correct the unittest

Author: kirk0830

source/module_io/test_serial/read_input_item_test.cpp

@@ -1049,46 +1049,54 @@ TEST_F(InputTest, Item_test2)
         it->second.reset_value(it->second, param);
         EXPECT_EQ(param.input.vdw_s6, "0.75");
 
+        // dftd3 parameter will not get its value here
         param.input.vdw_s6 = "default";
         param.input.vdw_method = "d3_0";
         it->second.reset_value(it->second, param);
-        EXPECT_EQ(param.input.vdw_s6, "1.0");
+        // EXPECT_EQ(param.input.vdw_s6, "1.0");
+        EXPECT_EQ(param.input.vdw_s6, "default");
     }
     { // vdw_s8
         auto it = find_label("vdw_s8", readinput.input_lists);
         param.input.vdw_s8 = "default";
         param.input.vdw_method = "d3_0";
         it->second.reset_value(it->second, param);
-        EXPECT_EQ(param.input.vdw_s8, "0.722");
+        // EXPECT_EQ(param.input.vdw_s8, "0.722");
+        EXPECT_EQ(param.input.vdw_s8, "default");
 
         param.input.vdw_s8 = "default";
         param.input.vdw_method = "d3_bj";
         it->second.reset_value(it->second, param);
-        EXPECT_EQ(param.input.vdw_s8, "0.7875");
+        // EXPECT_EQ(param.input.vdw_s8, "0.7875");
+        EXPECT_EQ(param.input.vdw_s8, "default");
     }
     { // vdw_a1
         auto it = find_label("vdw_a1", readinput.input_lists);
         param.input.vdw_a1 = "default";
         param.input.vdw_method = "d3_0";
         it->second.reset_value(it->second, param);
-        EXPECT_EQ(param.input.vdw_a1, "1.217");
+        // EXPECT_EQ(param.input.vdw_a1, "1.217");
+        EXPECT_EQ(param.input.vdw_a1, "default");
 
         param.input.vdw_a1 = "default";
         param.input.vdw_method = "d3_bj";
         it->second.reset_value(it->second, param);
-        EXPECT_EQ(param.input.vdw_a1, "0.4289");
+        // EXPECT_EQ(param.input.vdw_a1, "0.4289");
+        EXPECT_EQ(param.input.vdw_a1, "default");
     }
     { // vdw_a2
         auto it = find_label("vdw_a2", readinput.input_lists);
         param.input.vdw_a2 = "default";
         param.input.vdw_method = "d3_0";
         it->second.reset_value(it->second, param);
-        EXPECT_EQ(param.input.vdw_a2, "1.0");
+        // EXPECT_EQ(param.input.vdw_a2, "1.0");
+        EXPECT_EQ(param.input.vdw_a2, "default");
 
         param.input.vdw_a2 = "default";
         param.input.vdw_method = "d3_bj";
         it->second.reset_value(it->second, param);
-        EXPECT_EQ(param.input.vdw_a2, "4.4407");
+        // EXPECT_EQ(param.input.vdw_a2, "4.4407");
+        EXPECT_EQ(param.input.vdw_a2, "default");
     }
     { // vdw_c6_unit
         auto it = find_label("vdw_c6_unit", readinput.input_lists);