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add test of Elixir cumulative explicit histogram #712

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merged 2 commits into from Mar 16, 2024
Merged

add test of Elixir cumulative explicit histogram #712

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19c0b2d
add test of Elixir cumulative explicit histogram
tsloughter Mar 16, 2024
e42deea
mix format
tsloughter Mar 16, 2024
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79 changes: 78 additions & 1 deletion test/otel_metric_tests.exs
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Expand Up @@ -3,6 +3,7 @@ defmodule OtelMetricTests do

require OpenTelemetryAPIExperimental.Counter, as: Counter
require OpenTelemetryAPIExperimental.UpDownCounter, as: UpDownCounter
require OpenTelemetryAPIExperimental.Histogram, as: Histogram

require Record
@fields Record.extract(:metric, from_lib: "opentelemetry_experimental/include/otel_metrics.hrl")
Expand All @@ -16,6 +17,11 @@ defmodule OtelMetricTests do
@fields Record.extract(:sum, from_lib: "opentelemetry_experimental/include/otel_metrics.hrl")
Record.defrecordp(:sum, @fields)

@fields Record.extract(:histogram,
from_lib: "opentelemetry_experimental/include/otel_metrics.hrl"
)
Record.defrecordp(:histogram, @fields)

setup do
Application.load(:opentelemetry_experimental)
Application.load(:opentelemetry)
Expand All @@ -34,7 +40,7 @@ defmodule OtelMetricTests do
observable_counter: :temporality_cumulative,
updown_counter: :temporality_delta,
observable_updowncounter: :temporality_cumulative,
histogram: :temporality_delta,
histogram: :temporality_cumulative,
observable_gauge: :temporality_cumulative
}
}
Expand Down Expand Up @@ -97,4 +103,75 @@ defmodule OtelMetricTests do
data: sum(datapoints: [datapoint(value: 9)])
)}
end

test "create Histogram with macros" do
Histogram.create(:histogram_a, %{unit: "1", description: "some histogram_a"})
Histogram.record(:histogram_a, 1)

:otel_meter_server.force_flush()

assert_receive {:metric,
metric(
name: :histogram_a,
data:
histogram(
aggregation_temporality: :temporality_cumulative,
datapoints: [
{:histogram_datapoint, %{}, _, _, 1, 1,
[0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[
0.0,
5.0,
10.0,
25.0,
50.0,
75.0,
100.0,
250.0,
500.0,
750.0,
1000.0,
2500.0,
5000.0,
7500.0,
10000.0
], [], 0, 1, 1}
]
)
)}

Histogram.record(:histogram_a, 10)

:otel_meter_server.force_flush()

assert_receive {:metric,
metric(
name: :histogram_a,
data:
histogram(
aggregation_temporality: :temporality_cumulative,
datapoints: [
{:histogram_datapoint, %{}, _, _, 2, 11,
[0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[
0.0,
5.0,
10.0,
25.0,
50.0,
75.0,
100.0,
250.0,
500.0,
750.0,
1000.0,
2500.0,
5000.0,
7500.0,
10000.0
], [], 0, 1, 10}
]
)
)}
end
end