feat: regex pattern additional syntax support (#43)

.github/workflows/ci.yml

@@ -57,8 +57,7 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-        # 1.65 is the MSRV
-        rust-version: ["1.65", stable]
+        rust-version: ["1.66", stable]
       fail-fast: false
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4

Cargo.toml

@@ -9,12 +9,12 @@ readme = "README.md"
 edition = "2021"
 categories = ["development-tools::testing"]
 keywords = ["datatest", "data-driven-tests", "test-harness"]
-rust-version = "1.65"
+rust-version = "1.66"
 
 [dependencies]
 camino = "1.1.6"
+fancy-regex = "0.13.0"
 libtest-mimic = "0.7.2"
-regex = "1.10.4"
 walkdir = "2.5.0"
 
 [[test]]

src/runner.rs

@@ -52,13 +52,20 @@ impl Requirements {
     /// Scans all files in a given directory, finds matching ones and generates a test descriptor
     /// for each of them.
     fn expand(&self) -> Vec<Trial> {
-        let re = regex::Regex::new(&self.pattern)
+        let re = fancy_regex::Regex::new(&self.pattern)
             .unwrap_or_else(|_| panic!("invalid regular expression: '{}'", self.pattern));
 
         let tests: Vec<_> = utils::iterate_directory(&self.root)
             .filter_map(|path_res| {
                 let path = path_res.expect("error while iterating directory");
-                if re.is_match(path.as_str()) {
+                if re.is_match(path.as_str()).unwrap_or_else(|error| {
+                    panic!(
+                        "error matching pattern '{}' against path '{}' : {}",
+                        self.pattern,
+                        path.as_str(),
+                        error
+                    )
+                }) {
                     let testfn = self.test;
                     let name = utils::derive_test_name(&self.root, &path, &self.test_name);
                     Some(Trial::test(name, move || {

tests/example.rs

@@ -20,8 +20,8 @@ fn test_artifact_utf8(path: &Utf8Path) -> Result<()> {
 datatest_stable::harness!(
     test_artifact,
     "tests/files",
-    r"^.*/*",
+    r"^.*(?<!\.skip)\.txt$", // this regex pattern skips .skip.txt files
     test_artifact_utf8,
     "tests/files",
-    r"^.*/*",
+    r"^.*\.txt$", // this regexpattern matches all files
 );

tests/files/c.skip.txt

@@ -0,0 +1 @@
+baz foo