--- /dev/null
+<?php
+namespace Consolidation\Config\Util;
+
+use Consolidation\Config\Config;
+use Consolidation\Config\Loader\ConfigProcessor;
+use Consolidation\Config\Loader\YamlConfigLoader;
+
+class ConfigOverlayTest extends \PHPUnit_Framework_TestCase
+{
+ protected $overlay;
+
+ protected function setUp()
+ {
+ $aliasContext = new Config();
+ $aliasContext->import([
+ 'hidden-by-a' => 'alias hidden-by-a',
+ 'hidden-by-process' => 'alias hidden-by-process',
+ 'options' =>[
+ 'a-a' => 'alias-a',
+ ],
+ 'command' => [
+ 'foo' => [
+ 'bar' => [
+ 'command' => [
+ 'options' => [
+ 'a-b' => 'alias-b',
+ ],
+ ],
+ ],
+ ],
+ ],
+ ]);
+
+ $configFileContext = new Config();
+ $configFileContext->import([
+ 'hidden-by-cf' => 'config-file hidden-by-cf',
+ 'hidden-by-a' => 'config-file hidden-by-a',
+ 'hidden-by-process' => 'config-file hidden-by-process',
+ 'options' =>[
+ 'cf-a' => 'config-file-a',
+ ],
+ 'command' => [
+ 'foo' => [
+ 'bar' => [
+ 'command' => [
+ 'options' => [
+ 'cf-b' => 'config-file-b',
+ ],
+ ],
+ ],
+ ],
+ ],
+ ]);
+
+ $this->overlay = new ConfigOverlay();
+ $this->overlay->set('hidden-by-process', 'process-h');
+ $this->overlay->addContext('cf', $configFileContext);
+ $this->overlay->addContext('a', $aliasContext);
+ $this->overlay->setDefault('df-a', 'default');
+ $this->overlay->setDefault('hidden-by-a', 'default hidden-by-a');
+ $this->overlay->setDefault('hidden-by-cf', 'default hidden-by-cf');
+ $this->overlay->setDefault('hidden-by-process', 'default hidden-by-process');
+ }
+
+ public function testGetPriority()
+ {
+ $this->assertEquals('process-h', $this->overlay->get('hidden-by-process'));
+ $this->assertEquals('config-file hidden-by-cf', $this->overlay->get('hidden-by-cf'));
+ $this->assertEquals('alias hidden-by-a', $this->overlay->get('hidden-by-a'));
+ }
+
+ public function testDefault()
+ {
+ $this->assertEquals('alias-a', $this->overlay->get('options.a-a'));
+ $this->assertEquals('alias-a', $this->overlay->get('options.a-a', 'ignored'));
+ $this->assertEquals('default', $this->overlay->getDefault('df-a', 'ignored'));
+ $this->assertEquals('nsv', $this->overlay->getDefault('a-a', 'nsv'));
+
+ $this->overlay->setDefault('df-a', 'new value');
+ $this->assertEquals('new value', $this->overlay->getDefault('df-a', 'ignored'));
+ }
+
+ public function testExport()
+ {
+ $data = $this->overlay->export();
+
+ $this->assertEquals('config-file-a', $data['options']['cf-a']);
+ $this->assertEquals('alias-a', $data['options']['a-a']);
+ }
+
+ /**
+ * @expectedException Exception
+ */
+ public function testImport()
+ {
+ $data = $this->overlay->import(['a' => 'value']);
+ }
+
+ public function testMaintainPriority()
+ {
+ // Get and re-add the 'cf' context. Its priority should not change.
+ $configFileContext = $this->overlay->getContext('cf');
+ $this->overlay->addContext('cf', $configFileContext);
+
+ // These asserts are the same as in testGetPriority
+ $this->assertEquals('process-h', $this->overlay->get('hidden-by-process'));
+ $this->assertEquals('config-file hidden-by-cf', $this->overlay->get('hidden-by-cf'));
+ $this->assertEquals('alias hidden-by-a', $this->overlay->get('hidden-by-a'));
+ }
+
+ public function testChangePriority()
+ {
+ // Increase the priority of the 'cf' context. Now, it should have a higher
+ // priority than the 'alias' context, but should still have a lower
+ // priority than the 'process' context.
+ $this->overlay->increasePriority('cf');
+
+ // These asserts are the same as in testGetPriority
+ $this->assertEquals('process-h', $this->overlay->get('hidden-by-process'));
+ $this->assertEquals('config-file hidden-by-cf', $this->overlay->get('hidden-by-cf'));
+
+ // This one has changed: the config-file value is now found instead
+ // of the alias value.
+ $this->assertEquals('config-file hidden-by-a', $this->overlay->get('hidden-by-a'));
+ }
+
+ public function testPlaceholder()
+ {
+ $this->overlay->addPlaceholder('lower');
+
+ $higherContext = new Config();
+ $higherContext->import(['priority-test' => 'higher']);
+
+ $lowerContext = new Config();
+ $lowerContext->import(['priority-test' => 'lower']);
+
+ // Usually 'lower' would have the highest priority, since it is
+ // added last. However, our earlier call to 'addPlaceholder' reserves
+ // a spot for it, so the 'higher' context will end up with a higher
+ // priority.
+ $this->overlay->addContext('higher', $higherContext);
+ $this->overlay->addContext('lower', $lowerContext);
+ $this->assertEquals('higher', $this->overlay->get('priority-test', 'neither'));
+
+ // Test to see that we can change the value of the 'higher' context,
+ // and the change will be reflected in the overlay.
+ $higherContext->set('priority-test', 'changed');
+ $this->assertEquals('changed', $this->overlay->get('priority-test', 'neither'));
+
+ // Test to see that the 'process' context still has the highest priority.
+ $this->overlay->set('priority-test', 'process');
+ $higherContext->set('priority-test', 'ignored');
+ $this->assertEquals('process', $this->overlay->get('priority-test', 'neither'));
+ }
+
+ public function testDoesNotHave()
+ {
+ $context = $this->overlay->getContext('no-such-context');
+ $data = $context->export();
+ $this->assertEquals('[]', json_encode($data));
+
+ $this->assertTrue(!$this->overlay->has('no-such-key'));
+ $this->assertTrue(!$this->overlay->hasDefault('no-such-default'));
+
+ $this->assertEquals('no-such-value', $this->overlay->get('no-such-key', 'no-such-value'));
+
+ }
+}