Cover tests with Psalm and fix errors (#183)

* Cover tests with Psalm and fix errors

* Allow missing files

* Fix UnusedProperty

* Actual fix plus no-cache

composer.json

@@ -23,7 +23,7 @@
   "scripts": {
     "phpcs": "phpcs",
     "phpcs-fix": "phpcbf",
-    "psalm": "psalm.phar",
+    "psalm": "psalm.phar --no-cache",
     "test": "phpunit",
     "test-coverage": "phpunit --coverage-clover ./coverage/phpunit/clover.xml"
   },

psalm.xml

@@ -11,16 +11,26 @@
     xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
 >
     <projectFiles>
-        <file name="functions.php"/>
-        <file name="remote-data-blocks.php"/>
-        <directory name="inc/"/>
+        <file name="*.php"/>
+        <directory name="*"/>
+        <ignoreFiles allowMissingFiles="true">
+            <directory name="build/"/>
+            <directory name="example/"/>
+            <directory name="node_modules/"/>
+            <directory name="vendor/"/>
+        </ignoreFiles>
     </projectFiles>
     <issueHandlers>
         <PossiblyUnusedReturnValue errorLevel="suppress"/>
         <PossiblyUnusedMethod errorLevel="suppress"/>
+        <UnusedClass>
+            <errorLevel type="suppress">
+                <directory name="tests/" />
+            </errorLevel>
+        </UnusedClass>
     </issueHandlers>
     <stubs>
         <file name="vendor/php-stubs/wordpress-stubs/wordpress-stubs.php"/>
         <file name="remote-data-blocks.php"/>
     </stubs>
-</psalm>
+</psalm>

tests/inc/Config/QueryRunnerTest.php

@@ -358,8 +358,6 @@ public function testExecuteSuccessfulResponseWithObjectResponseData() {
 		$response_body = $this->createMock( \Psr\Http\Message\StreamInterface::class );
 		$response      = new Response( 200, [], $response_body );
 
-		$response = new Response( 200, [], $response_body );
-
 		$this->http_client->method( 'request' )->willReturn( $response );
 
 		$response_data       = new \stdClass();

tests/inc/Mocks/MockValidator.php

@@ -6,13 +6,17 @@
 use WP_Error;
 
 class MockValidator implements ValidatorInterface {
+	/**
+	 * @psalm-suppress UnusedProperty
+	 */
 	private array $schema;
+
 	private bool $should_pass;
 
 	/**
 	 * Constructor.
-	 * 
-	 * @param array $schema
+	 *
+	 * @param array $schema      Validation schema.
 	 * @param bool  $should_pass Whether the validation should pass or fail.
 	 */
 	public function __construct( array $schema = [], bool $should_pass = true ) {

tests/inc/stubs.php

@@ -17,7 +17,7 @@ function esc_html( string $text ): string {
 	return $text;
 }
 
-function register_block_pattern( string $name, array $options ): void {
+function register_block_pattern( string $_name, array $_options ): void {
 	// Do nothing
 }
 
@@ -99,7 +99,7 @@ function get_page_by_path( string $path ): string {
 	return $path ?? 'fake WP_Post';
 }
 
-function add_rewrite_rule( string $regex, string $target, string $position ): void {
+function add_rewrite_rule( string $_regex, string $_target, string $_position ): void {
 	// Do nothing
 }
 
@@ -181,7 +181,7 @@ public function get_error_messages( $code = '' ) {
 		// Return all messages if no code specified.
 		if ( empty( $code ) ) {
 			$all_messages = array();
-			foreach ( (array) $this->errors as $code => $messages ) {
+			foreach ( (array) $this->errors as $_code => $messages ) {
 				$all_messages = array_merge( $all_messages, $messages );
 			}