Avoid scaling a zero-sized image

LayoutTests/imported/web-platform-tests/html/semantics/embedded-content/the-img-element/srcset/parse-a-srcset-attribute-expected.txt

Index: LayoutTests/imported/web-platform-tests/html/semantics/embedded-content/the-img-element/srcset/parse-a-srcset-attribute-expected.txt
diff --git a/LayoutTests/imported/web-platform-tests/html/semantics/embedded-content/the-img-element/srcset/parse-a-srcset-attribute-expected.txt b/LayoutTests/imported/web-platform-tests/html/semantics/embedded-content/the-img-element/srcset/parse-a-srcset-attribute-expected.txt
index fb9144518920a84d0282f151740906d1c9998555..8e5db1f17a0459915a658a2f03eb28bef86aee4b 100644
--- a/LayoutTests/imported/web-platform-tests/html/semantics/embedded-content/the-img-element/srcset/parse-a-srcset-attribute-expected.txt
+++ b/LayoutTests/imported/web-platform-tests/html/semantics/embedded-content/the-img-element/srcset/parse-a-srcset-attribute-expected.txt
@@ -220,4 +220,414 @@ CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor
 CONSOLE ERROR: Dropped srcset candidate data:,a
 CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
 CONSOLE ERROR: Dropped srcset candidate data:,a
-CONSOLE ERROR: Failed parsing 'srcset' attribute value s
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'x' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since it has an unknown descriptor.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+CONSOLE ERROR: Failed parsing 'srcset' attribute value since its 'h' descriptor is invalid.
+CONSOLE ERROR: Dropped srcset candidate data:,a
+This is a testharness.js-based test.
+PASS "" 
+PASS "," 
+PASS ",,," 
+PASS "  data:,a  1x  " 
+PASS "\t\tdata:,a\t\t1x\t\t" 
+PASS "\n\ndata:,a\n\n1x\n\n" 
+PASS "\v\vdata:,a\v\v1x\v\v" 
+PASS "\f\fdata:,a\f\f1x\f\f" 
+PASS "\r\rdata:,a\r\r1x\r\r" 
+PASS "\x0e\x0edata:,a\x0e\x0e1x\x0e\x0e" 
+PASS "\x0f\x0fdata:,a\x0f\x0f1x\x0f\x0f" 
+PASS "\x10\x10data:,a\x10\x101x\x10\x10" 
+PASS "data:,a" 
+PASS "data:,a " 
+PASS "data:,a ," 
+PASS "data:,a," 
+PASS "data:,a, " 
+PASS "data:,a,,," 
+PASS "data:,a,, , " 
+PASS " data:,a" 
+PASS ",,,data:,a" 
+PASS " , ,,data:,a" 
+PASS " data:,a" 
+PASS "data:,a " 
+PASS "data:,a 1x" 
+PASS "data:,a 1x " 
+PASS "data:,a 1x," 
+PASS "data:,a ( , data:,b 1x, ), data:,c" 
+PASS "data:,a ((( , data:,b 1x, ), data:,c" 
+PASS "data:,a [ , data:,b 1x, ], data:,c" 
+PASS "data:,a { , data:,b 1x, }, data:,c" 
+PASS "data:,a \" , data:,b 1x, \", data:,c" 
+PASS "data:,a \\,data:;\,b, data:,c" 
+PASS "data:,a, data:,b (" 
+PASS "data:,a, data:,b (  " 
+PASS "data:,a, data:,b (," 
+PASS "data:,a, data:,b (x" 
+PASS "data:,a, data:,b ()" 
+PASS "data:,a (, data:,b" 
+PASS "data:,a /*, data:,b, data:,c */" 
+PASS "data:,a //, data:,b" 
