Add Kotlin usage tests

Author: adsharma

build.gradle

@@ -1,5 +1,6 @@
 plugins {
     id 'java'
+    id 'org.jetbrains.kotlin.jvm' version '2.3.20'
     id 'signing'
     id 'maven-publish'
 }

src/test/kotlin/com/lbugdb/KotlinUsageTest.kt

@@ -0,0 +1,68 @@
+package com.ladybugdb
+
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertFalse
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Test
+
+class KotlinUsageTest : TestBase() {
+    @Test
+    fun queryResultCanBeReadFromKotlin() {
+        val result = TestHelper.getConnection().query("MATCH (p:person) RETURN p.fName ORDER BY p.ID LIMIT 2")
+        try {
+            assertTrue(result.isSuccess)
+            assertEquals(1, result.numColumns)
+            assertEquals("p.fName", result.getColumnName(0))
+
+            val names = mutableListOf<String>()
+            while (result.hasNext()) {
+                val tuple = result.next
+                names += tuple.getValue(0).getValue<String>()
+            }
+
+            assertEquals(listOf("Alice", "Bob"), names)
+        } finally {
+            result.close()
+        }
+    }
+
+    @Test
+    fun preparedStatementCanBeExecutedFromKotlin() {
+        val statement = TestHelper.getConnection()
+            .prepare("MATCH (p:person) WHERE p.fName = \$name RETURN COUNT(*)")
+        try {
+            assertTrue(statement.isSuccess)
+
+            val params = mapOf("name" to Value("Alice"))
+            val result = TestHelper.getConnection().execute(statement, params)
+            try {
+                assertTrue(result.isSuccess)
+                assertTrue(result.hasNext())
+                assertEquals(1L, result.next.getValue(0).getValue<Long>())
+            } finally {
+                params.values.forEach { it.close() }
+                result.close()
+            }
+        } finally {
+            statement.close()
+        }
+    }
+
+    @Test
+    fun valuesAndDataTypesAreUsableFromKotlin() {
+        val value = Value(42L)
+        try {
+            assertFalse(value.isNull)
+            assertEquals(42L, value.getValue<Long>())
+
+            val dataType = value.dataType
+            try {
+                assertEquals(DataTypeID.INT64, dataType.id)
+            } finally {
+                dataType.close()
+            }
+        } finally {
+            value.close()
+        }
+    }
+}