public function testCreateNestedKeyValuePairExtractsDotSeparatedKeysAndCreatesNestedStructure()
{
$patchValues = [];
$this->configResource->createNestedKeyValuePair($patchValues, 'foo.bar.baz', 'value');
$this->assertArrayHasKey('foo', $patchValues);
$this->assertInternalType('array', $patchValues['foo']);
$this->assertArrayHasKey('bar', $patchValues['foo']);
$this->assertInternalType('array', $patchValues['foo']['bar']);
$this->assertArrayHasKey('baz', $patchValues['foo']['bar']);
$this->assertEquals('value', $patchValues['foo']['bar']['baz']);
// ensure second call to createNestedKeyValuePair does not destroy original values
$this->configResource->createNestedKeyValuePair($patchValues, 'foo.bar.boom', 'value2');
$this->assertCount(2, $patchValues['foo']['bar']);
}