diff --git a/.gitignore b/.gitignore
index bd03a951d..dc2fab1cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,7 +7,8 @@
 /runner.yml
 /phpunit.xml
 /docker-compose.*.yml
-.phpunit.result.cache
+/.phpunit.result.cache
+/.phpunit.cache/
 *.sql
 phpda.*
 .phpdoc*
diff --git a/composer.json b/composer.json
index e7e9ef491..d36f28e07 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
         "phpmd/phpmd": "^2.12",
         "phpstan/phpstan": "^1.10",
         "phpstan/phpstan-deprecation-rules": "^1.0",
-        "phpunit/phpunit": "^9.5",
+        "phpunit/phpunit": "^9.5 || ^10.0",
         "squizlabs/php_codesniffer": "^3.7"
     },
     "suggest": {
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index e5f212a60..019ec5874 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,18 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit
-    backupGlobals               = "true"
-    backupStaticAttributes      = "false"
-    colors                      = "true"
-    convertErrorsToExceptions   = "true"
-    convertNoticesToExceptions  = "true"
-    convertWarningsToExceptions = "true"
-    processIsolation            = "true"
-    stopOnFailure               = "false"
-    bootstrap                   = "vendor/autoload.php">
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.3/phpunit.xsd"
+    backupGlobals="true"
+    colors="true"
+    processIsolation="true"
+    stopOnFailure="false"
+    bootstrap="vendor/autoload.php">
     <php>
         <env name="CI" value="true"/>
         <env name="QA_WEBSITE_URL" value="http://web:8080" force="true"/>
         <env name="TOOLKIT_MOCK_BRANCH" value="0.0.2"/>
+        <env name="TOOLKIT_DEBUG_EXPECTATIONS" value="false"/>
         <env name="DRUPAL_DATABASE_NAME" value="drupal"/>
         <env name="DRUPAL_DATABASE_USERNAME" value="root"/>
         <env name="DRUPAL_DATABASE_HOST" value="mysql"/>
diff --git a/tests/AbstractTest.php b/tests/AbstractTest.php
index 801df0240..2ecbb0f45 100644
--- a/tests/AbstractTest.php
+++ b/tests/AbstractTest.php
@@ -156,6 +156,8 @@ public function runCommand(string $command, bool $simulate = true, bool $output
     /**
      * Helper function to debug the expectations and the content before assert.
      *
+     * To debug, set the variable TOOLKIT_DEBUG_EXPECTATIONS to true in the phpunit.xml file.
+     *
      * @param string $content
      *   Content to test.
      * @param array $expectations
@@ -163,29 +165,32 @@ public function runCommand(string $command, bool $simulate = true, bool $output
      */
     protected function debugExpectations(string $content, array $expectations)
     {
-        $debug = "\n-- Content --\n$content\n-- End Content --\n";
+        if (!getenv('TOOLKIT_DEBUG_EXPECTATIONS')) {
+            return;
+        }
+        $output = "\n-- Content --\n$content\n-- End Content --\n";
         foreach ($expectations as $expectation) {
             if (!empty($expectation['contains'])) {
-                $debug .= "-- Contains --\n{$expectation['contains']}\n-- End Contains --\n";
+                $output .= "-- Contains --\n{$expectation['contains']}\n-- End Contains --\n";
             }
             if (!empty($expectation['not_contains'])) {
-                $debug .= "-- NotContains --\n{$expectation['not_contains']}\n-- End NotContains --\n";
+                $output .= "-- NotContains --\n{$expectation['not_contains']}\n-- End NotContains --\n";
             }
             if (!empty($expectation['string_contains'])) {
-                $debug .= "-- String --\n{$expectation['string_contains']}\n-- End String --\n";
+                $output .= "-- String --\n{$expectation['string_contains']}\n-- End String --\n";
             }
             if (!empty($expectation['not_string_contains'])) {
-                $debug .= "-- NotString --\n{$expectation['not_string_contains']}\n-- End NotString --\n";
+                $output .= "-- NotString --\n{$expectation['not_string_contains']}\n-- End NotString --\n";
             }
             if (!empty($expectation['file_expected']) && !empty($expectation['file_actual'])) {
-                $debug .= "-- Files equal - expected --\n";
-                $debug .= file_get_contents($expectation['file_expected']);
-                $debug .= "\n-- END expected --\n-- Files equal - actual --\n";
-                $debug .= file_get_contents($expectation['file_actual']);
-                $debug .= "\n-- END actual --\n";
+                $output .= "-- Files equal - expected --\n";
+                $output .= file_get_contents($expectation['file_expected']);
+                $output .= "\n-- END expected --\n-- Files equal - actual --\n";
+                $output .= file_get_contents($expectation['file_actual']);
+                $output .= "\n-- END actual --\n";
             }
         }
-        echo $debug;
+        echo $output;
     }
 
