Add dev-smoke-test.php for manual testing

.gitignore

@@ -1,3 +1,4 @@
 /vendor
 composer.phar
 .idea
+.env

src/dev-smoke-test.php

@@ -0,0 +1,62 @@
+<?php declare(strict_types=1);
+
+require_once __DIR__ . '/../vendor/autoload.php';
+
+use Cronofy\Batch\Batch;
+use Cronofy\Exception\CronofyException;
+use Cronofy\Exception\PartialBatchFailureException;
+
+$cronofy = new Cronofy\Cronofy([
+  "client_id" => $_ENV["CLIENT_ID"],
+  "client_secret" => $_ENV["CLIENT_SECRET"],
+  "access_token" => $_ENV["ACCESS_TOKEN"],
+  "refresh_token" => $_ENV["REFRESH_TOKEN"],
+  "data_center" => $_ENV["DATACENTER"]
+]);
+
+$calendarId = $_ENV["CALENDAR_ID"];
+$start = date("Y-m-d", strtotime('tomorrow')) . "T09:30:00Z";
+$end   = date("Y-m-d", strtotime('tomorrow')) . "T10:00:00Z";
+
+$testEventId = 'php-smoke-test-001';
+$testEventData = [
+  'calendar_id' => 'calendarID',
+  'event_id' => $testEventId,
+  'summary' => 'PHP SDK test event 001',
+  'description' => 'Just checking this thing is on!',
+  'start' => $start,
+  'end' => $end,
+];
+
+$batch = Batch::create()
+  ->upsertEvent($calendarId, $testEventData)
+  ->deleteEvent($calendarId, $testEventId)
+  ->deleteEvent("fake-calendar-id", "just-want-it-to-fail")
+  ->upsertEvent($calendarId, []);
+
+try {
+  $result = $cronofy->executeBatch($batch);
+
+} catch (PartialBatchFailureException $exception) {
+  echo "PARTIAL FAILURE\n\n";
+  $result = $exception->result();
+} finally {
+  foreach ($result->responses() as $index=>$response) {
+    echo "Request " . $index . " - " . $response->request()->method() . " " . $response->request()->relativeUrl() . "\n";
+    echo $response->hasSuccessStatus() ? "  Success" : "  Failed";
+    echo "\n";
+    echo "  status " . $response->status() . "\n";
+
+    echo "  headers ";
+    $headers = $response->headers();
+    print_r($headers);
+    echo "\n";
+
+    echo "  data ";
+    $data = $response->data();
+    print_r($data);
+    echo "\n\n";
+  }
+}
+
+