338 lines
12 KiB
Elixir
338 lines
12 KiB
Elixir
defmodule OpentelemetryHTTPoisonTest do
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alias OpentelemetryHTTPoison
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alias OpenTelemetry.Tracer
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use OpentelemetryHTTPoison.Case, async: false
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doctest OpentelemetryHTTPoison
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require OpenTelemetry.Tracer
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require Record
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for {name, spec} <- Record.extract_all(from_lib: "opentelemetry/include/otel_span.hrl") do
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Record.defrecord(name, spec)
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end
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setup do
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flush_mailbox()
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:otel_simple_processor.set_exporter(:otel_exporter_pid, self())
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:ok
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end
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describe "OpentelemetryHTTPoison default attributes and headers" do
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test "standard http client span attribute are set in span" do
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OpentelemetryHTTPoison.get!("http://localhost:8000")
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assert_receive {:span, span(attributes: attributes_record, name: "GET")}
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attributes = elem(attributes_record, 4)
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assert ["http.method", "http.status_code", "http.url", "net.peer.name"] ==
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attributes |> Map.keys() |> Enum.sort()
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assert {"http.method", "GET"} in attributes
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assert {"net.peer.name", "localhost"} in attributes
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end
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test "traceparent header is injected when no headers" do
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%HTTPoison.Response{request: %{headers: headers}} =
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OpentelemetryHTTPoison.get!("http://localhost:8000")
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assert "traceparent" in Enum.map(headers, &elem(&1, 0))
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end
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test "traceparent header is injected when list headers" do
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%HTTPoison.Response{request: %{headers: headers}} =
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OpentelemetryHTTPoison.get!("http://localhost:8000", [{"Accept", "application/json"}])
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assert "traceparent" in Enum.map(headers, &elem(&1, 0))
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end
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test "traceparent header is injected to user-supplied map headers" do
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%HTTPoison.Response{request: %{headers: headers}} =
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OpentelemetryHTTPoison.get!("http://localhost:8000", %{"Accept" => "application/json"})
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assert "traceparent" in Enum.map(headers, &elem(&1, 0))
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end
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test "traceparent header is injected to atom user-supplied map headers" do
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%HTTPoison.Response{request: %{headers: headers}} =
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OpentelemetryHTTPoison.get!("http://localhost:8000", %{atom: "value"})
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assert "atom" in Enum.map(headers, &elem(&1, 0))
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end
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test "http.url doesn't contain credentials" do
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OpentelemetryHTTPoison.get!("http://user:pass@localhost:8000/user/edit/24")
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_attributes(attributes, {"http.url", "http://localhost:8000/user/edit/24"})
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end
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end
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describe "OpentelemetryHTTPoison calls with additional options" do
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test "additional span attributes can be passed to OpentelemetryHTTPoison invocation" do
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OpentelemetryHTTPoison.get!("http://localhost:8000", [],
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ot_attributes: [{"app.callname", "mariorossi"}]
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_attributes(attributes, {"app.callname", "mariorossi"})
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end
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test "resource route can be explicitly passed to OpentelemetryHTTPoison invocation as a string" do
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_resource_route: "/user/edit"
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_attributes(attributes, {"http.route", "/user/edit"})
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end
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test "resource route can be explicitly passed to OpentelemetryHTTPoison invocation as a function" do
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infer_fn = fn request -> URI.parse(request.url).path end
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_resource_route: infer_fn
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_attributes(attributes, {"http.route", "/user/edit/24"})
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end
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test "resource route inference can be explicitly ignored" do
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_resource_route: :ignore
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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refute confirm_http_route_attribute(attributes)
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end
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test "resource route inference can be implicitly ignored" do
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24")
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assert_receive {:span, span(attributes: attributes)}, 1000
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refute confirm_http_route_attribute(attributes)
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end
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test "resource route inference fails if an incorrect value is passed to the OpentelemetryHTTPoison invocation" do
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assert_raise(ArgumentError, fn ->
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_resource_route: nil
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)
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end)
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assert_raise(ArgumentError, fn ->
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [], ot_resource_route: 1)
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end)
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end
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test "resource route and attributes can be passed to OpentelemetryHTTPoison as options together" do
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_resource_route: "/user/edit",
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ot_attributes: [{"app.callname", "mariorossi"}]
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_attributes(attributes, {"http.route", "/user/edit"})
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assert confirm_attributes(attributes, {"app.callname", "mariorossi"})
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end
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end
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describe "parent span is not affected" do
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test "with a successful request" do
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Tracer.with_span "parent" do
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pre_request_ctx = Tracer.current_span_ctx()
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OpentelemetryHTTPoison.get("http://localhost:8000")
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post_request_ctx = Tracer.current_span_ctx()
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assert post_request_ctx == pre_request_ctx
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end
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end
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test "with an nxdomain request" do
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Tracer.with_span "parent" do
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pre_request_ctx = Tracer.current_span_ctx()
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OpentelemetryHTTPoison.get("http://domain.invalid:8000")
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post_request_ctx = Tracer.current_span_ctx()
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assert post_request_ctx == pre_request_ctx
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end
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end
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end
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describe "span_status is set to error for" do
