rust/src/test/ui
Corey Farwell 01ad185071 Rollup merge of #40433 - mattico:test-issue-29595, r=estebank
Add test for issue #29595

Closes #29595

Couldn't get this to run locally, all the compile-fail tests are ignored... let's see what Travis says.
2017-03-17 08:48:49 -04:00
..
check_match
codemap_tests
compare-method
cross-crate-macro-backtrace
did_you_mean
dropck
fmt
hello_world
issue-37311-type-length-limit
lifetime-errors
lifetimes
lint
macros
mismatched_types
missing-items
print_type_sizes
resolve Rollup merge of #40369 - petrochenkov:segspan, r=eddyb 2017-03-12 12:48:46 -04:00
span Rollup merge of #40433 - mattico:test-issue-29595, r=estebank 2017-03-17 08:48:49 -04:00
type-check move related tests to type-check ui test directory 2017-03-10 11:43:34 +03:00
README.md
regions-fn-subtyping-return-static.rs
regions-fn-subtyping-return-static.stderr
update-all-references.sh
update-references.sh

Guide to the UI Tests

The UI tests are intended to capture the compiler's complete output, so that we can test all aspects of the presentation. They work by compiling a file (e.g., hello_world/main.rs), capturing the output, and then applying some normalization (see below). This normalized result is then compared against reference files named hello_world/main.stderr and hello_world/main.stdout. If either of those files doesn't exist, the output must be empty. If the test run fails, we will print out the current output, but it is also saved in build/<target-triple>/test/ui/hello_world/main.stdout (this path is printed as part of the test failure mesage), so you can run diff and so forth.

Editing and updating the reference files

If you have changed the compiler's output intentionally, or you are making a new test, you can use the script update-references.sh to update the references. When you run the test framework, it will report various errors: in those errors is a command you can use to run the update-references.sh script, which will then copy over the files from the build directory and use them as the new reference. You can also just run update-all-references.sh. In both cases, you can run the script with --help to get a help message.

Normalization

The normalization applied is aimed at filenames:

  • the test directory is replaced with $DIR
  • all backslashes () are converted to forward slashes (/) (for windows)