// Real arithmetic. import TestLib; StartTest("real error"); assert((1.0-1.0) < realEpsilon); EndTest(); StartTest("real addition"); assert((1.0+1.0) == (2.0)); EndTest(); StartTest("real subtraction"); assert((2.0-1.0) == (1.0)); EndTest(); StartTest("real multiplication"); assert((2.0*2.0) == (4.0)); EndTest(); StartTest("real division"); assert((4.0/2.0) == (2.0)); EndTest();