Better tests directory structure (#2231)

tests/image_specific_tests/all-spark-notebook/data/local_pyspark.ipynb

@@ -0,0 +1,43 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from pyspark.sql import SparkSession\n",
+    "\n",
+    "# Spark session & context\n",
+    "spark = SparkSession.builder.master(\"local\").getOrCreate()\n",
+    "sc = spark.sparkContext\n",
+    "\n",
+    "# Sum of the first 100 whole numbers\n",
+    "rdd = sc.parallelize(range(100 + 1))\n",
+    "rdd.sum()\n",
+    "# 5050"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.10"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}