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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| defmodule PrometheusTelemetry.Metrics.EctoTest do | ||
| use ExUnit.Case, async: true | ||
| alias PrometheusTelemetry.Metrics.Ecto | ||
|
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| describe "metrics/1" do | ||
| test "able to create a list of metrics" do | ||
| repos = [Repo, Repo.CMS] | ||
| assert length(Ecto.metrics(repos)) === length(repos) * 4 | ||
| end | ||
|
|
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| test "able to reduce replica repo into one" do | ||
| repos = [Repo, Repo.Replica1, Repo.Replica2, Repo.Replica3] | ||
| # Should have 8 metrics | ||
| # 4 for regular repo | ||
| # 4 for replicas | ||
| assert length(Ecto.metrics(repos)) === 16 | ||
| end | ||
| end | ||
| end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| defmodule PrometheusTelemetry.RouterTest do | ||
| use ExUnit.Case, async: true | ||
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| @test_port 4050 | ||
| @finch_name RouterTest.Finch | ||
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| setup do | ||
| assert {:ok, _} = Finch.start_link(name: @finch_name) | ||
| :ok | ||
| end | ||
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| describe "&fetch_metrics/0" do | ||
| test "fetches and renders metric data" do | ||
| assert {:ok, %Finch.Response{body: body}} = | ||
| :get | ||
| |> Finch.build("http://localhost:#{@test_port}") | ||
| |> Finch.request(@finch_name) | ||
|
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| assert String.length(body) > 1 | ||
| end | ||
| end | ||
| end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| defmodule PrometheusTelemetryTest do | ||
| use ExUnit.Case, async: true | ||
|
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| import Telemetry.Metrics, only: [counter: 2] | ||
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| @event_name_a [:some_event, :name] | ||
| @event_name_b [:some_event, :name, :secondary] | ||
|
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| setup_all do | ||
| key = generate_key() | ||
| name = String.to_atom(key) | ||
|
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| {:ok, pid} = | ||
| PrometheusTelemetry.start_link( | ||
| name: name, | ||
| metrics: metrics(key) | ||
| ) | ||
|
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| %{pid: pid, key: key, name: name} | ||
| end | ||
|
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| describe "&start_link/1" do | ||
| test "can start multiple metrics under a supervisor", %{key: key, pid: pid, name: name} do | ||
| assert {:ok, ^pid} = | ||
| PrometheusTelemetry.start_link( | ||
| name: name, | ||
| metrics: new_metrics(key) | ||
| ) | ||
| end | ||
|
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| test "raise error if metrics and periodic_measurements is nil" do | ||
| assert_raise NimbleOptions.ValidationError, fn -> | ||
| PrometheusTelemetry.start_link( | ||
| periodic_measurements: nil, | ||
| metrics: nil | ||
| ) | ||
| end | ||
| end | ||
|
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| test "can have multiple supervisors under seperate names to group metrics", %{pid: pid} do | ||
| key = generate_key() | ||
|
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| assert {:ok, new_pid} = | ||
| PrometheusTelemetry.start_link( | ||
| name: String.to_atom(key), | ||
| metrics: metrics(key) | ||
| ) | ||
|
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| assert new_pid !== pid | ||
| end | ||
| end | ||
|
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| describe "&list/0" do | ||
| test "lists all supervisors", %{key: key} do | ||
| new_key = generate_key() | ||
|
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| assert {:ok, _new_pid} = | ||
| PrometheusTelemetry.start_link( | ||
| name: String.to_atom(new_key), | ||
| metrics: metrics(new_key) | ||
| ) | ||
|
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| supervisor_length = | ||
| PrometheusTelemetry.list() | ||
| |> Enum.filter(fn supervisor_name -> | ||
| string_name = Atom.to_string(supervisor_name) | ||
|
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| string_name =~ key or string_name =~ new_key | ||
| end) | ||
| |> length() | ||
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| assert supervisor_length === 2 | ||
| end | ||
| end | ||
|
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| describe "&list_prometheus_cores/1" do | ||
| test "lists all the metric cores from a supervisor", %{pid: pid} do | ||
| assert [prometheus_core | _] = PrometheusTelemetry.list_prometheus_cores(pid) | ||
|
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| assert prometheus_core |> TelemetryMetricsPrometheus.Core.scrape() |> is_binary() | ||
| end | ||
| end | ||
|
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| defp metrics(key) do | ||
| [ | ||
| counter("#{key}.some_thing.test", | ||
| event_name: @event_name_a, | ||
| measurement: :count, | ||
| description: "HELLO" | ||
| ) | ||
| ] | ||
| end | ||
|
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| defp new_metrics(key) do | ||
| [ | ||
| counter("#{key}.some_thing.test.version_2", | ||
| event_name: @event_name_b, | ||
| measurement: :count, | ||
| description: "HELLO22", | ||
| tag: [:second_item] | ||
| ) | ||
| ] | ||
| end | ||
|
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| defp generate_key, do: Faker.Pokemon.name() |> String.replace(~r/[^\d\w]/, "") | ||
| end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| defmodule PrometheusTelemetry.Support.MockSupervisor do | ||
| @moduledoc "gen server use for mock metric" | ||
| import Telemetry.Metrics, only: [counter: 2] | ||
| @event_name_b "magic_snort_snort" | ||
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| @spec setup :: none | ||
| def setup do | ||
| PrometheusTelemetry.start_link( | ||
| name: :test_exporter, | ||
| exporter: [enabled?: true], | ||
| metrics: [ | ||
| counter("some_thing.test.magic", | ||
| event_name: @event_name_b, | ||
| measurement: :count, | ||
| description: "HELLO", | ||
| tag: [:bacon] | ||
| ) | ||
| ] | ||
| ) | ||
| end | ||
| end | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,3 @@ | ||
| PrometheusTelemetry.Support.MockSupervisor.setup() | ||
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| ExUnit.start() |