The present invention enables testing with high reproducibility under various conditions. This present invention is provided with: a testing stage 22 on which a vehicle 8 to be tested is mounted and which is capable of changing the attitude and the direction of the vehicle 8 to be tested; an environment reproduction mechanism 26 for reproducing the environment around the vehicle 8 to be tested; a traveling condition reproduction mechanism 28 that moves relatively to the vehicle 8 to be tested and reproduces the traveling state of the vehicle; and a building 33 that covers the testing stage 22, the traveling condition reproduction mechanism 28, and the environment reproduction mechanism 26, and that sets the surroundings of the testing stage 22 as an indoor space.
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