REGRESSION: fast/css/acid2.html fails when run from run-webkit-tests

[Geoffrey Garen]

Since the test passes when you run it on its own, I suspect the run-webkit-tests tool is to blame.

run-webkit-tests fast/css/acid2.html --> pass
run-webkit-tests fast/css/   --> fail
remove everything in fast/css except for acid2, run-webkit-tests fast/css/   --> fail

So maybe this has something to do with how the script handles directories?

Here's the diff:

--- /Volumes/Home/ggaren/Labyrinth/LayoutTests/fast/css/acid2-expected.txt
	2005-10-17 17:16:47.000000000 -0700
+++ /tmp/layout-test-results/fast/css/acid2-actual.txt	2005-10-24 15:34:58.000000000 -0700
@@ -48,12 +48,11 @@
 layer at (108,2686) size 96x12
   RenderBlock (positioned) {BLOCKQUOTE} at (72,48) size 96x12 [border: none (24px solid #000000) 
none (24px solid #000000)]
     RenderBlock (floating) {ADDRESS} at (24,0) size 48x12 [bgcolor=#FFFF00]
-layer at (84,2710) size 144x24
+layer at (84,2710) size 144x30
   RenderBlock (positioned) {DIV} at (48,72) size 144x24 [bgcolor=#FF0000]
     RenderBlock {DIV} at (0,0) size 144x0
-      RenderInline {OBJECT} at (0,0) size 131x14
-        RenderInline {OBJECT} at (0,0) size 131x14
-          RenderImage {OBJECT} at (13,0) size 131x24 [border: (12px solid #000000) none]
+      RenderInline {OBJECT} at (0,0) size 90x14
+        RenderPartObject {OBJECT} at (54,0) size 90x30
     RenderBlock (floating) {DIV} at (0,0) size 144x24 [border: (12px solid #FF0000) none (12px solid 
#000000)]
     RenderBlock {DIV} at (0,0) size 144x24 [border: (24px solid #FFFF00)]
 layer at (84,2782) size 144x24

[Darin Adler]

This is super-irritating since it means we have a failing layout test.

I don't think it's the run-webkit-tests script. I think instead it's something about reusing the same 
WebView used to load a previous test.

[Darin Adler]

P1 because it's so inconvenient.

FWIW, a very unscientific test using nightly builds places the regression between 2005-10-20 19:27 PDT 
and 2005-10-21 19:27 PDT.

[Darin Adler]

Geoff, can you still reproduce this problem?

[Geoffrey Garen]

Yes, I can still repro.

[Geoffrey Garen]

I should be more specific.

I can still reproduce the underlying problem (fast/css and fast/css/acid2.html produce different results in 
the same manner they used to). However, it looks like someone checked in new test results so that run-
webkit-tests now passes and run-webkit-tests fast/css/acid2.html now fails.

[Alice Liu]

<rdar://problem/4404328>

[Joost de Valk (AlthA)]

Adding Regression keyword.

[Darin Adler]

I think it's unlikely that this issue affects real-world websites, and it's not a practical day-to-day problem, so I'm removing the "P1" from this bug.

My fix for bug 7693 should finally fix this.