+PASS "data:,a foo" 
+PASS "data:,a foo foo" 
+PASS "data:,a foo 1x" 
+PASS "data:,a foo 1x foo" 
+PASS "data:,a foo 1w" 
+PASS "data:,a foo 1w foo" 
+PASS "data:,a 1x 1x" 
+PASS "data:,a 1w 1w" 
+PASS "data:,a 1w 1x" 
+PASS "data:,a 1x 1w" 
+PASS "data:,a 1w 1h" 
+PASS "data:,a 1h 1w" 
+PASS "data:,a 1h 1h" 
+PASS "data:,a 1h 1x" 
+PASS "data:,a 1h 1w 1x" 
+PASS "data:,a 1x 1w 1h" 
+PASS "data:,a 1w" 
+PASS "data:,a 1h" 
+PASS "data:,a 1h foo" 
+PASS "data:,a foo 1h" 
+PASS "data:,a 0w" 
+PASS "data:,a -1w" 
+PASS "data:,a 1w -1w" 
+PASS "data:,a 1.0w" 
+PASS "data:,a 1w 1.0w" 
+PASS "data:,a 1e0w" 
+PASS "data:,a 1w 1e0w" 
+PASS "data:,a 1www" 
+PASS "data:,a 1w 1www" 
+PASS "data:,a +1w" 
+PASS "data:,a 1w +1w" 
+PASS "data:,a 1W" 
+PASS "data:,a 1w 1W" 
+PASS "data:,a Infinityw" 
+PASS "data:,a 1w Infinityw" 
+PASS "data:,a NaNw" 
+PASS "data:,a 1w NaNw" 
+PASS "data:,a 0x1w" 
+PASS "data:,a 0X1w" 
+PASS "data:,a 1\x01w" (trailing U+0001) 
+PASS "data:,a 1 w" (trailing U+00A0) 
+PASS "data:,a 1 w" (trailing U+1680) 
+PASS "data:,a 1 w" (trailing U+2000) 
+PASS "data:,a 1 w" (trailing U+2001) 
+PASS "data:,a 1 w" (trailing U+2002) 
+PASS "data:,a 1 w" (trailing U+2003) 
+PASS "data:,a 1 w" (trailing U+2004) 
+PASS "data:,a 1 w" (trailing U+2005) 
+PASS "data:,a 1 w" (trailing U+2006) 
+PASS "data:,a 1 w" (trailing U+2007) 
+PASS "data:,a 1 w" (trailing U+2008) 
+PASS "data:,a 1 w" (trailing U+2009) 
+PASS "data:,a 1 w" (trailing U+200A) 
+PASS "data:,a 1‌w" (trailing U+200C) 
+PASS "data:,a 1‍w" (trailing U+200D) 
+PASS "data:,a 1 w" (trailing U+202F) 
+PASS "data:,a 1 w" (trailing U+205F) 
+PASS "data:,a 1　w" (trailing U+3000) 
+PASS "data:,a 1w" (trailing U+FEFF) 
+PASS "data:,a \x011w" (leading U+0001) 
+PASS "data:,a  1w" (leading U+00A0) 
+PASS "data:,a  1w" (leading U+1680) 
+PASS "data:,a  1w" (leading U+2000) 
+PASS "data:,a  1w" (leading U+2001) 
+PASS "data:,a  1w" (leading U+2002) 
+PASS "data:,a  1w" (leading U+2003) 
+PASS "data:,a  1w" (leading U+2004) 
+PASS "data:,a  1w" (leading U+2005) 
+PASS "data:,a  1w" (leading U+2006) 
+PASS "data:,a  1w" (leading U+2007) 
+PASS "data:,a  1w" (leading U+2008) 
+PASS "data:,a  1w" (leading U+2009) 
+PASS "data:,a  1w" (leading U+200A) 
+PASS "data:,a ‌1w" (leading U+200C) 
+PASS "data:,a ‍1w" (leading U+200D) 
+PASS "data:,a  1w" (leading U+202F) 
+PASS "data:,a  1w" (leading U+205F) 
+PASS "data:,a 　1w" (leading U+3000) 
+PASS "data:,a 1w" (leading U+FEFF) 
+PASS "data:,a 0x" 
+PASS "data:,a -0x" 
+PASS "data:,a 1x -0x" 
+PASS "data:,a -1x" 
+PASS "data:,a 1x -1x" 
+PASS "data:,a 1e0x" 
+PASS "data:,a 1E0x" 
+PASS "data:,a 1e-1x" 
+PASS "data:,a 1.5e1x" 
+PASS "data:,a -x" 
+PASS "data:,a .x" 
+PASS "data:,a -.x" 
+FAIL "data:,a 1.x" assert_equals: expected "" but got "data:,a"