     /**
@@ -219,7 +224,7 @@ protected function getClassLoader()
      * @return string
      *   The filepath of fixtures.
      */
-    protected function getFixtureRoot(): string
+    protected static function getFixtureRoot(): string
     {
         return __DIR__ . '/fixtures';
     }
@@ -233,9 +238,9 @@ protected function getFixtureRoot(): string
      * @return string
      *   The filepath of the sandbox file.
      */
-    protected function getFixtureFilepath(string $name): string
+    protected static function getFixtureFilepath(string $name): string
     {
-        return $this->getFixtureRoot() . '/' . $name;
+        return self::getFixtureRoot() . '/' . $name;
     }
 
     /**
@@ -247,9 +252,9 @@ protected function getFixtureFilepath(string $name): string
      * @return mixed|string
      *   A set of test data.
      */
-    protected function getFixtureContent(string $filepath)
+    protected static function getFixtureContent(string $filepath)
     {
-        return Yaml::parse(file_get_contents($this->getFixtureFilepath($filepath)));
+        return Yaml::parse(file_get_contents(self::getFixtureFilepath($filepath)));
     }
 
     /**
@@ -261,9 +266,9 @@ protected function getFixtureContent(string $filepath)
      * @return string
      *   The filepath of the sandbox file.
      */
-    protected function getSandboxFilepath(string $name): string
+    protected static function getSandboxFilepath(string $name): string
     {
-        return $this->getSandboxRoot() . '/' . $name;
+        return self::getSandboxRoot() . '/' . $name;
     }
 
     /**
@@ -272,9 +277,9 @@ protected function getSandboxFilepath(string $name): string
      * @return string
      *   The filepath of sandbox.
      */
-    protected function getSandboxRoot(): string
+    protected static function getSandboxRoot(): string
     {
-        return __DIR__ . '/sandbox/' . $this->getClassName();
+        return __DIR__ . '/sandbox/' . self::getClassName();
     }
 
     /**
@@ -283,23 +288,10 @@ protected function getSandboxRoot(): string
      * @return string
      *   The class name.
      */
-    protected function getClassName(): string
+    protected static function getClassName(): string
     {
         $class = explode('\\', static::class);
         return (string) end($class);
     }
 
-    /**
-     * Return the mock base url.
-     *
-     * @return string
-     *   The mock base url, defaults to web:8080.
-     */
-    public static function getMockBaseUrl(): string
-    {
-        return !empty(getenv('VIRTUAL_HOST'))
-            ? (string) getenv('VIRTUAL_HOST')
-            : 'web:8080';
-    }
-
 }
diff --git a/tests/Features/Commands/BlackfireCommandsTest.php b/tests/Features/Commands/BlackfireCommandsTest.php
index 056cab0c9..7925f8276 100644
--- a/tests/Features/Commands/BlackfireCommandsTest.php
+++ b/tests/Features/Commands/BlackfireCommandsTest.php
@@ -21,9 +21,9 @@ class BlackfireCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/blackfire.yml');
+        return self::getFixtureContent('commands/blackfire.yml');
     }
 
