Func Condition

src/FuncCondition.php

@@ -0,0 +1,20 @@
+<?php
+namespace Packaged\Routing;
+
+use Packaged\Context\Context;
+
+class FuncCondition implements Condition
+{
+  /** @var callable */
+  protected $_func;
+
+  public function __construct(callable $func)
+  {
+    $this->_func = $func;
+  }
+
+  public function match(Context $context): bool
+  {
+    return ($this->_func)($context);
+  }
+}

tests/FuncConditionTest.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Packaged\Tests\Routing;
+
+use Packaged\Context\Context;
+use Packaged\Http\Request;
+use Packaged\Routing\FuncCondition;
+use PHPUnit\Framework\TestCase;
+
+class FuncConditionTest extends TestCase
+{
+  protected function _makeContext()
+  {
+    $ctx = new Context(
+      Request::create(
+        'https://localhost/?query1=val1&query2=val2&query3=val3',
+        'POST',
+        ['post1' => 'val1', 'post2' => 'val2', 'post3' => 'val3'],
+        ['cookie1' => 'val1', 'cookie2' => 'val2'],
+        [],
+        ['HTTPS' => 'on']
+      )
+    );
+
+    $ctx->meta()->set('a', 'b');
+    return $ctx;
+  }
+
+  public function testInstance()
+  {
+    $c = $this->_makeContext();
+    self::assertTrue((new FuncCondition(function (Context $ctx) { return $ctx->meta()->has('a'); }))->match($c));
+    self::assertFalse((new FuncCondition(function (Context $ctx) { return $ctx->meta()->has('b'); }))->match($c));
+  }
+}