feat: add assert float equals

adhocore · adhocore · commit bd6328605801 · 2019-02-27T18:32:49.000+07:00
diff --git 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)));
+    }
 }

Original file line number	Diff line number	Diff line change
`@@ -13,6 +13,8 @@`
`13`	`13`
`14`	`14`	`trait Asserts`
`15`	`15`	`{`
	`16`	`+ const DEFAULT_PRECISION = 6;`
	`17`	`+`
`16`	`18`	`public function assertJsonSubset($expected, $actual, string $message = null)`
`17`	`19`	`{`
`18`	`20`	`$actual = \json_encode($actual);`
`@@ -31,4 +33,20 @@ public function assertJsonSubsets($expected, /* more expected ...*/ $actual)`
`31`	`33`	`$this->assertJsonSubset($expect, $actual, "Data set #$i: ");`
`32`	`34`	`}`
`33`	`35`	`}`
	`36`	`+`
	`37`	`+ public function assertFloatEquals(float $expected, float $actual, int $precision = null, string $message = null)`
	`38`	`+ {`
	`39`	`+ $precision = $precision ?? static::DEFAULT_PRECISION;`
	`40`	`+`
	`41`	`+ if (\function_exists('bccomp')) {`
	`42`	`+ $this->assertSame(0, \bccomp($expected, $actual, $precision), $message);`
	`43`	`+`
	`44`	`+ return;`
	`45`	`+ }`
	`46`	`+`
	`47`	`+ $expected = \round($expected, $precision);`
	`48`	`+ $actual = \round($actual, $precision);`
	`49`	`+`
	`50`	`+ $this->assertEquals($expected, $actual, $message, \pow(10, 0 - \abs($precision)));`
	`51`	`+ }`
`34`	`52`	`}`