bug #26781 [Form] Fix precision of MoneyToLocalizedStringTransformer'…

…s divisions on transform() (syastrebov)

This PR was merged into the 2.7 branch.

Discussion
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[Form] Fix precision of MoneyToLocalizedStringTransformer's divisions on transform()

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | no
| License       | MIT
| Doc PR        |

Related issue symfony/symfony#21026.
Previous PR symfony/symfony#24036.
Similar fix for `transform()` method.

Commits
-------

f94b7aadd3 fix rounding from string

Tests/Extension/Core/DataTransformer/MoneyToLocalizedStringTransformerTest.php

@@ -78,6 +78,16 @@ public function testFloatToIntConversionMismatchOnReversTransform()
         $transformer = new MoneyToLocalizedStringTransformer(null, null, null, 100);
         IntlTestHelper::requireFullIntl($this, false);
         \Locale::setDefault('de_AT');
+
         $this->assertSame(3655, (int) $transformer->reverseTransform('36,55'));
     }
+
+    public function testFloatToIntConversionMismatchOnTransform()
+    {
+        $transformer = new MoneyToLocalizedStringTransformer(null, null, MoneyToLocalizedStringTransformer::ROUND_DOWN, 100);
+        IntlTestHelper::requireFullIntl($this, false);
+        \Locale::setDefault('de_AT');
+
+        $this->assertSame('10,20', $transformer->transform(1020));
+    }
 }