Check result format in yqlrun/dqrun tests (#8559)

Author: vitstn

ydb/library/yql/public/result_format/ut/yql_result_format_ut.cpp

@@ -14,7 +14,67 @@ void Test(const TString& input) {
 }
 
 Y_UNIT_TEST_SUITE(ParseType) {
-    Y_UNIT_TEST(Throwing) {
+    Y_UNIT_TEST(EmptyVisitor) {
+        TEmptyTypeVisitor v;
+        v.OnNull();
+        v.OnVoid();
+        v.OnEmptyList();
+        v.OnEmptyDict();
+        v.OnBool();
+        v.OnInt8();
+        v.OnUint8();
+        v.OnInt16();
+        v.OnUint16();
+        v.OnInt32();
+        v.OnUint32();
+        v.OnInt64();
+        v.OnUint64();
+        v.OnFloat();
+        v.OnDouble();
+        v.OnString();
+        v.OnUtf8();
+        v.OnYson();
+        v.OnJson();
+        v.OnJsonDocument();
+        v.OnUuid();
+        v.OnDyNumber();
+        v.OnDate();
+        v.OnDatetime();
+        v.OnTimestamp();
+        v.OnTzDate();
+        v.OnTzDatetime();
+        v.OnTzTimestamp();
+        v.OnInterval();
+        v.OnDate32();
+        v.OnDatetime64();
+        v.OnTimestamp64();
+        v.OnTzDate32();
+        v.OnTzDatetime64();
+        v.OnTzTimestamp64();
+        v.OnInterval64();
+        v.OnDecimal(10, 1);
+        v.OnBeginOptional();
+        v.OnEndOptional();
+        v.OnBeginList();
+        v.OnEndList();
+        v.OnBeginTuple();
+        v.OnTupleItem();
+        v.OnEndTuple();
+        v.OnBeginStruct();
+        v.OnStructItem("foo");
+        v.OnEndStruct();
+        v.OnBeginDict();
+        v.OnDictKey();
+        v.OnDictPayload();
+        v.OnEndDict();
+        v.OnBeginVariant();
+        v.OnEndVariant();
+        v.OnBeginTagged("foo");
+        v.OnEndTagged();
+        v.OnPgType("int4", "N");
+    }
+
+    Y_UNIT_TEST(ThrowingVisitor) {
         TThrowingTypeVisitor v;
         UNIT_ASSERT_EXCEPTION(v.OnNull(), TUnsupportedException);
         UNIT_ASSERT_EXCEPTION(v.OnVoid(), TUnsupportedException);
@@ -461,6 +521,48 @@ Y_UNIT_TEST_SUITE(ParseResponse) {
         UNIT_ASSERT(!res.IsTruncated);
     }
 
+    Y_UNIT_TEST(WriteNoType) {
+        auto response = NYT::NodeFromYsonString(R"([
+            {
+                Write = [
+                    {
+                        Data = data;
+                        Truncated = %true;
+                    }
+                ]
+            };
+        ])");
+
+        auto resList = ParseResponse(response);
+        UNIT_ASSERT_VALUES_EQUAL(resList.size(), 1);
+        const auto& res = resList[0];
+        UNIT_ASSERT_VALUES_EQUAL(res.Writes.size(), 1);
+        const auto& write = res.Writes[0];
+        UNIT_ASSERT_VALUES_EQUAL(NYT::NodeToCanonicalYsonString(*write.Data), "\"data\"");
+        UNIT_ASSERT(!write.Type);
+    }
+
+    Y_UNIT_TEST(WriteNoData) {
+        auto response = NYT::NodeFromYsonString(R"([
+            {
+                Write = [
+                    {
+                        Type = type;
+                        Refs = [];
+                    }
+                ]
+            };
+        ])");
+
+        auto resList = ParseResponse(response);
+        UNIT_ASSERT_VALUES_EQUAL(resList.size(), 1);
+        const auto& res = resList[0];
+        UNIT_ASSERT_VALUES_EQUAL(res.Writes.size(), 1);
+        const auto& write = res.Writes[0];
+        UNIT_ASSERT_VALUES_EQUAL(NYT::NodeToCanonicalYsonString(*write.Type), "\"type\"");
+        UNIT_ASSERT(!write.Data);
+    }    
+
     Y_UNIT_TEST(RefsEmpty) {
         auto response = NYT::NodeFromYsonString(R"([
             {