From bd63286058019daf380b59ffb4bd487236103fc7 Mon Sep 17 00:00:00 2001
From: Jitendra Adhikari <jiten.adhikary@gmail.com>
Date: Wed, 27 Feb 2019 18:32:49 +0700
Subject: [PATCH] feat: add assert float equals

---
 src/Asserts.php | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/Asserts.php b/src/Asserts.php
index 6504306..2bfa6aa 100644
--- a/src/Asserts.php
+++ b/src/Asserts.php
@@ -13,6 +13,8 @@
 
 trait Asserts
 {
+    const DEFAULT_PRECISION = 6;
+
     public function assertJsonSubset($expected, $actual, string $message = null)
     {
         $actual   = \json_encode($actual);
@@ -31,4 +33,20 @@ public function assertJsonSubsets($expected, /* more expected ...*/ $actual)
             $this->assertJsonSubset($expect, $actual, "Data set #$i: ");
         }
     }
+
+    public function assertFloatEquals(float $expected, float $actual, int $precision = null, string $message = null)
+    {
+        $precision = $precision ?? static::DEFAULT_PRECISION;
+
+        if (\function_exists('bccomp')) {
+            $this->assertSame(0, \bccomp($expected, $actual, $precision), $message);
+
+            return;
+        }
+
+        $expected  = \round($expected, $precision);
+        $actual    = \round($actual, $precision);
+
+        $this->assertEquals($expected, $actual, $message, \pow(10, 0 - \abs($precision)));
+    }
 }