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# frozen_string_literal: true
require "spec_helper"
describe Hitimes::TimedValueMetric do
before(:each) do
@tm = Hitimes::TimedValueMetric.new("test-timed-value-metric")
end
it "knows if it is running or not" do
_(@tm.running?).must_equal false
@tm.start
_(@tm.running?).must_equal true
@tm.stop(1)
_(@tm.running?).must_equal false
end
it "#split returns the last duration and the timer is still running" do
@tm.start
d = @tm.split(1)
_(@tm.running?).must_equal true
_(d).must_be :>, 0
_(@tm.value_stats.count).must_equal 1
_(@tm.timed_stats.count).must_equal 1
_(@tm.duration).must_equal d
end
it "#stop returns false if called more than once in a row" do
@tm.start
_(@tm.stop(1)).must_be :>, 0
_(@tm.stop(1)).must_equal false
end
it "does not count a currently running interval as an interval in calculations" do
@tm.start
_(@tm.value_stats.count).must_equal 0
_(@tm.timed_stats.count).must_equal 0
@tm.split(1)
_(@tm.value_stats.count).must_equal 1
_(@tm.timed_stats.count).must_equal 1
end
it "#split called on a stopped timer does nothing" do
@tm.start
@tm.stop(1)
_(@tm.split(1)).must_equal false
end
it "calculates the mean of the durations" do
skip
3.times do |x|
@tm.start
@tm.stop(x)
end
_(@tm.timed_stats.mean).must_be :>, 0
_(@tm.value_stats.mean).must_equal 1.00
end
it "calculates the rate of the counts " do
skip
5.times do |x|
@tm.start
@tm.stop(x)
end
_(@tm.rate).must_be :>, 0
end
it "calculates the stddev of the durations" do
skip
3.times do |x|
@tm.start
@tm.stop(x)
end
_(@tm.timed_stats.stddev).must_be :>, 0
_(@tm.value_stats.stddev).must_equal 1.0
end
it "returns 0.0 for stddev if there is no data" do
_(@tm.timed_stats.stddev).must_equal 0.0
_(@tm.value_stats.stddev).must_equal 0.0
end
it "keeps track of the min value" do
skip
3.times do |x|
@tm.start
@tm.stop(x)
end
_(@tm.timed_stats.min).must_be :>, 0
_(@tm.value_stats.min).must_equal 0
end
it "keeps track of the max value" do
skip
3.times do |x|
@tm.start
@tm.stop(x)
end
_(@tm.timed_stats.max).must_be :>, 0
_(@tm.value_stats.max).must_equal 2
end
it "keeps track of the sum value" do
skip
3.times do |x|
@tm.start
@tm.stop(x)
end
_(@tm.timed_stats.sum).must_be :>, 0
_(@tm.value_stats.sum).must_equal 3
end
it "keeps track of the sum of squares value" do
skip
3.times do |x|
@tm.start
@tm.stop(x)
end
_(@tm.timed_stats.sumsq).must_be :>, 0
_(@tm.value_stats.sumsq).must_equal 5
end
it "keeps track of the minimum start time of all the intervals" do
f1 = Time.now.gmtime.to_f * 1_000_000
5.times do
@tm.start
@tm.stop(1)
end
f2 = Time.now.gmtime.to_f * 1_000_000
_(@tm.sampling_start_time).must_be :>=, f1
_(@tm.sampling_start_time).must_be :<, f2
end
it "keeps track of the last stop time of all the intervals" do
f1 = Time.now.gmtime.to_f * 1_000_000
5.times do
@tm.start
@tm.stop(1)
end
f2 = Time.now.gmtime.to_f * 1_000_000
_(@tm.sampling_stop_time).must_be :>, f1
_(@tm.sampling_stop_time).must_be :<=, f2
end
it "can create an already running timer" do
t = Hitimes::TimedValueMetric.now("already-running")
_(t.running?).must_equal true
end
it "can measure a block of code from an instance" do
skip
t = Hitimes::TimedValueMetric.new("measure a block")
3.times { t.measure(1) { sleep 0.001 } }
_(t.duration).must_be :>, 0
_(t.timed_stats.count).must_equal 3
_(t.value_stats.count).must_equal 3
end
it "returns the value of the block when measuring" do
skip
t = Hitimes::TimedValueMetric.new("measure a block")
x = t.measure(42) do
sleep 0.001
42
end
_(t.duration).must_be :>, 0
_(x).must_equal 42
end
describe "#to_hash" do
it "has name value" do
h = @tm.to_hash
_(h["name"]).must_equal "test-timed-value-metric"
end
it "has an empty has for additional_data" do
h = @tm.to_hash
_(h["additional_data"]).must_equal({})
_(h["additional_data"].size).must_equal 0
end
it "has a rate" do
skip
5.times do |x|
@tm.start
@tm.stop(x)
end
h = @tm.to_hash
_(h["rate"]).must_be :>, 0
end
it "has a unit_count" do
5.times do |x|
@tm.start
@tm.stop(x)
end
h = @tm.to_hash
_(h["unit_count"]).must_equal 10
end
fields = %w[name additional_data sampling_start_time sampling_stop_time value_stats timed_stats rate unit_count]
fields.each do |f|
it "has a value for #{f}" do
3.times { |x| @tm.measure(x) { sleep 0.001 } }
h = @tm.to_hash
_(h[f]).wont_be_nil
end
end
end
end
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