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# encoding: utf-8
require File.join(File.expand_path(File.dirname(__FILE__)), "spec_helper")
describe "Core::Text::Formatted::Arranger#format_array" do
it "should populate unconsumed array" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you?" }]
arranger.format_array = array
arranger.unconsumed[0].should == { :text => "hello " }
arranger.unconsumed[1].should == { :text => "world how ",
:styles => [:bold] }
arranger.unconsumed[2].should == { :text => "are",
:styles => [:bold, :italic] }
arranger.unconsumed[3].should == { :text => " you?" }
end
it "should split newlines into their own elements" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "\nhello\nworld" }]
arranger.format_array = array
arranger.unconsumed[0].should == { :text => "\n" }
arranger.unconsumed[1].should == { :text => "hello" }
arranger.unconsumed[2].should == { :text => "\n" }
arranger.unconsumed[3].should == { :text => "world" }
end
end
describe "Core::Text::Formatted::Arranger#preview_next_string" do
it "should not populate the consumed array" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello" }]
arranger.format_array = array
arranger.preview_next_string
arranger.consumed.should == []
end
it "should not consumed array" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello" }]
arranger.format_array = array
arranger.preview_next_string.should == "hello"
end
end
describe "Core::Text::Formatted::Arranger#next_string" do
before(:each) do
create_pdf
@arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you?" }]
@arranger.format_array = array
end
it "should raise an error if called after a line was finalized and" +
" before a new line was initialized" do
@arranger.finalize_line
lambda do
@arranger.next_string
end.should.raise(RuntimeError)
end
it "should populate consumed array" do
while string = @arranger.next_string
end
@arranger.consumed[0].should == { :text => "hello " }
@arranger.consumed[1].should == { :text => "world how ",
:styles => [:bold] }
@arranger.consumed[2].should == { :text => "are",
:styles => [:bold, :italic] }
@arranger.consumed[3].should == { :text => " you?" }
end
it "should populate current_format_state array" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you?" }]
arranger.format_array = array
counter = 0
while string = arranger.next_string
case counter
when 0
arranger.current_format_state.should == { }
when 1
arranger.current_format_state.should == { :styles => [:bold] }
when 2
arranger.current_format_state.should == { :styles => [:bold, :italic] }
when 3
arranger.current_format_state.should == { }
end
counter += 1
end
end
end
describe "Core::Text::Formatted::Arranger#retrieve_fragment" do
it "should raise an error if called before finalize_line was called" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you?" }]
arranger.format_array = array
while string = arranger.next_string
end
lambda do
arranger.retrieve_fragment
end.should.raise(RuntimeError)
end
it "should return the consumed fragments in order of consumption" +
" and update" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you?" }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.finalize_line
arranger.retrieve_fragment.text.should == "hello "
arranger.retrieve_fragment.text.should == "world how "
arranger.retrieve_fragment.text.should == "are"
arranger.retrieve_fragment.text.should == " you?"
