feat: add support for toHaveMethod and toHaveMethods

tests/Features/Expect/toHaveMethods.php

@@ -0,0 +1,30 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+$object = new class
+{
+    public function foo(): void
+    {
+    }
+
+    public function bar(): void
+    {
+    }
+};
+
+test('pass', function () use ($object) {
+    expect($object)->toHaveMethods(['foo', 'bar']);
+});
+
+test('failures', function () use ($object) {
+    expect($object)->toHaveMethods(['foo', 'bar', 'baz']);
+})->throws(ExpectationFailedException::class);
+
+test('failures with custom message', function () use ($object) {
+    expect($object)->toHaveMethods(['foo', 'bar', 'baz'], 'oh no!');
+})->throws(ExpectationFailedException::class, 'oh no!');
+
+test('not failures', function () use ($object) {
+    expect($object)->not->toHaveMethods(['foo', 'bar']);
+})->throws(ExpectationFailedException::class);