[Yoav Weiss, 2015/08/19 22:09:57]

This failure is due to the fact that "1." is something we consider a legit
float, contrary to the spec.
I've tried to fix that in the past, but a bunch of tests failed as a result.

+PASS "data:,a .5x" 
+PASS "data:,a .5e1x" 
+PASS "data:,a 1x 1.5e1x" 
+PASS "data:,a 1x 1e1.5x" 
+PASS "data:,a 1.0x" 
+PASS "data:,a 1x 1.0x" 
+PASS "data:,a +1x" 
+PASS "data:,a 1X" 
+PASS "data:,a Infinityx" 
+PASS "data:,a NaNx" 
+PASS "data:,a 0x1x" 
+PASS "data:,a 0X1x" 
+PASS "data:,a 1\x01x" (trailing U+0001) 
+PASS "data:,a 1 x" (trailing U+00A0) 
+PASS "data:,a 1 x" (trailing U+1680) 
+PASS "data:,a 1 x" (trailing U+2000) 
+PASS "data:,a 1 x" (trailing U+2001) 
+PASS "data:,a 1 x" (trailing U+2002) 
+PASS "data:,a 1 x" (trailing U+2003) 
+PASS "data:,a 1 x" (trailing U+2004) 
+PASS "data:,a 1 x" (trailing U+2005) 
+PASS "data:,a 1 x" (trailing U+2006) 
+PASS "data:,a 1 x" (trailing U+2007) 
+PASS "data:,a 1 x" (trailing U+2008) 
+PASS "data:,a 1 x" (trailing U+2009) 
+PASS "data:,a 1 x" (trailing U+200A) 
+PASS "data:,a 1‌x" (trailing U+200C) 
+PASS "data:,a 1‍x" (trailing U+200D) 
+PASS "data:,a 1 x" (trailing U+202F) 
+PASS "data:,a 1 x" (trailing U+205F) 
+PASS "data:,a 1　x" (trailing U+3000) 
+PASS "data:,a 1x" (trailing U+FEFF) 
+PASS "data:,a \x011x" (leading U+0001) 
+PASS "data:,a  1x" (leading U+00A0) 
+PASS "data:,a  1x" (leading U+1680) 
+PASS "data:,a  1x" (leading U+2000) 
+PASS "data:,a  1x" (leading U+2001) 
+PASS "data:,a  1x" (leading U+2002) 
+PASS "data:,a  1x" (leading U+2003) 
+PASS "data:,a  1x" (leading U+2004) 
+PASS "data:,a  1x" (leading U+2005) 
+PASS "data:,a  1x" (leading U+2006) 
+PASS "data:,a  1x" (leading U+2007) 
+PASS "data:,a  1x" (leading U+2008) 
+PASS "data:,a  1x" (leading U+2009) 
+PASS "data:,a  1x" (leading U+200A) 
+PASS "data:,a ‌1x" (leading U+200C) 
+PASS "data:,a ‍1x" (leading U+200D) 
+PASS "data:,a  1x" (leading U+202F) 
+PASS "data:,a  1x" (leading U+205F) 
+PASS "data:,a 　1x" (leading U+3000) 
+PASS "data:,a 1x" (leading U+FEFF) 
+PASS "data:,a 1w 0h" 
+PASS "data:,a 1w -1h" 
+PASS "data:,a 1w 1.0h" 
+PASS "data:,a 1w 1e0h" 
+PASS "data:,a 1w 1hhh" 
+PASS "data:,a 1w +1h" 
+PASS "data:,a 1w 1H" 
+PASS "data:,a 1w Infinityh" 
+PASS "data:,a 1w NaNh" 
+PASS "data:,a 0x1h" 
+PASS "data:,a 0X1h" 
+PASS "data:,a 1w 1\x01h" (trailing U+0001) 
+PASS "data:,a 1w 1 h" (trailing U+00A0) 
+PASS "data:,a 1w 1 h" (trailing U+1680) 
+PASS "data:,a 1w 1 h" (trailing U+2000) 
+PASS "data:,a 1w 1 h" (trailing U+2001) 
+PASS "data:,a 1w 1 h" (trailing U+2002) 
+PASS "data:,a 1w 1 h" (trailing U+2003) 
+PASS "data:,a 1w 1 h" (trailing U+2004) 
+PASS "data:,a 1w 1 h" (trailing U+2005) 
+PASS "data:,a 1w 1 h" (trailing U+2006) 
+PASS "data:,a 1w 1 h" (trailing U+2007) 
+PASS "data:,a 1w 1 h" (trailing U+2008) 
+PASS "data:,a 1w 1 h" (trailing U+2009) 
+PASS "data:,a 1w 1 h" (trailing U+200A) 
+PASS "data:,a 1w 1‌h" (trailing U+200C) 
+PASS "data:,a 1w 1‍h" (trailing U+200D) 
+PASS "data:,a 1w 1 h" (trailing U+202F) 
+PASS "data:,a 1w 1 h" (trailing U+205F) 
+PASS "data:,a 1w 1　h" (trailing U+3000) 
+PASS "data:,a 1w 1h" (trailing U+FEFF) 
+PASS "data:,a 1w \x011h" (leading U+0001) 
+PASS "data:,a 1w  1h" (leading U+00A0) 
+PASS "data:,a 1w  1h" (leading U+1680) 
+PASS "data:,a 1w  1h" (leading U+2000) 
+PASS "data:,a 1w  1h" (leading U+2001) 
+PASS "data:,a 1w  1h" (leading U+2002) 
+PASS "data:,a 1w  1h" (leading U+2003) 
+PASS "data:,a 1w  1h" (leading U+2004) 
+PASS "data:,a 1w  1h" (leading U+2005) 
+PASS "data:,a 1w  1h" (leading U+2006) 
+PASS "data:,a 1w  1h" (leading U+2007) 
+PASS "data:,a 1w  1h" (leading U+2008) 
+PASS "data:,a 1w  1h" (leading U+2009) 
+PASS "data:,a 1w  1h" (leading U+200A) 
+PASS "data:,a 1w ‌1h" (leading U+200C) 
+PASS "data:,a 1w ‍1h" (leading U+200D) 
+PASS "data:,a 1w  1h" (leading U+202F) 
+PASS "data:,a 1w  1h" (leading U+205F) 
+PASS "data:,a 1w 　1h" (leading U+3000) 
+PASS "data:,a 1w 1h" (leading U+FEFF) 
+Harness: the test ran to completion.
+