public function testSandboxSetter() { $client = new Client($this->configParams); try { $client->setSandbox(true); } catch (\Exception $expected) { $this->assertRegExp('/and should be a boolean value./i', strval($expected)); } try { $client->setSandbox('string value'); } catch (\Exception $expected) { $this->assertRegExp('/and should be a boolean value./i', strval($expected)); } }