     /**
@@ -55,7 +55,7 @@ public function testBlackfire(string $command, array $config = [], array $resour
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/BuildCommandsTest.php b/tests/Features/Commands/BuildCommandsTest.php
index 989569740..43f0891bf 100644
--- a/tests/Features/Commands/BuildCommandsTest.php
+++ b/tests/Features/Commands/BuildCommandsTest.php
@@ -22,9 +22,9 @@ class BuildCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/build.yml');
+        return self::getFixtureContent('commands/build.yml');
     }
 
     /**
@@ -51,7 +51,7 @@ public function testBuild(string $command, array $config = [], array $resources
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/ComponentCheckCommandsTest.php b/tests/Features/Commands/ComponentCheckCommandsTest.php
index 8ff228f11..04692a589 100644
--- a/tests/Features/Commands/ComponentCheckCommandsTest.php
+++ b/tests/Features/Commands/ComponentCheckCommandsTest.php
@@ -22,9 +22,9 @@ class ComponentCheckCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/component-check.yml');
+        return self::getFixtureContent('commands/component-check.yml');
     }
 
     /**
@@ -58,7 +58,7 @@ public function testComponentCheck(string $command, array $config = [], string $
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/ConfigurationCommandsTest.php b/tests/Features/Commands/ConfigurationCommandsTest.php
index 29ae18076..0e9795465 100644
--- a/tests/Features/Commands/ConfigurationCommandsTest.php
+++ b/tests/Features/Commands/ConfigurationCommandsTest.php
@@ -24,9 +24,9 @@ class ConfigurationCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/configuration.yml');
+        return self::getFixtureContent('commands/configuration.yml');
     }
 
     /**
@@ -55,7 +55,7 @@ public function testConfiguration(string $command, array $config = [], array $re
         // Run command.
         $result = $this->runCommand($command, false);
 
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/DockerCommandsTest.php b/tests/Features/Commands/DockerCommandsTest.php
index a033ca886..cd4d5e295 100644
--- a/tests/Features/Commands/DockerCommandsTest.php
+++ b/tests/Features/Commands/DockerCommandsTest.php
@@ -22,9 +22,9 @@ class DockerCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider(): array
+    public static function dataProvider(): array
     {
-        return $this->getFixtureContent('commands/docker.yml');
+        return self::getFixtureContent('commands/docker.yml');
     }
 
     /**
@@ -33,9 +33,9 @@ public function dataProvider(): array
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProviderDockerComposeContent(): array
+    public static function dataProviderDockerComposeContent(): array
     {
-        return $this->getFixtureContent('commands/docker-compose-content.yml');
+        return self::getFixtureContent('commands/docker-compose-content.yml');
     }
 
     /**
diff --git a/tests/Features/Commands/DocumentationCommandsTest.php b/tests/Features/Commands/DocumentationCommandsTest.php
index 772c93743..4424d7e51 100644
--- a/tests/Features/Commands/DocumentationCommandsTest.php
+++ b/tests/Features/Commands/DocumentationCommandsTest.php
@@ -21,9 +21,9 @@ class DocumentationCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/documentation.yml');
+        return self::getFixtureContent('commands/documentation.yml');
     }
 
     /**
@@ -44,7 +44,7 @@ public function testDocumentation(string $command, array $resources = [], array
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/DrupalCommandsTest.php b/tests/Features/Commands/DrupalCommandsTest.php
index 8d080d85b..88a357da5 100644
--- a/tests/Features/Commands/DrupalCommandsTest.php
+++ b/tests/Features/Commands/DrupalCommandsTest.php
@@ -22,9 +22,9 @@ class DrupalCommandsTest extends AbstractTest
          * @return array
          *   An array of test data arrays with assertions.
          */
-        public function dataProvider()
+        public static function dataProvider()
         {
-            return $this->getFixtureContent('commands/drupal.yml');
+            return self::getFixtureContent('commands/drupal.yml');
         }
 
