diff --git a/libpldmresponder/test/system_type1/bios_jsons/string_attrs.json b/libpldmresponder/test/system_type1/bios_jsons/string_attrs.json
new file mode 100644
index 0000000..7e3b8f4
--- /dev/null
+++ b/libpldmresponder/test/system_type1/bios_jsons/string_attrs.json
@@ -0,0 +1,49 @@
+{
+    "entries": [
+        {
+            "attribute_name": "str_example1",
+            "string_type": "ASCII",
+            "minimum_string_length": 1,
+            "maximum_string_length": 100,
+            "default_string_length": 3,
+            "default_string": "abc",
+            "readOnly": false,
+            "helpText": "str_example1 HelpText",
+            "displayName": "str_example1 DisplayName",
+            "dbus": {
+                "object_path": "/xyz/abc/def",
+                "interface": "xyz.openbmc_project.str_example1.value",
+                "property_name": "Str_example1",
+                "property_type": "string"
+            }
+        },
+        {
+            "attribute_name": "str_example2",
+            "string_type": "Hex",
+            "minimum_string_length": 0,
+            "maximum_string_length": 200,
+            "default_string_length": 0,
+            "default_string": "",
+            "readOnly": false,
+            "helpText": "str_example2 HelpText",
+            "displayName": "str_example2 DisplayName",
+            "dbus": {
+                "object_path": "/xyz/abc/def",
+                "interface": "xyz.openbmc_project.str_example2.value",
+                "property_name": "Str_example2",
+                "property_type": "string"
+            }
+        },
+        {
+            "attribute_name": "str_example3",
+            "string_type": "Unknown",
+            "minimum_string_length": 1,
+            "maximum_string_length": 100,
+            "default_string_length": 2,
+            "default_string": "ef",
+            "readOnly": true,
+            "helpText": "str_example3 HelpText",
+            "displayName": "str_example3 DisplayName"
+        }
+    ]
+}