Add with ratio factory method to Rate (#12)

* Add Rate::withRatio

* Remove old badges

* Remove coveralls config

* Fix CHANGELOG

Author: slavcodev

.coveralls.yml

@@ -16,11 +16,36 @@ Security - in case of vulnerabilities.
 
 ## [Unreleased]
 
-_TBD_
+### Changed
+
++ Migrated CI from **Travis CI** to **GitHub Actions**. 
++ Upgraded minimum PHP version to v7.3. 
+
+### Added
+
++ Added `Rate::withRatio` factory method to create modified value with specific ratio.
++ Added static analyzer into CI flow.
+
+## 1.0.3 (2019-12-05)
+
+### Fixed
+
++ Reverted removal of deprecated currencies. See [#6](https://github.com/Rebilly/money/pull/6) for details.
+
+### Added
+
++ Added a property to `Currency` showing that it is deprecated. 
+
+## 1.0.2 (2019-10-21)
+
+### Changed
+
++ Updated currencies list: remove deprecated, added new, rename code of others. See [#5](https://github.com/Rebilly/money/pull/5) for details.
 
 ## 1.0.1 (2019-03-05)
 
 ### Fixed
+
 + Fixed pretty-print formatting of negative amount of money
 
 ## 1.0.0 (2018-12-08)

CHANGELOG.md

@@ -1,7 +1,5 @@
 [![Software License][ico-license]][link-license]
 [![Latest Version on Packagist][ico-version]][link-packagist]
-[![Build Status][ico-travis]][link-travis]
-[![Coverage Status][ico-coveralls]][link-coveralls]
 [![GitHub Actions status][ico-github-actions]][link-github]
 
 # Money
@@ -248,11 +246,7 @@ The Money library is open-sourced under the [MIT License](./LICENSE) distributed
 [ico-github-actions]: https://github.com/Rebilly/money/workflows/Tests/badge.svg
 [ico-version]: https://img.shields.io/packagist/v/Rebilly/money.svg?style=flat-square
 [ico-license]: https://img.shields.io/badge/License-MIT-blue.svg?style=flat-square
-[ico-travis]: https://img.shields.io/travis/Rebilly/money/master.svg?style=flat-square
-[ico-coveralls]: https://img.shields.io/coveralls/github/Rebilly/money.svg?style=flat-square
 
 [link-github]: https://github.com/Rebilly/money
 [link-packagist]: https://packagist.org/packages/Rebilly/money
 [link-license]: LICENSE
-[link-travis]: https://travis-ci.org/Rebilly/money
-[link-coveralls]: https://coveralls.io/github/Rebilly/money?branch=master

README.md

@@ -81,6 +81,11 @@ public function convert(Money $money): Money
         return $money->convert($this->currencyPair->getQuoteCurrency(), $this->ratio, PHP_ROUND_HALF_UP);
     }
 
+    public function withRatio(float $ratio): self
+    {
+        return new self($this->getCurrencyPair(), $this->getDate(), $ratio);
+    }
+
     /**
      * {@inheritdoc}
      */

src/Exchange/Rate.php

@@ -31,6 +31,22 @@ public function testCanBeConstructed()
         return $rate;
     }
 
+    /**
+     * @depends testCanBeConstructed
+     */
+    public function testCanBeRecreatedWithNewRatio(Rate $rate)
+    {
+        $ratio = $rate->getRatio() * 2;
+        $mutatedRatio = $rate->withRatio($ratio);
+
+        self::assertNotSame($rate, $mutatedRatio);
+        self::assertSame($rate->getCurrencyPair(), $mutatedRatio->getCurrencyPair());
+        self::assertSame($rate->getDate(), $mutatedRatio->getDate());
+        self::assertSame($ratio, $mutatedRatio->getRatio());
+
+        return $rate;
+    }
+
     /**
      * @depends testCanBeConstructed
      *