end
it "should never return a fragment whose text is an empty string" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello\nworld\n\n\nhow are you?" },
{ :text => "\n" },
{ :text => "\n" },
{ :text => "\n" },
{ :text => "" },
{ :text => "fine, thanks." },
{ :text => "" },
{ :text => "\n" },
{ :text => "" }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.finalize_line
while fragment = arranger.retrieve_fragment
fragment.text.should.not.be.empty
end
end
it "should not alter the current font style" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you?" }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.finalize_line
arranger.retrieve_fragment
arranger.current_format_state[:styles].should.be.nil
end
end
describe "Core::Text::Formatted::Arranger#update_last_string" do
it "should update the last retrieved string with what actually fit on" +
"the line and the list of unconsumed with what did not" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you now?", :styles => [:bold, :italic] }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.update_last_string(" you", " now?", nil)
arranger.consumed[3].should == { :text => " you",
:styles => [:bold, :italic] }
arranger.unconsumed.should == [{ :text => " now?",
:styles => [:bold, :italic] }]
end
it "should set the format state to the previously processed fragment" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you now?" }]
arranger.format_array = array
3.times { arranger.next_string }
arranger.current_format_state.should == { :styles => [:bold, :italic] }
arranger.update_last_string("", "are", "-")
arranger.current_format_state.should == { :styles => [:bold] }
end
context "when the entire string was used" do
it "should not push empty string onto unconsumed" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you now?" }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.update_last_string(" you now?", "", nil)
arranger.unconsumed.should == []
end
end
end
describe "Core::Text::Formatted::Arranger#space_count" do
before(:each) do
create_pdf
@arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you?" }]
@arranger.format_array = array
while string = @arranger.next_string
end
end
it "should raise an error if called before finalize_line was called" do
lambda do
@arranger.space_count
end.should.raise(RuntimeError)
end
it "should return the total number of spaces in all fragments" do
@arranger.finalize_line
@arranger.space_count.should == 4
end
end
describe "Core::Text::Formatted::Arranger#finalize_line" do
it "should make it so that all trailing white space fragments " +
"exclude trailing white space" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => " ", :styles => [:bold, :italic] }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.finalize_line
arranger.fragments.length.should == 3
fragment = arranger.retrieve_fragment
fragment.text.should == "hello "
fragment = arranger.retrieve_fragment
fragment.text.should == "world how"
fragment = arranger.retrieve_fragment
fragment.text.should == ""
end
end
describe "Core::Text::Formatted::Arranger#line_width" do
before(:each) do
create_pdf
@arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world", :styles => [:bold] }]
@arranger.format_array = array
while string = @arranger.next_string
end
end
it "should raise an error if called before finalize_line was called" do
lambda do
@arranger.line_width
end.should.raise(RuntimeError)
end
it "should return the width of the complete line" do
@arranger.finalize_line
@arranger.line_width.should.be > 0
end
end
describe "Core::Text::Formatted::Arranger#line_width with character_spacing > 0" do
it "should return a width greater than a line without a character_spacing" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world", :styles => [:bold] }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.finalize_line
base_line_width = arranger.line_width
array = [{ :text => "hello " },
{ :text => "world", :styles => [:bold],
:character_spacing => 7}]
arranger.format_array = array
while string = arranger.next_string
end
arranger.finalize_line
arranger.line_width.should.be > base_line_width
end
end
describe "Core::Text::Formatted::Arranger#line" do
before(:each) do
create_pdf
@arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world", :styles => [:bold] }]
@arranger.format_array = array
while string = @arranger.next_string
end
end
it "should raise an error if called before finalize_line was called" do
lambda do
@arranger.line
end.should.raise(RuntimeError)
end
it "should return the complete line" do
@arranger.finalize_line
@arranger.line.should == "hello world"
end
end
describe "Core::Text::Formatted::Arranger#unconsumed" do
it "should return the original array if nothing was consumed" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you now?" }]
arranger.format_array = array
arranger.unconsumed.should == array
end
it "should return an empty array if everything was consumed" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you now?" }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.unconsumed.should == []
end
end
describe "Core::Text::Formatted::Arranger#finished" do
it "should be false if anything was not printed" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you now?" }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.update_last_string(" you", "now?", nil)
arranger.should.not.be.finished
end
it "should be false if everything was printed" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you now?" }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.should.be.finished
end
end
describe "Core::Text::Formatted::Arranger.max_line_height" do
it "should be the height of the maximum consumed fragment" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic],
:size => 28 },
{ :text => " you now?" }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.finalize_line
arranger.max_line_height.should.be.close(33.32, 0.0001)
end
end
describe "Core::Text::Formatted::Arranger#repack_unretrieved" do
it "should restore part of the original string" do
create_pdf
arranger = Prawn::Core::Text::Formatted::Arranger.new(@pdf)
array = [{ :text => "hello " },
{ :text => "world how ", :styles => [:bold] },
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you now?" }]
arranger.format_array = array
while string = arranger.next_string
end
arranger.finalize_line
arranger.retrieve_fragment
arranger.retrieve_fragment
arranger.repack_unretrieved
arranger.unconsumed.should == [
{ :text => "are", :styles => [:bold, :italic] },
{ :text => " you now?" }]
end
end
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