From bf613ea04ece681a3d1acf32941e5325630a9c0e Mon Sep 17 00:00:00 2001
From: Pig Fang <g-plane@hotmail.com>
Date: Mon, 8 Apr 2024 23:14:05 +0800
Subject: [PATCH] improve error message in stability tests

---
 Cargo.lock         | 42 ++++++++++++++++++++++++++++++++++++++++--
 malva/Cargo.toml   |  1 +
 malva/tests/fmt.rs |  2 +-
 3 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index c0ea90c..894fe91 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -121,6 +121,17 @@ version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "327762f6e5a765692301e5bb513e0d9fef63be86bbc14528052b1cd3e6f03e07"
 
+[[package]]
+name = "bstr"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba3569f383e8f1598449f1a423e72e99569137b47740b1da11ef19af3d5c3223"
+dependencies = [
+ "lazy_static",
+ "memchr",
+ "regex-automata 0.1.10",
+]
+
 [[package]]
 name = "bstr"
 version = "1.7.0"
@@ -475,7 +486,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "759c97c1e17c55525b57192c06a267cda0ac5210b222d6b82189a2338fa1c13d"
 dependencies = [
  "aho-corasick",
- "bstr",
+ "bstr 1.7.0",
  "fnv",
  "log",
  "regex",
@@ -615,6 +626,7 @@ dependencies = [
  "memchr",
  "raffia",
  "serde",
+ "similar-asserts",
  "tiny_pretty",
  "toml",
 ]
@@ -806,10 +818,16 @@ checksum = "380b951a9c5e80ddfd6136919eef32310721aa4aacd4889a8d39124b026ab343"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-automata",
+ "regex-automata 0.4.3",
  "regex-syntax",
 ]
 
+[[package]]
+name = "regex-automata"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
+
 [[package]]
 name = "regex-automata"
 version = "0.4.3"
@@ -923,6 +941,20 @@ name = "similar"
 version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2aeaf503862c419d66959f5d7ca015337d864e9c49485d771b732e2a20453597"
+dependencies = [
+ "bstr 0.2.17",
+ "unicode-segmentation",
+]
+
+[[package]]
+name = "similar-asserts"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e041bb827d1bfca18f213411d51b665309f1afb37a04a5d1464530e13779fc0f"
+dependencies = [
+ "console",
+ "similar",
+]
 
 [[package]]
 name = "slab"
@@ -1060,6 +1092,12 @@ version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
 
+[[package]]
+name = "unicode-segmentation"
+version = "1.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4c87d22b6e3f4a18d4d40ef354e97c90fcb14dd91d7dc0aa9d8a1172ebf7202"
+
 [[package]]
 name = "utf8parse"
 version = "0.2.1"
diff --git a/malva/Cargo.toml b/malva/Cargo.toml
index 3e578c3..d7d535e 100644
--- a/malva/Cargo.toml
+++ b/malva/Cargo.toml
@@ -18,6 +18,7 @@ tiny_pretty = "0.1"
 
 [dev-dependencies]
 insta = { version = "1.31", features = ["glob"] }
+similar-asserts = "1.5"
 toml = "0.7"
 
 [features]
diff --git a/malva/tests/fmt.rs b/malva/tests/fmt.rs
index 89a26ea..061f6da 100644
--- a/malva/tests/fmt.rs
+++ b/malva/tests/fmt.rs
@@ -53,7 +53,7 @@ fn fmt_snapshot() {
         );
 
         let regression_output = format_text(&output, syntax, &options).unwrap();
-        assert_eq!(
+        similar_asserts::assert_eq!(
             output,
             regression_output,
             "'{}' format is unstable",