's children.",
"The percentage of allocations made by this method relative to the total allocations in the entire program.",
"The total number of allocations made by this method and its children.",
"The number of allocations made by this method.",
"The number of allocations made by this method's children.",
"The percentage of memory used by this method relative to the total memory in the entire program.",
"The total memory used by this method and its children.",
"The memory used by this method.",
"The memory used by this method's children."
]
results_keys.each do |key|
output = ''
printer = RubyProf::GraphPrinter.new(@results[key])
printer.print(output)
case key
when :wall_time, :process_time
matches = expected_matches[0..3]
when :allocations
matches = expected_matches[4..7]
when :memory
matches = expected_matches[8..11]
end
matches.each do |pattern|
assert_match(pattern, output)
end
end
end
end
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