Class: HistogramTest

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

Constant Summary

Constants included from MoreMath

MoreMath::Infinity, MoreMath::STD_NORMAL_DISTRIBUTION, MoreMath::VERSION, MoreMath::VERSION_ARRAY, MoreMath::VERSION_BUILD, MoreMath::VERSION_MAJOR, MoreMath::VERSION_MINOR

Instance Method Summary collapse

Instance Method Details

#output_histogram(histogram, width = 65) ⇒ Object (private) 



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# File 'tests/histogram_test.rb', line 143

def output_histogram(histogram, width = 65)
  $stdout.puts
  histogram.display $stdout, width
  $stdout.puts
end

#test_histogram ⇒ Object 



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# File 'tests/histogram_test.rb', line 10

def test_histogram
  sequence = Sequence.new [ 1, 2, 3, 0, 2 ]
  histogram = Histogram.new sequence, 3
  assert_equal [ [0.0, 1.0, 2], [1.0, 2.0, 2], [2.0, 3.0, 1] ],
    histogram.each_bin.map(&:to_a)
end

#test_histogram_display ⇒ Object 



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# File 'tests/histogram_test.rb', line 17

def test_histogram_display
  sequence = Sequence.new [ 1, 2, 3, 0, 2 ]
  histogram = Histogram.new sequence, 3
  def histogram.utf8?
    false
  end
  assert_equal [[2.0, 3.0, 1], [1.0, 2.0, 2], [0.0, 1.0, 2]],
    histogram.instance_eval { rows }
  output = StringIO.new
  histogram.display output, 65
  assert_equal <<~end, output.string
      2.50000 -|*************************                         
      1.50000 -|**************************************************
      0.50000 -|**************************************************
  max_count=2
  end
end

#test_histogram_display_utf8 ⇒ Object 



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# File 'tests/histogram_test.rb', line 70

def test_histogram_display_utf8
  srand 1337
  sequence = Sequence.new 1000.times.map { rand(10) }
  histogram = Histogram.new sequence, 3
  def histogram.utf8?
    true
  end
  output = StringIO.new
  histogram.display output, 65
  assert_equal <<~end, output.string
      7.50000 -|⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿               
      4.50000 -|⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡇                
      1.50000 -|⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ 
  max_count=420
  end
end

#test_histogram_display_with_counts ⇒ Object 



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# File 'tests/histogram_test.rb', line 35

def test_histogram_display_with_counts
  sequence = Sequence.new [ 1, 2, 3, 0, 2 ]
  histogram = Histogram.new sequence, with_counts: true, bins: 3
  def histogram.utf8?
    false
  end
  assert_equal [[2.0, 3.0, 1], [1.0, 2.0, 2], [0.0, 1.0, 2]],
    histogram.instance_eval { rows }
  output = StringIO.new
  histogram.display output, 65
  assert_equal <<~end, output.string
      2.50000 -|************************                         1
      1.50000 -|************************************************ 2
      0.50000 -|************************************************ 2
  max_count=2
  end
end

#test_histogram_display_with_counts_lots ⇒ Object 



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# File 'tests/histogram_test.rb', line 53

def test_histogram_display_with_counts_lots
  srand 1337
  sequence = Sequence.new 1000.times.map { rand(10) * rand(10) }
  histogram = Histogram.new sequence, with_counts: true, bins: 3
  def histogram.utf8?
    false
  end
  output = StringIO.new
  histogram.display output, 65
  assert_equal <<~end, output.string
     67.50000 -|*****                                           81
     40.50000 -|*************                                  206
     13.50000 -|********************************************** 713
  max_count=713
  end
end

#test_histogram_display_with_counts_utf8 ⇒ Object 



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# File 'tests/histogram_test.rb', line 87

def test_histogram_display_with_counts_utf8
  srand 1337
  sequence = Sequence.new 1000.times.map { rand(10) }
  histogram = Histogram.new sequence, with_counts: true, bins: 3
  def histogram.utf8?
    true
  end
  output = StringIO.new
  histogram.display output, 65
  assert_equal <<~end, output.string
      7.50000 -|⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡇               295
      4.50000 -|⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡇                285
      1.50000 -|⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿  420
  max_count=420
  end
end

#test_histogram_display_with_counts_utf8_product ⇒ Object 



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# File 'tests/histogram_test.rb', line 104

def test_histogram_display_with_counts_utf8_product
  srand 1337
  sequence = Sequence.new 1000.times.map { rand(10) * rand(10) }
  histogram = Histogram.new sequence, with_counts: true, bins: 3
  def histogram.utf8?
    true
  end
  output = StringIO.new
  histogram.display output, 65
  assert_equal <<~end, output.string
     67.50000 -|⣿⣿⣿⣿⣿                                           81
     40.50000 -|⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿                                  206
     13.50000 -|⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿  713
  max_count=713
  end
end

#test_histogram_display_with_counts_utf8_product_width_75_percent ⇒ Object 



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# File 'tests/histogram_test.rb', line 121

def test_histogram_display_with_counts_utf8_product_width_75_percent
  srand 1337
  sequence = Sequence.new 1000.times.map { rand(10) * rand(10) }
  histogram = Histogram.new sequence, with_counts: true, bins: 3
  def histogram.utf8?
    true
  end
  def histogram.terminal_width
    80
  end
  output = StringIO.new
  histogram.display output, '90%'
  assert_equal <<~end, output.string
     67.50000 -|⣿⣿⣿⣿⣿⡇                                                 81
     40.50000 -|⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿                                       206
     13.50000 -|⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿  713
  max_count=713
  end
end