extract pretty string to a module

src/formatters.rs

@@ -214,24 +214,15 @@ impl FromStr for Formatter {
 
 #[cfg(test)]
 mod tests {
-    use super::*;
-    use std::fmt;
-
     use pretty_assertions::assert_eq;
     use chrono::TimeZone;
 
+    use crate::test_utils::PrettyString;
+
+    use super::*;
+
     const LONG_NOTE: &'static str = "chatting with bob about upcoming task, district sharing of images, how the user settings currently works etc. Discussing the fingerprinting / cache busting issue with CKEDITOR, suggesting perhaps looking into forking the rubygem and seeing if we can work in our own changes, however hard that might be.";
 
-    #[derive(PartialEq, Eq)]
-    pub struct PrettyString<'a>(pub &'a str);
-
-    /// Make diff to display string as multi-line string
-    impl<'a> fmt::Debug for PrettyString<'a> {
-      fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        f.write_str(self.0)
-      }
-    }
-
     #[test]
     fn test_constrained_lines_long_text() {
         assert_eq!(constrained_lines(LONG_NOTE, 46), vec![

src/lib.rs

@@ -5,3 +5,6 @@ pub mod editor;
 pub mod formatters;
 pub mod error;
 pub mod models;
+
+#[cfg(test)]
+pub mod test_utils;

src/test_utils.rs

@@ -0,0 +1,11 @@
+use std::fmt;
+
+#[derive(PartialEq, Eq)]
+pub struct PrettyString<'a>(pub &'a str);
+
+/// Make diff to display string as multi-line string
+impl<'a> fmt::Debug for PrettyString<'a> {
+  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    f.write_str(self.0)
+  }
+}