Add tests for types, types_or, exclude_types

src/hook.rs

@@ -15,7 +15,7 @@ use rayon::iter::{IntoParallelIterator, ParallelIterator};
 use regex::Regex;
 use thiserror::Error;
 use tokio::process::Command;
-use tracing::{debug, error};
+use tracing::{debug, error, trace};
 use unicode_width::UnicodeWidthStr;
 use url::Url;
 
@@ -662,9 +662,13 @@ async fn run_hook(
     let filenames: Vec<_> = filenames
         .filter(|&filename| {
             let path = Path::new(filename);
-            // TODO: log error?
-            let file_tags = tags_from_path(path).unwrap_or_default();
-            filter.filter(&file_tags)
+            match tags_from_path(path) {
+                Ok(tags) => filter.filter(&tags),
+                Err(err) => {
+                    trace!("Failed to get tags for {filename}: {err}");
+                    false
+                }
+            }
         })
         .collect();
 

src/identify.rs

@@ -808,5 +808,7 @@ mod tests {
     fn tags_from_filename() {
         let tags = super::tags_from_filename(Path::new("test.py"));
         assert_eq!(tags, vec!["python", "text"]);
+        let tags = super::tags_from_filename(Path::new("data.json"));
+        assert_eq!(tags, vec!["json", "text"]);
     }
 }

tests/run.rs

@@ -199,6 +199,7 @@ fn skips() -> Result<()> {
     Ok(())
 }
 
+/// Test global `files`, `exclude`, and hook level `files`, `exclude`.
 #[test]
 fn files_and_exclude() -> Result<()> {
     let context = TestContext::new();
@@ -264,7 +265,7 @@ fn files_and_exclude() -> Result<()> {
                   - id: trailing-whitespace
                     files: valid.json
                   - id: end-of-file-fixer
-                    exclude: (valid.json|file.txt)
+                    exclude: (valid.json|main.py)
                   - id: check-json
             "
         })?;
@@ -285,17 +286,80 @@ fn files_and_exclude() -> Result<()> {
     - exit code: 1
     - files were modified by this hook
     Fixing valid.json
-    fix end of files.........................................................Failed
-    - hook id: end-of-file-fixer
+    fix end of files.........................................................Passed
+    check json...............................................................Passed
+
+    ----- stderr -----
+    "#);
+
+    Ok(())
+}
+
+/// Test selecting files by type, `types`, `types_or`, and `exclude_types`.
+#[test]
+fn file_types() -> Result<()> {
+    let context = TestContext::new();
+
+    context.init_project();
+
+    let cwd = context.workdir();
+    cwd.child("file.txt").write_str("Hello, world!  ")?;
+    cwd.child("json.json").write_str("{}\n  ")?;
+    cwd.child("main.py").write_str(r#"print "abc"  "#)?;
+
+    // Global files and exclude.
+    context
+        .workdir()
+        .child(".pre-commit-config.yaml")
+        .write_str(indoc::indoc! {r#"
+            repos:
+              - repo: https://github.com/pre-commit/pre-commit-hooks
+                rev: v5.0.0
+                hooks:
+                  - id: trailing-whitespace
+                    types: [ "json" ]
+                  - id: trailing-whitespace
+                    types_or: [ "json", "python" ]
+                  - id: trailing-whitespace
+                    exclude_types: [ "json" ]
+                  - id: trailing-whitespace
+                    types: [ "json" ]
+                    exclude_types: [ "json" ]
+            "#
+        })?;
+
+    Command::new("git")
+        .arg("add")
+        .arg(".")
+        .current_dir(cwd)
+        .assert()
+        .success();
+
+    cmd_snapshot!(context.filters(), context.run(), @r#"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    Cloning https://github.com/pre-commit/[email protected]
+    Installing environment for https://github.com/pre-commit/[email protected]
+    trim trailing whitespace.................................................Failed
+    - hook id: trailing-whitespace
+    - exit code: 1
+    - files were modified by this hook
+    Fixing json.json
+    trim trailing whitespace.................................................Failed
+    - hook id: trailing-whitespace
     - exit code: 1
     - files were modified by this hook
     Fixing main.py
-    check json...............................................................Passed
+    trim trailing whitespace.................................................Failed
+    - hook id: trailing-whitespace
+    - exit code: 1
+    - files were modified by this hook
+    Fixing file.txt
+    trim trailing whitespace.............................(no files to check)Skipped
 
     ----- stderr -----
     "#);
 
     Ok(())
 }
-
-// TODO: test `types`, `types_or`, `exclude_types`