If you do not get shown one of these then houses being sold now come with a diagnostic report which will cover the electrical installation and will tell you what is wrong with the installation.
Tell-tale signs that a property has had an up grade to the electrical system are that the earthing spike will be in a covered pit, the earth wire coming to the earthing isolator "Barrette de terre" is bare copper wire normally in a plastic tube or cover "Gain". The consumer unit has an RCCD more than one if the property is over 35m² and it looks modern with no pull out fuses.
Electrical safety testing and appliance testing is your home safe, what did the last owner do or have done, full written reports carried out including estimates of corrective actions.