diff --git a/test/scicloj/ml/smile/data_test.clj b/test/scicloj/ml/smile/data_test.clj
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+++ b/test/scicloj/ml/smile/data_test.clj
@@ -0,0 +1,45 @@
+(ns scicloj.ml.smile.data-test
+  (:require [tech.v3.dataset :as ds]
+            [tech.v3.datatype.functional :as dfn]
+            [tech.v3.libs.smile.data :as smile-data]
+            [clojure.test :refer [deftest is]])
+  (:import [smile.data DataFrame]))
+
+
+
+(deftest stocks-test
+  (let [stocks (ds/->dataset "test/data/stocks.csv")
+        df-stocks (smile-data/dataset->smile-dataframe stocks)
+        new-val (smile-data/smile-dataframe->dataset df-stocks)]
+    (is (instance? DataFrame df-stocks))
+    ;;Datetime types included
+    (is (= (vec ((ds/ensure-array-backed stocks) "date"))
+           (vec (new-val "date"))))
+    (is (= (vec ((ds/ensure-array-backed stocks) "symbol"))
+           (vec (new-val "symbol"))))
+    (is (dfn/equals (stocks "price")
+                    (new-val "price")))))
+
+
+(deftest ames-test
+  (let [ames-src (-> (ds/->dataset "test/data/ames-house-prices/train.csv")
+                     (ds/select-rows (range 10)))
+        ames-ary (ds/ensure-array-backed ames-src)
+        df-ames (smile-data/dataset->smile-dataframe ames-ary)
+        new-val (smile-data/smile-dataframe->dataset df-ames)]
+    (is (every? = (map vector
+                       (map (comp :datatype meta) (vals ames-src))
+                       (map (comp :datatype meta) (vals ames-ary))
+                       (map (comp :datatype meta) (vals new-val)))))
+    (is (java.util.Objects/equals (ds/missing ames-src)
+                                  (ds/missing ames-ary)))
+    ;;Missing for booleans gets lost in the translation with inference turned on.
+    #_(is (java.util.Objects/equals (ds/missing ames-src)
+                                    (ds/missing new-val)))
+    (is (instance? DataFrame df-ames))
+    ;;Datetime types included
+    (is (= (vec (ames-src "SalePrice"))
+           (vec (new-val "SalePrice"))))
+    ;;Missing for booleans gets lost in the translation with inference turned on.
+    #_(is (= (vec (ames-src "PoolQC"))
+             (vec (new-val "PoolQC"))))))
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