New method: hasNonZeroFractionalPart()

brick · Aug 20, 2018 · e599ac0 · e599ac0
1 parent a92494c
commit e599ac0
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Showing 2 changed files with 36 additions and 0 deletions.
diff --git a/src/BigDecimal.php b/src/BigDecimal.php
@@ -623,6 +623,16 @@ public function getFractionalPart() : string
         return substr($value, -$this->scale);
     }
 
+    /**
+     * Returns whether this decimal number has a non-zero fractional part.
+     *
+     * @return bool
+     */
+    public function hasNonZeroFractionalPart() : bool
+    {
+        return $this->getFractionalPart() !== str_repeat('0', $this->scale);
+    }
+
     /**
      * {@inheritdoc}
      */

diff --git a/tests/BigDecimalTest.php b/tests/BigDecimalTest.php
@@ -2044,6 +2044,32 @@ public function providerGetFractionalPart()
         ];
     }
 
+    /**
+     * @dataProvider providerHasNonZeroFractionalPart
+     *
+     * @param string $number                   The number to test.
+     * @param bool   $hasNonZeroFractionalPart The expected return value.
+     */
+    public function testHasNonZeroFractionalPart($number, $hasNonZeroFractionalPart)
+    {
+        $this->assertSame($hasNonZeroFractionalPart, BigDecimal::of($number)->hasNonZeroFractionalPart());
+    }
+
+    /**
+     * @return array
+     */
+    public function providerHasNonZeroFractionalPart()
+    {
+        return [
+            ['1', false],
+            ['1.0', false],
+            ['1.01', true],
+            ['-123456789', false],
+            ['-123456789.0000000000000000000000000000000000000000000000000000000', false],
+            ['-123456789.00000000000000000000000000000000000000000000000000000001', true]
+        ];
+    }
+
     /**
      * @dataProvider providerToBigInteger
      *