test(parser): add parser tests

Author: andrea-acampora

src/test/kotlin/instracture/parser/TestEventParser.kt

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2023. Smart Operating Block
+ *
+ * Use of this source code is governed by an MIT-style
+ * license that can be found in the LICENSE file or at
+ * https://opensource.org/licenses/MIT.
+ */
+
+package instracture.parser
+
+import infrastructure.digitaltwins.DTEventParser
+import io.kotest.core.spec.style.StringSpec
+import io.kotest.matchers.shouldBe
+import io.kotest.matchers.shouldNotBe
+
+/**
+ * Test the parsing of Digital Twin Events.
+ */
+class TestEventParser : StringSpec({
+
+    val parser = DTEventParser()
+
+    val temperatureUpdateEvent = readFileFromResources("/SampleTemperatureUpdateEvent.json")
+    val humidityUpdateEvent = readFileFromResources("/SampleHumidityUpdateEvent.json")
+    val luminosityUpdateEvent = readFileFromResources("/SampleLuminosityUpdateEvent.json")
+    val trackingEvent = readFileFromResources("/SampleTrackingEvent.json")
+
+    "DT parser should parse room event of temperature update" {
+        val event = parser.parseEvent(temperatureUpdateEvent)
+        event shouldNotBe null
+        event.key shouldBe "ROOM_EVENT"
+    }
+
+    "DT parser should parse room event of humidity update" {
+        val event = parser.parseEvent(humidityUpdateEvent)
+        event shouldNotBe null
+        event.key shouldBe "ROOM_EVENT"
+    }
+
+    "DT parser should parse room event of luminosity update" {
+        val event = parser.parseEvent(luminosityUpdateEvent)
+        event shouldNotBe null
+        event.key shouldBe "ROOM_EVENT"
+    }
+
+    "DT parser should parse tracking event" {
+        val event = parser.parseEvent(trackingEvent)
+        event shouldNotBe null
+        event.key shouldBe "TRACKING_EVENT"
+    }
+})
+
+fun readFileFromResources(path: String): String =
+    object {}.javaClass.getResource(path)!!.readText()