That's quite different - in most European countries the contractors are supposed to do all the tests I listed and document the results including the type, serial number and calibration date of the tester that was used. The relevant tests are supposed to be carried out even after minimal changes to existing wiring, e.g. adding a single socket in a home. Commercial and industrial properties are required to be re-tested at regular intervals ranging from six months to five years depending on risk assessment. In that case portable appliances, extension leads etc. are included (visual inspection, earth continuity, earth leakage mainly). Some companies have banned employees from bringing their own electrical gadgets to work because they're untested and I've even heard discussions about hotel guests bringing their phone chargers and hair dryers etc.
