prompt: Unit test the example

lib/awful/prompt.lua

@@ -1,21 +1,13 @@
 ---------------------------------------------------------------------------
 --- Prompt module for awful.
 --
+-- **Basic usage**:
+--
 -- By default, `rc.lua` will create one `awful.widget.prompt` per screen called
 -- `mypromptbox`. It is used for both the command execution (`mod4+r`) and
 -- Lua prompt (`mod4+x`). It can be re-used for random inputs using:
 --
---    -- Create a shortcut function
---    local function echo_test()
---        awful.prompt.run {
---            prompt       = "Echo: ",
---            textbox      = mouse.screen.mypromptbox.widget,
---            exe_callback = function(input)
---                if not input or #input == 0 then return end
---                naughty.notify{ text = "The input was: "..input }
---            end
---        }
---    end
+-- @DOC_wibox_awidget_prompt_simple_EXAMPLE@
 --
 --     -- Then **IN THE globalkeys TABLE** add a new shortcut
 --     awful.key({ modkey }, "e", echo_test,

tests/examples/wibox/awidget/prompt/simple.lua

@@ -0,0 +1,31 @@
+local parent    = ... --DOC_NO_USAGE --DOC_HIDE
+local wibox     = require( "wibox"     ) --DOC_HIDE
+local awful     = { prompt = require("awful.prompt") }--DOC_HIDE
+local beautiful = require( "beautiful" ) --DOC_HIDE
+local naughty   = {} --DOC_HIDE
+
+    local atextbox = wibox.widget.textbox()
+
+    -- Create a shortcut function
+    local function echo_test()
+        awful.prompt.run {
+            prompt       = "<b>Echo: </b>",
+            text         = "default command",
+            bg_cursor    = "#ff0000",
+            -- To use the default `rc.lua` prompt:
+            --textbox      = mouse.screen.mypromptbox.widget,
+            textbox      = atextbox,
+            exe_callback = function(input)
+                if not input or #input == 0 then return end
+                naughty.notify{ text = "The input was: "..input }
+            end
+        }
+    end
+
+echo_test() --DOC_HIDE
+
+parent:add( wibox.widget {    --DOC_HIDE
+    atextbox,  --DOC_HIDE
+    bg = beautiful.bg_normal,  --DOC_HIDE
+    widget = wibox.container.background  --DOC_HIDE
+}) --DOC_HIDE