add Test\AssertTrait

src/Php/Test/AssertTrait.php

@@ -0,0 +1,63 @@
+<?php declare(strict_types=1);
+/**
+ * Copyright (C) php-fn. See LICENSE file for license details.
+ */
+
+namespace Php\Test;
+
+use Closure;
+use Exception;
+use PHPUnit\Framework\Assert;
+use PHPUnit\Framework\Constraint;
+
+/**
+ * @uses Assert::assertEquals
+ * @method static tryEquals(mixed|Exception $expected, mixed|Closure $actual, string $message = ''): void
+ * @uses Assert::assertNotEquals
+ * @method static tryNotEquals(mixed|Exception $expected, mixed|Closure $actual, string $message = ''): void
+ *
+ * @uses Assert::assertSame
+ * @method static trySame(mixed|Exception $expected, mixed|Closure $actual, string $message = ''): void
+ * @uses Assert::assertNotSame
+ * @method static tryNotSame(mixed|Exception $expected, mixed|Closure $actual, string $message = ''): void
+ */
+trait AssertTrait
+{
+    protected static function actual($actual, ...$args)
+    {
+        return $actual instanceof Closure ? $actual(...$args) : $actual;
+    }
+
+    public static function __callStatic(string $method, array $args)
+    {
+        $method = substr($method, 2);
+        $expected = $args[0] ?? null;
+        $actual = $args[1] ?? null;
+
+        if ($expected instanceof Exception) {
+            static::assertException(...$args);
+        } else {
+            Assert::${"assert$method"}($expected, static::actual($actual), ...array_slice($args, 2));
+        }
+    }
+
+    /**
+     * @param string|Exception $expected
+     * @param mixed|Closure    $actual
+     * @param string           $message
+     * @param mixed            ...$args
+     */
+    public static function assertException($expected, $actual, string $message = '', ...$args): void
+    {
+        if (!$expected instanceof Exception) {
+            $expected = new Exception($expected);
+        }
+        try {
+            $actual = static::actual($actual, ...$args);
+        } catch (Exception $caught) {
+            $actual = $caught;
+        }
+        (new Constraint\Exception(get_class($expected)))->evaluate($actual, $message);
+        (new Constraint\ExceptionMessage($expected->getMessage()))->evaluate($actual, $message);
+    }
+}