html/073scenario_screen_test.mu.html


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<pre id='vimCodeElement'>
<span class="Comment"># To check our support for screens in scenarios, rewrite tests from print.mu</span>

scenario print-character-at-top-left2 [
  assume-screen <span class="Constant">3:literal/width</span>, <span class="Constant">2:literal/height</span>
  run [
    screen:address<span class="Special"> &lt;- </span>print-character screen:address, <span class="Constant">97:literal</span>  <span class="Comment"># 'a'</span>
  ]
  screen-should-contain [
   <span class="Constant"> .a  .</span>
   <span class="Constant"> .   .</span>
  ]
]

scenario clear-line-erases-printed-characters2 [
  assume-screen <span class="Constant">5:literal/width</span>, <span class="Constant">3:literal/height</span>
  run [
    <span class="Comment"># print a character</span>
    screen:address<span class="Special"> &lt;- </span>print-character screen:address, <span class="Constant">97:literal</span>  <span class="Comment"># 'a'</span>
    <span class="Comment"># move cursor to start of line</span>
    screen:address<span class="Special"> &lt;- </span>move-cursor screen:address, <span class="Constant">0:literal/row</span>, <span class="Constant">0:literal/column</span>
    <span class="Comment"># clear line</span>
    screen:address<span class="Special"> &lt;- </span>clear-line screen:address
  ]
  screen-should-contain [
   <span class="Constant"> .     .</span>
   <span class="Constant"> .     .</span>
   <span class="Constant"> .     .</span>
  ]
]
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