add unit test

Author: wenxi-zeng

analytics-kotlin-live/src/androidTest/java/com/segment/analytics/liveplugins/kotlin/JSStorageTest.kt

@@ -0,0 +1,55 @@
+package com.segment.analytics.liveplugins.kotlin
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.segment.analytics.liveplugins.kotlin.utils.MemorySharedPreferences
+import com.segment.analytics.substrata.kotlin.JSScope
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+
+
+@OptIn(ExperimentalCoroutinesApi::class)
+@RunWith(AndroidJUnit4::class)
+class JSStorageTest {
+
+    private lateinit var engine: JSScope
+    private lateinit var jsStorage: JSStorage
+    private var exceptionThrown: Throwable? = null
+
+    @Before
+    fun setUp() {
+        exceptionThrown = null
+
+        engine = JSScope{ exception ->
+            exceptionThrown = exception
+        }
+        jsStorage = JSStorage(MemorySharedPreferences(), engine)
+        // Setup the engine similar to LivePlugins.configureEngine
+        engine.sync {
+            export(jsStorage, "Storage", "storage")
+        }
+    }
+
+    @Test
+    fun testJSStorageWithInt() {
+        // set from js
+        var value = engine.await {
+            evaluate("""storage.setValue("int", 1)""")
+            evaluate("""storage.getValue("int")""")
+        }
+        assertNull(exceptionThrown)
+        assertEquals(1, value)
+        assertEquals(1, jsStorage.getValue("int"))
+
+        // set from native
+        jsStorage.setValue("int", 2)
+        value = engine.await {
+            evaluate("""storage.getValue("int")""")
+        }
+        assertEquals(2, value)
+        assertEquals(2, jsStorage.getValue("int"))
+    }
+}

analytics-kotlin-live/src/main/java/com/segment/analytics/liveplugins/kotlin/JSStorage.kt

@@ -65,7 +65,7 @@ class JSStorage {
         }
     }
 
-    private fun save(key: String, value: Any, type: String) {
+    private inline fun <reified T> save(key: String, value: T, type: String) {
         val jsonObject = buildJsonObject {
             put(PROP_TYPE, type)
             put(PROP_VALUE, Json.encodeToString(value))