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require 'spec/profiler/profiler_spec_helpers'
describe JRuby::Profiler, "::JsonProfilePrinter" do
include JRuby::Profiler::SpecHelpers
context 'when printing an empty profile' do
before do
@profile_data = JRuby::Profiler.profile {}
end
it 'contains only the top invocation' do
json_output['methods'].length.should equal(1)
json_output['methods'].first['name'].should == '(top)'
end
it 'contains the total duration' do
json_output['total_time'].should == 0.0
end
it 'outputs the name of the thread' do
json_output['thread_name'].should == 'main'
end
end
context 'when printing a profile' do
before do
obj = ProfilerTest.new
@profile_data = JRuby::Profiler.profile do
obj.wait(0.01)
obj.test_instance_method
end
end
it 'outputs the total duration' do
json_output['total_time'].should > 0.0
end
it 'outputs the name of the thread' do
json_output['thread_name'].should == 'main'
end
context 'outputs method data which' do
let :method_invocation do
json_output['methods'].find { |m| m['name'] == 'ProfilerTest#test_instance_method' }
end
let :top_invocation do
json_output['methods'].find { |m| m['name'] == '(top)' }
end
it 'contains the number of calls, total, self and child time' do
method_invocation.should include('total_calls' => 1, 'total_time' => anything, 'self_time' => anything, 'child_time' => anything)
end
it 'contains data on the calls from parents, including calls, total, self and child time' do
method_invocation['parents'].length.should equal(1)
call_data = method_invocation['parents'].find { |c| c['id'] == top_invocation['id'] }
call_data.should include('total_calls' => 1, 'total_time' => anything, 'self_time' => anything, 'child_time' => anything)
end
it 'contains data on the calls to children' do
method1_invocation = json_output['methods'].find { |m| m['name'] == 'ProfilerTest#wait' }
method2_invocation = json_output['methods'].find { |m| m['name'] == 'ProfilerTest#test_instance_method' }
call1_data = top_invocation['children'].find { |c| c['id'] == method1_invocation['id'] }
call1_data.should include('total_calls' => 1, 'total_time' => anything, 'self_time' => anything, 'child_time' => anything)
call2_data = top_invocation['children'].find { |c| c['id'] == method2_invocation['id'] }
call2_data.should include('total_calls' => 1, 'total_time' => anything, 'self_time' => anything, 'child_time' => anything)
end
end
end
end
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