src/cmd/cut.rs

@@ -9,7 +9,7 @@ pub async fn run(
     rm: ReleaseMeta,
 ) -> Result<()> {
     let repo = git2::Repository::open(".")?;
-    let tag = tag.unwrap_or(version::read_version("VERSION".into())?);
+    let tag = tag.unwrap_or(version::read("VERSION".into())?);
     let vtag = format!("v{}", tag);
 
     if git::has_tag(&repo, vtag.clone())? {

src/version/cargo.rs

@@ -27,3 +27,12 @@ pub fn read() -> Result<Option<String>> {
         None => Ok(None)
     }
 }
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn read() {
+        use super::read;
+        read().unwrap().unwrap();
+    }
+}

src/version/mod.rs

@@ -3,18 +3,22 @@ use std::{fs, path::PathBuf};
 
 mod cargo;
 
-pub(crate) fn read_version(fname: PathBuf) -> Result<String> {
+pub(crate) fn read(fname: PathBuf) -> Result<String> {
     let version = cargo::read()
         .unwrap()
-        .unwrap_or(fs::read_to_string(fname)?.trim().into());
+        .unwrap_or(read_fs(fname)?);
     Ok(version)
 }
 
+fn read_fs(fname: PathBuf) -> Result<String> {
+    Ok(fs::read_to_string(fname)?.trim().into())
+}
+
 #[cfg(test)]
 mod tests {
     #[test]
     fn read_version() {
-        let version = super::read_version("./testdata/VERSION".into()).unwrap();
+        let version = super::read_fs("./testdata/VERSION".into()).unwrap();
         assert_eq!(version, "0.1.0");
     }
 }