Replaced filename string with PathBuf.

src/morethantext/cache.rs

@@ -1,7 +1,7 @@
 use super::{DBError, FileData, SessionData, Store};
 use async_std::{
     fs::{read, remove_file, write},
-    path::Path,
+    path::{Path, PathBuf},
 };
 use rand::{distributions::Alphanumeric, thread_rng, Rng};
 use std::{
@@ -10,6 +10,8 @@ use std::{
     time::{Duration, Instant},
 };
 
+const ENTRY: &str = "EntryPoint";
+
 #[derive(Clone)]
 enum DataType {
     DBMap(Store),
@@ -86,16 +88,21 @@ impl FileData<Self> for DataType {
 
 struct Entry {
     data: DataType,
-    filename: String,
+    filename: PathBuf,
     last_used: Cell<Instant>,
 }
 
 impl Entry {
-    async fn new(filename: String, data: DataType) -> Result<Self, DBError> {
+    async fn new<P>(filename: P, data: DataType) -> Result<Self, DBError>
-        if Path::new(&filename).exists().await {
+    where
+        P: Into<PathBuf>,
+    {
+        let pathbuf = filename.into();
+        if pathbuf.as_path().exists().await {
+            // if Path::new(&filename).exists().await {
             return Err(DBError::new("entry already exists"));
         } else {
-            match write(&filename, data.to_bytes()).await {
+            match write(&pathbuf, data.to_bytes()).await {
                 Ok(_) => (),
                 Err(err) => {
                     let mut error = DBError::new("failed to write");
@@ -106,13 +113,17 @@ impl Entry {
         }
         Ok(Self {
             data: data,
-            filename: filename,
+            filename: pathbuf,
             last_used: Cell::new(Instant::now()),
         })
     }
 
-    async fn get(filename: &str) -> Result<Self, DBError> {
+    async fn get<P>(filename: P) -> Result<Self, DBError>
-        let content = match read(filename).await {
+    where
+        P: Into<PathBuf>,
+    {
+        let pathbuf = filename.into();
+        let content = match read(&pathbuf).await {
             Ok(text) => text,
             Err(err) => {
                 let mut error = DBError::new("read error");
@@ -130,7 +141,7 @@ impl Entry {
         };
         Ok(Self {
             data: data,
-            filename: filename.to_string(),
+            filename: pathbuf,
             last_used: Cell::new(Instant::now()),
         })
     }
@@ -173,8 +184,15 @@ impl Entry {
 struct Cache;
 
 impl Cache {
-    async fn new(dir: &str) -> Self {
+    async fn new<P>(dir: P) -> Self
-        Self
+    where
+        P: Into<PathBuf>,
+    {
+        let pathbuf = dir.into();
+        let entry = pathbuf.as_path().join(ENTRY);
+        let store = DataType::new("store").unwrap();
+        Entry::new(entry, store).await.unwrap();
+        Self {}
     }
 }
 
@@ -463,7 +481,7 @@ mod entry {
             output.data().list(["database"].to_vec()).unwrap(),
             data.list(["database"].to_vec()).unwrap()
         );
-        assert_eq!(output.filename, filename);
+        assert_eq!(output.filename.to_str().unwrap(), filename);
         assert!(
             Duration::from_secs(1) > item.elapsed(),
             "last_used should have been reset."
@@ -568,5 +586,16 @@ mod cache {
     async fn create() {
         let dir = tempdir().unwrap();
         Cache::new(dir.path().to_str().unwrap()).await;
+        let epoint = dir.path().join(ENTRY);
+        assert!(
+            epoint.is_file(),
+            "{} did not get created.",
+            epoint.display()
+        );
+        let entry = Entry::get(epoint.to_str().unwrap()).await.unwrap();
+        assert_eq!(
+            entry.data().list(["database"].to_vec()).unwrap(),
+            Vec::<String>::new()
+        );
     }
 }