In test_js1.html when the Flash renderer is being run:

http://brad.com:8080/tests/browser-tests/test_js1.html?svg.render.forceflash=true

In the first image the text 'This text should be hidden' is visible at the
end of the tests. It should be hidden.

This comes from the testStyle() method in test_js.js:

// make some text invisible
  text = getDoc('mySVG').createElementNS(svgns, 'text');
  text.appendChild(getDoc('mySVG').createTextNode('This text should be hidden',
                                                  true));
  text.setAttribute('x', 50);
  text.setAttribute('y', 300);
  svg = getRoot('mySVG');
  svg.appendChild(text);
  text.style.visibility = 'hidden';
  assertEquals('text.style.visibility == hidden', 'hidden',
               text.style.visibility);
  console.log('FIRST IMAGE: You should _not_ see the text '
              + '"This text should be hidden"');

Basically it appears that the text.style.visibility line has regressed.

This might be related to  Issue 305 .