From 2ef88f517d218ef0f9324622f06209c59138a634 Mon Sep 17 00:00:00 2001
From: Gerard Roche <gerardroche@users.noreply.github.com>
Date: Wed, 20 May 2020 16:45:14 +0100
Subject: run-tests: echo message and exit if no tests found

The test runner currently defaults to running the entire test suite if
no selected tests can be found. This can be unexpected.

For example the ext/mysqlnd/ directory has no tests, if you specify that
directory when testing the entire test suite will be run.

    run-tests.php [options] ext/mysqlnd/

Closes GH-5605.
---
 run-tests.php | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'run-tests.php')

diff --git a/run-tests.php b/run-tests.php
index d14fcafeee..51a82aad64 100755
--- a/run-tests.php
+++ b/run-tests.php
@@ -394,6 +394,7 @@ NO_PROC_OPEN_ERROR;
     $temp_urlbase = null;
     $conf_passed = null;
     $no_clean = false;
+    $selected_tests = false;
     $slow_min_ms = INF;
     $preload = false;
     $file_cache = null;
@@ -634,6 +635,7 @@ NO_PROC_OPEN_ERROR;
         }
 
         if (!$is_switch) {
+            $selected_tests = true;
             $testfile = realpath($argv[$i]);
 
             if (!$testfile && strpos($argv[$i], '*') !== false && function_exists('glob')) {
@@ -664,6 +666,11 @@ NO_PROC_OPEN_ERROR;
         }
     }
 
+    if ($selected_tests && count($test_files) === 0) {
+        echo "No tests found.\n";
+        return;
+    }
+
     // Default to PHP_BINARY as executable
     if (!isset($environment['TEST_PHP_EXECUTABLE'])) {
         $php = PHP_BINARY;
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