public function testLoadConstant()
{
$this->versionA->addConstant($fooA = new GlobalConstant('FOO'));
$fooA->setPhpType($this->typeRegistry->getNativeType('string'));
$this->versionB->addConstant($fooB = new GlobalConstant('FOO'));
$fooB->setPhpType($this->typeRegistry->getNativeType('string'));
$this->em->persist($this->package);
$this->em->flush();
$loadedConst = $this->provider->loadConstant('FOO');
$this->assertSame($fooA, $loadedConst, 'loadConstant() takes the first constant if no package versions are set.');
$loadedConst = $this->provider->loadConstant('foo');
$this->assertNull($loadedConst, 'loadConstant() treats the name **not** as case-insensitive.');
$this->provider->setPackageVersions(array($this->versionB));
$loadedConst = $this->provider->loadConstant('FOO');
$this->assertSame($fooB, $loadedConst, 'loadConstant() takes the constant from one of the set packages.');
$this->provider->setPackageVersions(array($this->versionC));
$this->assertNull($this->provider->loadConstant('FOO'), 'loadConstant() returns null if constant is not found in set packages.');
$this->assertNull($this->provider->loadConstant('BAR'), 'loadConstant() returns null if constant does not exist.');
}
