chromium/third_party/blink/web_tests/tables/mozilla/core/col_widths_auto_autoFix.html

auto table 
<table border>
 <tr>
  <td width=0>0 0 0 0</td>
  <td>auto</td></td></tr>
</table>
<BR>
auto table - fixed cells honored 
<table border>
 <tr>
  <td width=100>100px 100px</td>
  <td>auto</td></tr>
</table>
<BR>
COLSPANS
<BR>
<table border>
 <tr>
  <td colspan=3><img src=../images/raptor.jpg width=600 height=100></td>
  <td>foo</td></tr>
 <tr>
  <td width=10>foo
  <td width=10>bar
  <td>foo
  <td>bar</tr>
</table>
<BR>
<table border cellspacing=5>
 <tr>
  <td colspan=2>auto</td>
  <td width=100>100</td></tr>
 <tr>
  <td width=100>100</td>
  <td width=300>300</td>
  <td>auto</tr>
</table>