Initial commit

    Generate iban code and make a initial test

.gitignore

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+/vendor
+composer.lock
+*.swp
+*.swo

composer.json

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+{
+    "name": "xafardero/generate-iban",
+    "description": "Generate the IBAN letter with a CCC",
+    "type": "library",
+    "require": {
+        "php": ">=5.5.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^5.5"
+    },
+    "autoload": {
+        "psr-4": {
+            "IbanGenerator\\": "src/"
+        }
+    },
+    "authors": [
+        {
+            "name": "xaf",
+            "email": "[email protected]"
+        }
+    ]
+}

phpunit.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit backupGlobals="false"
+    backupStaticAttributes="false"
+    bootstrap="vendor/autoload.php"
+    colors="true"
+    convertErrorsToExceptions="true"
+    convertNoticesToExceptions="true"
+    convertWarningsToExceptions="true"
+    processIsolation="false"
+    stopOnFailure="false"
+    syntaxCheck="false">
+    <testsuites>
+        <testsuite name="Demo Test Suite">
+            <directory suffix=".php">./tests/</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>

src/Iban.php

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+<?php
+
+namespace IbanGenerator;
+
+/**
+ * Class Iban
+ *
+ * Description
+ *
+ * @link
+ */
+class Iban
+{
+    /**
+     * Iban validation.
+     *
+     * @param string $paisCode
+     * @param mixed $control
+     *
+     * @return bool
+     */
+    public function generate($countryCode, $ccc)
+    {
+
+        $number = $ccc 
+                   . $this->code(substr($countryCode, 0, 1))
+                   . $this->code(substr($countryCode, 1, 1))
+                   . '00';
+
+        $checksum =  98 - bcmod($number, '97');
+
+        if (strlen($checksum) === 1) {
+            $checksum = '0' . $checksum;
+        }
+
+        return $countryCode . $checksum;
+    }
+
+    private function code($letter)
+    {
+        $tabla = [
+            'A' => '10',
+            'B' => '11',
+            'C' => '12',
+            'D' => '13',
+            'E' => '14',
+            'F' => '15',
+            'G' => '16',
+            'H' => '17',
+            'I' => '18',
+            'J' => '19',
+            'K' => '20',
+            'L' => '21',
+            'M' => '22',
+            'N' => '23',
+            'O' => '24',
+            'P' => '25',
+            'Q' => '26',
+            'R' => '27',
+            'S' => '28',
+            'T' => '29',
+            'U' => '30',
+            'V' => '31',
+            'W' => '32',
+            'X' => '33',
+            'Y' => '34',
+            'Z' => '35' 
+        ];
+
+        return $tabla[$letter];
+    }
+}

tests/CccTest.php

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+<?php
+
+use IbanGenerator\Iban;
+
+/**
+ * Ccc validator test.
+ *
+ * @link 
+ *
+ * Pattern:
+ * EEEE OOOO DC CCCCCCCCCC
+ */
+class IbanTest extends PHPUnit_Framework_TestCase
+{
+    public function testCorrectCcc()
+    {
+        $entidad = '0000';
+        $oficina = '0000';
+        $cuenta = '0000000000';
+        $dc = '00';
+
+        $ibanGenerator = new Iban();
+
+        $code = $ibanGenerator->generate('ES', $entidad . $oficina . $dc  . $cuenta);
+        $this->assertEquals($code, 'ES82');
+    }
+}