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|
# frozen_string_literal: true
describe TestProf::StackProf do
# Use fresh config all for every example
after { described_class.remove_instance_variable(:@config) }
describe ".config" do
subject { described_class.config }
specify "defaults", :aggregate_failures do
expect(subject.mode).to eq :wall
expect(subject.interval).to be_nil
expect(subject.raw).to eq true
end
end
describe "#profile" do
let(:stack_prof) { double("stack_prof") }
before do
stub_const("StackProf", stack_prof)
end
specify "with default config" do
expect(stack_prof).to receive(:start).with(
mode: :wall,
raw: true
)
described_class.profile
end
specify "with custom config" do
described_class.config.raw = false
described_class.config.mode = :cpu
expect(stack_prof).to receive(:start).with(
mode: :cpu,
raw: false
)
described_class.profile
end
specify "with ignore_gc option" do
described_class.config.ignore_gc = true
expect(stack_prof).to receive(:start).with(
mode: :wall,
raw: true,
ignore_gc: true
)
described_class.profile
end
specify "when block is given" do
expect(stack_prof).to receive(:run).with(
out: File.join(TestProf.config.output_dir, "stack-prof-report-wall-raw-stub.dump").to_s,
mode: :wall,
raw: true
)
described_class.profile("stub") { 0 == 1 }
end
end
describe "#dump" do
let(:stack_prof) { double("stack_prof") }
before do
stub_const("StackProf", stack_prof)
end
it "stops profiling and stores results" do
expect(described_class).to receive(:dump_json_report)
expect(stack_prof).to receive(:results).with(
File.join(TestProf.config.output_dir, "stack-prof-report-wall-raw-stub.dump").to_s
)
expect(stack_prof).to receive(:stop)
described_class.dump("stub")
end
end
end
|
