test(mdman): Switch to snapbox

- We use it elsewhere
- We don't have to bake our own snapshotting solution
- It is more obvious how to update the snapshots

Author: epage

Cargo.lock

@@ -69,7 +69,6 @@ pasetors = { version = "0.6.7", features = ["v3", "paserk", "std", "serde"] }
 pathdiff = "0.2"
 percent-encoding = "2.3"
 pkg-config = "0.3.27"
-pretty_assertions = "1.4.0"
 proptest = "1.4.0"
 pulldown-cmark = { version = "0.9.3", default-features = false }
 rand = "0.8.5"

Cargo.toml

@@ -16,7 +16,7 @@ serde_json.workspace = true
 url.workspace = true
 
 [dev-dependencies]
-pretty_assertions.workspace = true
+snapbox.workspace = true
 
 [lints]
 workspace = true

crates/mdman/Cargo.toml

@@ -1,13 +1,8 @@
 //! Compares input to expected output.
-//!
-//! Use the MDMAN_BLESS environment variable to automatically update the
-//! expected output.
 
-#![allow(clippy::disallowed_methods)]
+use std::path::PathBuf;
 
 use mdman::{Format, ManMap};
-use pretty_assertions::assert_eq;
-use std::path::PathBuf;
 use url::Url;
 
 fn run(name: &str) {
@@ -27,14 +22,7 @@ fn run(name: &str) {
             name,
             format.extension(section)
         );
-        if std::env::var("MDMAN_BLESS").is_ok() {
-            std::fs::write(&expected_path, result).unwrap();
-        } else {
-            let expected = std::fs::read_to_string(&expected_path).unwrap();
-            // Fix if Windows checked out with autocrlf.
-            let expected = expected.replace("\r\n", "\n");
-            assert_eq!(expected, result);
-        }
+        snapbox::assert_eq_path(expected_path, result);
     }
 }
 

crates/mdman/tests/compare.rs

@@ -1,17 +1,17 @@
 //! Tests for errors and invalid input.
 
-use mdman::{Format, ManMap};
-use pretty_assertions::assert_eq;
 use std::path::PathBuf;
 
+use mdman::{Format, ManMap};
+
 fn run(name: &str, expected_error: &str) {
     let input = PathBuf::from(format!("tests/invalid/{}", name));
     match mdman::convert(&input, Format::Man, None, ManMap::new()) {
         Ok(_) => {
             panic!("expected {} to fail", name);
         }
         Err(e) => {
-            assert_eq!(expected_error, e.to_string());
+            snapbox::assert_eq(expected_error, e.to_string());
         }
     }
 }