first commit

tests/functional/DecimalTest.php

@@ -0,0 +1,43 @@
+<?php
+
+class DecimalTest extends DatabaseTestCase
+{
+    public function testMax()
+    {
+        $first = toDecimal('1.2');
+        $second = toDecimal('1.5');
+
+        $this->assertEquals($second, Decimal::max($first, $second));
+    }
+
+    public function testDecimalComma()
+    {
+        $this->assertEquals(toDecimal('1,2'), toDecimal('1.2'));
+    }
+
+    /**
+     * @dataProvider data_testCompare
+     */
+    public function testCompareSurprisinglyWorks($lower, $greater)
+    {
+        $this->assertTrue($lower < $greater);
+        $this->assertTrue($greater > $lower);
+        $this->assertFalse($lower > $greater);
+        $this->assertFalse($greater < $lower);
+    }
+
+    public function data_testCompare()
+    {
+        return [
+            [toDecimal('0.1'), toDecimal('0.2')],
+            [toDecimal('5'), toDecimal('10')],
+            [toDecimal('01'), toDecimal('2')],
+            [toDecimal('-1'), DecimalConstants::zero()],
+            [toDecimal('-2'), DecimalConstants::negativeOne()],
+            [\Decimal::fromString('-2', 8), \Decimal::fromString('-1', 4)],
+            [\Decimal::fromString('-2', 4), \Decimal::fromString('-1', 8)],
+            [toDecimal('0.1'), '0.2'],
+            ['0.1', toDecimal('0.2')],
+        ];
+    }
+}