PHPC-1414: Skip tests when mongo orchestration is not available

Author: jmikola

tests/cursor/cursor-getmore-005.phpt

@@ -12,6 +12,7 @@ MongoDB\Driver\Cursor query result iteration with getmore failure
 <?php skip_if_server_version(">=", "3.6"); ?>
 <?php skip_if_no_getmore_failpoint(); ?>
 <?php skip_if_auth(); ?>
+<?php skip_if_no_mongo_orchestration(); ?>
 --FILE--
 <?php
 require_once __DIR__ . "/../utils/basic.inc";

tests/cursor/cursor-getmore-006.phpt

@@ -12,6 +12,7 @@ MongoDB\Driver\Cursor command result iteration with getmore failure
 <?php skip_if_server_version(">=", "3.6"); ?>
 <?php skip_if_no_getmore_failpoint(); ?>
 <?php skip_if_auth(); ?>
+<?php skip_if_no_mongo_orchestration(); ?>
 --FILE--
 <?php
 require_once __DIR__ . "/../utils/basic.inc";

tests/cursor/cursor-getmore-007.phpt

@@ -12,6 +12,7 @@ MongoDB\Driver\Cursor query result iteration with getmore failure
 <?php skip_if_server_version("<", "3.6"); ?>
 <?php skip_if_no_getmore_failpoint(); ?>
 <?php skip_if_auth(); ?>
+<?php skip_if_no_mongo_orchestration(); ?>
 --FILE--
 <?php
 require_once __DIR__ . "/../utils/basic.inc";

tests/cursor/cursor-getmore-008.phpt

@@ -12,6 +12,7 @@ MongoDB\Driver\Cursor command result iteration with getmore failure
 <?php skip_if_server_version("<", "3.6"); ?>
 <?php skip_if_no_getmore_failpoint(); ?>
 <?php skip_if_auth(); ?>
+<?php skip_if_no_mongo_orchestration(); ?>
 --FILE--
 <?php
 require_once __DIR__ . "/../utils/basic.inc";

tests/utils/skipif.php

@@ -356,3 +356,16 @@ function skip_if_no_failcommand_failpoint()
         exit("skip mongod version '$serverVersion' does not support 'failCommand' failpoint'");
     }
 }
+
+function skip_if_no_mongo_orchestration()
+{
+    $ctx = stream_context_create(['http' => ['timeout' => 0.5]]);
+    $result = @file_get_contents(MONGO_ORCHESTRATION_URI, false, $ctx);
+
+    /* Note: file_get_contents emits an E_WARNING on failure, which will be
+     * caught by the error handler in basic-skipif.inc. In that case, this may
+     * never be reached. */
+    if ($result === false) {
+        exit("skip mongo-orchestration is not accessible: '" . MONGO_ORCHESTRATION_URI . "'");
+    }
+}