Added missing test for FunctionReflector

test/unit/Reflector/FunctionReflectorTest.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace BetterReflectionTest\Reflector;
+
+use BetterReflection\Reflection\ReflectionFunction;
+use BetterReflection\Reflector\FunctionReflector;
+use BetterReflection\Reflector\Generic;
+use BetterReflection\SourceLocator\StringSourceLocator;
+
+/**
+ * @covers \BetterReflection\Reflector\FunctionReflector
+ */
+class FunctionReflectorTest extends \PHPUnit_Framework_TestCase
+{
+    public function testReflectProxiesToGenericReflectMethod()
+    {
+        $php = '<?php function foo() {}';
+
+        $reflector = new FunctionReflector(new StringSourceLocator($php));
+
+        $reflectionMock = $this->getMockBuilder(ReflectionFunction::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $genericReflectorMock = $this->getMockBuilder(Generic::class)
+            ->setMethods(['reflect'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $genericReflectorMock->expects($this->once())
+            ->method('reflect')
+            ->will($this->returnValue($reflectionMock));
+
+        $reflectorReflection = new \ReflectionObject($reflector);
+        $reflectorReflectorReflection = $reflectorReflection->getProperty('reflector');
+        $reflectorReflectorReflection->setAccessible(true);
+        $reflectorReflectorReflection->setValue($reflector, $genericReflectorMock);
+
+        $reflector->reflect('foo');
+    }
+}