Added unit test for View class

tests/ViewTest.php

@@ -0,0 +1,126 @@
+<?php
+
+namespace Tebe\Pvc\Tests;
+
+use ArgumentCountError;
+use LogicException;
+use PHPUnit\Framework\TestCase;
+use Tebe\Pvc\Exception\SystemException;
+use Tebe\Pvc\View\View;
+use Tebe\Pvc\View\ViewHelpers;
+use TypeError;
+
+class ViewTest extends TestCase
+{
+    /**
+     * @var View
+     */
+    private $view;
+
+    public function setUp()
+    {
+        $helpers = new ViewHelpers();
+        $helpers->add('upper', function ($str) {
+            return strtoupper($str);
+        });
+        $helpers->add('lower', function ($str) {
+            return strtolower($str);
+        });
+        $this->view = new View(__DIR__ . '/resources/views', $helpers);
+    }
+
+    public function testConstructorException1()
+    {
+        $this->expectException(SystemException::class);
+        new View(__DIR__ . '/not-existing-path', new ViewHelpers());
+    }
+
+    public function testConstructorException2()
+    {
+        $this->expectException(ArgumentCountError::class);
+        new View();
+    }
+
+    public function testConstructorException3()
+    {
+        $this->expectException(TypeError::class);
+        new View(__DIR__ . '/resources/views', false);
+    }
+
+    public function testRender()
+    {
+        // render without params
+        $testValue = $this->view->render('index');
+        $this->assertEquals('Output from view "index"', $testValue);
+
+        // render with params
+        $testValue = $this->view->render('index/vars', [
+            'int' => 123,
+            'string' => 'ABC'
+        ]);
+        $this->assertEquals("Output from view \"index/vars\"<br>\n123<br>\nABC", $testValue);
+
+        // file not exist
+        $this->expectException(SystemException::class);
+        $this->view->render('not-existing-view');
+    }
+
+    public function testFileExist()
+    {
+        // existing view
+        $testValue = $this->view->fileExist('index/vars');
+        $this->assertEquals(true, $testValue);
+
+        // not existing view
+        $testValue = $this->view->fileExist('not-existing-view');
+        $this->assertEquals(false, $testValue);
+    }
+
+    public function testGetViewsPath()
+    {
+        $testValue = $this->view->getViewsPath();
+        $this->assertEquals(__DIR__ . '/resources/views', $testValue);
+    }
+
+    public function testCall()
+    {
+        $upper = $this->view->upper('foo');
+        $this->assertEquals('FOO', $upper);
+
+        $lower = $this->view->upper('BAR');
+        $this->assertEquals('BAR', $lower);
+
+        $this->expectException(LogicException::class);
+        $this->view->notExisting();
+    }
+
+    public function testData()
+    {
+        // __set / __get
+        $boolVal = true;
+        $this->view->boolVal = $boolVal;
+        $this->assertEquals($boolVal, $this->view->boolVal);
+
+        $arrayVal = ['a', 'b', 'c'];
+        $this->view->arrayVal = $arrayVal;
+        $this->assertEquals($arrayVal, $this->view->arrayVal);
+
+        $intVal = 123;
+        $this->view->intVal = $intVal;
+        $this->assertEquals($intVal, $this->view->intVal);
+
+        $stringVal = 'abc';
+        $this->view->stringVal = $stringVal;
+        $this->assertEquals($stringVal, $this->view->stringVal);
+
+        // __isset / __unset
+        $boolVal = isset($this->view->boolVal);
+        $this->assertEquals(true, $boolVal);
+        unset($this->view->boolVal);
+        $boolVal = isset($this->view->boolVal);
+        $this->assertEquals(false, $boolVal);
+
+        $nullVal = $this->view->boolVal;
+        $this->assertEquals(null, $nullVal);
+    }
+}

tests/resources/views/index.php

@@ -0,0 +1 @@
+<?='Output from view "index"' ?>

tests/resources/views/index/vars.php

@@ -0,0 +1,3 @@
+<?='Output from view "index/vars"' ?><br>
+<?=$int?><br>
+<?=$string?>

tests/resources/views/layouts/default.php

@@ -0,0 +1,3 @@
+<div>Header</div>
+<?php echo $content ?>
+<div>Footer</div>