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Method "YiiRequirementChecker::check()" has been implemented.

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This commit is contained in:
Klimov Paul
2013-05-11 16:18:14 +03:00
parent 3374c78233
commit 07fabfd6fc
2 changed files with 141 additions and 3 deletions
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47
tests/unit/framework/requirements/YiiRequirementCheckerTest.php
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@ -10,8 +10,49 @@ use yiiunit\TestCase;
*/ */
class YiiRequirementCheckerTest extends TestCase class YiiRequirementCheckerTest extends TestCase
{ {
public function testCreate() { public function testCheck()
$requirementChecker = new YiiRequirementChecker(); {
$this->assertTrue(is_object($requirementChecker)); $requirementsChecker = new YiiRequirementChecker();
$requirements = array(
'requirementPass' => array(
'name' => 'Requirement 1',
'mandatory' => true,
'condition' => true,
'by' => 'Requirement 1',
'memo' => 'Requirement 1',
),
'requirementError' => array(
'name' => 'Requirement 2',
'mandatory' => true,
'condition' => false,
'by' => 'Requirement 2',
'memo' => 'Requirement 2',
),
'requirementWarning' => array(
'name' => 'Requirement 3',
'mandatory' => false,
'condition' => false,
'by' => 'Requirement 3',
'memo' => 'Requirement 3',
),
);
$checkResult = $requirementsChecker->check($requirements);
$summary = $checkResult['summary'];
$this->assertEquals(count($requirements), $summary['total'], 'Wrong summary total!');
$this->assertEquals(1, $summary['errors'], 'Wrong summary errors!');
$this->assertEquals(1, $summary['warnings'], 'Wrong summary warnings!');
$checkedRequirements = $checkResult['requirements'];
$this->assertEquals(false, $checkedRequirements['requirementPass']['error'], 'Passed requirement has an error!');
$this->assertEquals(false, $checkedRequirements['requirementPass']['warning'], 'Passed requirement has a warning!');
$this->assertEquals(true, $checkedRequirements['requirementError']['error'], 'Error requirement has no error!');
$this->assertEquals(false, $checkedRequirements['requirementWarning']['error'], 'Error requirement has an error!');
$this->assertEquals(true, $checkedRequirements['requirementWarning']['warning'], 'Error requirement has no warning!');
} }
} }

97
yii/requirements/YiiRequirementChecker.php
View File

@ -8,10 +8,107 @@
/** /**
* YiiRequirementChecker allows checking, if current system meets the requirements for running the application. * YiiRequirementChecker allows checking, if current system meets the requirements for running the application.
* *
* @property array|null $result the check results.
*
* @author Paul Klimov <klimov.paul@gmail.com> * @author Paul Klimov <klimov.paul@gmail.com>
* @since 2.0 * @since 2.0
*/ */
class YiiRequirementChecker class YiiRequirementChecker
{ {
function check($requirements)
{
if (!is_array($requirements)) {
$this->usageError("Requirements must be an array!");
}
$summary = array(
'total' => 0,
'errors' => 0,
'warnings' => 0,
);
foreach ($requirements as $key => $rawRequirement) {
$requirement = $this->normalizeRequirement($rawRequirement, $key);
$summary['total']++;
if (!$requirement['condition']) {
if ($requirement['mandatory']) {
$requirement['error'] = true;
$requirement['warning'] = true;
$summary['errors']++;
} else {
$requirement['error'] = false;
$requirement['warning'] = true;
$summary['warnings']++;
}
} else {
$requirement['error'] = false;
$requirement['warning'] = false;
}
$requirements[$key] = $requirement;
}
$result = array(
'summary' => $summary,
'requirements' => $requirements,
);
return $result;
}
/**
* Normalizes requirement ensuring it has correct format.
* @param array $requirement raw requirement.
* @param int $requirementKey requirement key in the list.
* @return array normalized requirement.
*/
function normalizeRequirement($requirement, $requirementKey=0)
{
if (!is_array($requirement)) {
$this->usageError('Requirement must be an array!');
}
if (!array_key_exists('condition', $requirement)) {
$this->usageError("Requirement '{$requirementKey}' has no condition!");
} else {
$evalPrefix = 'eval:';
if (is_string($requirement['condition']) && strpos($requirement['condition'], $evalPrefix)===0) {
$expression = substr($requirement['condition'], strlen($evalPrefix));
$requirement['condition'] = $this->evaluateExpression($expression);
}
}
if (!array_key_exists('name', $requirement)) {
$requirement['name'] = is_numeric($requirementKey) ? 'Requirement #'.$requirementKey : $requirementKey;
}
if (!array_key_exists('mandatory', $requirement)) {
if (array_key_exists('required', $requirement)) {
$requirement['mandatory'] = $requirement['required'];
} else {
$requirement['mandatory'] = false;
}
}
if (!array_key_exists('by', $requirement)) {
$requirement['by'] = 'Unknown';
}
if (!array_key_exists('memo', $requirement)) {
$requirement['memo'] = '';
}
return $requirement;
}
/**
* Displays a usage error.
* This method will then terminate the execution of the current application.
* @param string $message the error message
*/
function usageError($message)
{
echo "Error: $message\n\n";
exit(1);
}
/**
* Evaluates a PHP expression under the context of this class.
* @param string $expression a PHP expression to be evaluated.
* @return mixed the expression result.
*/
function evaluateExpression($expression)
{
return eval('return '.$expression.';');
}
} }