A test device for testing photosensitivity of a skin, comprising: a first light source unit that outputs a first test light including ultraviolet light of a first wavelength band; a second light source unit that outputs a second test light including ultraviolet light of a second wavelength band more toward the long wavelength side than the first wavelength band; a third light source that outputs a third test light including visible light; a first irradiation unit including a plurality of first beam splitters arranged in a first direction (x direction), where the first test light is split into a plurality of first irradiation light beams having mutually different intensities by the plurality of first beam splitters and where the plurality of first irradiation light beams thus split are in output in a second direction (z direction) intersecting the first direction; a second irradiation unit that includes a plurality of second beam splitters arranged in the first direction, where the second test light is split into a plurality of second irradiation light beams having mutually different intensities by the plurality of second beam splitters and where the plurality of second irradiation light beams thus split are output in the second direction; and a third irradiation unit that includes a plurality of third beam splitters arranged in the first direction, where the third test light is split into a plurality of third irradiation light beams having mutually different intensities by the plurality of beam splitters of the third light source unit and where the plurality of third irradiation light beams thus split are output in the second direction, wherein the first irradiation unit, the second irradiation unit, and the third irradiation unit are arranged in a third direction (y-direction) which intersects both the first direction and the second direction. a first light source unit that outputs a first test light including ultraviolet light of a first wavelength band; a second light source unit that outputs a second test light including ultraviolet light of a second wavelength band more toward the long wavelength side than the first wavelength band; a third light source that outputs a third test light including visible light; a first irradiation unit including a plurality of first beam splitters arranged in a first direction (x direction), where the first test light is split into a plurality of first irradiation light beams having mutually different intensities by the plurality of first beam splitters and where the plurality of first irradiation light beams thus split are in output in a second direction (z direction) intersecting the first direction; a second irradiation unit that includes a plurality of second beam splitters arranged in the first direction, where the second test light is split into a plurality of second irradiation light beams having mutually different intensities by the plurality of second beam splitters and where the plurality of second irradiation light beams thus split are output in the second direction; and a third irradiation unit that includes a plurality of third beam splitters arranged in the first direction, where the third test light is split into a plurality of third irradiation light beams having mutually different intensities by the plurality of beam splitters of the third light source unit and where the plurality of third irradiation light beams thus split are output in the second direction, wherein the first irradiation unit, the second irradiation unit, and the third irradiation unit are arranged in a third direction (y-direction) which intersects both the first direction and the second direction.