Add exec tests and cfg(test) compiler guards

Some tests throughout the codebase were just functions marked with the
`#[test]` macro. It is convention to have these test functions in a
`test` module with a compiler guard `cfg(test)`. This PR updates the
tests that aren't already setup like this to be in the `test` module.

Additionally, this PR also adds tests to the `exec` module to check the
remaining `Token` enum variations.

src/exec/input.rs

@@ -72,7 +72,7 @@ pub fn dirname(path: &str) -> &str {
 
 #[cfg(test)]
 mod tests {
-    use super::{basename, dirname, remove_extension, MAIN_SEPARATOR};
+    use super::*;
 
     fn correct(input: &str) -> String {
         input.replace('/', &MAIN_SEPARATOR.to_string())

src/exec/mod.rs

@@ -150,20 +150,24 @@ impl ArgumentTemplate {
 
 #[cfg(test)]
 mod tests {
-    use super::{ArgumentTemplate, CommandTemplate, Token};
+    use super::*;
 
     #[test]
-    fn tokens() {
-        let expected = CommandTemplate {
+    fn tokens_with_placeholder() {
+        assert_eq!(
+            CommandTemplate::new(&[&"echo", &"${SHELL}:"]),
+            CommandTemplate {
                 args: vec![
                     ArgumentTemplate::Text("echo".into()),
                     ArgumentTemplate::Text("${SHELL}:".into()),
                     ArgumentTemplate::Tokens(vec![Token::Placeholder]),
                 ],
-        };
-
-        assert_eq!(CommandTemplate::new(&[&"echo", &"${SHELL}:"]), expected);
+            }
+        );
+    }
 
+    #[test]
+    fn tokens_with_no_extension() {
         assert_eq!(
             CommandTemplate::new(&["echo", "{.}"]),
             CommandTemplate {
@@ -174,4 +178,43 @@ mod tests {
             }
         );
     }
+
+    #[test]
+    fn tokens_with_basename() {
+        assert_eq!(
+            CommandTemplate::new(&["echo", "{/}"]),
+            CommandTemplate {
+                args: vec![
+                    ArgumentTemplate::Text("echo".into()),
+                    ArgumentTemplate::Tokens(vec![Token::Basename]),
+                ],
+            }
+        );
+    }
+
+    #[test]
+    fn tokens_with_parent() {
+        assert_eq!(
+            CommandTemplate::new(&["echo", "{//}"]),
+            CommandTemplate {
+                args: vec![
+                    ArgumentTemplate::Text("echo".into()),
+                    ArgumentTemplate::Tokens(vec![Token::Parent]),
+                ],
+            }
+        );
+    }
+
+    #[test]
+    fn tokens_with_basename_no_extension() {
+        assert_eq!(
+            CommandTemplate::new(&["echo", "{/.}"]),
+            CommandTemplate {
+                args: vec![
+                    ArgumentTemplate::Text("echo".into()),
+                    ArgumentTemplate::Tokens(vec![Token::BasenameNoExt]),
+                ],
+            }
+        );
+    }
 }

src/internal.rs

@@ -259,32 +259,35 @@ where
 }
 
 #[cfg(test)]
-fn oss(v: &str) -> OsString {
-    OsString::from(v)
-}
+mod tests {
+    use super::*;
 
-/// Ensure that -exec gets transformed into --exec
-#[test]
-fn normal_exec_substitution() {
+    fn oss(v: &str) -> OsString {
+        OsString::from(v)
+    }
+
+    /// Ensure that -exec gets transformed into --exec
+    #[test]
+    fn normal_exec_substitution() {
         let original = vec![oss("fd"), oss("foo"), oss("-exec"), oss("cmd")];
         let expected = vec![oss("fd"), oss("foo"), oss("--exec"), oss("cmd")];
 
         let actual = transform_args_with_exec(original.into_iter());
         assert_eq!(expected, actual);
-}
+    }
 
-/// Ensure that --exec is not touched
-#[test]
-fn passthru_of_original_exec() {
+    /// Ensure that --exec is not touched
+    #[test]
+    fn passthru_of_original_exec() {
         let original = vec![oss("fd"), oss("foo"), oss("--exec"), oss("cmd")];
         let expected = vec![oss("fd"), oss("foo"), oss("--exec"), oss("cmd")];
 
         let actual = transform_args_with_exec(original.into_iter());
         assert_eq!(expected, actual);
-}
+    }
 
-#[test]
-fn temp_check_that_exec_context_observed() {
+    #[test]
+    fn temp_check_that_exec_context_observed() {
         let original = vec![
             oss("fd"),
             oss("foo"),
@@ -334,11 +337,10 @@ fn temp_check_that_exec_context_observed() {
 
         let actual = transform_args_with_exec(original.into_iter());
         assert_eq!(expected, actual);
-}
+    }
 
