Put asserts in proper place

Plugin.php

@@ -10,6 +10,7 @@ class Plugin implements PluginEntryPointInterface
     /** @return void */
     public function __invoke(RegistrationInterface $psalm, SimpleXMLElement $config = null)
     {
+    	$psalm->addStubFile(__DIR__ . '/stubs/Assert.php');
         $psalm->addStubFile(__DIR__ . '/stubs/TestCase.php');
     }
 }

composer.json

@@ -17,7 +17,9 @@
         "squizlabs/php_codesniffer": "^3.3"
     },
     "extra": {
-        "pluginClass": "Psalm\\PhpUnitPlugin\\Plugin"
+        "psalm": {
+            "pluginClass": "Psalm\\PhpUnitPlugin\\Plugin"
+        }
     },
     "autoload": {
         "psr-4": {

stubs/Assert.php

@@ -0,0 +1,94 @@
+<?php
+
+namespace PHPUnit\Framework;
+
+abstract class Assert
+{
+    /**
+     * Asserts that a variable is of a given type.
+     *
+     * @param class-string $expected
+     * @param mixed  $actual
+     * @param string $message
+     *
+     * @template T
+     * @template-typeof T $expected
+     * @psalm-assert T $actual
+     */
+    public static function assertInstanceOf($expected, $actual, $message = '') {}
+
+    /**
+     * Asserts that a variable is of a given type.
+     *
+     * @param class-string $expected
+     * @param mixed  $actual
+     * @param string $message
+     *
+     * @template T
+     * @template-typeof T $expected
+     * @psalm-assert !T $actual
+     */
+    public static function assertNotInstanceOf($expected, $actual, $message = '') {}
+
+    /**
+     * Asserts that a condition is true.
+     *
+     * @param bool   $condition
+     * @param string $message
+     *
+     * @throws AssertionFailedError
+     * @psalm-assert true $actual
+     */
+    public static function assertTrue($condition, $message = '') {}
+
+    /**
+     * Asserts that a condition is not true.
+     *
+     * @param bool   $condition
+     * @param string $message
+     *
+     * @throws AssertionFailedError
+     * @psalm-assert !true $actual
+     */
+    public static function assertNotTrue($condition, $message = '') {}
+
+    /**
+     * Asserts that a condition is false.
+     *
+     * @param bool   $condition
+     * @param string $message
+     *
+     * @throws AssertionFailedError
+     * @psalm-assert false $actual
+     */
+    public static function assertFalse($condition, $message = '') {}
+
+    /**
+     * Asserts that a condition is not false.
+     *
+     * @param bool   $condition
+     * @param string $message
+     *
+     * @throws AssertionFailedError
+     * @psalm-assert !false $actual
+     */
+    public static function assertNotFalse($condition, $message = '') {}
+
+    /**
+     * Asserts that a variable is null.
+     *
+     * @param mixed  $actual
+     * @param string $message
+     * @psalm-assert null $actual
+     */
+    public static function assertNull($actual, $message = '') {}
+
+    /**
+     * Asserts that a variable is not null.
+     *
+     * @param mixed  $actual
+     * @param string $message
+     * @psalm-assert !null $actual
+     */
+    public static function assertNotNull($actual, $message = '') {}
+}

stubs/TestCase.php

@@ -13,92 +13,4 @@ abstract class TestCase extends Assert implements Test, SelfDescribing
      * @return MockObject&T
      */
     public function createMock($class) {}
-
-    /**
-     * Asserts that a variable is of a given type.
-     *
-     * @param class-string $expected
-     * @param mixed  $actual
-     * @param string $message
-     *
-     * @template T
-     * @template-typeof T $expected
-     * @psalm-assert T $actual
-     */
-    public static function assertInstanceOf($expected, $actual, $message = '') {}
-
-    /**
-     * Asserts that a variable is of a given type.
-     *
-     * @param class-string $expected
-     * @param mixed  $actual
-     * @param string $message
-     *
-     * @template T
-     * @template-typeof T $expected
-     * @psalm-assert !T $actual
-     */
-    public static function assertNotInstanceOf($expected, $actual, $message = '') {}
-
-    /**
-     * Asserts that a condition is true.
-     *
-     * @param bool   $condition
-     * @param string $message
-     *
-     * @throws AssertionFailedError
-     * @psalm-assert true $actual
-     */
-    public static function assertTrue($condition, $message = '') {}
-
-    /**
-     * Asserts that a condition is not true.
-     *
-     * @param bool   $condition
-     * @param string $message
-     *
-     * @throws AssertionFailedError
-     * @psalm-assert !true $actual
-     */
-    public static function assertNotTrue($condition, $message = '') {}
-
-    /**
-     * Asserts that a condition is false.
-     *
-     * @param bool   $condition
-     * @param string $message
-     *
-     * @throws AssertionFailedError
-     * @psalm-assert false $actual
-     */
-    public static function assertFalse($condition, $message = '') {}
-
-    /**
-     * Asserts that a condition is not false.
-     *
-     * @param bool   $condition
-     * @param string $message
-     *
-     * @throws AssertionFailedError
-     * @psalm-assert !false $actual
-     */
-    public static function assertNotFalse($condition, $message = '') {}
-
-    /**
-     * Asserts that a variable is null.
-     *
-     * @param mixed  $actual
-     * @param string $message
-     * @psalm-assert null $actual
-     */
-    public static function assertNull($actual, $message = '') {}
-
-    /**
-     * Asserts that a variable is not null.
-     *
-     * @param mixed  $actual
-     * @param string $message
-     * @psalm-assert !null $actual
-     */
-    public static function assertNotNull($actual, $message = '') {}
 }