update unittests

Author: YuLiu98

source/module_io/test_serial/read_input_item_test.cpp

@@ -393,15 +393,14 @@ TEST_F(InputTest, Item_test)
     }
     { // stm_bias
         auto it = find_label("stm_bias", readinput.input_lists);
-        param.input.stm_bias[1] = 0.1;
-        param.input.stm_bias[2] = 0;
+        param.input.stm_bias = {1.0, 0.1, 0.0};
         testing::internal::CaptureStdout();
         EXPECT_EXIT(it->second.check_value(it->second, param), ::testing::ExitedWithCode(1), "");
         output = testing::internal::GetCapturedStdout();
         EXPECT_THAT(output, testing::HasSubstr("NOTICE"));
 
-        param.input.stm_bias[1] = 0;
-        param.input.stm_bias[2] = 1;
+        param.input.stm_bias = {1.0, 0.0, 2.0};
+        testing::internal::CaptureStdout();
         EXPECT_EXIT(it->second.check_value(it->second, param), ::testing::ExitedWithCode(1), "");
         output = testing::internal::GetCapturedStdout();
         EXPECT_THAT(output, testing::HasSubstr("NOTICE"));