Fix api transport mult-line parsing (#13469)

* API transport fix parsing
parse templates after parsing user options, not before

* API transport tests

* fix style and lint

* remove accidental item

* fix more type issues

tests/Traits/MockGuzzleClient.php

@@ -0,0 +1,80 @@
+<?php
+
+namespace LibreNMS\Tests\Traits;
+
+use GuzzleHttp\Client;
+use GuzzleHttp\Handler\MockHandler;
+use GuzzleHttp\HandlerStack;
+use GuzzleHttp\Middleware;
+
+/**
+ * @mixin \LibreNMS\Tests\TestCase
+ */
+trait MockGuzzleClient
+{
+    /**
+     * @var MockHandler
+     */
+    private $guzzleMockHandler;
+
+    /**
+     * @var array
+     */
+    private $guzzleConfig;
+
+    /**
+     * @var array
+     */
+    private $guzzleHistory = [];
+
+    /**
+     * Create a Guzzle MockHandler and bind Client with the handler to the Laravel container
+     *
+     * @param  array  $queue  Sequential Responses to give to the client.
+     * @param  array  $config  Guzzle config settings.
+     */
+    public function mockGuzzleClient(array $queue, array $config = []): MockHandler
+    {
+        $this->guzzleConfig = $config;
+        $this->guzzleMockHandler = new MockHandler($queue);
+
+        $this->app->bind(Client::class, function () {
+            $handlerStack = HandlerStack::create($this->guzzleMockHandler);
+            $handlerStack->push(Middleware::history($this->guzzleHistory));
+
+            return new Client(array_merge($this->guzzleConfig, ['handler' => $handlerStack]));
+        });
+
+        return $this->guzzleMockHandler;
+    }
+
+    /**
+     * Get the request and response history to inspect
+     *
+     * @return array
+     */
+    public function guzzleHistory(): array
+    {
+        return $this->guzzleHistory;
+    }
+
+    /**
+     * Get the request history to inspect
+     *
+     * @return \GuzzleHttp\Psr7\Request[]
+     */
+    public function guzzleRequestHistory(): array
+    {
+        return array_column($this->guzzleHistory, 'request');
+    }
+
+    /**
+     * Get the response history to inspect
+     *
+     * @return \GuzzleHttp\Psr7\Response[]
+     */
+    public function guzzleResponseHistory(): array
+    {
+        return array_column($this->guzzleHistory, 'response');
+    }
+}