moved some functionality to module, added tests

2 files changed, 95 insertions, 17 deletions

diff --git a/src/main.rs b/src/main.rs
index b837d47..2c9122f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,6 +6,7 @@ use users;
 
 mod db;
 mod logging;
+mod posts;
 
 fn main() {
     let arg_matches = clap::App::new("clinte")
@@ -124,13 +125,7 @@ fn post(db: &db::Conn) {
         &body
     };
 
-    let user = users::get_current_username()
-        .unwrap()
-        .into_string()
-        .unwrap();
-
-    stmt.execute_named(&[(":title", &title), (":author", &user), (":body", &body)])
-        .unwrap();
+    posts::new(&mut stmt, title, body).unwrap();
 
     println!();
 }
@@ -181,15 +176,7 @@ fn update(db: &db::Conn) {
     io::stdin().read_line(&mut new_body).unwrap();
     println!();
 
-    let new_title = new_title.trim();
-    let new_body = new_body.trim();
-
-    let title_stmt = format!("UPDATE posts SET title = :title WHERE id = {}", id_num_in);
-    let mut stmt = db.conn.prepare(&title_stmt).unwrap();
-    stmt.execute_named(&[(":title", &new_title)]).unwrap();
-    let body_stmt = format!("UPDATE posts SET body = :body WHERE id = {}", id_num_in);
-    let mut stmt = db.conn.prepare(&body_stmt).unwrap();
-    stmt.execute_named(&[(":body", &new_body)]).unwrap();
+    posts::update(&new_title, &new_body, id_num_in, &db).unwrap();
 }
 
 fn delete(db: &db::Conn) {
@@ -221,5 +208,17 @@ fn delete(db: &db::Conn) {
         return;
     }
 
-    del_stmt.execute(rusqlite::NO_PARAMS).unwrap();
+    posts::exec_stmt_no_params(&mut del_stmt).unwrap();
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    // Just a "Don't Panic" test
+    #[test]
+    fn display() {
+        let db = db::Conn::new();
+        list_matches(&db);
+    }
 }
diff --git a/src/posts.rs b/src/posts.rs
new file mode 100644
index 0000000..28ffac6
--- /dev/null
+++ b/src/posts.rs
@@ -0,0 +1,79 @@
+use crate::db;
+use rusqlite;
+use std::error::Error;
+use users;
+
+type Result<T> = std::result::Result<T, Box<dyn Error>>;
+
+pub fn new(stmt: &mut rusqlite::Statement, title: &str, body: &str) -> Result<()> {
+    let user = users::get_current_username()
+        .unwrap()
+        .into_string()
+        .unwrap();
+
+    stmt.execute_named(&[(":title", &title), (":author", &user), (":body", &body)])?;
+    Ok(())
+}
+
+pub fn update(new_title: &str, new_body: &str, id_num_in: u32, db: &db::Conn) -> Result<()> {
+    let new_title = new_title.trim();
+    let new_body = new_body.trim();
+
+    let title_stmt = format!("UPDATE posts SET title = :title WHERE id = {}", id_num_in);
+    let mut stmt = db.conn.prepare(&title_stmt)?;
+    stmt.execute_named(&[(":title", &new_title)])?;
+    let body_stmt = format!("UPDATE posts SET body = :body WHERE id = {}", id_num_in);
+    let mut stmt = db.conn.prepare(&body_stmt)?;
+
+    stmt.execute_named(&[(":body", &new_body)])?;
+
+    Ok(())
+}
+
+pub fn exec_stmt_no_params(stmt: &mut rusqlite::Statement) -> Result<()> {
+    stmt.execute(rusqlite::NO_PARAMS)?;
+
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    fn post_new() {
+        let db = db::Conn::new();
+        let mut stmt = db
+            .conn
+            .prepare("INSERT INTO posts (title, author, body) VALUES (:title, :author, :body)")
+            .unwrap();
+
+        let title = String::from("TEST TITLE");
+
+        new(&mut stmt, &title, "TEST BODY").unwrap();
+
+        let mut stmt = db
+            .conn
+            .prepare("SELECT * FROM posts WHERE title = :title")
+            .unwrap();
+
+        let out: String = stmt
+            .query_row_named(&[(":title", &title)], |row| row.get::<usize, String>(1))
+            .unwrap();
+
+        assert_eq!("TEST TITLE", &out);
+    }
+
+    #[test]
+    fn post_upd8() {
+        post_new();
+        let db = db::Conn::new();
+        update("NEW TITLE", "TEST BODY", 1, &db).unwrap();
+
+        let mut stmt = db.conn.prepare("SELECT * FROM posts WHERE id = 1").unwrap();
+
+        let out: String = stmt
+            .query_row(rusqlite::NO_PARAMS, |row| row.get::<usize, String>(1))
+            .unwrap();
+        assert_eq!("NEW TITLE", &out);
+    }
+}