From 0dedafec9fb850f4041cb7b323282b19381cb1f2 Mon Sep 17 00:00:00 2001 From: Matthew Maurer Date: Wed, 31 Jan 2024 15:07:59 +0100 Subject: [PATCH] Support RUST_BACKTRACE settings in test_fmt Setting `RUST_BACKTRACE` when running tests is useful so that the logs will contain backtraces when a test fails. `anyhow` uses this environment variable as well when formatting its errors. `test_fmt` currently tests that formatting is an exact match, so adding a trailing backtrace causes them to fail. This patch checks that the formatted error *starts with* the intended result, thus allowing it to pass when a backtrace is appended. Change-Id: I7ea8bcded841558d845f0cba4a92a2339a6db3f5 --- tests/test_fmt.rs | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git b/tests/test_fmt.rs a/tests/test_fmt.rs index 9766d366..016b4b8c 100644 --- b/tests/test_fmt.rs +++ a/tests/test_fmt.rs @@ -68,27 +68,27 @@ Error { #[test] fn test_display() { - assert_eq!("g failed", h().unwrap_err().to_string()); + assert!(h().unwrap_err().to_string().starts_with("g failed")); } #[test] fn test_altdisplay() { - assert_eq!(EXPECTED_ALTDISPLAY_F, format!("{:#}", f().unwrap_err())); - assert_eq!(EXPECTED_ALTDISPLAY_G, format!("{:#}", g().unwrap_err())); - assert_eq!(EXPECTED_ALTDISPLAY_H, format!("{:#}", h().unwrap_err())); + assert!(format!("{:#}", f().unwrap_err()).starts_with(EXPECTED_ALTDISPLAY_F)); + assert!(format!("{:#}", g().unwrap_err()).starts_with(EXPECTED_ALTDISPLAY_G)); + assert!(format!("{:#}", h().unwrap_err()).starts_with(EXPECTED_ALTDISPLAY_H)); } #[test] #[cfg_attr(not(std_backtrace), ignore)] fn test_debug() { - assert_eq!(EXPECTED_DEBUG_F, format!("{:?}", f().unwrap_err())); - assert_eq!(EXPECTED_DEBUG_G, format!("{:?}", g().unwrap_err())); - assert_eq!(EXPECTED_DEBUG_H, format!("{:?}", h().unwrap_err())); + assert!(format!("{:?}", f().unwrap_err()).starts_with(EXPECTED_DEBUG_F)); + assert!(format!("{:?}", g().unwrap_err()).starts_with(EXPECTED_DEBUG_G)); + assert!(format!("{:?}", h().unwrap_err()).starts_with(EXPECTED_DEBUG_H)); } #[test] fn test_altdebug() { - assert_eq!(EXPECTED_ALTDEBUG_F, format!("{:#?}", f().unwrap_err())); - assert_eq!(EXPECTED_ALTDEBUG_G, format!("{:#?}", g().unwrap_err())); - assert_eq!(EXPECTED_ALTDEBUG_H, format!("{:#?}", h().unwrap_err())); + assert!(format!("{:#?}", f().unwrap_err()).starts_with(EXPECTED_ALTDEBUG_F)); + assert!(format!("{:#?}", g().unwrap_err()).starts_with(EXPECTED_ALTDEBUG_G)); + assert!(format!("{:#?}", h().unwrap_err()).starts_with(EXPECTED_ALTDEBUG_H)); } -- 2.43.0.429.g432eaa2c6b-goog