old_contents: #!/usr/bin/env python3
  
  import os
  import sys
  
  
  def expect_unary(child):
      for _ in range(20):
          for op_name in ('abs', 'sq', 'atan', 'exp'):
              child.expect('{}\(-?\d+\.\d+\) = -?\d+\.\d+'.format(op_name))
  
      for _ in range(20):
          for op_name in ('sin', 'cos', 'tan'):
              child.expect('{}\(-?\d+.\d+\) = -?\d+.\d+'.format(op_name))
  
      for _ in range(20):
          for op_name in ('asin', 'acos'):
              child.expect('{}\(-?\d+.\d+\) = -?\d+.\d+'.format(op_name))
  
      for _ in range(20):
          for op_name in ('sqrt', 'log', 'log2', 'slog2'):
              child.expect('{}\(-?\d+.\d+\) = -?\d+.\d+'.format(op_name))
  
  
  def expect_binary(child):
      for _ in range(20):
          for op_name in ('add', 'sub', 'mul', 'div', 'mod', 'sadd', 'ssub',
                          'smul', 'sdiv', 'min', 'max'):
              child.expect('{}\(-?\d+.\d+\, -?\d+.\d+\) = -?\d+.\d+'
                           .format(op_name))
  
  
  def testfunc(child):
      child.expect_exact('Unary.')
      expect_unary(child)
      child.expect_exact('Binary.')
      expect_binary(child)
      child.expect_exact('SUCCESS')
  
  
  if __name__ == "__main__":
      sys.path.append(os.path.join(os.environ['RIOTBASE'], 'dist/tools/testrunner'))
      from testrunner import run
      sys.exit(run(testfunc))
  
new_contents: #!/usr/bin/env python3
  
  import os
  import sys
  
  
  def expect_unary(child):
      for _ in range(20):
          for op_name in ('abs', 'sq', 'atan', 'exp'):
              child.expect('{}\(-?\d+\.\d+\) = -?\d+\.\d+'.format(op_name))
  
      for _ in range(20):
          for op_name in ('sin', 'cos', 'tan'):
              child.expect('{}\(-?\d+.\d+\) = -?\d+.\d+'.format(op_name))
  
      for _ in range(20):
          for op_name in ('asin', 'acos'):
              child.expect('{}\(-?\d+.\d+\) = -?\d+.\d+'.format(op_name))
  
      for _ in range(20):
          for op_name in ('sqrt', 'log', 'log2', 'slog2'):
              child.expect('{}\(-?\d+.\d+\) = -?\d+.\d+'.format(op_name))
  
  
  def expect_binary(child):
      for _ in range(1500):
          for op_name in ('add', 'sub', 'mul', 'div', 'mod', 'sadd', 'ssub',
                          'smul', 'sdiv', 'min', 'max'):
              child.expect('{}\(-?\d+.\d+\, -?\d+.\d+\) = -?\d+.\d+'
                           .format(op_name))
  
  
  def testfunc(child):
      child.expect_exact('Unary.')
      expect_unary(child)
      child.expect_exact('Binary.')
      expect_binary(child)
      child.expect_exact('SUCCESS')
  
  
  if __name__ == "__main__":
      sys.path.append(os.path.join(os.environ['RIOTBASE'], 'dist/tools/testrunner'))
      from testrunner import run
      sys.exit(run(testfunc))
  
subject: fix range of loop in test script