Add auto-generated test files for kotlin client (#17916)

* add auto-generated test files for kotlin client

* undo changes to doc

* add auto-generated model test files in kotlin clients

* update tests

samples/client/petstore/kotlin-array-simple-string-jvm-volley/src/test/kotlin/org/openapitools/client/apis/DefaultApiTest.kt

@@ -0,0 +1,36 @@
+/**
+ *
+ * Please note:
+ * This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * Do not edit this file manually.
+ *
+ */
+
+@file:Suppress(
+    "ArrayInDataClass",
+    "EnumEntryName",
+    "RemoveRedundantQualifierName",
+    "UnusedImport"
+)
+
+package org.openapitools.client.apis
+
+import io.kotlintest.shouldBe
+import io.kotlintest.specs.ShouldSpec
+
+import org.openapitools.client.apis.DefaultApi
+
+class DefaultApiTest : ShouldSpec() {
+    init {
+        // uncomment below to create an instance of DefaultApi
+        //val apiInstance = DefaultApi()
+
+        // to test idsGet
+        should("test idsGet") {
+            // uncomment below to test idsGet
+            //val ids : kotlin.collections.List<kotlin.String> =  // kotlin.collections.List<kotlin.String> | 
+            //apiInstance.idsGet(ids)
+        }
+
+    }
+}