refactor(test): use `tests` module for tests

src/auth.rs

@@ -26,7 +26,7 @@ pub fn check(host: &str, headers: &HeaderMap, token: Option<String>) -> Result<(
 }
 
 #[cfg(test)]
-mod test {
+mod tests {
     use super::*;
     use actix_web::http::HeaderValue;
 

src/config.rs

@@ -51,7 +51,7 @@ impl Config {
 }
 
 #[cfg(test)]
-mod test {
+mod tests {
     use super::*;
     use std::env;
 

src/header.rs

@@ -48,7 +48,7 @@ impl ContentDisposition {
 }
 
 #[cfg(test)]
-mod test {
+mod tests {
     use super::*;
 
     #[test]

src/paste.rs

@@ -118,7 +118,7 @@ impl Paste {
 }
 
 #[cfg(test)]
-mod test {
+mod tests {
     use super::*;
     use crate::random::{RandomURLConfig, RandomURLType};
     use std::env;

src/random.rs

@@ -54,7 +54,7 @@ impl Default for RandomURLType {
 }
 
 #[cfg(test)]
-mod test {
+mod tests {
     use super::*;
 
     #[test]