docs/code_coverage.md - Issue 1306233003: Markdown style fixes for:

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Issue 1306233003: Markdown style fixes for: (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: style changes Created 5 years, 3 months ago

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1 # Categories of coverage	1 # Code Coverage

2	2

3 * <strong><font color='greeb'>executed</font></strong> - this line of code was hit during execution	3 ## Categories of coverage

4 * <strong><font color='orange'>instrumented</font></strong> - this line of cod e was part of the compilation unit, but not executed

5 * <strong><font color='red'>missing</font></strong> - in a source file, but no t compiled.

6 * ignored - not an executable line, or a line we don't care about

7	4

8 Coverage is calculated as `exe / (inst + miss)`. In general, lines that are in ` miss` should be ignored, but our exclusion rules are not good enough.	5 * executed - this line of code was hit during execution

	6 * instrumented - this line of code was part of the compilation unit, but not

	7 executed

	8 * missing - in a source file, but not compiled.

	9 * ignored - not an executable line, or a line we don't care about

9	10

10 # Buildbots	11 Coverage is calculated as `exe / (inst + miss)`. In general, lines that are in

	12 `miss` should be ignored, but our exclusion rules are not good enough.

11	13

12 Buildbots are currently on the [experimental waterfall](http://build.chromium.or g/buildbot/waterfall.fyi/waterfall). The coverage figures they calculate come fr om running some subset of the chromium testing suite.	14 ## Buildbots

13	15

14 * [Linux](http://build.chromium.org/buildbot/waterfall.fyi/builders/Linux%20Co verage%20(dbg)) - uses `gcov`	16 Buildbots are currently on the

15 * [Windows](http://build.chromium.org/buildbot/waterfall.fyi/builders/Win%20Co verage%20%28dbg%29)	17 [experimental waterfall](http://build.chromium.org/buildbot/waterfall.fyi/waterf all).

16 * [Mac](http://build.chromium.org/buildbot/waterfall.fyi/builders/Mac%20Covera ge%20%28dbg%29)	18 The coverage figures they calculate come from running some subset of the

	19 chromium testing suite.

	20

	21 * [Linux](http://build.chromium.org/buildbot/waterfall.fyi/builders/Linux%20Co verage%20(dbg))

	22 - uses `gcov`

	23 * [Windows](http://build.chromium.org/buildbot/waterfall.fyi/builders/Win%20Co verage%20%28dbg%29)

	24 * [Mac](http://build.chromium.org/buildbot/waterfall.fyi/builders/Mac%20Covera ge%20%28dbg%29)

17	25

18 Also,	26 Also,

19 * [Coverage dashboard](http://build.chromium.org/buildbot/coverage/)

20 * [Example coverage summary](http://build.chromium.org/buildbot/coverage/linux -debug/49936/) - the coverage is calculated at directory and file level, and the directory structure is navigable via the Subdirectories table.

21	27

22 # Calculating coverage locally	28 * [Coverage dashboard](http://build.chromium.org/buildbot/coverage/)

	29 * [Example coverage summary](http://build.chromium.org/buildbot/coverage/linux -debug/49936/)

	30 - the coverage is calculated at directory and file level, and the directory

	31 structure is navigable via the Subdirectories table.

	32

	33 ## Calculating coverage locally

23	34

24 TODO	35 TODO

25	36

26 # Advanced Tips	37 ## Advanced Tips

27	38

28 Sometimes a line of code should never be reached (e.g., `NOTREACHED()`). These c an be marked in the source with `// COV_NF_LINE`. Note that this syntax is exact .	39 Sometimes a line of code should never be reached (e.g., `NOTREACHED()`). These

	40 can be marked in the source with `// COV_NF_LINE`. Note that this syntax is

	41 exact.

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