testing

NuanceManagementWorkflow.php
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			<?php

			abstract class NuanceManagementWorkflow
			extends PhabricatorManagementWorkflow {

			protected function loadSource(PhutilArgumentParser $argv, $key) {
			$source = $argv->getArg($key);
			if (!strlen($source)) {
			throw new PhutilArgumentUsageException(
			pht(
			'Specify a source with %s.',
			'--'.$key));
			}

			$query = id(new NuanceSourceQuery())
			->setViewer($this->getViewer())
			->setRaisePolicyExceptions(true);

			$type_unknown = PhabricatorPHIDConstants::PHID_TYPE_UNKNOWN;

			if (ctype_digit($source)) {
			$kind = 'id';
			$query->withIDs(array($source));
			} else if (phid_get_type($source) !== $type_unknown) {
			$kind = 'phid';
			$query->withPHIDs($source);
			} else {
			$kind = 'name';
			$query->withNameNgrams($source);
			}

			$sources = $query->execute();

			if (!$sources) {
			switch ($kind) {
			case 'id':
			$message = pht(
			'No source exists with ID "%s".',
			$source);
			break;
			case 'phid':
			$message = pht(
			'No source exists with PHID "%s".',
			$source);
			break;
			default:
			$message = pht(
			'No source exists with a name matching "%s".',
			$source);
			break;
			}

			throw new PhutilArgumentUsageException($message);
			} else if (count($sources) > 1) {
			$message = pht(
			'More than one source matches "%s". Choose a narrower query, or '.
			'use an ID or PHID to select a source. Matching sources: %s.',
			$source,
			implode(', ', mpull($sources, 'getName')));

			throw new PhutilArgumentUsageException($message);
			}

			return head($sources);
			}

			}