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authorTomáš Gavenčiak <gavento@ucw.cz>2018-03-27 14:32:45 +0200
committerWho? Me?! <mark-i-m@users.noreply.github.com>2018-03-27 11:36:14 -0500
commit8c7b06d3cbc78f02ae0c3906f8b8e57c8aeb2daf (patch)
tree0450c4063286785fc3f831da353ab431badc797f /src/doc/rustc-dev-guide
parentae62bb6cf46386e5c593ecf51557d154c22761c6 (diff)
downloadrust-8c7b06d3cbc78f02ae0c3906f8b8e57c8aeb2daf.tar.gz
rust-8c7b06d3cbc78f02ae0c3906f8b8e57c8aeb2daf.zip
Add info on test result caching
Diffstat (limited to 'src/doc/rustc-dev-guide')
-rw-r--r--src/doc/rustc-dev-guide/src/tests/running.md6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/doc/rustc-dev-guide/src/tests/running.md b/src/doc/rustc-dev-guide/src/tests/running.md
index 6bac0121a03..84cead4bf57 100644
--- a/src/doc/rustc-dev-guide/src/tests/running.md
+++ b/src/doc/rustc-dev-guide/src/tests/running.md
@@ -13,6 +13,12 @@ a very long time, and anyway bors / travis will do it for you. (Often,
 I will run this command in the background after opening a PR that I
 think is done, but rarely otherwise. -nmatsakis)
 
+The test results are cached and previously successfull tests are
+`ignored` during testing. The stdout/stderr contents as well as a
+timestamp file for every test can be found under `build/ARCH/test/`.
+To force-rerun a test (e.g. in case the test runner fails to notice
+a change) you can simply remove the timestamp file. 
+
 ## Running a subset of the test suites
 
 When working on a specific PR, you will usually want to run a smaller