         /**
@@ -33,9 +33,9 @@ public function dataProvider()
          * @return array
          *   An array of test data arrays with assertions.
          */
-        public function dataProviderSettings()
+        public static function dataProviderSettings()
         {
-            return $this->getFixtureContent('commands/drupal-settings-setup.yml');
+            return self::getFixtureContent('commands/drupal-settings-setup.yml');
         }
 
         /**
@@ -69,7 +69,7 @@ public function testDrupalCommands(string $command, array $config = [], string $
 
             // Run command.
             $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+            $this->debugExpectations($result['output'], $expectations);
             // Assert expectations.
             foreach ($expectations as $expectation) {
                 $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/DumpCommandsTest.php b/tests/Features/Commands/DumpCommandsTest.php
index 158b3c510..e32246a7a 100644
--- a/tests/Features/Commands/DumpCommandsTest.php
+++ b/tests/Features/Commands/DumpCommandsTest.php
@@ -22,9 +22,9 @@ class DumpCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/dump.yml');
+        return self::getFixtureContent('commands/dump.yml');
     }
 
     /**
@@ -51,7 +51,7 @@ public function testDump(string $command, array $config = [], array $resources =
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/GitHooksCommandsTest.php b/tests/Features/Commands/GitHooksCommandsTest.php
index 8b449fe4a..1fb3174db 100644
--- a/tests/Features/Commands/GitHooksCommandsTest.php
+++ b/tests/Features/Commands/GitHooksCommandsTest.php
@@ -22,9 +22,9 @@ class GitHooksCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/git-hooks.yml');
+        return self::getFixtureContent('commands/git-hooks.yml');
     }
 
     protected function setUp(): void
@@ -62,7 +62,7 @@ public function testGitHooks(string $command, array $config = [], array $expecta
         // Run command.
         $result = $this->runCommand($command);
 
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/GitleaksCommandsTest.php b/tests/Features/Commands/GitleaksCommandsTest.php
index 776e28ac0..fe0e82be7 100644
--- a/tests/Features/Commands/GitleaksCommandsTest.php
+++ b/tests/Features/Commands/GitleaksCommandsTest.php
@@ -21,9 +21,9 @@ class GitleaksCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/gitleaks.yml');
+        return self::getFixtureContent('commands/gitleaks.yml');
     }
 
     /**
@@ -40,7 +40,7 @@ public function testGitleaks(string $command, array $expectations = [])
     {
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/InstallCommandsTest.php b/tests/Features/Commands/InstallCommandsTest.php
index a4460c7c3..3c728402e 100644
--- a/tests/Features/Commands/InstallCommandsTest.php
+++ b/tests/Features/Commands/InstallCommandsTest.php
@@ -22,9 +22,9 @@ class InstallCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/install.yml');
+        return self::getFixtureContent('commands/install.yml');
     }
 
     /**
@@ -51,7 +51,7 @@ public function testInstall(string $command, array $config = [], array $resource
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/LintCommandsTest.php b/tests/Features/Commands/LintCommandsTest.php
index e5cb23b23..22a3b6ce4 100644
--- a/tests/Features/Commands/LintCommandsTest.php
+++ b/tests/Features/Commands/LintCommandsTest.php
@@ -22,9 +22,9 @@ class LintCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/lint.yml');
+        return self::getFixtureContent('commands/lint.yml');
     }
 
     /**
@@ -51,7 +51,7 @@ public function testLint(string $command, array $config = [], array $resources =
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/ReleaseCommandsTest.php b/tests/Features/Commands/ReleaseCommandsTest.php
index 03336f04c..11908d2a4 100644
--- a/tests/Features/Commands/ReleaseCommandsTest.php
+++ b/tests/Features/Commands/ReleaseCommandsTest.php
@@ -21,9 +21,9 @@ class ReleaseCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/release.yml');
+        return self::getFixtureContent('commands/release.yml');
     }
 
