diff --git a/bin/templatemap_generator.php b/bin/templatemap_generator.php
index 86d8c36e3..0346f9e7f 100755
--- a/bin/templatemap_generator.php
+++ b/bin/templatemap_generator.php
@@ -1,7 +1,7 @@
 #!/usr/bin/env php
 <?php
 
-$help = <<< EOH
+$help = <<<'EOH'
 Generate template maps.
 
 Usage:
@@ -86,7 +86,7 @@
 }
 
 $basePath = $argv[1];
-$files = ($argc < 3)
+$files    = $argc < 3
     ? findTemplateFilesInTemplatePath($basePath)
     : array_slice($argv, 2);
 
@@ -99,14 +99,14 @@
 
 $realPath = realpath($basePath);
 
-$entries = array_map(function ($file) use ($basePath, $realPath) {
+$entries = array_map(function (string $file) use ($basePath, $realPath) {
     $file = str_replace('\\', '/', $file);
 
-    $template = (0 === strpos($file, $realPath))
+    $template = 0 === strpos($file, $realPath)
         ? substr($file, strlen($realPath))
         : $file;
 
-    $template = (0 === strpos($template, $basePath))
+    $template = 0 === strpos($template, $basePath)
         ? substr($template, strlen($basePath))
         : $template;
 
@@ -126,7 +126,8 @@
 exit(0);
 
 /**
- * @psalm-return list<mixed>
+ * @param string $templatePath
+ * @return list<string>
  */
 function findTemplateFilesInTemplatePath($templatePath): array
 {
@@ -138,7 +139,8 @@ function findTemplateFilesInTemplatePath($templatePath): array
 
     $files = [];
     foreach ($rii as $file) {
-        if (strtolower($file->getExtension()) != 'phtml') {
+        assert($file instanceof SplFileInfo);
+        if (strtolower($file->getExtension()) !== 'phtml') {
             continue;
         }
 
