For non-editable content, selection editor commands are disabled

LayoutTests/editing/execCommand/script-tests/enabling-and-selection-2.js

 description("This tests enabling of non-execCommand commands based on whether the selection is a caret or range or in editable content.");
 
 var nonEditableParagraph = document.createElement("p");
 nonEditableParagraph.appendChild(document.createTextNode("x"));
 document.body.appendChild(nonEditableParagraph);
 
 var editableParagraph = document.createElement("p");
 editableParagraph.appendChild(document.createTextNode("x"));
 editableParagraph.setAttribute("contentEditable", "true");
 document.body.appendChild(editableParagraph);
@@ skipping 55 matching lines @@
     if (summaryInteger === 0x06)
         return "richly editable";
     if (summaryInteger === 0x02)
         return "richly editable caret";
     if (summaryInteger === 0x04)
         return "richly editable range";
 
     if (summaryInteger === 0x5E)
         return "visible";
 
+    if (summaryInteger === 0x7E)
+        return "selectable, not necessarily editable";
+
     return summaryInteger;
 }
 
 shouldBe("whenEnabled('Print')", "'always'");
 shouldBe("whenEnabled('SelectAll')", "'always'");
 
 shouldBe("whenEnabled('Transpose')", "'caret'");
 
 shouldBe("whenEnabled('Copy')", "'range'");
 
@@ skipping 48 matching lines @@
 shouldBe("whenEnabled('MakeTextWritingDirectionRightToLeft')", "'richly editable'");
 shouldBe("whenEnabled('Outdent')", "'richly editable'");
 shouldBe("whenEnabled('Subscript')", "'richly editable'");
 shouldBe("whenEnabled('Superscript')", "'richly editable'");
 shouldBe("whenEnabled('Underline')", "'richly editable'");
 shouldBe("whenEnabled('Unscript')", "'richly editable'");
 
 shouldBe("whenEnabled('Paste')", "'editable'");
 
 shouldBe("whenEnabled('MoveBackwardAndModifySelection')", "'visible'");
-shouldBe("whenEnabled('MoveDownAndModifySelection')", "'visible'");
+shouldBe("whenEnabled('MoveDownAndModifySelection')", "'selectable, not necessarily editable'");
 shouldBe("whenEnabled('MoveForwardAndModifySelection')", "'visible'");
-shouldBe("whenEnabled('MoveLeftAndModifySelection')", "'visible'");
+shouldBe("whenEnabled('MoveLeftAndModifySelection')", "'selectable, not necessarily editable'");
 shouldBe("whenEnabled('MoveParagraphBackwardAndModifySelection')", "'visible'");
 shouldBe("whenEnabled('MoveParagraphForwardAndModifySelection')", "'visible'");
-shouldBe("whenEnabled('MoveRightAndModifySelection')", "'visible'");
+shouldBe("whenEnabled('MoveRightAndModifySelection')", "'selectable, not necessarily editable'");
 shouldBe("whenEnabled('MoveToBeginningOfDocumentAndModifySelection')", "'visible'");
-shouldBe("whenEnabled('MoveToBeginningOfLineAndModifySelection')", "'visible'");
+shouldBe("whenEnabled('MoveToBeginningOfLineAndModifySelection')", "'selectable, not necessarily editable'");
 shouldBe("whenEnabled('MoveToBeginningOfParagraphAndModifySelection')", "'visible'");
 shouldBe("whenEnabled('MoveToBeginningOfSentenceAndModifySelection')", "'visible'");
 shouldBe("whenEnabled('MoveToEndOfDocumentAndModifySelection')", "'visible'");
-shouldBe("whenEnabled('MoveToEndOfLineAndModifySelection')", "'visible'");
+shouldBe("whenEnabled('MoveToEndOfLineAndModifySelection')", "'selectable, not necessarily editable'");
 shouldBe("whenEnabled('MoveToEndOfParagraphAndModifySelection')", "'visible'");
 shouldBe("whenEnabled('MoveToEndOfSentenceAndModifySelection')", "'visible'");
-shouldBe("whenEnabled('MoveUpAndModifySelection')", "'visible'");
+shouldBe("whenEnabled('MoveUpAndModifySelection')", "'selectable, not necessarily editable'");
 shouldBe("whenEnabled('MoveWordBackwardAndModifySelection')", "'visible'");
 shouldBe("whenEnabled('MoveWordForwardAndModifySelection')", "'visible'");
-shouldBe("whenEnabled('MoveWordLeftAndModifySelection')", "'visible'");
-shouldBe("whenEnabled('MoveWordRightAndModifySelection')", "'visible'");
+shouldBe("whenEnabled('MoveWordLeftAndModifySelection')", "'selectable, not necessarily editable'");
+shouldBe("whenEnabled('MoveWordRightAndModifySelection')", "'selectable, not necessarily editable'");
 shouldBe("whenEnabled('SelectLine')", "'visible'");
 shouldBe("whenEnabled('SelectParagraph')", "'visible'");
 shouldBe("whenEnabled('SelectSentence')", "'visible'");
 shouldBe("whenEnabled('SelectWord')", "'visible'");
 shouldBe("whenEnabled('SetMark')", "'visible'");
 
 shouldBe("whenEnabled('OverWrite')", "'richly editable'");
 
 document.body.removeChild(nonEditableParagraph);
 document.body.removeChild(editableParagraph);
 document.body.removeChild(editablePlainTextParagraph);
 
 var successfullyParsed = true;