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class DensityplotTest < Test::Unit::TestCase
include Helper::Fixture
include Helper::WithTerm
def setup
randn = fixture_path("randn_1338_2000.txt").read.each_line.map(&:to_f)
@dx = randn[0, 1000].compact
@dy = randn[1000, 1000].compact
assert_equal(1000, @dx.length)
assert_equal(1000, @dy.length)
end
sub_test_case("with invalid arguments") do
test("unknown border type") do
assert_raise(ArgumentError.new("unknown border type: invalid_border_name")) do
UnicodePlot.densityplot(@dx, @dy, border: :invalid_border_name)
end
end
end
test("default") do
plot = UnicodePlot.densityplot(@dx, @dy)
dx2 = @dx.map {|x| x + 2 }
dy2 = @dy.map {|y| y + 2 }
assert_same(plot,
UnicodePlot.densityplot!(plot, dx2, dy2))
_, output = with_term { plot.render($stdout, newline: false) }
expected = fixture_path("scatterplot/densityplot.txt").read
assert_equal(output, expected)
end
test("parameters") do
plot = UnicodePlot.densityplot(@dx, @dy,
name: "foo",
color: :red,
title: "Title",
xlabel: "x")
dx2 = @dx.map {|x| x + 2 }
dy2 = @dy.map {|y| y + 2 }
assert_same(plot,
UnicodePlot.densityplot!(plot, dx2, dy2, name: "bar"))
_, output = with_term { plot.render($stdout, newline: false) }
expected = fixture_path("scatterplot/densityplot_parameters.txt").read
assert_equal(output, expected)
end
end
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