1 files changed, 63 insertions, 0 deletions
diff --git a/spec/lib/api/entities/ml/mlflow/get_run_spec.rb b/spec/lib/api/entities/ml/mlflow/get_run_spec.rb
new file mode 100644
index 00000000000..513ecdeee3c
--- /dev/null
+++ b/spec/lib/api/entities/ml/mlflow/get_run_spec.rb
@@ -0,0 +1,63 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe API::Entities::Ml::Mlflow::GetRun, feature_category: :mlops do
+  let_it_be(:candidate) { build(:ml_candidates, :with_metrics_and_params) }
+
+  subject { described_class.new(candidate).as_json }
+
+  it 'has run key' do
+    expect(subject).to have_key(:run)
+  end
+
+  it 'has the id' do
+    expect(subject.dig(:run, :info, :run_id)).to eq(candidate.eid.to_s)
+  end
+
+  it 'presents the metrics' do
+    expect(subject.dig(:run, :data, :metrics).size).to eq(candidate.metrics.size)
+  end
+
+  it 'presents metrics correctly' do
+    presented_metric = subject.dig(:run, :data, :metrics)[0]
+    metric = candidate.metrics[0]
+
+    expect(presented_metric[:key]).to eq(metric.name)
+    expect(presented_metric[:value]).to eq(metric.value)
+    expect(presented_metric[:timestamp]).to eq(metric.tracked_at)
+    expect(presented_metric[:step]).to eq(metric.step)
+  end
+
+  it 'presents the params' do
+    expect(subject.dig(:run, :data, :params).size).to eq(candidate.params.size)
+  end
+
+  it 'presents params correctly' do
+    presented_param = subject.dig(:run, :data, :params)[0]
+    param = candidate.params[0]
+
+    expect(presented_param[:key]).to eq(param.name)
+    expect(presented_param[:value]).to eq(param.value)
+  end
+
+  context 'when candidate has no metrics' do
+    before do
+      allow(candidate).to receive(:metrics).and_return([])
+    end
+
+    it 'returns empty data' do
+      expect(subject.dig(:run, :data, :metrics)).to be_empty
+    end
+  end
+
+  context 'when candidate has no params' do
+    before do
+      allow(candidate).to receive(:params).and_return([])
+    end
+
+    it 'data is empty' do
+      expect(subject.dig(:run, :data, :params)).to be_empty
+    end
+  end
+end