sexp: tests to submodule

lib/spanned_sexp/src/lib.rs

@@ -32,13 +32,6 @@ pub enum Sexp {
   List(Vec<Sexp>),
 }
 
-#[test]
-fn sexp_size() {
-  // I just want to see when this changes, in the diff.
-  use std::mem;
-  assert_eq!(mem::size_of::<Sexp>(), mem::size_of::<isize>()*5);
-}
-
 /// The representation of an s-expression parse error.
 pub struct Error {
   /// The error message.
@@ -79,11 +72,6 @@ impl fmt::Debug for Error {
   }
 }
 
-#[test]
-fn show_an_error() {
-  assert_eq!(format!("{:?}", parse("(aaaa").unwrap_err()), "1:4: unexpected eof");
-}
-
 fn get_line_and_column(s: &str, pos: usize) -> (usize, usize) {
   let mut line: usize = 1;
   let mut col:  isize = -1;
@@ -98,20 +86,6 @@ fn get_line_and_column(s: &str, pos: usize) -> (usize, usize) {
   (line, cmp::max(col, 0) as usize)
 }
 
-#[test]
-fn line_and_col_test() {
-  let s = "0123456789\n0123456789\n\n6";
-  assert_eq!(get_line_and_column(s, 4), (1, 4));
-
-  assert_eq!(get_line_and_column(s, 10), (2, 0));
-  assert_eq!(get_line_and_column(s, 11), (2, 0));
-  assert_eq!(get_line_and_column(s, 15), (2, 4));
-
-  assert_eq!(get_line_and_column(s, 21), (3, 0));
-  assert_eq!(get_line_and_column(s, 22), (4, 0));
-  assert_eq!(get_line_and_column(s, 23), (4, 0));
-  assert_eq!(get_line_and_column(s, 500), (4, 0));
-}
 
 #[cold]
 fn err_impl(message: &'static str, s: &str, pos: &usize) -> Err {
@@ -375,6 +349,10 @@ impl fmt::Debug for Sexp {
   }
 }
 
+#[cfg(test)]
+mod test {
+    use super::*;
+
     #[test]
     fn test_hello_world() {
         assert_eq!(
@@ -415,3 +393,31 @@ fn test_space_in_atom() {
         assert_eq!("(\"hello world\")", sexp_as_string);
         assert_eq!(sexp, parse(&sexp_as_string).unwrap());
     }
+
+    #[test]
+    fn show_an_error() {
+        assert_eq!(format!("{:?}", parse("(aaaa").unwrap_err()), "1:4: unexpected eof");
+    }
+
+    #[test]
+    fn line_and_col_test() {
+        let s = "0123456789\n0123456789\n\n6";
+        assert_eq!(get_line_and_column(s, 4), (1, 4));
+
+        assert_eq!(get_line_and_column(s, 10), (2, 0));
+        assert_eq!(get_line_and_column(s, 11), (2, 0));
+        assert_eq!(get_line_and_column(s, 15), (2, 4));
+
+        assert_eq!(get_line_and_column(s, 21), (3, 0));
+        assert_eq!(get_line_and_column(s, 22), (4, 0));
+        assert_eq!(get_line_and_column(s, 23), (4, 0));
+        assert_eq!(get_line_and_column(s, 500), (4, 0));
+    }
+
+    #[test]
+    fn sexp_size() {
+        // I just want to see when this changes, in the diff.
+        use std::mem;
+        assert_eq!(mem::size_of::<Sexp>(), mem::size_of::<isize>()*5);
+    }
+}