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class ContextTest < Test::Unit::TestCase
include Helper
def setup
@output = StringIO.new
@surface = Cairo::PDFSurface.new(@output, 10, 10)
end
def test_new_and_destroy
context = Cairo::Context.new(@surface)
@surface.destroy
assert_not_equal("%%EOF\n", @output.string[-6..-1])
assert {not context.destroyed?}
context.destroy
assert {context.destroyed?}
assert_equal("%%EOF\n", @output.string[-6..-1])
end
def test_create_with_block
Cairo::Context.create(@surface) do |context|
@surface.destroy
assert_not_equal("%%EOF\n", @output.string[-6..-1])
end
assert_equal("%%EOF\n", @output.string[-6..-1])
end
def test_create_with_block_and_destroy
assert_nothing_raised do
Cairo::Context.create(@surface) do |context|
context.destroy
end
end
end
def test_font_face
only_cairo_version(1, 7, 2)
context = Cairo::Context.new(@surface)
assert_kind_of(Cairo::FontFace, context.font_face)
face = Cairo::ToyFontFace.new("serif")
context.font_face = face
assert_equal("serif", context.font_face.family)
face = Cairo::ToyFontFace.new("sans")
context.font_face = face
assert_equal("sans", context.font_face.family)
end
def test_text_to_glyphs
only_cairo_version(1, 7, 2)
surface = Cairo::PDFSurface.new(StringIO.new, 10, 10)
context = Cairo::Context.new(surface)
scaled_font = Cairo::ScaledFont.new(context.font_face,
Cairo::Matrix.identity,
Cairo::Matrix.identity,
Cairo::FontOptions.new)
utf8 = "text"
glyphs, clusters, backward = scaled_font.text_to_glyphs(0, 0, utf8)
assert_nothing_raised do
context.show_text_glyphs(utf8, glyphs, clusters, backward)
end
end
def test_select_font_face
only_cairo_version(1, 7, 2)
context = Cairo::Context.new(@surface)
face = context.font_face
default_font_family = ""
default_font_family = "Helvetica" if quartz?
default_font_family = "Arial" if windows?
assert_equal([default_font_family,
Cairo::FONT_SLANT_NORMAL,
Cairo::FONT_WEIGHT_NORMAL],
[face.family, face.slant, face.weight])
context.select_font_face
face = context.font_face
assert_equal([default_font_family,
Cairo::FONT_SLANT_NORMAL,
Cairo::FONT_WEIGHT_NORMAL],
[face.family, face.slant, face.weight])
context.select_font_face(:serif, :italic, :bold)
face = context.font_face
assert_equal(["serif", Cairo::FONT_SLANT_ITALIC, Cairo::FONT_WEIGHT_BOLD],
[face.family, face.slant, face.weight])
end
def test_select_font_face_with_invalid_family_name
context = Cairo::Context.new(@surface)
exception = assert_raise(ArgumentError) do
context.select_font_face([999])
end
assert_equal("family name should be nil, String or Symbol: [999]",
exception.message)
end
sub_test_case("#tag") do
setup do
only_cairo_version(1, 15, 4)
only_not_windows
end
test("LINK") do
Cairo::Context.create(@surface) do |context|
context.tag(Cairo::Tag::LINK, "uri='http://localhost/'") do
context.show_text("localhost")
end
@surface.finish
end
document = Poppler::Document.new(@output.string)
uris = document[0].link_mapping.collect do |mapping|
mapping.action.uri
end
assert_equal(["http://localhost/"],
uris)
end if defined?(Poppler)
end
def test_raw_address
context = Cairo::Context.new(@surface)
assert do
context.raw_address > 0
end
end
def test_hairline
only_cairo_version(1, 17, 6)
Cairo::Context.create(@surface) do |context|
assert do
not context.hairline?
end
context.hairline = true
assert do
context.hairline?
end
end
end
end
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