refactor: move ANSIEscapeCode and tests to own module

src/ansi_escape_code.rs

@@ -0,0 +1,12 @@
+pub struct ANSIEscapeCode {
+    parameter: String,
+}
+impl ANSIEscapeCode {
+    pub fn new(parameter: String) -> Self {
+        ANSIEscapeCode { parameter }
+    }
+
+    pub fn code(&self) -> String {
+        format!("\\x1b[{}m", self.parameter)
+    }
+}

src/lib.rs

@@ -1,29 +1,3 @@
-struct ANSIEscapeCode {
-    parameter: String,
-}
-impl ANSIEscapeCode {
-    fn new(parameter: String) -> Self {
-        ANSIEscapeCode { parameter }
-    }
+mod ansi_escape_code;
 
-    fn code(&self) -> String {
-        format!("\\x1b[{}m", self.parameter)
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    #[test]
-    fn create_simple_ansi_code() {
-        let p = ANSIEscapeCode::new(String::from("33"));
-        assert_eq!(p.code(), "\\x1b[33m")
-    }
-
-    #[test]
-    fn create_reset_ansi_code() {
-        let reset_ansi = ANSIEscapeCode::new(String::from("0"));
-        assert_eq!("\\x1b[0m", reset_ansi.code());
-    }
-}
+// =======================================================================

src/test.rs

@@ -0,0 +1,23 @@
+#[cfg(test)]
+mod ansi_escape_code_test {
+    use crate::ansi_escape_code::ANSIEscapeCode;
+    use super::*;
+
+    #[test]
+    fn create_simple_ansi_code() {
+        let p = ANSIEscapeCode::new(String::from("33"));
+        assert_eq!(p.code(), "\\x1b[33m")
+    }
+
+    #[test]
+    fn create_reset_ansi_code() {
+        let reset_ansi = ANSIEscapeCode::new(String::from("0"));
+        assert_eq!("\\x1b[0m", reset_ansi.code());
+    }
+
+    #[test]
+    fn create_bright_cyan_ansi_code() {
+        let reset_ansi = ANSIEscapeCode::new(String::from("96"));
+        assert_eq!("\\x1b[96m", reset_ansi.code());
+    }
+}