traxys/tree-sitter
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

feat(cli): support snapshot testing with --update flag

Browse source 
This PR adds an `--update` flag to the `tree-sitter test` command, which adds the ability to replace the _expected_ output in the corpus.txt with the _actual_ output produced by the parser, that is, we can now simply use this `--update` flag to write all the corresponding parser output back to the corpus.txt, and we just need to check the output without typing its actual sexp.

- use the same output format as `tree-sitter parse`, except there won't be any position information printed.
- the corpus.txt won't be touched if there's no difference between the _expected_ output and the _actual_ output in that file.
- if there're differences between _expected_ and _actual_, _expected_ will be replaced by _actual_ and the whole file will be reformatted, i.e., all the output sexp will be formatted just like the output from `tree-sitter parse` and all the delimiters `===`/`---` will be normalized as 80-column long.
- this flag also works with `--filter` flag.
This commit is contained in:
Ika 2019-09-06 10:57:59 +08:00
parent 9770a0c9f6
commit d88dae7a3e
3 changed files with 216 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

4
cli/src/main.rs
View file

@ -82,6 +82,7 @@ fn run() -> error::Result<()> {
.short("f")
.takes_value(true),
)
.arg(Arg::with_name("update").long("update").short("u"))
.arg(Arg::with_name("debug").long("debug").short("d"))
.arg(Arg::with_name("debug-graph").long("debug-graph").short("D")),
)
@ -150,9 +151,10 @@ fn run() -> error::Result<()> {
let debug = matches.is_present("debug");
let debug_graph = matches.is_present("debug-graph");
let filter = matches.value_of("filter");
let update = matches.is_present("update");
let corpus_path = current_dir.join("corpus");
if let Some(language) = loader.languages_at_path(&current_dir)?.first() {
test::run_tests_at_path(*language, &corpus_path, debug, debug_graph, filter)?;
test::run_tests_at_path(*language, &corpus_path, debug, debug_graph, filter, update)?;
} else {
eprintln!("No language found");
}