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require 'spec_helper'
describe Heapy do
it 'has a version number' do
expect(Heapy::VERSION).not_to be nil
end
describe "heap diffs" do
it "diffs 2 heaps" do
out = run("#{RbConfig.ruby} bin/heapy diff #{fixtures('dumps/diff/my_dump_1.json')} #{fixtures('dumps/diff/my_dump_2.json')}")
expect(out).to match("Allocated STRING 9991 objects")
end
it "diffs 3 heaps" do
out = run("#{RbConfig.ruby} bin/heapy diff #{fixtures('dumps/diff/my_dump_1.json')} #{fixtures('dumps/diff/my_dump_2.json')} #{fixtures('dumps/diff/my_dump_3.json')}")
expect(out).to match("Retained STRING 9991 objects")
end
it "outputs the diff" do
Dir.mktmpdir do |tmp_dir|
file = "#{tmp_dir}/output.dump"
run("#{RbConfig.ruby} bin/heapy diff #{fixtures('dumps/diff/my_dump_1.json')} #{fixtures('dumps/diff/my_dump_2.json')} --output_diff=#{file}")
expect(`cat #{file} | wc -l`).to match("10006")
end
end
end
it "drills down all" do
out = run("#{RbConfig.ruby} bin/heapy read #{ fixtures('dumps/00-heap.dump') } all")
expect(out).to match("4325616 /Users/richardschneeman/.gem/ruby/2.2.3/gems/activesupport-4.2.3/lib/active_support/core_ext/marshal.rb:6")
end
it "drills down" do
out = run("#{RbConfig.ruby} bin/heapy read #{ fixtures('dumps/00-heap.dump') } 36")
# memory count
expect(out).to match("377065 /Users/richardschneeman/Documents/projects/codetriage/app/views/layouts/application.html.slim:1")
# string counts
expect(out).to match("4 \"application\"")
# ref counts
expect(out).to match("1672 /Users/richardschneeman/.gem/ruby/2.2.3/gems/activerecord-4.2.3/lib/active_record/attribute.rb:5")
end
context 'with no generation specified' do
let(:cmd) { "#{RbConfig.ruby} bin/heapy read #{ fixtures('dumps/00-heap.dump') }" }
it 'analyzes' do
out = run(cmd)
expect(out).to match("Generation: nil object count: 209189")
end
it "summarizes" do
out = run(cmd)
expect(out).to include("Heap total")
expect(out).to include("Generations (active): 5")
expect(out).to include("Count: 278443")
expect(out).to include("Memory: 8004.6 kb")
end
end
end
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