awesome/spec/wibox/widget/textbox_spec.lua

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-- @author Uli Schlachter
-- @copyright 2015 Uli Schlachter
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local textbox = require("wibox.widget.textbox")

local test_dpi_value = 192
_G.screen = {
    { geometry = { x = 0, y = 0, width = 1920, height = 1080 }, index = 1, dpi=test_dpi_value },
}
local beautiful = require("beautiful")
local xresources = require("beautiful.xresources")
beautiful.font = 'Monospace 10'
xresources.get_dpi = function(_) return test_dpi_value end
package.loaded["beautiful"] = beautiful
package.loaded["beautiful.xresources"] = xresources

describe("wibox.widget.textbox", function()
    local widget
    before_each(function()
        widget = textbox()
    end)

    describe("emitting signals", function()
        local redraw_needed, layout_changed
        before_each(function()
            widget:connect_signal("widget::redraw_needed", function()
                redraw_needed = redraw_needed + 1
            end)
            widget:connect_signal("widget::layout_changed", function()
                layout_changed = layout_changed + 1
            end)
            redraw_needed, layout_changed = 0, 0
        end)

        it("text and markup", function()
            assert.is.equal(0, redraw_needed)
            assert.is.equal(0, layout_changed)

            widget:set_text("text")
            assert.is.equal(1, redraw_needed)
            assert.is.equal(1, layout_changed)

            widget:set_text("text")
            assert.is.equal(1, redraw_needed)
            assert.is.equal(1, layout_changed)

            widget:set_text("<b>text</b>")
            assert.is.equal(2, redraw_needed)
            assert.is.equal(2, layout_changed)

            widget:set_markup("<b>text</b>")
            assert.is.equal(3, redraw_needed)
            assert.is.equal(3, layout_changed)

            widget:set_markup("<b>text</b>")
            assert.is.equal(3, redraw_needed)
            assert.is.equal(3, layout_changed)
        end)

        it("set_ellipsize", function()
            assert.is.equal(0, redraw_needed)
            assert.is.equal(0, layout_changed)

            widget:set_ellipsize("end")
            assert.is.equal(0, redraw_needed)
            assert.is.equal(0, layout_changed)

            widget:set_ellipsize("none")
            assert.is.equal(1, redraw_needed)
            assert.is.equal(1, layout_changed)
        end)

        it("set_wrap", function()
            assert.is.equal(0, redraw_needed)
            assert.is.equal(0, layout_changed)

            widget:set_wrap("word_char")
            assert.is.equal(0, redraw_needed)
            assert.is.equal(0, layout_changed)

            widget:set_wrap("char")
            assert.is.equal(1, redraw_needed)
            assert.is.equal(1, layout_changed)
        end)

        it("set_valign", function()
            assert.is.equal(0, redraw_needed)
            assert.is.equal(0, layout_changed)

            widget:set_valign("center")
            assert.is.equal(0, redraw_needed)
            assert.is.equal(0, layout_changed)

            widget:set_valign("top")
            assert.is.equal(1, redraw_needed)
            assert.is.equal(1, layout_changed)
        end)

        it("set_halign", function()
            assert.is.equal(0, redraw_needed)
            assert.is.equal(0, layout_changed)

            widget:set_halign("left")
            assert.is.equal(0, redraw_needed)
            assert.is.equal(0, layout_changed)

            widget:set_halign("right")
            assert.is.equal(1, redraw_needed)
            assert.is.equal(1, layout_changed)
        end)

        it("set_font", function()
            assert.is.equal(0, redraw_needed)
            assert.is.equal(0, layout_changed)

            widget:set_font("foo")
            assert.is.equal(1, redraw_needed)
            assert.is.equal(1, layout_changed)

            widget:set_font("bar")
            assert.is.equal(2, redraw_needed)
            assert.is.equal(2, layout_changed)
        end)
    end)

    describe("auxiliary", function()

        it("can compute text geometry w/default font", function()
            local text = "<b><i>test</i></b>"
            local s = 1
            local pango_geometry = textbox.get_markup_geometry(text, s)
            local actual_textbox_width, actual_textbox_height = textbox(text):get_preferred_size(s)
            assert.is.equal(pango_geometry.width, actual_textbox_width)
            assert.is.equal(pango_geometry.height, actual_textbox_height)
        end)

        it("can compute text geometry w/hardcoded font", function()
            local text = "<span font='Monospace 16'><b><i>test</i></b></span>"
            local s = 1
            local pango_geometry = textbox.get_markup_geometry(text, s)
            local actual_textbox_width, actual_textbox_height = textbox(text):get_preferred_size(s)
            assert.is.equal(pango_geometry.width, actual_textbox_width)
            assert.is.equal(pango_geometry.height, actual_textbox_height)
        end)

    end)

end)

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