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Versions: 34
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Contents
# -*- encoding: utf-8 -*-
require 'test_helper'
require 'stringio'
require 'hexapdf/font/true_type/table'
require_relative 'common'
describe HexaPDF::Font::TrueType::Table do
before do
io = StringIO.new('some string')
@file = Object.new
@file.define_singleton_method(:io) { io }
@entry = HexaPDF::Font::TrueType::Table::Directory::Entry.new('tagg', 0, 0, @file.io.string.length)
end
describe "initialize" do
it "reads the data from the associated file" do
table = TrueTypeTestTable.new(@file, @entry)
assert_equal(@file.io.string, table.data)
end
end
describe "checksum_valid?" do
it "checks whether an entry's checksum is valid" do
@file.io.string = 254.chr * 17 + 0.chr * 3
@entry.checksum = (0xfefefefe * 4 + 0xfe000000) % 2**32
@entry.length = @file.io.string.length
table = TrueTypeTestTable.new(@file, @entry)
assert(table.checksum_valid?)
end
end
describe "read_fixed" do
it "works for unsigned values" do
@file.io.string = [1, 20480].pack('nn')
@entry.length = @file.io.string.length
table = TrueTypeTestTable.new(@file, @entry)
assert_equal(1 + Rational(20480, 65536), table.send(:read_fixed))
end
it "works for signed values" do
@file.io.string = [-1, 20480].pack('nn')
@entry.length = @file.io.string.length
table = TrueTypeTestTable.new(@file, @entry)
assert_equal(-1 + Rational(20480, 65536), table.send(:read_fixed))
end
end
end
Version data entries
34 entries across 34 versions & 1 rubygems