Test apparatus and testing method

A test apparatus that tests a device under test, including a main memory having an expectation pattern storing region storing an expectation pattern sequence to be sequentially compared with output patterns sequentially output from a terminal of the device; a test pattern outputting unit for sequentially inputting a plurality of test patterns into the device; a capture unit for sequentially acquiring the output patterns into an output pattern storing region on the main memory; a memory reading unit for reading an output pattern sequence consisting of the plurality of acquired output patterns and the expectation pattern sequence from the main memory when the acquisition process acquiring the output patterns into the output pattern storing region has been terminated; and an expectation comparing unit for comparing the read expectation pattern sequence and the output pattern sequence.