Add tests for clean subcommand

commit-id:ca58bd28

crates/cairo-coverage/src/commands/clean.rs

@@ -33,3 +33,70 @@ pub fn run(args: CleanArgs) -> Result<()> {
     println!("Cleanup complete.");
     Ok(())
 }
+
+#[cfg(test)]
+mod tests {
+    use super::super::clean;
+    use super::CleanArgs;
+    use assert_fs::fixture::PathChild;
+    use assert_fs::TempDir;
+    use test_utils::{CreateFile, Utf8PathBufConversion};
+
+    #[test]
+    fn test_clean_removes_target_files() {
+        let temp_dir = TempDir::new().unwrap();
+
+        let sub_dir = temp_dir.child("sub_dir");
+        let sub_sub_dir = sub_dir.child("nested_dir");
+
+        let file_to_delete_1 = temp_dir.create_file("coverage.lcov");
+        let file_to_delete_2 = sub_dir.create_file("coverage.lcov");
+        let file_to_delete_3 = sub_sub_dir.create_file("coverage.lcov");
+        let non_target_file = temp_dir.create_file("keep_this.txt");
+
+        let clean_args = CleanArgs {
+            root_dir: temp_dir.to_utf8_path_buf(),
+            files_to_delete: "coverage.lcov".into(),
+        };
+
+        clean::run(clean_args).unwrap();
+
+        assert!(!file_to_delete_1.exists());
+        assert!(!file_to_delete_2.exists());
+        assert!(!file_to_delete_3.exists());
+        assert!(non_target_file.exists());
+    }
+
+    #[test]
+    fn test_clean_does_nothing_for_nonexistent_files() {
+        let temp_dir = TempDir::new().unwrap();
+
+        let sub_dir = temp_dir.child("sub_dir");
+        let file_1 = temp_dir.create_file("some_file.txt");
+        let file_2 = sub_dir.create_file("another_file.rs");
+
+        let clean_args = CleanArgs {
+            root_dir: temp_dir.to_utf8_path_buf(),
+            files_to_delete: "nonexistent_file.txt".into(),
+        };
+
+        clean::run(clean_args).unwrap();
+
+        assert!(file_1.exists());
+        assert!(file_2.exists());
+    }
+
+    #[test]
+    fn test_clean_handles_empty_directory() {
+        let temp_dir = TempDir::new().unwrap();
+
+        let clean_args = CleanArgs {
+            root_dir: temp_dir.to_utf8_path_buf(),
+            files_to_delete: "coverage.lcov".into(),
+        };
+
+        clean::run(clean_args).unwrap();
+
+        // No assertion needed—just ensuring no panics or errors occur
+    }
+}