62 lines
1.7 KiB
Crystal
62 lines
1.7 KiB
Crystal
require "json"
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require "./example"
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module Spectator
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# Information about the runtime of examples.
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class Profile
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include Indexable(Example)
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# Total length of time it took to run all examples in the test suite.
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getter total_time : Time::Span
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# Creates the profiling information.
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# The *slowest* results must already be sorted, longest time first.
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def initialize(@slowest : Array(Example), @total_time)
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end
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# Produces the profile from a report.
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def self.generate(examples, size = 10)
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finished = examples.select(&.finished?).to_a
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total_time = finished.sum(&.result.elapsed)
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sorted_examples = finished.sort_by(&.result.elapsed)
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slowest = sorted_examples.last(size).reverse
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new(slowest, total_time)
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end
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# Number of results in the profile.
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def size
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@slowest.size
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end
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# Retrieves a result at the specified index.
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def unsafe_fetch(index)
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@slowest.unsafe_fetch(index)
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end
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# Length of time it took to run the results in the profile.
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def time
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@slowest.sum(&.result.elapsed)
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end
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# Percentage (from 0 to 100) of time the results in this profile took compared to all examples.
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def percentage
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time / @total_time * 100
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end
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# Produces a JSON fragment containing the profiling information.
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def to_json(json : JSON::Builder)
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json.object do
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json.field("examples") do
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json.array do
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@slowest.each(&.to_json(json))
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end
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end
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json.field("slowest", @slowest.max_of(&.result.elapsed).total_seconds)
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json.field("total", time.total_seconds)
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json.field("percentage", percentage)
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end
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end
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end
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end
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