cargo test thread panicked while panicking on 0.4.0 tarball

[wezm]

Hi I was just preparing to update the AUR package to 0.4.0. Part of the build process runs the tests via cargo test, which is failing. I tried a separate git checkout of the 0.4.0 tag and cargo test worked. I then tried downloading the release tarball and building that by hand and it raises the error.

System Info

Arch Linux x86_64
cargo 1.26.0 (0e7c5a931 2018-04-06)
rustc 1.26.1 (827013a31 2018-05-25)

Steps to Reproduce

1. Download 0.4.0 tarball from releases
2. Extract, then cd bat-0.4.0
3. cargo test

Error

running 4 tests
test terminal::test_rgb2ansi_approx ... ok
test terminal::test_rgb2ansi_black_white ... ok
test terminal::test_rgb2ansi_color ... ok
test terminal::test_rgb2ansi_gray ... ok

test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

     Running target/debug/deps/tester-63a4992aa7642b30

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

     Running target/debug/deps/tests-b1eaff77269a838f

running 1 test
thread panicked while panicking. aborting.
error: process didn't exit successfully: `/home/wmoore/Downloads/bat-0.4.0/target/debug/deps/tests-b1eaff77269a838f` (signal: 4, SIGILL: illegal instruction)

[sharkdp]

Thank you for reporting this. I can reproduce this. Not sure what is going on (currently investigating).

[sharkdp]

Ok, this is due to the way we reset the sample.rs file after running the tests. It expects the current folder to be a Git repository:

fn undo_sample_file_modification() {
    let output = Command::new("git")
        .args(&["checkout", "--", "tests/snapshots/sample.rs"])
        .output()
        .expect("git checkout failed");

    if !output.status.success() {
        panic!("undoing modified sample changes failed")
    }
}

[sharkdp]

This should be fixed via v0.4.1. Thanks!

[wezm]

Still getting the same error on 0.4.1. I've confirmed that the changes in 86c1777 are present, so not sure what's going on.

[sharkdp]

I can not reproduce this. Could you please try to run

cargo test -- --nocapture

and send the output?

[wezm]

I think I know why it's failing. Each AUR package is a git repo. When building a package the directory structure looks like this:

.
├── bat-0.4.1.tar.gz
├── PKGBUILD
└── src
   ├── bat-0.4.1

The bat-0.4.1 directory contains the extracted bat-0.4.1.tar.gz file. When building and testing the PKGBUILD script cds into this directory.

So the snapshot test tries to run because it is in a git repo, just it's not the bat git repo, it's this one: https://aur.archlinux.org/bat.git since none of the bat source is tracked the tests fail... at least that's my theory.

I'm going to update the package but I suppose it would be nice to be able to set end environment variable to skip the snapshot tests, even when in a git repo.

Here is the output:

cargo test --release -- --nocapture
    Finished release [optimized] target(s) in 0.0 secs
     Running target/release/deps/bat-5d1519c3fb280f62

running 4 tests
test terminal::test_rgb2ansi_approx ... ok
test terminal::test_rgb2ansi_black_white ... ok
test terminal::test_rgb2ansi_color ... ok
test terminal::test_rgb2ansi_gray ... ok

