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test-scatterplot.rb
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154 lines (137 loc) · 5.08 KB
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class ScatterplotTest < Test::Unit::TestCase
include Helper::Fixture
include Helper::WithTerm
def setup
@x = [-1, 1, 3, 3, -1]
@y = [2, 0, -5, 2, -5]
end
test("errors") do
assert_raise(ArgumentError) do
UnicodePlot.scatterplot()
end
assert_raise(ArgumentError) do
UnicodePlot.scatterplot([1, 2], [1, 2, 3])
end
assert_raise(ArgumentError) do
UnicodePlot.scatterplot([1, 2, 3], [1, 2])
end
assert_raise(ArgumentError) do
UnicodePlot.scatterplot(1..3, 1..2)
end
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.scatterplot(@x, @y, border: :invalid_border_name)
end
end
end
test("default") do
plot = UnicodePlot.scatterplot(@x, @y)
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/default.txt").read,
output)
end
test("y only") do
plot = UnicodePlot.scatterplot(@y)
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/y_only.txt").read,
output)
end
test("one range") do
plot = UnicodePlot.scatterplot(6..10)
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/range1.txt").read,
output)
end
test("two ranges") do
plot = UnicodePlot.scatterplot(11..15, 6..10)
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/range2.txt").read,
output)
end
test("scale1") do
x = @x.map {|a| a * 1e3 + 15 }
y = @y.map {|a| a * 1e-3 - 15 }
plot = UnicodePlot.scatterplot(x, y)
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/scale1.txt").read,
output)
end
test("scale2") do
x = @x.map {|a| a * 1e-3 + 15 }
y = @y.map {|a| a * 1e3 - 15 }
plot = UnicodePlot.scatterplot(x, y)
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/scale2.txt").read,
output)
end
test("scale3") do
miny = -1.2796649117521434e218
maxy = -miny
plot = UnicodePlot.scatterplot([1], [miny], xlim: [1, 1], ylim: [miny, maxy])
_, output = with_term { plot.render($stdout, newline: false) }
expected = fixture_path("scatterplot/scale3.txt").read
assert_equal(expected, output)
end
test("limits") do
plot = UnicodePlot.scatterplot(@x, @y, xlim: [-1.5, 3.5], ylim: [-5.5, 2.5])
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/limits.txt").read,
output)
end
test("nogrid") do
plot = UnicodePlot.scatterplot(@x, @y, grid: false)
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/nogrid.txt").read,
output)
end
test("blue") do
plot = UnicodePlot.scatterplot(@x, @y, color: :blue, name: "points1")
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/blue.txt").read,
output)
end
test("parameters") do
plot = UnicodePlot.scatterplot(@x, @y,
name: "points1",
title: "Scatter",
xlabel: "x",
ylabel: "y")
_, output = with_term { plot.render($stdout, newline: false) }
expected = fixture_path("scatterplot/parameters1.txt").read
assert_equal(expected, output)
assert_same(plot,
UnicodePlot.scatterplot!(plot,
[0.5, 1, 1.5],
name: "points2"))
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/parameters2.txt").read,
output)
assert_same(plot,
UnicodePlot.scatterplot!(plot,
[-0.5, 0.5, 1.5],
[0.5, 1, 1.5],
name: "points3"))
_, output = with_term { plot.render($stdout, newline: false) }
assert_equal(fixture_path("scatterplot/parameters3.txt").read,
output)
output = StringIO.open do |sio|
plot.render(sio, newline: false)
sio.close
sio.string
end
assert_equal(fixture_path("scatterplot/nocolor.txt").read,
output)
end
test("canvas size") do
plot = UnicodePlot.scatterplot(@x, @y,
title: "Scatter",
canvas: :dot,
width: 10,
height: 5)
_, output = with_term { plot.render($stdout, newline: false) }
expected = fixture_path("scatterplot/canvassize.txt").read
assert_equal(expected, output)
end
end