(TEST): Filesystem tests and cleaned up

lib/filesystem.rs

@@ -18,3 +18,32 @@ impl Filesystem {
         file.write_all(contents.as_bytes())
     }
 }
+
+#[cfg(test)]
+mod filesystem_tests {
+    use std::fs;
+    use super::Filesystem;
+
+    #[test]
+    fn reads_file() {
+        match Filesystem::read_file("./test/filesystem_test.md") {
+            Ok(s) => assert_eq!(s, "DO NOT DELETE. Used in filesystem.rs tests.\n"),
+            Err(err) => unreachable!("{}", err)
+        }
+    }
+
+    #[test]
+    fn writes_file() {
+        let path = String::from("./test/filesystem_test_output.md");
+        let content = String::from("TESTING OUTPUT");
+        match Filesystem::write_file(&path, &content) {
+            Ok(_) =>  {
+                match fs::read_to_string(&path) {
+                    Ok(s) => assert_eq!(s, content),
+                    Err(err) => unreachable!("{}", err),
+                }
+            },
+            Err(err) => unreachable!("{}", err)
+        }
+    }
+}

lib/node.rs

@@ -131,15 +131,6 @@ impl Node {
 
     /// Add a child to the back of the list of children. If the node is a type which does not allow
     /// children to be added, this function will panic.
-    ///
-    /// Example INVALID usage:
-    ///
-    /// ```rust
-    /// // Attempting to add an inline node as a child of another inline node.
-    /// let mut inline = Node::Text { content: String::from("Hello world") };
-    /// let inline2 = Node::Bold { content: String::from(" bolded text") };
-    /// inline.add_child(inline2); // Will panic! 'Can't add child to this node type.'
-    /// ```
     pub fn add_child(&mut self, child: Node) {
         match self {
             // Structure Nodes

src/main.rs

@@ -2,7 +2,7 @@ use transpiler::parser::Parser;
 use transpiler::filesystem::Filesystem;
 
 pub fn main() -> Result<(), Box<dyn std::error::Error>> {
-    let file = Filesystem::read_file("./test/journal.md");
+    let file = Filesystem::read_file("./journal.md");
     let content;
     match file {
         Ok(s) => content = s,

test/filesystem_test.md

@@ -0,0 +1 @@
+DO NOT DELETE. Used in filesystem.rs tests.

test/filesystem_test_output.md

@@ -0,0 +1 @@
+TESTING OUTPUT

test/input.md

@@ -1,5 +0,0 @@
-
-# Large heading
-
-Holy rust is magical
-