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test "status codes >= 400" do
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OpentelemetryHTTPoison.get!("http://localhost:8000/status/400")
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assert_receive {:span, span(status: {:status, :error, ""})}
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end
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test "HTTP econnrefused errors" do
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{:error, %HTTPoison.Error{reason: expected_reason}} =
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OpentelemetryHTTPoison.get("http://localhost:8001")
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assert_receive {:span, span(status: {:status, :error, recorded_reason})}
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assert inspect(expected_reason) == recorded_reason
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end
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test "HTTP nxdomain errors" do
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{:error, %HTTPoison.Error{reason: expected_reason}} =
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OpentelemetryHTTPoison.get("http://domain.invalid:8001")
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assert_receive {:span, span(status: {:status, :error, recorded_reason})}
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assert inspect(expected_reason) == recorded_reason
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end
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test "HTTP tls errors" do
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{:error, %HTTPoison.Error{reason: expected_reason}} =
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OpentelemetryHTTPoison.get("https://localhost:8000")
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assert_receive {:span, span(status: {:status, :error, recorded_reason})}
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assert inspect(expected_reason) == recorded_reason
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end
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end
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describe "OpentelemetryHTTPoison with additional configuration" do
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test "default attributes can be set via a two element tuple list" do
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set_env(:ot_attributes, [{"test_attribute", "test"}])
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24")
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_attributes(attributes, {"test_attribute", "test"})
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end
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test "default attributes that are not binary will be ignored" do
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set_env(:ot_attributes, [
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{"test_attribute", "test"},
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{1, "ignored"},
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{:ignored, "ignored_too"}
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])
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24")
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_attributes(attributes, {"test_attribute", "test"})
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end
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test "default attributes can be overridden via a two element tuple list passed to the OpentelemetryHTTPoison invocation" do
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set_env(:ot_attributes, [{"test_attribute", "test"}])
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_attributes: [{"test_attribute", "overridden"}]
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_attributes(attributes, {"test_attribute", "overridden"})
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end
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test "default attributes can be combined with attributes passed to the OpentelemetryHTTPoison invocation" do
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set_env(:ot_attributes, [{"test_attribute", "test"}])
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_attributes: [
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{"another_test_attribute", "another test"},
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{"test_attribute_overridden", "overridden"}
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]
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_attributes(attributes, {"test_attribute", "test"})
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assert confirm_attributes(attributes, {"another_test_attribute", "another test"})
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assert confirm_attributes(attributes, {"test_attribute_overridden", "overridden"})
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end
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test "resource route can be implicitly inferred by OpentelemetryHTTPoison invocation using a default function" do
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_resource_route: :infer
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_http_route_attribute(attributes, "/user/:subpath")
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end
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test "resource route can be inferred by OpentelemetryHTTPoison invocation via a configured function" do
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infer_fn = fn
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%HTTPoison.Request{} = request -> URI.parse(request.url).path
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end
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set_env(:infer_route, infer_fn)
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_resource_route: :infer
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_http_route_attribute(attributes, "/user/edit/24")
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end
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test "implicit resource route inference can be overridden with a function passed to the OpentelemetryHTTPoison invocation" do
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infer_fn = fn
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%HTTPoison.Request{} = request -> URI.parse(request.url).path
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end
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invocation_infer_fn = fn _ -> "test" end
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set_env(:infer_route, infer_fn)
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_resource_route: invocation_infer_fn
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_http_route_attribute(attributes, "test")
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end
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test "implicit resource route inference can be overridden with a string passed to the OpentelemetryHTTPoison invocation" do
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infer_fn = fn
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%HTTPoison.Request{} = request -> URI.parse(request.url).path
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end
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set_env(:infer_route, infer_fn)
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_resource_route: "test"
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_http_route_attribute(attributes, "test")
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end
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end
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test "OpentelemetryHTTPoison works if setup is not called" do
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OpentelemetryHTTPoison.get!("http://localhost:8000/user/edit/24", [],
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ot_attributes: [{"some_attribute", "some value"}]
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)
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assert_receive {:span, span(attributes: attributes)}, 1000
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assert confirm_attributes(attributes, {"some_attribute", "some value"})
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end
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def flush_mailbox do
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receive do
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_ -> flush_mailbox()
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after
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10 -> :ok
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end
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end
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defp confirm_attributes(attributes, attributes_to_confirm) do
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attributes
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|> Tuple.to_list()
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|> Enum.filter(&is_map/1)
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|> Enum.any?(fn map ->
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attributes_to_confirm in map
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end)
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end
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defp confirm_http_route_attribute(attributes, value) do
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confirm_attributes(attributes, {"http.route", value})
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end
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defp confirm_http_route_attribute(attributes) do
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confirm_http_route_attribute(attributes, "")
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end
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end
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