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require "test-setup"
require "lunit"
local Cairo = require "oocairo"
module("test.font_opt", lunit.testcase, package.seeall)
function test_create ()
local opt = Cairo.font_options_create()
assert_userdata(opt)
assert_equal("cairo font options object", opt._NAME)
assert_equal(nil, opt:status())
end
function test_double_gc ()
local opt = Cairo.font_options_create()
opt:__gc()
opt:__gc()
end
function test_antialias ()
local opt = Cairo.font_options_create()
assert_error("bad value", function () opt:set_antialias("foo") end)
assert_error("missing value", function () opt:set_antialias(nil) end)
assert_equal("default", opt:get_antialias())
for _, aa in ipairs{ "default", "none", "gray", "subpixel" } do
opt:set_antialias(aa)
assert_equal(aa, opt:get_antialias())
end
-- Boolean values also select reasonable values.
opt:set_antialias(true)
assert_equal("default", opt:get_antialias())
opt:set_antialias(false)
assert_equal("none", opt:get_antialias())
end
function test_subpixel_order ()
local opt = Cairo.font_options_create()
assert_error("bad value", function () opt:set_subpixel_order("foo") end)
assert_error("missing value", function () opt:set_subpixel_order(nil) end)
assert_equal("default", opt:get_subpixel_order())
for _, aa in ipairs{ "default", "rgb", "bgr", "vrgb", "vbgr" } do
opt:set_subpixel_order(aa)
assert_equal(aa, opt:get_subpixel_order())
end
end
function test_hint_style ()
local opt = Cairo.font_options_create()
assert_error("bad value", function () opt:set_hint_style("foo") end)
assert_error("missing value", function () opt:set_hint_style(nil) end)
assert_equal("default", opt:get_hint_style())
for _, aa in ipairs{ "default", "none", "slight", "medium", "full" } do
opt:set_hint_style(aa)
assert_equal(aa, opt:get_hint_style())
end
end
function test_hint_metrics ()
local opt = Cairo.font_options_create()
assert_error("bad value", function () opt:set_hint_metrics("foo") end)
assert_error("missing value", function () opt:set_hint_metrics(nil) end)
assert_equal("default", opt:get_hint_metrics())
for _, aa in ipairs{ "default", "off", "on" } do
opt:set_hint_metrics(aa)
assert_equal(aa, opt:get_hint_metrics())
end
end
function test_hash_and_equality ()
local opt1 = Cairo.font_options_create()
local opt2 = Cairo.font_options_create()
assert_number(opt1:hash())
assert_number(opt2:hash())
-- Different objects, but they are equal because they represent the
-- same options, until they are set to hold different values.
assert_not_equal(tostring(opt1), tostring(opt2))
assert_equal(opt1:hash(), opt2:hash())
assert_true(opt1 == opt2)
opt1:set_antialias("none")
assert_not_equal(opt1:hash(), opt2:hash())
assert_false(opt1 == opt2)
end
function test_copy ()
local opt1 = Cairo.font_options_create()
opt1:set_antialias("gray")
local opt2 = opt1:copy()
assert_not_equal(tostring(opt1), tostring(opt2))
assert_equal(opt1:hash(), opt2:hash())
assert_true(opt1 == opt2)
assert_equal("gray", opt1:get_antialias())
assert_equal("gray", opt2:get_antialias())
opt1:set_antialias("subpixel")
assert_not_equal(opt1:hash(), opt2:hash())
assert_false(opt1 == opt2)
end
function test_merge ()
local opt1 = Cairo.font_options_create()
local opt2 = Cairo.font_options_create()
-- Give them a different non-default option each.
opt1:set_antialias("gray")
opt2:set_subpixel_order("bgr")
opt1:merge(opt2)
-- opt1 should now have both options set.
assert_equal("gray", opt1:get_antialias())
assert_equal("bgr", opt1:get_subpixel_order())
-- opt2 should be unchanged.
assert_equal("default", opt2:get_antialias())
assert_equal("bgr", opt2:get_subpixel_order())
end
-- vi:ts=4 sw=4 expandtab
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