     /**
@@ -50,7 +50,7 @@ public function testToolkitRelease(string $command, array $config = [], array $r
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/SymlinkProjectCommandsTest.php b/tests/Features/Commands/SymlinkProjectCommandsTest.php
index ebc9e1f7e..e02a1f682 100644
--- a/tests/Features/Commands/SymlinkProjectCommandsTest.php
+++ b/tests/Features/Commands/SymlinkProjectCommandsTest.php
@@ -16,9 +16,9 @@ class SymlinkProjectCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/drupal-symlink-project.yml');
+        return self::getFixtureContent('commands/drupal-symlink-project.yml');
     }
 
     /**
@@ -46,7 +46,7 @@ public function testSymlinkProjectCommands(string $command, array $config = [],
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/TestsCommandsTest.php b/tests/Features/Commands/TestsCommandsTest.php
index 45ce71779..0023d019b 100644
--- a/tests/Features/Commands/TestsCommandsTest.php
+++ b/tests/Features/Commands/TestsCommandsTest.php
@@ -22,9 +22,9 @@ class TestsCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/tests.yml');
+        return self::getFixtureContent('commands/tests.yml');
     }
 
     /**
@@ -51,7 +51,7 @@ public function testTests(string $command, array $config = [], array $resources
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Features/Commands/ToolCommandsTest.php b/tests/Features/Commands/ToolCommandsTest.php
index 40db340a7..7723f6d7b 100644
--- a/tests/Features/Commands/ToolCommandsTest.php
+++ b/tests/Features/Commands/ToolCommandsTest.php
@@ -22,9 +22,9 @@ class ToolCommandsTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/tool.yml');
+        return self::getFixtureContent('commands/tool.yml');
     }
 
     /**
@@ -52,7 +52,7 @@ public function testTool(string $command, array $config = [], array $resources =
         // Run command.
         $result = $this->runCommand($command);
 
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
@@ -65,9 +65,9 @@ public function testTool(string $command, array $config = [], array $resources =
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProviderOptsReview()
+    public static function dataProviderOptsReview()
     {
-        return $this->getFixtureContent('commands/opts-review.yml');
+        return self::getFixtureContent('commands/opts-review.yml');
     }
 
     /**
@@ -94,7 +94,7 @@ public function testOptsReview(string $command, array $config = [], array $resou
 
         // Run command.
         $result = $this->runCommand($command);
-//        $this->debugExpectations($result['output'], $expectations);
+        $this->debugExpectations($result['output'], $expectations);
         // Assert expectations.
         foreach ($expectations as $expectation) {
             $this->assertDynamic($result['output'], $expectation);
diff --git a/tests/Unit/ReplaceBlockTest.php b/tests/Unit/ReplaceBlockTest.php
index 68883676c..009a703f1 100644
--- a/tests/Unit/ReplaceBlockTest.php
+++ b/tests/Unit/ReplaceBlockTest.php
@@ -16,9 +16,9 @@ class ReplaceBlockTest extends AbstractTest
      * @return array
      *   An array of test data arrays with assertions.
      */
-    public function dataProvider()
+    public static function dataProvider()
     {
-        return $this->getFixtureContent('commands/replace-block.yml');
+        return self::getFixtureContent('commands/replace-block.yml');
     }
 
     /**
diff --git a/tests/fixtures/commands/documentation.yml b/tests/fixtures/commands/documentation.yml
index 24e832c41..584984fa5 100644
--- a/tests/fixtures/commands/documentation.yml
+++ b/tests/fixtures/commands/documentation.yml
@@ -1,8 +1,3 @@
-- command: 'toolkit:generate-documentation'
-  resources: []
-  expectations:
-    - contains: "[ERROR] Fail to download the phpDocumentor.phar file."
-
 - command: 'toolkit:generate-documentation --branch=docs'
   resources:
     - mkdir: docs