Class: NumberifyStringFunctionTest

Inherits:
Test::Unit::TestCase
  • Object
show all
Includes:
MoreMath::Functions
Defined in:
tests/numberify_string_function_test.rb

Instance Method Summary collapse

Methods included from MoreMath::Functions

#beta, beta, #beta_regularized, beta_regularized, #cantor_pairing, cantor_pairing, #cantor_pairing_inv, cantor_pairing_inv, #erf, #erfc, #gamma, gamma, #gammaP_regularized, gammaP_regularized, #gammaQ_regularized, gammaQ_regularized, #log_beta, log_beta, #log_ceil, log_ceil, #log_floor, log_floor, #log_gamma, #logb, logb, #numberify_string, numberify_string, #stringify_number, stringify_number

Methods included from MoreMath::Entropy

#collision_entropy_per_symbol, #collision_entropy_total, #entropy_ideal, #entropy_maximum, #entropy_per_symbol, #entropy_probabilities, #entropy_ratio, #entropy_total, #minimum_entropy_per_symbol, #minimum_entropy_total

Methods included from MoreMath::Lambert

#lambert_w

Instance Method Details

#test_log_ceil ⇒ Object 



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# File 'tests/numberify_string_function_test.rb', line 8

def test_log_ceil
  assert_raise(ArgumentError) { log_ceil(-1) }
  assert_raise(ArgumentError) { log_ceil(0) }
  for x in 1..256
    assert_equal logb(x).ceil, log_ceil(x), "log_ceil(#{x}) failed"
  end
end

#test_log_floor ⇒ Object 



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# File 'tests/numberify_string_function_test.rb', line 16

def test_log_floor
  assert_raise(ArgumentError) { log_floor(-1) }
  assert_raise(ArgumentError) { log_floor(0) }
  for x in 1..256
    assert_equal logb(x).floor, log_floor(x), "log_floor(#{x}) failed"
  end
end

#test_numberify_string_function ⇒ Object 



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# File 'tests/numberify_string_function_test.rb', line 24

def test_numberify_string_function
  assert_equal 0, numberify_string('', 'ab')
  assert_equal 1, numberify_string('a', 'ab')
  assert_equal 2, numberify_string('b', 'ab')
  assert_equal 3, numberify_string('aa', 'ab')
  assert_equal 4, numberify_string('ab', 'ab')
  assert_equal 5, numberify_string('ba', 'ab')
  assert_equal 6, numberify_string('bb', 'ab')

  assert_equal 0, numberify_string('', 'abc')
  assert_equal 1, numberify_string('a', 'abc')
  assert_equal 2, numberify_string('b', 'abc')
  assert_equal 3, numberify_string('c', 'abc')
  assert_equal 4, numberify_string('aa', 'abc')
  assert_equal 5, numberify_string('ab', 'abc')
  assert_equal 5, numberify_string('ab', %w[a b c])
  assert_equal 5, numberify_string('ab', 'a'..'c')
end

#test_numberify_string_inv_function ⇒ Object 



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# File 'tests/numberify_string_function_test.rb', line 43

def test_numberify_string_inv_function
  assert_raise(ArgumentError) { stringify_number(-1, 'ab') }
  assert_equal '', stringify_number(0, 'ab')
  assert_equal 'a', stringify_number(1, 'ab')
  assert_equal 'b', stringify_number(2, 'ab')
  assert_equal 'aa', stringify_number(3, 'ab')
  assert_equal 'ab', stringify_number(4, 'ab')
  assert_equal 'ba', stringify_number(5, 'ab')
  assert_equal 'bb', stringify_number(6, 'ab')

  assert_raise(ArgumentError) { stringify_number(-1, 'abc') }
  assert_equal '', stringify_number(0, 'abc')
  assert_equal 'a', stringify_number(1, 'abc')
  assert_equal 'b', stringify_number(2, 'abc')
  assert_equal 'c', stringify_number(3, 'abc')
  assert_equal 'aa', stringify_number(4, 'abc')
  assert_equal 'ab', stringify_number(5, 'abc')
end