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# frozen_string_literal: true
require 'spec_helper'
describe Prawn::Text do
let(:pdf) { create_pdf }
describe '#character_spacing' do
it 'draws the character spacing to the document' do
pdf.character_spacing(10.555555) do
pdf.text('hello world')
end
contents = PDF::Inspector::Text.analyze(pdf.render)
expect(contents.character_spacing.first).to eq(10.55556)
end
it 'does not draw the character spacing to the document' \
' when the new character spacing matches the old' do
pdf.character_spacing(0) do
pdf.text('hello world')
end
contents = PDF::Inspector::Text.analyze(pdf.render)
expect(contents.character_spacing).to be_empty
end
it 'restores character spacing to 0' do
pdf.character_spacing(10.555555) do
pdf.text('hello world')
end
contents = PDF::Inspector::Text.analyze(pdf.render)
expect(contents.character_spacing.last).to eq(0)
end
it 'functions as an accessor when no parameter given' do
pdf.character_spacing(10.555555) do
pdf.text('hello world')
expect(pdf.character_spacing).to eq(10.555555)
end
expect(pdf.character_spacing).to eq(0)
end
# ensure that we properly internationalize by using the number of characters
# in a string, not the number of bytes, to insert character spaces
#
it 'calculates character spacing widths by characters, not bytes' do
pdf.font("/usr/share/fonts/truetype/arphic-gkai00mp/gkai00mp.ttf")
str = 'こんにちは世界'
raw_width = nil
pdf.character_spacing(0) do
raw_width = pdf.width_of(str)
end
pdf.character_spacing(10) do
# the new width should include six 10-pt character spaces.
expect(pdf.width_of(str)).to be_within(0.001).of(raw_width + (10 * 6))
end
end
end
describe '#word_spacing' do
it 'draws the word spacing to the document' do
pdf.word_spacing(10.555555) do
pdf.text('hello world')
end
contents = PDF::Inspector::Text.analyze(pdf.render)
expect(contents.word_spacing.first).to eq(10.55556)
end
it 'draws the word spacing to the document' \
' when the new word spacing matches the old' do
pdf.word_spacing(0) do
pdf.text('hello world')
end
contents = PDF::Inspector::Text.analyze(pdf.render)
expect(contents.word_spacing).to be_empty
end
it 'restores word spacing to 0' do
pdf.word_spacing(10.555555) do
pdf.text('hello world')
end
contents = PDF::Inspector::Text.analyze(pdf.render)
expect(contents.word_spacing.last).to eq(0)
end
it 'functions as an accessor when no parameter given' do
pdf.word_spacing(10.555555) do
pdf.text('hello world')
expect(pdf.word_spacing).to eq(10.555555)
end
expect(pdf.word_spacing).to eq(0)
end
end
end
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