Range Operator Tests (#1486)

* Range Operator Tests

tests/PhpSpreadsheetTests/Calculation/Engine/RangeTest.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheetTests\Calculation\Engine;
+
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PHPUnit\Framework\TestCase;
+
+class RangeTest extends TestCase
+{
+    protected $spreadSheet;
+
+    protected function setUp(): void
+    {
+        $this->spreadSheet = new Spreadsheet();
+        $this->spreadSheet->getActiveSheet()
+            ->setCellValue('A1', 1)
+            ->setCellValue('B1', 2)
+            ->setCellValue('C1', 3)
+            ->setCellValue('A2', 4)
+            ->setCellValue('B2', 5)
+            ->setCellValue('C2', 6)
+            ->setCellValue('A3', 7)
+            ->setCellValue('B3', 8)
+            ->setCellValue('C3', 9);
+    }
+
+    /**
+     * @dataProvider providerRangeEvaluation
+     *
+     * @param mixed $formula
+     * @param int $expectedResult
+     */
+    public function testRangeEvaluation($formula, $expectedResult): void
+    {
+        $workSheet = $this->spreadSheet->getActiveSheet();
+        $workSheet->setCellValue('E1', $formula);
+
+        $actualRresult = $workSheet->getCell('E1')->getCalculatedValue();
+        self::assertSame($expectedResult, $actualRresult);
+    }
+
+    public function providerRangeEvaluation()
+    {
+        return[
+            ['=SUM(A1:B3,A1:C2)', 48],
+            ['=SUM(A1:B3 A1:C2)', 12],
+            ['=SUM(A1:A3,C1:C3)', 30],
+            ['=SUM(A1:A3 C1:C3)', 0],
+            ['=SUM(A1:B2,B2:C3)', 40],
+            ['=SUM(A1:B2 B2:C3)', 5],
+        ];
+    }
+}