diff --git a/composer.json b/composer.json
index a0c578c6c..329269f7c 100644
--- a/composer.json
+++ b/composer.json
@@ -37,9 +37,9 @@
         "psr/container": "^1 || ^2"
     },
     "require-dev": {
-        "laminas/laminas-authentication": "^2.13",
+        "laminas/laminas-authentication": "^2.15",
         "laminas/laminas-coding-standard": "~2.5.0",
-        "laminas/laminas-feed": "^2.20",
+        "laminas/laminas-feed": "^2.21",
         "laminas/laminas-filter": "^2.32",
         "laminas/laminas-http": "^2.18",
         "laminas/laminas-i18n": "^2.23",
@@ -52,9 +52,9 @@
         "laminas/laminas-permissions-acl": "^2.15",
         "laminas/laminas-router": "^3.11.1",
         "laminas/laminas-uri": "^2.10",
-        "phpunit/phpunit": "^10.1.3",
+        "phpunit/phpunit": "^10.3.2",
         "psalm/plugin-phpunit": "^0.18.4",
-        "vimeo/psalm": "^5.12"
+        "vimeo/psalm": "^5.15"
     },
     "conflict": {
         "container-interop/container-interop": "<1.2",
diff --git a/composer.lock b/composer.lock
index 85b43771e..345758a58 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "d8c4880e9375fc4df0bb44fdb9436bf2",
+    "content-hash": "e06dd7d89c9aea20629a02cddefedab3",
     "packages": [
         {
             "name": "laminas/laminas-escaper",
@@ -5493,16 +5493,16 @@
         },
         {
             "name": "vimeo/psalm",
-            "version": "5.14.1",
+            "version": "5.15.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/vimeo/psalm.git",
-                "reference": "b9d355e0829c397b9b3b47d0c0ed042a8a70284d"
+                "reference": "5c774aca4746caf3d239d9c8cadb9f882ca29352"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/vimeo/psalm/zipball/b9d355e0829c397b9b3b47d0c0ed042a8a70284d",
-                "reference": "b9d355e0829c397b9b3b47d0c0ed042a8a70284d",
+                "url": "https://api.github.com/repos/vimeo/psalm/zipball/5c774aca4746caf3d239d9c8cadb9f882ca29352",
+                "reference": "5c774aca4746caf3d239d9c8cadb9f882ca29352",
                 "shasum": ""
             },
             "require": {
@@ -5530,6 +5530,9 @@
                 "symfony/console": "^4.1.6 || ^5.0 || ^6.0",
                 "symfony/filesystem": "^5.4 || ^6.0"
             },
+            "conflict": {
+                "nikic/php-parser": "4.17.0"
+            },
             "provide": {
                 "psalm/psalm": "self.version"
             },
@@ -5593,9 +5596,9 @@
             ],
             "support": {
                 "issues": "https://github.com/vimeo/psalm/issues",
-                "source": "https://github.com/vimeo/psalm/tree/5.14.1"
+                "source": "https://github.com/vimeo/psalm/tree/5.15.0"
             },
-            "time": "2023-08-01T05:16:55+00:00"
+            "time": "2023-08-20T23:07:30+00:00"
         },
         {
             "name": "webimpress/coding-standard",
diff --git a/test/bin/TemplateMapGeneratorTest.php b/test/bin/TemplateMapGeneratorTest.php
new file mode 100644
index 000000000..727c6ca1b
--- /dev/null
+++ b/test/bin/TemplateMapGeneratorTest.php
@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LaminasTest\View\bin;
+
+use PHPUnit\Framework\TestCase;
+
+use function chdir;
+use function sprintf;
+
+use const PHP_EOL;
+
+final class TemplateMapGeneratorTest extends TestCase
+{
+    private function commandOutput(string $args): string
+    {
+        chdir(__DIR__);
+
+        $command = sprintf(__DIR__ . '/../../bin/templatemap_generator.php %s', $args);
+
+        /** @psalm-suppress ForbiddenCode */
+        $output  = `$command`; // phpcs:ignore
+
+        self::assertIsString($output);
+
+        return $output;
+    }
+
+    public function testThatTheTemplateMapGeneratorProducesTheExpectedOutput(): void
+    {
+        $output = $this->commandOutput('templates');
+
+        self::assertStringStartsWith('<?php' . PHP_EOL . 'return [', $output);
+        self::assertStringEndsWith('];', $output);
+        self::assertStringContainsString("'one' => __DIR__ . '/templates/one.phtml',", $output);
+        self::assertStringContainsString("'two' => __DIR__ . '/templates/two.phtml',", $output);
+
+        self::assertStringNotContainsString('ignored.txt', $output);
+        self::assertStringNotContainsString('ignored', $output);
+    }
+
+    public function testThatHelpTextWillBeOutputWhenRequested(): void
+    {
+        $output = $this->commandOutput('-h');
+        self::assertStringContainsString('Generate template maps.', $output);
+
+        $output = $this->commandOutput('--help');
+        self::assertStringContainsString('Generate template maps.', $output);
+    }
+
+    public function testThatTheMapGeneratorAcceptsAListOfFileNames(): void
+    {
+        $output = $this->commandOutput('. some/foo.txt bar.phtml');
+        self::assertStringStartsWith('<?php' . PHP_EOL . 'return [', $output);
+        self::assertStringEndsWith('];', $output);
+        self::assertStringContainsString("'some/foo' => __DIR__ . '/some/foo.txt',", $output);
+        self::assertStringContainsString("'bar' => __DIR__ . '/bar.phtml',", $output);
+    }
+}
diff --git a/test/bin/templates/ignored.txt b/test/bin/templates/ignored.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/test/bin/templates/ignored/.gitkeep b/test/bin/templates/ignored/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/test/bin/templates/one.phtml b/test/bin/templates/one.phtml
new file mode 100644
index 000000000..e69de29bb
diff --git a/test/bin/templates/two.phtml b/test/bin/templates/two.phtml
new file mode 100644
index 000000000..e69de29bb