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# frozen_string_literal: true
require 'spec_helper'
describe Prawn::Graphics do
let(:pdf) { create_pdf }
describe 'When stroking with default settings' do
it 'cap_style should be :butt' do
expect(pdf.cap_style).to eq(:butt)
end
it 'join_style should be :miter' do
expect(pdf.join_style).to eq(:miter)
end
it 'dashed? should be_false' do
expect(pdf).to_not be_dashed
end
end
describe 'Cap styles' do
it 'is able to use assignment operator' do
pdf.cap_style = :round
expect(pdf.cap_style).to eq(:round)
end
describe '#cap_style(:butt)' do
it 'rendered PDF should include butt style cap' do
pdf.cap_style(:butt)
cap_style = PDF::Inspector::Graphics::CapStyle.analyze(pdf.render)
.cap_style
expect(cap_style).to eq(0)
end
end
describe '#cap_style(:round)' do
it 'rendered PDF should include round style cap' do
pdf.cap_style(:round)
cap_style = PDF::Inspector::Graphics::CapStyle.analyze(pdf.render)
.cap_style
expect(cap_style).to eq(1)
end
end
describe '#cap_style(:projecting_square)' do
it 'rendered PDF should include projecting_square style cap' do
pdf.cap_style(:projecting_square)
cap_style = PDF::Inspector::Graphics::CapStyle.analyze(pdf.render)
.cap_style
expect(cap_style).to eq(2)
end
end
it 'carries the current cap style settings over to new pages' do
pdf.cap_style(:round)
pdf.start_new_page
cap_styles = PDF::Inspector::Graphics::CapStyle.analyze(pdf.render)
expect(cap_styles.cap_style_count).to eq(2)
expect(cap_styles.cap_style).to eq(1)
end
end
describe 'Join styles' do
it 'is able to use assignment operator' do
pdf.join_style = :round
expect(pdf.join_style).to eq(:round)
end
describe '#join_style(:miter)' do
it 'rendered PDF should include miter style join' do
pdf.join_style(:miter)
join_style = PDF::Inspector::Graphics::JoinStyle.analyze(pdf.render)
.join_style
expect(join_style).to eq(0)
end
end
describe '#join_style(:round)' do
it 'rendered PDF should include round style join' do
pdf.join_style(:round)
join_style = PDF::Inspector::Graphics::JoinStyle.analyze(pdf.render)
.join_style
expect(join_style).to eq(1)
end
end
describe '#join_style(:bevel)' do
it 'rendered PDF should include bevel style join' do
pdf.join_style(:bevel)
join_style = PDF::Inspector::Graphics::JoinStyle.analyze(pdf.render)
.join_style
expect(join_style).to eq(2)
end
end
it 'carries the current join style settings over to new pages' do
pdf.join_style(:round)
pdf.start_new_page
join_styles = PDF::Inspector::Graphics::JoinStyle.analyze(pdf.render)
expect(join_styles.join_style_count).to eq(2)
expect(join_styles.join_style).to eq(1)
end
context 'with invalid arguments' do
it 'raises an exception' do
expect { pdf.join_style(:mitre) }
.to raise_error(Prawn::Errors::InvalidJoinStyle)
end
end
end
describe 'Dashes' do
it 'is able to use assignment operator' do
pdf.dash = 2
expect(pdf).to be_dashed
end
describe 'setting a dash' do
it 'dashed? should be_true' do
pdf.dash(2)
expect(pdf).to be_dashed
end
it 'rendered PDF should include a stroked dash' do
pdf.dash(2)
dashes = PDF::Inspector::Graphics::Dash.analyze(pdf.render)
expect(dashes.stroke_dash).to eq([[2, 2], 0])
end
end
describe 'setting a dash by passing a single argument' do
it 'space between dashes should be the same length as the dash in the '\
'rendered PDF' do
pdf.dash(2)
dashes = PDF::Inspector::Graphics::Dash.analyze(pdf.render)
expect(dashes.stroke_dash).to eq([[2, 2], 0])
end
end
describe 'with a space option that differs from the first argument' do
it 'space between dashes in the rendered PDF should be different length '\
'than the length of the dash' do
pdf.dash(2, space: 3)
dashes = PDF::Inspector::Graphics::Dash.analyze(pdf.render)
expect(dashes.stroke_dash).to eq([[2, 3], 0])
end
end
describe 'with a non-zero phase option' do
it 'rendered PDF should include a non-zero phase' do
pdf.dash(2, phase: 1)
dashes = PDF::Inspector::Graphics::Dash.analyze(pdf.render)
expect(dashes.stroke_dash).to eq([[2, 2], 1])
end
end
describe 'setting a dash by using an array' do
it 'dash and spaces should be set from the array' do
pdf.dash([1, 2, 3, 4])
dashes = PDF::Inspector::Graphics::Dash.analyze(pdf.render)
expect(dashes.stroke_dash).to eq([[1, 2, 3, 4], 0])
end
it 'at least one number in the array must not be zero' do
pdf.dash([1, 0])
dashes = PDF::Inspector::Graphics::Dash.analyze(pdf.render)
expect(dashes.stroke_dash).to eq([[1, 0], 0])
end
it 'space options has to be ignored' do
pdf.dash([1, 2, 3, 4], space: 3)
dashes = PDF::Inspector::Graphics::Dash.analyze(pdf.render)
expect(dashes.stroke_dash).to eq([[1, 2, 3, 4], 0])
end
it 'phase options should be correctly used' do
pdf.dash([1, 2, 3, 4], phase: 3)
dashes = PDF::Inspector::Graphics::Dash.analyze(pdf.render)
expect(dashes.stroke_dash).to eq([[1, 2, 3, 4], 3])
end
end
describe 'clearing stroke dash' do
it 'restores solid line' do
pdf.dash(2)
pdf.undash
dashes = PDF::Inspector::Graphics::Dash.analyze(pdf.render)
expect(dashes.stroke_dash).to eq([[], 0])
end
end
it 'carries the current dash settings over to new pages' do
pdf.dash(2)
pdf.start_new_page
dashes = PDF::Inspector::Graphics::Dash.analyze(pdf.render)
expect(dashes.stroke_dash_count).to eq(2)
expect(dashes.stroke_dash).to eq([[2, 2], 0])
end
describe '#dashed?' do
it 'an initial document should not be dashed' do
expect(pdf.dashed?).to eq(false)
end
it 'returns true if any of the currently active settings are dashed' do
pdf.dash(2)
pdf.save_graphics_state
expect(pdf.dashed?).to eq(true)
end
it 'returns false if the document was most recently undashed' do
pdf.dash(2)
pdf.save_graphics_state
pdf.undash
pdf.save_graphics_state
expect(pdf.dashed?).to eq(false)
end
it 'returns true when restoring to a state that was dashed' do
pdf.dash(2)
pdf.save_graphics_state
pdf.undash
pdf.restore_graphics_state
expect(pdf.dashed?).to eq(true)
end
end
end
end
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