Improve code generation test

Cargo.toml

@@ -42,7 +42,6 @@ arbitrary = { version = "1.0.0", features = ["derive"], optional = true }
 wasm-bindgen = { version = "0.2", optional = true }
 js-sys = { version = "0.3", optional = true }       # contains FFI bindings for the JS Date API
 
-
 [target.'cfg(windows)'.dependencies]
 windows-targets = { version = "0.48", optional = true }
 
@@ -56,9 +55,10 @@ iana-time-zone = { version = "0.1.45", optional = true, features = ["fallback"]
 android-tzdata = { version = "0.1.1", optional = true }
 
 [dev-dependencies]
+bincode = { version = "1.3.0" }
 serde_json = { version = "1" }
 serde_derive = { version = "1", default-features = false }
-bincode = { version = "1.3.0" }
+similar-asserts = "1.5"
 
 [target.'cfg(all(target_arch = "wasm32", not(any(target_os = "emscripten", target_os = "wasi"))))'.dev-dependencies]
 wasm-bindgen-test = "0.3"

tests/win_bindings.rs

@@ -2,21 +2,20 @@
 
 use std::fs;
 use windows_bindgen::bindgen;
+use similar_asserts::assert_eq;
 
 #[test]
 fn gen_bindings() {
     let input = "src/offset/local/win_bindings.txt";
     let output = "src/offset/local/win_bindings.rs";
-    let existing = fs::read_to_string(output).unwrap();
+    let existing = fs::read_to_string(output).unwrap().replace("\r\n", "\n");
 
     let log = bindgen(["--etc", input]).unwrap();
     eprintln!("{}", log);
 
     // Check the output is the same as before.
     // Depending on the git configuration the file may have been checked out with `\r\n` newlines or
     // with `\n`. Compare line-by-line to ignore this difference.
-    let new = fs::read_to_string(output).unwrap();
-    if !new.lines().eq(existing.lines()) {
-        panic!("generated file `{}` is changed.", output);
-    }
+    let new = fs::read_to_string(output).unwrap().replace("\r\n", "\n");
+    assert_eq!(new, existing);
 }