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require 'svggraph'
require 'SVG/Graph/DataPoint'
require 'minitest/autorun'
require 'minitest/reporters'
reporter_options = { :color => true }
Minitest::Reporters.use! [Minitest::Reporters::DefaultReporter.new(reporter_options)]
class TestSvgGraph < Minitest::Test
def test_bar_line_and_pie
fields = %w(Jan Feb Mar);
data_sales_02 = [12, 45, 21]
[SVG::Graph::Bar, SVG::Graph::BarHorizontal, SVG::Graph::Line, SVG::Graph::Pie].each do
|klass|
graph = klass.new(
:height => 500,
:width => 300,
:fields => fields
)
graph.add_data(
:data => data_sales_02,
:title => 'Sales 2002'
)
out=graph.burn
assert(out=~/Created with SVG::Graph/)
end
end # test_bar_line_and_pie
def test_pie_100_percent
fields = %w(Internet TV Newspaper Magazine Radio)
#data1 = [2, 3, 1, 3, 1]
#data2 = [0, 2, 1, 5, 4]
data1 = [0, 3, 0, 0, 0]
data2 = [0, 6, 0, 0, 0]
graph = SVG::Graph::Pie.new(
:height => 500,
:width => 300,
:fields => fields,
:graph_title => "100% pie",
:show_graph_title => true,
:show_data_labels => true,
:show_x_guidelines => true,
:show_x_title => true,
:x_title => "Time"
)
graph.add_data(
:data => data1,
:title => 'data1'
)
graph.add_data(
:data => data2,
:title => 'data2'
)
out = graph.burn
File.open(File.expand_path("pie_100.svg",__dir__), "w") {|fout|
fout.print( out )
}
assert_match(/TV 100%/, out, "100% text not found in graph")
assert_match(/circle/, out, "no circle was found in graph")
end # test_pie_100_percent
end
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