add test for loki label values

Author: ioanarm

tools/loki_test.go

@@ -18,4 +18,14 @@ func TestLokiTools(t *testing.T) {
 		require.NoError(t, err)
 		assert.Len(t, result, 1)
 	})
+
+	t.Run("get loki label values", func(t *testing.T) {
+		ctx := newTestContext()
+		result, err := listLokiLabelValues(ctx, ListLokiLabelValuesParams{
+			DatasourceUID: "loki",
+			LabelName:     "container",
+		})
+		require.NoError(t, err)
+		assert.NotEmpty(t, result, "Should have at least one container label value")
+	})
 }