First Local Commit - After Clean up.

Signed-off-by: Rick Hays <rhays@haysgang.com>

tests/_support/Language/MockLanguage.php

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+<?php namespace Tests\Support\Language;
+
+use CodeIgniter\Language\Language;
+
+class MockLanguage extends Language
+{
+
+	/**
+	 * Stores the data that should be
+	 * returned by the 'requireFile()' method.
+	 *
+	 * @var mixed
+	 */
+	protected $data;
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Sets the data that should be returned by the
+	 * 'requireFile()' method to allow easy overrides
+	 * during testing.
+	 *
+	 * @param array       $data
+	 * @param string      $file
+	 * @param string|null $locale
+	 *
+	 * @return $this
+	 */
+	public function setData(string $file, array $data, string $locale = null)
+	{
+		$this->language[$locale ?? $this->locale][$file] = $data;
+
+		return $this;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Provides an override that allows us to set custom
+	 * data to be returned easily during testing.
+	 *
+	 * @param string $path
+	 *
+	 * @return array|mixed
+	 */
+	protected function requireFile(string $path): array
+	{
+		return $this->data ?? [];
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Arbitrarily turnoff internationalization support for testing
+	 */
+	public function disableIntlSupport()
+	{
+		$this->intlSupport = false;
+	}
+
+}

tests/_support/Language/SecondMockLanguage.php

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+<?php namespace Tests\Support\Language;
+
+use CodeIgniter\Language\Language;
+
+class SecondMockLanguage extends Language
+{
+	//--------------------------------------------------------------------
+
+	/**
+	 * Expose the protected *load* method
+	 */
+	public function loadem(string $file, string $locale = 'en', bool $return = false)
+	{
+		return $this->load($file, $locale, $return);
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Expose the loaded language files
+	 */
+	public function loaded(string $locale = 'en')
+	{
+		return $this->loadedFiles[$locale];
+	}
+
+}

tests/_support/Language/ab-CD/Allin.php

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+<?php
+// seven wonders of the ancient world
+return [
+   'one' => 'Pyramid of Giza',
+   'tre' => 'Colossus of Rhodes',
+   'fiv' => 'Temple of Artemis',
+   'sev' => 'Hanging Gardens of Babylon',
+];

tests/_support/Language/ab/Allin.php

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+<?php
+// seven deadly sins
+return [
+   'two' => 'gluttony',
+   'tre' => 'greed',
+   'six' => 'envy',
+   'sev' => 'pride',
+];

tests/_support/Language/en-ZZ/More.php

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+<?php
+return [
+   'strongForce' => 'These are not the droids you are looking for',
+   'notaMoon'    => "It's made of cheese",
+   'wisdom'      => 'There is no try',
+];

tests/_support/Language/en/Allin.php

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+<?php
+// 12 days of Christmas
+return [
+   'for' => 'four calling birds',
+   'fiv' => 'five golden rings',
+   'six' => 'six geese a laying',
+   'sev' => 'seven swans a swimming',
+];

tests/_support/Language/en/Core.php

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+<?php
+/**
+ * Core language strings.
+ *
+ * @package    CodeIgniter
+ * @author     CodeIgniter Dev Team
+ * @copyright  2014-2018 British Columbia Institute of Technology (https://bcit.ca/)
+ * @license    https://opensource.org/licenses/MIT	MIT License
+ * @link       https://codeigniter.com
+ * @since      Version 4.0.0
+ * @filesource
+ *
+ * @codeCoverageIgnore
+ */
+
+// looking for a system message not likely to be part of unit testing
+return [
+   'missingExtension' => '{0} extension could not be found.',
+   'bazillion'        => 'billions and billions', // adds a new setting
+];

tests/_support/Language/en/More.php

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+<?php
+
+return [
+   'strongForce' => 'These are not the droids you are looking for',
+   'notaMoon'    => "That's no moon... it's a space station",
+   'cannotMove'  => 'I have a very bad feeling about this',
+];

tests/_support/Language/ru/Language.php

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+<?php
+
+return [
+   'languageGetLineInvalidArgumentException' => 'Whatever this would be, translated',
+];