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Update web-platform-tests to revision 12d3e15e5ecae695e1216c358d613705fbff6b68

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25
tests/wpt/web-platform-tests/docs/test-style-guidelines.md
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@ -196,14 +196,14 @@ red to denote failure._
#### Overlapped text
Tests of the 'line-height', 'font-size' and similar properties can
Tests of the `line-height`, `font-size` and similar properties can
sometimes be devised in such a way that a failure will result in the
text overlapping.
#### The word "FAIL"
Some properties lend themselves well to this kind of test, for
example 'quotes' and 'content'. The idea is that if the word "FAIL"
example `quotes` and `content`. The idea is that if the word "FAIL"
appears anywhere, something must have gone wrong.
[Example][fail-example]
@ -219,7 +219,7 @@ shapes. This font is especially useful for testing font and text
properties. Without this font it would be very hard to use the
overlapping technique with text.
The font's em-square is exactly square. It's ascent and descent is
The font's em-square is exactly square. Its ascent and descent is
exactly the size of the em square. This means that the font's extent
is exactly the same as its line-height, meaning that it can be
exactly aligned with padding, borders, margins, and so forth.
@ -263,9 +263,9 @@ E.g. Good:
```
__If the test uses the Ahem font, make sure the line-height on block
elements is specified; avoid 'line-height: normal'__. Also, for
elements is specified; avoid `line-height: normal`__. Also, for
absolute reliability, the difference between computed line-height
and computed font-size should be dividable by 2.
and computed font-size should be divisible by 2.
E.g. Bad:
@ -273,14 +273,14 @@ E.g. Bad:
{font: 1.25em Ahem;} /* computed line-height value is 'normal' */
{font: 20px Ahem;} /* computed line-height value is 'normal' */
{font-size: 25px; line-height: 50px;} /* the difference between
computed line-height and computed font-size is not dividable by 2. */
computed line-height and computed font-size is not divisible by 2. */
```
E.g. Good:
``` css
{font-size: 25px; line-height: 51px;} /* the difference between
computed line-height and computed font-size is dividable by 2. */
computed line-height and computed font-size is divisible by 2. */
```
[Example test using Ahem][ahem-example]
@ -347,11 +347,9 @@ In practice, the important thing to decide is when to be methodical
and when to simply test, in an ad hoc fashion, a cross section of
the possibilities.
This example is a methodical test of the :not() pseudo-class with
each attribute selector in turn, first for long values and then for
short values:
http://www.hixie.ch/tests/adhoc/css/selectors/not/010.xml
This is an [example][methodical-test] of a methodical test of the
`:not()` pseudo-class with each attribute selector in turn, first
for long values and then for short values.
### Overlapping
@ -399,7 +397,7 @@ As mentioned many times in this document, red indicates a bug, so
nothing should ever be red in a test.
There is one important exception to this rule... the test for the
'red' value for the color properties!
`red` value for the color properties!
### Unobvious tests
@ -436,3 +434,4 @@ The last [subtest on this page][unobvious-test] shows this problem.
[download-ahem]: http://www.w3.org/Style/CSS/Test/Fonts/Ahem/AHEM____.TTF
[long-test]: http://www.hixie.ch/tests/evil/mixed/lineheight3.html
[unobvious-test]: http://www.w3.org/Style/CSS/Test/CSS1/current/sec525.htm
[methodical-test]: http://www.hixie.ch/tests/adhoc/css/selectors/not/010.xml