Sha256: 73ead1516cfcff256479a0fec3bccf6589dcbb67057ca20658fc501668cdf201
Contents?: true
Size: 878 Bytes
Versions: 5
Compression:
Stored size: 878 Bytes
Contents
require 'test_helper'
class Mathematical::PNGTest < MiniTest::Test
def before
File.delete("#{fixtures_dir}/png/pmatrix.png") if File.exist?("#{fixtures_dir}/png/pmatrix.png")
end
def test_it_creates_a_png
# seems to barf on Travis
skip if TRAVIS_MACOS
string = '''
$$
\begin{pmatrix}
1 & a_1 & a_1^2 & \cdots & a_1^n \\\\
1 & a_2 & a_2^2 & \cdots & a_2^n \\\\
\vdots & \vdots& \vdots & \ddots & \vdots \\\\
1 & a_m & a_m^2 & \cdots & a_m^n
\end{pmatrix}
$$
'''
render = Mathematical.new({ :format => :png })
data_hash = render.render(string)
header = data_hash[:data].unpack('H*').first.slice(0, 18)
File.open("#{fixtures_dir}/png/pmatrix.png", 'w') { |f| f.write(data_hash[:data]) }
file_bytes = TRAVIS_MACOS ? '24240a5c626567696e' : '89504e470d0a1a0a00'
assert_equal header, file_bytes
end
end
Version data entries
5 entries across 5 versions & 1 rubygems