Merge Reader and Writer entities

Merged Cell/Row/Style entities

tests/Spout/Common/Entity/CellTest.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace Box\Spout\Common\Entity;
+
+class CellTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @return void
+     */
+    public function testValidInstance()
+    {
+        $this->assertInstanceOf(Cell::class, new Cell('cell'));
+    }
+
+    /**
+     * @return void
+     */
+    public function testCellTypeNumeric()
+    {
+        $this->assertTrue((new Cell(0))->isNumeric());
+        $this->assertTrue((new Cell(1))->isNumeric());
+    }
+
+    /**
+     * @return void
+     */
+    public function testCellTypeString()
+    {
+        $this->assertTrue((new Cell('String!'))->isString());
+    }
+
+    /**
+     * @return void
+     */
+    public function testCellTypeEmptyString()
+    {
+        $this->assertTrue((new Cell(''))->isEmpty());
+    }
+
+    /**
+     * @return void
+     */
+    public function testCellTypeEmptyNull()
+    {
+        $this->assertTrue((new Cell(null))->isEmpty());
+    }
+
+    /**
+     * @return void
+     */
+    public function testCellTypeBool()
+    {
+        $this->assertTrue((new Cell(true))->isBoolean());
+        $this->assertTrue((new Cell(false))->isBoolean());
+    }
+
+    /**
+     * @return void
+     */
+    public function testCellTypeError()
+    {
+        $this->assertTrue((new Cell([]))->isError());
+    }
+}