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#!/usr/bin/ruby
require File.dirname(__FILE__) + '/gruff_test_case'
class TestGruffScatter < Test::Unit::TestCase
def setup
@datasets = [
[:Chuck, [20, 10, 5, 12, 11, 6, 10, 7], [5, 10, 19, 6, 9, 1, 14, 8]],
[:Brown, [5, 10, 20, 6, 9, 12, 14, 8], [20, 10, 5, 12, 11, 6, 10, 7]],
[:Lucy, [19, 9, 6, 11, 12, 7, 15, 8], [6, 11, 18, 8, 12, 8, 10, 6]]
]
end
# Done
def test_scatter_graph
g = setup_basic_graph
g.title = 'Basic Scatter Plot Test'
g.write('test/output/scatter_basic.png')
end
#~ # Done
def test_many_datapoints
g = Gruff::Scatter.new
g.title = 'Many Datapoint Graph Test'
y_values = (0..50).map { rand(100) }
x_values = (0..50).map { rand(100) }
g.data('many points', x_values, y_values)
# Default theme
g.write('test/output/scatter_many.png')
end
# Done
def test_no_data
g = Gruff::Scatter.new(400)
g.title = 'No Data'
# Default theme
g.write('test/output/scatter_no_data.png')
g = Gruff::Scatter.new(400)
g.title = 'No Data Title'
g.no_data_message = 'There is no data'
g.write('test/output/scatter_no_data_msg.png')
end
# Done
def test_all_zeros
g = Gruff::Scatter.new(400)
g.title = 'All Zeros'
g.data(:gus, [0, 0, 0, 0], [0, 0, 0, 0])
# Default theme
g.write('test/output/scatter_no_data_other.png')
end
# Done
def test_some_nil_points
g = Gruff::Scatter.new
g.title = 'Some Nil Points'
@datasets = [
[:data1, [1, 2, 3, nil, 3, 5, 6], [5, nil, nil, nil, nil, 5, 7]]
]
@datasets.each do |data|
assert_raise ArgumentError do
g.data(*data)
end
end
end
# Done
def test_unequal_number_of_x_and_y_values
g = Gruff::Scatter.new
g.title = 'Unequal number of X and Y values'
@datasets = [
[:data1, [1, 2, 3], [1, 2]],
[:data2, [1, 2, 3, 4, 5], [1, 2, 3, 4, 5, 6]],
]
@datasets.each do |data|
assert_raise ArgumentError do
g.data(*data)
end
end
end
# Done
def test_empty_set_of_axis_values
g = Gruff::Scatter.new
g.title = 'Missing Axis Values'
@datasets = [
[:data1, [1, 2, 3, 4, 5]]
]
@datasets.each do |data|
assert_raise ArgumentError do
g.data(*data)
end
end
end
# Done
def test_no_title
g = Gruff::Scatter.new(400)
g.data(:data1, [1, 2, 3, 4, 5], [1, 2, 3, 4, 5])
g.write('test/output/scatter_no_title.png')
end
# Done
def test_no_line_markers
g = setup_basic_graph(400)
g.title = 'No Line Markers'
g.hide_line_markers = true
g.write('test/output/scatter_no_line_markers.png')
end
# Done
def test_no_legend
g = setup_basic_graph(400)
g.title = 'No Legend'
g.hide_legend = true
g.write('test/output/scatter_no_legend.png')
end
# Done
def test_nothing_but_the_graph
g = setup_basic_graph(400)
g.title = 'THIS TITLE SHOULD NOT DISPLAY!!!'
g.hide_line_markers = true
g.hide_legend = true
g.hide_title = true
g.write('test/output/scatter_nothing_but_the_graph.png')
end
# TODO Implement baselines on x and y axis
#~ def test_baseline_larger_than_data
#~ g = setup_basic_graph(400)
#~ g.title = "Baseline Larger Than Data"
#~ g.baseline_value = 150
#~ g.write("test/output/scatter_large_baseline.png")
#~ end
# Done
def test_wide_graph
g = setup_basic_graph('800x400')
g.title = 'Wide Graph'
g.write('test/output/scatter_wide_graph.png')
g = setup_basic_graph('400x200')
g.title = 'Wide Graph Small'
g.write('test/output/scatter_wide_graph_small.png')
end
# Done
def test_negative
g = setup_pos_neg(800)
g.write('test/output/scatter_pos_neg.png')
g = setup_pos_neg(400)
g.title = 'Pos/Neg Line Test Small'
g.write('test/output/scatter_pos_neg_400.png')
end
# Done
def test_all_negative
g = setup_all_neg(800)
g.write('test/output/scatter_all_neg.png')
g = setup_all_neg(400)
g.title = 'All Neg Line Test Small'
g.write('test/output/scatter_all_neg_400.png')
end
# Done
def test_no_hide_line_no_labels
g = Gruff::Scatter.new
g.title = 'No Hide Line No Labels'
@datasets.each do |data|
g.data(data[0], data[1], data[2])
end
g.hide_line_markers = false
g.write('test/output/scatter_no_hide.png')
end
def test_no_set_labels
g = Gruff::Scatter.new
g.title = 'Setting Labels Test'
g.labels = {
0 => 'This',
1 => 'should',
2 => 'not',
3 => 'show',
4 => 'up'
}
@datasets.each do |data|
g.data(data[0], data[1], data[2])
end
g.write('test/output/scatter_no_labels.png')
end
protected
def setup_basic_graph(size=800)
g = Gruff::Scatter.new(size)
g.title = 'Rad Graph'
@datasets.each do |data|
g.data(data[0], data[1], data[2])
end
g
end
def setup_pos_neg(size=800)
g = Gruff::Scatter.new(size)
g.title = 'Pos/Neg Scatter Graph Test'
g.data(:apples, [-1, 0, 4, -4], [-5, -1, 3, 4])
g.data(:peaches, [10, 8, 6, 3], [-1, 1, 3, 3])
g
end
def setup_all_neg(size=800)
g = Gruff::Scatter.new(size)
g.title = 'Neg Scatter Graph Test'
g.data(:apples, [-1, -1, -4, -4], [-5, -1, -3, -4])
g.data(:peaches, [-10, -8, -6, -3], [-1, -1, -3, -3])
g
end
end # end GruffTestCase
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