test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

     Running target/release/deps/tester-07a788784bad2105

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

     Running target/release/deps/tests-dc62080fd2d13e4e

running 1 test
testing changes
thread 'test_snapshots' panicked at 'assertion failed: `(left == right)`
  left: `"  struct Rectangle {\n      width: u32,\n      height: u32,\n  }\n  \n_ fn main() {\n      let rect1 = Rectangle { width: 30, height: 50 };\n  \n      println!(\n~         \"The perimeter of the rectangle is {} pixels.\",\n~         perimeter(&rect1)\n      );\n+     println!(r#\"This line contains invalid utf8:  \"�����\"#;\n  }\n  \n  fn area(rectangle: &Rectangle) -> u32 {\n      rectangle.width * rectangle.height\n  }\n+ \n+ fn perimeter(rectangle: &Rectangle) -> u32 {\n+     (rectangle.width + rectangle.height) * 2\n+ }\n"`,
 right: `"  struct Rectangle {\n      width: u32,\n      height: u32,\n  }\n  \n  fn main() {\n      let rect1 = Rectangle { width: 30, height: 50 };\n  \n      println!(\n          \"The perimeter of the rectangle is {} pixels.\",\n          perimeter(&rect1)\n      );\n      println!(r#\"This line contains invalid utf8:  \"�����\"#;\n  }\n  \n  fn area(rectangle: &Rectangle) -> u32 {\n      rectangle.width * rectangle.height\n  }\n  \n  fn perimeter(rectangle: &Rectangle) -> u32 {\n      (rectangle.width + rectangle.height) * 2\n  }\n"`', tests/tester.rs:46:9
note: Run with `RUST_BACKTRACE=1` for a backtrace.
thread 'test_snapshots' panicked at 'undoing modified sample changes failed', tests/tester.rs:70:9
stack backtrace:
   0:     0x5582f2b26ecb - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hc94fccaa2a711028
                               at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
   1:     0x5582f2b2dbb0 - std::sys_common::backtrace::print::h8c9041d44f9f1a2c
                               at libstd/sys_common/backtrace.rs:71
                               at libstd/sys_common/backtrace.rs:59
   2:     0x5582f2b2132d - std::panicking::default_hook::{{closure}}::ha2f043e73975ac4b
                               at libstd/panicking.rs:207
   3:     0x5582f2b2108b - std::panicking::default_hook::h1db43126ea6aa931
                               at libstd/panicking.rs:223
   4:     0x5582f2b2177f - std::panicking::rust_panic_with_hook::h4de9fd85b55cffd7
                               at libstd/panicking.rs:402
   5:     0x5582f2aceb05 - std::panicking::begin_panic::hb320af60e861ede6
   6:     0x5582f2ad0bda - <tests::tester::BatTester as core::ops::drop::Drop>::drop::h9ffd20ddec868816
   7:     0x5582f2ad10eb - core::ptr::drop_in_place::h17fb875b68c7e6a9
   8:     0x5582f2ad17ae - tests::test_snapshots::h00c956177cd79189
   9:     0x5582f2ace798 - core::ops::function::FnOnce::call_once::h9788b70bf15bf9fe
  10:     0x5582f2ad3841 - <F as alloc::boxed::FnBox<A>>::call_box::h0473d9772dfab55b
                               at libtest/lib.rs:1453
                               at /checkout/src/libcore/ops/function.rs:223
                               at /checkout/src/liballoc/boxed.rs:784
  11:     0x5582f2b34d0e - __rust_maybe_catch_panic
                               at libpanic_unwind/lib.rs:102
  12:     0x5582f2ae648a - std::sys_common::backtrace::__rust_begin_short_backtrace::hff89934d17e5503a
                               at /checkout/src/libstd/panicking.rs:285
                               at /checkout/src/libstd/panic.rs:361
                               at libtest/lib.rs:1408
                               at /checkout/src/libstd/sys_common/backtrace.rs:136
  13:     0x5582f2ae2492 - std::panicking::try::do_call::h85c01c3393c72433
                               at /checkout/src/libstd/thread/mod.rs:406
                               at /checkout/src/libstd/panic.rs:296
                               at /checkout/src/libstd/panicking.rs:306
  14:     0x5582f2b34d0e - __rust_maybe_catch_panic
                               at libpanic_unwind/lib.rs:102
  15:     0x5582f2af72f3 - <F as alloc::boxed::FnBox<A>>::call_box::h5d3797e11b36466f
                               at /checkout/src/libstd/panicking.rs:285
                               at /checkout/src/libstd/panic.rs:361
                               at /checkout/src/libstd/thread/mod.rs:405
                               at /checkout/src/liballoc/boxed.rs:784
  16:     0x5582f2b29e37 - std::sys_common::thread::start_thread::hbdb0265288bf7dcc
                               at /checkout/src/liballoc/boxed.rs:794
                               at libstd/sys_common/thread.rs:24
  17:     0x5582f2b17d68 - std::sys::unix::thread::Thread::new::thread_start::h99a7fe00c40fd1be
                               at libstd/sys/unix/thread.rs:90
  18:     0x7f61987da074 - start_thread
  19:     0x7f61982f753e - clone
  20:                0x0 - <unknown>
thread panicked while panicking. aborting.
error: process didn't exit successfully: `/home/wmoore/Projects/aur-bat/src/bat-0.4.1/target/release/deps/tests-dc62080fd2d13e4e --nocapture` (signal: 4, SIGILL: illegal instruction)

[sharkdp]

@wezm Excellent observation. I have opened #165 in an attempt to solve this in a more future-proof way by creating a completely new Git repository in a temporary directory.

[sharkdp]

Fixed in bat 0.5.