Fix Colour stuff and add a test.

.styleci.yml

@@ -0,0 +1,5 @@
+preset: psr2
+
+disabled:
+    - unalign_double_arrow
+    - unalign_equals

.travis.yml

@@ -0,0 +1,16 @@
+cache:
+    directories:
+        - vendor
+
+language: php
+
+php:
+    - 7.2
+
+matrix:
+    fast_finish: true
+
+before_install:
+    - composer install
+
+script: ./vendor/bin/phpunit

README.md

@@ -1,6 +1,10 @@
 # Misuzu
+[![Build Status](https://api.travis-ci.org/flashwave/misuzu.svg)](https://travis-ci.org/flashwave/misuzu)
+[![StyleCI](https://styleci.io/repos/114177358/shield)](https://styleci.io/repos/114177358)
+[![CodeFactor](https://www.codefactor.io/repository/github/flashwave/misuzu/badge)](https://www.codefactor.io/repository/github/flashwave/misuzu)
+[![License](https://poser.pugx.org/flashwave/misuzu/license)](https://packagist.org/packages/flashwave/misuzu)
 
-## Requirement
+## Requirements
  - PHP 7.2
  - MySQL
  - Redis

composer.json

@@ -16,6 +16,9 @@
         "swiftmailer/swiftmailer": "~6.0",
         "erusev/parsedown": "~1.6"
     },
+    "require-dev": {
+        "phpunit/phpunit": "~6.0"
+    },
     "autoload": {
         "psr-4": {
             "Misuzu\\": "src/"

phpunit.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         bootstrap="misuzu.php"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false"
+         syntaxCheck="false">
+    <testsuites>
+        <testsuite name="Misuzu Tests">
+            <directory>./tests/</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>

src/Colour.php

@@ -23,9 +23,6 @@ class Colour {
             case 'blue':
                 return $this->rawValue & 0xFF;
 
-            case 'none':
-                return new static(self::INHERIT);
-
             case 'hex':
                 return dechex_pad($this->red) . dechex_pad($this->green) . dechex_pad($this->blue);
         }
@@ -95,10 +92,9 @@ class Colour {
         $hex = ltrim(strtolower($hex), '#');
         $hex_length = strlen($hex);
 
-        if ($hex_length == 3)
+        if ($hex_length === 3)
             $hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
-
-        if ($hex_length != 6)
+        elseif ($hex_length != 6)
             throw new \Exception('Invalid hex colour format! (find a more appropiate exception type)');
 
         return static::fromRGB(
@@ -108,6 +104,10 @@ class Colour {
         );
     }
 
+    public static function none(): Colour {
+        return new static(static::INHERIT);
+    }
+
     public function __toString() {
         return "#{$this->hex}";
     }

tests/ColourTest.php

@@ -0,0 +1,75 @@
+<?php
+use PHPUnit\Framework\TestCase;
+
+use Misuzu\Colour;
+
+class ColourTest extends TestCase {
+    public const RED_HEX6 = 67;
+    public const GREEN_HEX6 = 45;
+    public const BLUE_HEX6 = 23;
+    public const SSTR_HEX6 = '#432d17';
+    public const STR_HEX6 = '432d17';
+    public const RAW_HEX6 = 4402455;
+
+    public const RED_HEX3 = 51;
+    public const GREEN_HEX3 = 136;
+    public const BLUE_HEX3 = 221;
+    public const SSTR_HEX3 = '#38d';
+    public const STR_HEX3 = '3388dd';
+    public const RAW_HEX3 = 3377373;
+
+    public function testNone() {
+        $colour = Colour::none();
+
+        $this->assertTrue($colour->inherit);
+        $this->assertEquals($colour->raw, 0x40000000);
+        $this->assertEquals($colour->red, 0);
+        $this->assertEquals($colour->green, 0);
+        $this->assertEquals($colour->blue, 0);
+        $this->assertEquals($colour->hex, '000000');
+    }
+
+    public function testFromRaw() {
+        $colour = new Colour(static::RAW_HEX6);
+
+        $this->assertEquals($colour->hex, static::STR_HEX6);
+        $this->assertEquals($colour->raw, static::RAW_HEX6);
+        $this->assertEquals($colour->red, static::RED_HEX6);
+        $this->assertEquals($colour->green, static::GREEN_HEX6);
+        $this->assertEquals($colour->blue, static::BLUE_HEX6);
+        $this->assertFalse($colour->inherit);
+    }
+
+    public function testFromRGB() {
+        $colour = Colour::fromRGB(static::RED_HEX6, static::GREEN_HEX6, static::BLUE_HEX6);
+
+        $this->assertEquals($colour->hex, static::STR_HEX6);
+        $this->assertEquals($colour->raw, static::RAW_HEX6);
+        $this->assertEquals($colour->red, static::RED_HEX6);
+        $this->assertEquals($colour->green, static::GREEN_HEX6);
+        $this->assertEquals($colour->blue, static::BLUE_HEX6);
+        $this->assertFalse($colour->inherit);
+    }
+
+    public function testFromHex() {
+        $colour = Colour::fromHex(static::SSTR_HEX6);
+
+        $this->assertEquals($colour->hex, static::STR_HEX6);
+        $this->assertEquals($colour->raw, static::RAW_HEX6);
+        $this->assertEquals($colour->red, static::RED_HEX6);
+        $this->assertEquals($colour->green, static::GREEN_HEX6);
+        $this->assertEquals($colour->blue, static::BLUE_HEX6);
+        $this->assertFalse($colour->inherit);
+    }
+
+    public function testFromHex3() {
+        $colour = Colour::fromHex(static::SSTR_HEX3);
+
+        $this->assertEquals($colour->hex, static::STR_HEX3);
+        $this->assertEquals($colour->raw, static::RAW_HEX3);
+        $this->assertEquals($colour->red, static::RED_HEX3);
+        $this->assertEquals($colour->green, static::GREEN_HEX3);
+        $this->assertEquals($colour->blue, static::BLUE_HEX3);
+        $this->assertFalse($colour->inherit);
+    }
+}