-/// Parsing and size conversion tests
-#[cfg(test)]
-mod size_parsing {
+    /// Parsing and size conversion tests
+    mod size_parsing {
         use super::*;
 
         macro_rules! gen_size_filter_parse_test {
@@ -428,11 +430,10 @@ mod size_parsing {
             tebi_minus_upper:         ("-1Ti",    SizeFilter::Max(1099511627776)),
             tebi_minus_suffix_upper:  ("-1TIB",   SizeFilter::Max(1099511627776)),
         }
-}
+    }
 
-/// Invalid parse testing
-#[cfg(test)]
-macro_rules! gen_size_filter_failure {
+    /// Invalid parse testing
+    macro_rules! gen_size_filter_failure {
     ($($name:ident: $value:expr,)*) => {
         $(
             #[test]
@@ -444,9 +445,8 @@ macro_rules! gen_size_filter_failure {
     };
 }
 
-/// Invalid parse data
-#[cfg(test)]
-gen_size_filter_failure! {
+    /// Invalid parse data
+    gen_size_filter_failure! {
         ensure_missing_symbol_returns_none: "10M",
         ensure_missing_number_returns_none: "+g",
         ensure_missing_unit_returns_none: "+18",
@@ -458,28 +458,29 @@ gen_size_filter_failure! {
         ensure_invalid_unit_returns_none_3: "+1Mv",
         ensure_bib_format_returns_none: "+1bib",
         ensure_bb_format_returns_none: "+1bb",
-}
+    }
 
-#[test]
-fn is_within_less_than() {
+    #[test]
+    fn is_within_less_than() {
         let f = SizeFilter::from_string("-1k").unwrap();
         assert!(f.is_within(999));
-}
+    }
 
-#[test]
-fn is_within_less_than_equal() {
+    #[test]
+    fn is_within_less_than_equal() {
         let f = SizeFilter::from_string("-1k").unwrap();
         assert!(f.is_within(1000));
-}
+    }
 
-#[test]
-fn is_within_greater_than() {
+    #[test]
+    fn is_within_greater_than() {
         let f = SizeFilter::from_string("+1k").unwrap();
         assert!(f.is_within(1001));
-}
+    }
 
-#[test]
-fn is_within_greater_than_equal() {
+    #[test]
+    fn is_within_greater_than_equal() {
         let f = SizeFilter::from_string("+1K").unwrap();
         assert!(f.is_within(1000));
+    }
 }

src/lscolors/mod.rs

@@ -167,31 +167,35 @@ impl LsColors {
     }
 }
 
-#[test]
-fn test_parse_simple() {
-    assert_eq!(Some(Colour::Red.normal()), LsColors::parse_style("31"));
-}
+#[cfg(test)]
+mod test {
+    use super::*;
 
-#[test]
-fn test_parse_decoration() {
+    #[test]
+    fn test_parse_simple() {
+        assert_eq!(Some(Colour::Red.normal()), LsColors::parse_style("31"));
+    }
+
+    #[test]
+    fn test_parse_decoration() {
         assert_eq!(Some(Colour::Red.normal()), LsColors::parse_style("00;31"));
 
         assert_eq!(Some(Colour::Blue.italic()), LsColors::parse_style("03;34"));
 
         assert_eq!(Some(Colour::Cyan.bold()), LsColors::parse_style("01;36"));
-}
+    }
 
-#[test]
-fn test_parse_decoration_backwards() {
+    #[test]
+    fn test_parse_decoration_backwards() {
         assert_eq!(Some(Colour::Blue.italic()), LsColors::parse_style("34;03"));
 
         assert_eq!(Some(Colour::Cyan.bold()), LsColors::parse_style("36;01"));
 
         assert_eq!(Some(Colour::Red.normal()), LsColors::parse_style("31;00"));
-}
+    }
 
-#[test]
-fn test_parse_256() {
+    #[test]
+    fn test_parse_256() {
         assert_eq!(
             Some(Colour::Fixed(115).normal()),
             LsColors::parse_style("38;5;115")
@@ -211,10 +215,10 @@ fn test_parse_256() {
             Some(Colour::Fixed(119).bold()),
             LsColors::parse_style("38;5;119;01")
         );
-}
+    }
 
-#[test]
-fn test_from_string() {
+    #[test]
+    fn test_from_string() {
         assert_eq!(LsColors::default(), LsColors::from_string(&String::new()));
 
         let result = LsColors::from_string(&String::from(
@@ -228,4 +232,5 @@ fn test_from_string() {
             Some(&Colour::Yellow.normal()),
             result.filenames.get("README")
         );
+    }
 }