diff --git a/test/event_jsons/good/event_state_sensor.json b/test/event_jsons/good/event_state_sensor.json
new file mode 100644
index 0000000..f10a319
--- /dev/null
+++ b/test/event_jsons/good/event_state_sensor.json
@@ -0,0 +1,66 @@
+{
+    "entries": [
+        {
+            "containerID": 1,
+            "entityType": 64,
+            "entityInstance": 1,
+            "sensorOffset": 0,
+            "event_states": [
+                0,
+                1,
+                2
+            ],
+            "dbus": {
+                "object_path": "/xyz/abc/def",
+                "interface": "xyz.openbmc_project.example1.value",
+                "property_name": "value1",
+                "property_type": "string",
+                "property_values": [
+                    "xyz.openbmc_project.State.Normal",
+                    "xyz.openbmc_project.State.Critical",
+                    "xyz.openbmc_project.State.Fatal"
+                ]
+            }
+        },
+        {
+            "containerID": 1,
+            "entityType": 64,
+            "entityInstance": 1,
+            "sensorOffset": 1,
+            "event_states": [
+                2,
+                3
+            ],
+            "dbus": {
+                "object_path": "/xyz/abc/def",
+                "interface": "xyz.openbmc_project.example2.value",
+                "property_name": "value2",
+                "property_type": "uint8_t",
+                "property_values": [
+                    9,
+                    10
+                ]
+            }
+        },
+        {
+            "containerID": 2,
+            "entityType": 67,
+            "entityInstance": 2,
+            "sensorOffset": 0,
+            "event_states": [
+                0,
+                1
+            ],
+            "dbus": {
+                "object_path": "/xyz/abc/ghi",
+                "interface": "xyz.openbmc_project.example3.value",
+                "property_name": "value3",
+                "property_type": "bool",
+                "property_values": [
+                    false,
+                    true
+                ]
+            }
+        }
+    ]
+}
diff --git a/test/event_jsons/malformed1/event_state.json b/test/event_jsons/malformed1/event_state.json
new file mode 100644
index 0000000..29f9b04
--- /dev/null
+++ b/test/event_jsons/malformed1/event_state.json
@@ -0,0 +1,26 @@
+{
+    "entries": [
+        {
+            "containerID": 1,
+            "entityType": 64,
+            "entityInstance": 1,
+            "sensorOffset": 1,
+            "event_states": [
+                0,
+                1,
+                2
+            ],
+            "dbus": {
+                "object_path": "/xyz/abc/def",
+                "interface": "xyz.openbmc_project.example1.value",
+                "property_name": "value1",
+                "property_type": "string",
+                "property_values": [
+                    "xyz.openbmc_project.State.Normal",
+                    "xyz.openbmc_project.State.Critical",
+                    "xyz.openbmc_project.State.Fatal"
+                ]
+            }
+        }
+    ]
+}
diff --git a/test/event_jsons/malformed2/event_state_sensor.json b/test/event_jsons/malformed2/event_state_sensor.json
new file mode 100644
index 0000000..f7de057
--- /dev/null
+++ b/test/event_jsons/malformed2/event_state_sensor.json
@@ -0,0 +1,26 @@
+{
+    "entries": [
+        {
+            "containerID": 1,
+            "entityType": 64,
+            "entityInstance": 1,
+            "sensorOffset": 1,
+            "event_states": [
+                0,
+                1,
+                2
+            ],
+            "dbus": {
+                "object_path": "/xyz/abc/def",
+                "interface": "xyz.openbmc_project.example1.value",
+                "property_name": "value1",
+                "property_type": "string",
+                "property_values": [
+                    "xyz.openbmc_project.State.Normal",
+                    "xyz.openbmc_project.State.Critical"
+                    "xyz.openbmc_project.State.Fatal"
+                ]
+            }
+        }
+    ]
+}