1 files changed, 43 insertions, 0 deletions
diff --git a/spec/lib/gitlab/graphql/tracers/application_context_tracer_spec.rb b/spec/lib/gitlab/graphql/tracers/application_context_tracer_spec.rb
new file mode 100644
index 00000000000..6eff816b95a
--- /dev/null
+++ b/spec/lib/gitlab/graphql/tracers/application_context_tracer_spec.rb
@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+require "fast_spec_helper"
+require "support/graphql/fake_tracer"
+require "support/graphql/fake_query_type"
+
+RSpec.describe Gitlab::Graphql::Tracers::ApplicationContextTracer do
+  let(:tracer_spy) { spy('tracer_spy') }
+  let(:default_known_operations) { ::Gitlab::Graphql::KnownOperations.new(['fooOperation']) }
+  let(:dummy_schema) do
+    schema = Class.new(GraphQL::Schema) do
+      use Gitlab::Graphql::Tracers::ApplicationContextTracer
+
+      query Graphql::FakeQueryType
+    end
+
+    fake_tracer = Graphql::FakeTracer.new(lambda do |key, *args|
+      tracer_spy.trace(key, Gitlab::ApplicationContext.current)
+    end)
+
+    schema.tracer(fake_tracer)
+
+    schema
+  end
+
+  before do
+    allow(::Gitlab::Graphql::KnownOperations).to receive(:default).and_return(default_known_operations)
+  end
+
+  it "sets application context during execute_query and cleans up afterwards", :aggregate_failures do
+    dummy_schema.execute("query fooOperation { helloWorld }")
+
+    # "parse" is just an arbitrary trace event that isn't setting caller_id
+    expect(tracer_spy).to have_received(:trace).with("parse", hash_excluding("meta.caller_id"))
+    expect(tracer_spy).to have_received(:trace).with("execute_query", hash_including("meta.caller_id" => "graphql:fooOperation")).once
+    expect(Gitlab::ApplicationContext.current).not_to include("meta.caller_id")
+  end
+
+  it "sets caller_id when operation is not known" do
+    dummy_schema.execute("query fuzz { helloWorld }")
+
+    expect(tracer_spy).to have_received(:trace).with("execute_query", hash_including("meta.caller_id" => "graphql:unknown")).once
+  end
+end