flake: skip tests that require a valid EGL display (#2244)

* flake: skip tests that require a valid EGL display

Otherwise:

    niri> failures:
    niri>
    niri> ---- tests::animations::clientside_height_change_doesnt_animate stdout ----
    niri>
    niri> thread 'tests::animations::clientside_height_change_doesnt_animate' panicked at src/tests/animations.rs:87:54:
    niri> called `Result::unwrap()` on an `Err` value: error creating EGL display
    niri>
    niri> Caused by:
    niri>     Unable to obtain a valid EGL Display.
    niri> note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
    niri>
    niri> ---- tests::animations::height_resize_animates_next_y stdout ----
    niri>
    niri> thread 'tests::animations::height_resize_animates_next_y' panicked at src/tests/animations.rs:87:54:
    niri> called `Result::unwrap()` on an `Err` value: error creating EGL display
    niri>
    niri> Caused by:
    niri>     Unable to obtain a valid EGL Display.
    niri>
    niri>
    niri> failures:
    niri>     tests::animations::clientside_height_change_doesnt_animate
    niri>     tests::animations::height_resize_animates_next_y
    niri>
    niri> test result: FAILED. 147 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.45s

* flake: skip all animations tests, present and future

Co-authored-by: Ivan Molodetskikh <yalterz@gmail.com>

* fixup: typo

---------

Co-authored-by: Ivan Molodetskikh <yalterz@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/flake.nix b/flake.nix
index 2e099d13..1a17fde1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -115,6 +115,12 @@
             export XDG_RUNTIME_DIR="$(mktemp -d)"
           '';
 
+          checkFlags = [
+            # These tests require the ability to access a "valid EGL Display", but that won't work
+            # inside the Nix sandbox
+            "--skip=tests::animations"
+          ];
+
           postInstall =
             ''
               installShellCompletion --cmd niri \