Unit Tests for RANDARRAY()

Author: MarkBaker

tests/PhpSpreadsheetTests/Calculation/Functions/MathTrig/RandArrayTest.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheetTests\Calculation\Functions\MathTrig;
+
+use PhpOffice\PhpSpreadsheet\Calculation\Functions;
+use PhpOffice\PhpSpreadsheet\Calculation\MathTrig;
+
+class RandArrayTest extends AllSetupTeardown
+{
+    public function testRANDARRAYInteger(): void
+    {
+        $rows = 3;
+        $cols = 2;
+        $min = -5;
+        $max = 5;
+
+        $result = MathTrig\Random::randArray($rows, $cols, $min, $max, true);
+        self::assertIsArray($result);
+        self::assertSame($rows, count($result));
+        self::assertSame($cols, count($result[0]));
+
+        $values = Functions::flattenArray($result);
+        array_walk(
+            $values,
+            function ($value) use ($min, $max) {
+                self::assertIsInt($value);
+                self::assertTrue($value >= $min && $value <= $max);
+            }
+        );
+    }
+
+    public function testRANDARRAYFloat(): void
+    {
+        $rows = 3;
+        $cols = 2;
+        $min = -2;
+        $max = 2;
+
+        $result = MathTrig\Random::randArray($rows, $cols, $min, $max, false);
+        self::assertIsArray($result);
+        self::assertSame($rows, count($result));
+        self::assertSame($cols, count($result[0]));
+
+        $values = Functions::flattenArray($result);
+        array_walk(
+            $values,
+            function ($value) use ($min, $max) {
+                self::assertIsFloat($value);
+                self::assertTrue($value >= $min && $value <= $max);
+            }
+        );
+    }
+
+    public function testRANDARRAYException(): void
+    {
+        $rows = 3;
+        $cols = 2;
+        $min = 2;
+        $max = -2;
+
+        $result = MathTrig\Random::randArray($rows, $cols, $min, $max, false);
+        self::assertSame(Functions::VALUE(), $result);
+    }
+}